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HomeMy WebLinkAboutBoeing Appendices Vol 2FINAL Pla:n Project e ;fps Imply Cry � � ;. W -ilk 16 SCH NO. R002031015 mop Administrative Draft EIR Completed: November, 2002 Draft EIR Completed: December, 2002 EIR Completed: Aril 2003 FINAL ENVIRONMENTAL IMPACT REPORT 02 -1 APPENDICES VOLUME 2 BOEING SPECIFIC PLAN PROJECT SCH No. 2002031015 Lead Agency: CITY OF SEAL BEACH Department of Development Services 211 Eighth Street Seal Beach, California 90740 Contact: Mr. Mac Cummins 552.431.2527 Prepared by: RBF CONSULTING 14725 Alton Parkway Irvine, California 92518 -2059 Contact. Mr. Glenn Lajoie, AICP 949.472.3805 April 2003 JN 10- 101770 TABLE OF CONTENTS Section 15.0: Appendices Volume 1 15.1 Initial Study /Notice of Preparation 15.2 Traffic Study Volume 2 15.3 Air Quality Data 15.4 Noise Data 15.5 Biological Technical Report 15.6 Cultural Resources Assessment 15.7 Geology /Soils Analysis 15.8 Hydrology /Water Quality Data 15.9 NOP Correspondence 15.10 Proposed Boeing Specific Plan 15.11 Public Health and Safety Letters fw- AN&I Air Quality Data rays. i URBEMIS 2001 For Windows 6.2.2 File Name: C:1Program Files\URBEMIS 2001 For Windows\Projects2k\Boeing.urb Project Name: BSC Group Specific Plan Project Location: South Coast Air Basin (Los Angeles area) SUMMARY REPORT (Pounds/Day -- Summer) CONSTRUCTION EMISSION ESTIMATES ROG NOx Co PM10 SO2 TOTALS ( lbs /day.unmitigated) 47.38 613.37 9.64 99.57 69.19 TOTALS (lbs /day, mitigated) 45.25 582.97 9.64 62.01 65.73 AREA SOURCE EMISSION ESTIMATES ROG Nox co PM10 S02 TOTALS ( lbs /day,unmitigated) 0.32 1.72 2.12 0.01 0.00 TOTALS (lbs /day. mitigated) 0.26 0.91 1.80 0.01 0.00 OPERATIONAL (VEHICLE) EMISSION ESTIMATES ROG Nox Co PM10 S02 TOTALS (ppd, unmitigated) 141.33 122.38 1.591.05 79.17 1.02 TOTALS (ppd, mitigated) 139.38 120.36 1, 554 .79 77.87 1.01 Page: 2 URBEMIS 2001 For Windows 6.2.2 File Name: C:1Program FilesIURBEMIS 2001 For Windows\Projects2k\Boeing.urb Project Name: BSC Group Specific Plan Project Location: South Coast Air Basin (Los Angeles area) SUMMARY REPORT (Pounds /Day - Winter) CONSTRUCTION EMISSION ESTIMATES ROG NOx CO PM10 SO2 TOTALS (lbs /day, unmitigated) 47.38 613.37 9.64 99.67 69.19 TOTALS (lbs /day, mitigated) 45.25 582.97 9.64 62.01 65.73 AREA SOURCE EMISSION ESTIMATES ROG NOx CO PM10 SO2 TOTALS(lbs /day unmitigated) 0.12 1.70 0.68 0.00 0.00 TOTALS (lbslday, mitigated) 0.06 0.89 0.36 0.00 0.00 OPERATIONAL (VEHICLE) EMISSION ESTIMATES ROG NOx CO PM10 S02 TOTALS (ppd, unmitigated) 138.52 181.61 1 ■523.96 79.17 0.91 TOTALS (ppd, mitigated) 136.23 178.64 11498.73 77.87 0.89 Page: 3 URBEMIS 2001 For Windows 6.2.2 File Name: C:1Program Files\URBEMIS 2001 For Windows\Projects2k\Boeing.urb Project Name: BSC Group Specific Plan Project Location: South Coast Air Basin (Los Angeles area) SUMMARY REPORT (Tons/Year) CONSTRUCTION EMISSION ESTIMATES ROG NOx Co PM10 S02 TOTALS (tpy, unmitigated) 6.06 79.74 1.25 12.92 8.99 TOTALS (tpy, mitigated) 5.78 75.79 1.25 8.03 8.55 AREA SOURCE EMISSION ESTIMATES ROG NOx Co PM10 S02 TOTALS (tpy, unmitigated) 0.04 0.31 0.25 0.00 0.00 TOTALS (tpy, mitigated) 0.01 0.16 0.20 0.00 0.00 OPERATIONAL (VEHICLE) EMISSION ESTIMATES ROG NOx Co PM10 S02 TOTALS (tpy, unmitigated) 25.62 25.94 286.29 14.45 0.18 TOTALS (tpy, mitigated) 25.24 25.51 281.55 14.21 0.18 Area Source off -Site Energy consumption Emissions Calculated per Table 9-8, Screening Table for Estimating area Source operational Emissions - Energy Consumption in the SCAQM D CEQA Handbook. Table 7 EMISSION FACTORS BY LAND USE Land Use Unit of Measure Emissions Factor (lbs/day) ROG NOx c0 I PM 10 Light Industrial 1, 000 sq. ft. 0.00024 0.02773 0.00482 0.00095 Hotel Number of Rooms 0.00019 0.02142 0.00373 0.00075 Resta urant 1, 000 sq. ft. 1 0.00130 0.14903 0.02592 0.00518 Table 2 OFF -SITE ENERGY CONSUMPTION EMISSION FACTORS Land Use Unit of Measure Emissions Factor (lbs/day) ROG NOx CO PM10 Light Industrial 973,000 sq. ft. 0.234 26.981 4.690 0.934 Hotel 120 Rooms 0.007 0.772 0.134 0.026 Restaurant 32,500 sq. ft. 0.042 4.843 0.822 0.168 Parenthetical URBEMIS2001 Assumptions for All Building Phases: Boeing Space center Specific Plan EIR Project Date 10/24/02 LAND USES Planning Area 1 Amount Project Land Use Trip Rate' Unit Type % Emp. Trips 628 Type 7.3 1000 sq. ft 50 345 General Light 7.17 1000 sq. ft 50 32.5 Industry 81.28 1,000 8 Planning Area 3 Amount Project Land Use Type Trip Rate Unit Type % Emp. Trips 628 office Park 7.3 1000 sq. ft 50 Planning Area 4 Amount Project Land Use Trip Rate Unit Type % Emp. Trips Type lZu motel oom 32.5 General office 81.28 1,000 8 Building CONSTRUCTION SOURCES Demolition Buildinq Demolition: For determining the quantity of demolished material, a model building representing the single story group of buildings is utilized and modeled usingthe following equation: (117.2 ft. length x 10 ft. height x 4 [vertical walls]) + (13,742 sq. ft. x 2 (floor and roofl) 32,172 sq. ft. of demolished building material 32,172 sq. ft. of demolished building material x .75 ft. (average assumed thickness) x 1.25 ft. (to account for interior walls throu hout 30,151.25 cu. ft. total demolished material Total Demolition: Total demolished materials would include single story story buildings (30,161.25 cu-ft). Grading: Phase Acreage Per Day Amount of Days 10 00% of site) 5 260 E ui ment Exhaust: 1 motor graders 10 off-highway trucks (dump, 2 Scaper 1 Tracked Loader 1 Wheeled Dozer 1 Wheeled Loader 1 Roller (All Phases) Fugitive. Dust: water and crew) (URBEMIS2001 default all phases) Worker Idps: (URBEMIS2001 default all phases) Asphalt: 6 hour operation 8 hour operation 6 hour operation 8 hour operation 8 hour operation 8 hour operation 8 hour operation Asphalt covering is based on a total of 192,009. ft. of asphalt for the proposed project. Stationary Eg u,i pment: (URBEMIS2001 default all phases) Mobile Equipment: 2 Fork Lift (50 HP) 2 Fork Lift (175 HP) 1 Off Highway Truck 2 Wheeled Dozer 10 Wheeled Loader 2 Miscellaneous (All Phases) Architectural_ coatings: Year: Off (All Phases) 6 hour operation 6 hour operation 4 hour operation 8 hour operation 6 hour operation 6 hour operation Phase Year of completion Working Days 2006 250 (assumed normal average) Construction Mitigation: None cited by the Project Applicant (All Phases) AREA SOURCES Fuel combustion: (URBEMIS2001 default all phases) Wood Staves: Off Fireplaces_ Off Landscape Maintenance Equipment: Phase Year of Completion Summer Days i 2006 180 Consumer Products: (URBEMIS2001 default all phases) Mitigation: None cited by Project Applicant (All Phases) OPERATIONAL SOURCES Anticipated Fleet Mix: (URBEMIS2001 default all phases) Year: Trip Characteristics: (URBEMIS2001 Default all phases) Temperature Data: 40 to 80 degrees Fahrenheit (All Phases) Variable Starts: (URBEMIS2001 default all phases) Paved I Unpaved Roads: 100% paved (All Phases) Pass Trips: On for all phase's Operational Mitigation Measures: None cited by the Project Applicant (All Phases) 15.4 Noise Data Adolfo Lopez - West of Seal Beach - Existing +Future +Related Projects IIIIIIIIf! 111111 11IIf 1111111111 IIIII I11111IIIl !!1111 1111111111111111IIIIIIIII 1111111111IIIIIIl1111 (11111111111111111111 1111111111111111 Iflllllllll 11 Speed Vehicle Speed (mph, 0 to 100) 40 II II Grad Road Gradient ( %, 0 to 5) 11 ll Sep1 Centerline Separation (feet) 12 11 H with » (Usually 23' for 2 -lane, 38' 11 11 median » for 4 -lane, 50' for 5 -lane) 11 II Dist1 Distance from observer to the 100 H 11 nearest lane centerline (>50') Il II (used in calculations) 11 fl Dist2 Dist. from ROW to N LC 5 11 II *** CNEL a@ 100' (SOFT) 52.19 Il 11 VOL TOTAL Vehicle Volume (two -way) 19500 Il Il ALPHA Hard site =0, Soft site =0.5 0.5 I! DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 34 22 <-- hard 60 CNEL soft 32 20 11 -1 55 CNEL 75 3 3 -8 74 CNEL 7 -5 l! Il Il View View Angie of Observer (180) 180 11 11 SHIELDING (adjust output by hand) II 11 Woods Thickness of woodland between 0 H II observer and road (feet) 11 ll Cover Percent view coverage between 0 Il 11 observer and road (0 -100) 11 11 Rows Building rows between observer 0 11 11 and roadway (0-4). 1! IIIIIIIIII 111111 1111! llllllllll IIIII Illlllllll 111111 IIIIIIIIIIII��IIIIIIIIllll 1111111111111111) 1111 1111111111111111 1IIII1f111I11l11111 ll111111111 RBF Consulting. 12- Dec -02 JN 10 -1 00183 Seal Beach Blvd. - Golden Rain to St Andrews - Existing+ Futu re+Related Projects 1111111111111111 1111111111IIIII I11I11111111111111111 IIIIIIf111111�1111111I1 �llllllllllllllllllfllifl1111111111 11111I11111111111111i1111 11111III111 H Speed Vehicle Speed (mph, 0 to 100) 45 H H Grad Road Gradient ( %, 0 to 5) H H Sept centerline Separation (feet) 42 H H with » (Usually 23' far 2 -lane, 38' H H median » for 4 -lane, 50' for 6-lane) H H Dist1 Distance from observer to the 100 H H nearest lane centerline 050'3 H H (used in calculations) H 11 Dist2 Dist. from ROW to NLC 18 H H *** CNEL a@ 104' (SOFT) 88.75 H H VOL TOTAL Vehicle Volume (two -way) 38,080 1I H ALPHA Hard site =0, Soft site =0.5 0.5 H DISTANCE FROM RESULTS DISTANCE FROM Cntrline ROW Centerline 1100 <-- hard 80 CNEL soft 338 352 325 65 CNEL 156 115 77 70 CNEL 72 H H View View Angle of Observer X180) 180 H SHIELDING (adjust output by hand) 11 ....�...'......�.......... H Woods Thickness of woodland between 0 ll observer and road (feet) H Corer Percent view coverage between 0 H observer and road (0 -100) H Rows Building rows between observer 0 H and roadway (0-4). !11l1lIIII f1I111 llllf 111111l1111111I 1111111111111111 111► �If11f111E1llillll1111111fllllllll111111111 111111111 lllllllllllllllllllll llfllll RBF Consulting. 12- Dec -02 JN 10- 100183 ROW 299 119 35 H H H H H H H H H H 11111111111 Seal Beach Blvd. - Road A to Road C - Existing +Future +Related Projects 1lllllllll 111111 111111111111111 Il1Il llllllllll 111111 IIIIIIIIIIIIIIIIIIIIIIIl11111111111111IIllllli11111�11! II1111111�11I1111�1111111111 11111111111 II Speed Vehicle Speed (mph, 0 to 100) 50 II 11 Grad Road Gradient ( %, 0 to 5) 1! 11 Sept Centerline Separation (feet) 42 !1 11 with » (Usually 23' for 2 -lane, 38' II 11 median » for 4 -lane, 50' for 5 -lane) ll 11 Distl Distance from observer to the 100 Il if nearest lane centerline (>50') 11 11 (used in calculations) H 11 Dist2 Dist. from ROW to NLC 18 11 ll *** CNEL @a 1004 (SOFT) 66.96 11 11 VOL TOTAL Vehicle Volume (two -way) 309554 11 II ALPHA Hard site =0, Soft site =0.5 0.5 ll DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW centerline ROW 1155 <-- hard 50 CNEL soft --a 347 310 380 343 65 CNEL 161 124 124 83 74 CNEL 75 38 II H H View View Angle of observer ( 180) 180 Il H SHIELDING (adjust output by hand) 11 H Woods Thickness of woodland between 0 11 H observer and road (feet) H 11 Cover Percent view coverage between 0 H fl observer and road (0 -100) H ll Rows Building rows between observer 0 H 11 and roadway (0-4). 11 II1111I1fI llllll 111111111111111 IIIII 1111111111 llllll llllll 11111111111I1�1111111111illllllllllllllllllllll�l IIIIIII111111I1111II11111111 llllll�llll RBF Consulting. 12- Dec -02 JN 1 0- 100183 Seal Beach Blvd. - Road C to PCH - Existing +Future +Related Projects Ill !1111!! ll !Ill 11111 1111111111 11111 II11111111 Illlll III IIIII !III I11111111I111111111 111111111111111 111111 ll l l 11111111111 !11111 l ll 1 !!1111 11111111111 11 Speed Vehicle Speed (mph, 0 to 100) 40 H H Grad Road Gradient ( %, 0 to 5) H H Sepl Centerline Separation (feet) 42 H H with » {Usually 23' for 2 -lane, 38' H H median » for 4 -lane, 50' for 5 -lane} H H Distl Distance from observer to the 100 H H nearest lane centerline (>50') H 11 (used in calculations) H H Dist2 Dist. from ROW to NLC 18 H 11 '` CNEL @ 100' (SOFT) 63.33 H H VOL TOTAL Vehicle Volume (two -way) 23,401 H H ALPHA Hard site =0, Soft site =0.5 0.5 H DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 524 487 <-- hard 60 CNEL soft 199 162 155 128 65 CNEL 92 65 52 15 70 CNEL 43 6 H H H View View Angle of Observer (180) 180 H 11 SHIELDING (adjust output by hand) H 11 H H Woods Thickness of woodland between 0 H H observer and road (feet) 11 11 Cover Percent view coverage between 0 H it observer and road (0 -100) H H Rows Building rows between observer 0 H H and roadway (0 -4). ll llllllllll 111111 Lill! 1111111111 111111111111111 111111 111111111111i1I 111111111111I11111111111I111i1f1111111111111 111111111I1I1111I 111111! 1111111111! RBF Consulting. 12- Dec-02 JN 10- 100183 Seal Beach Blvd. - St Andrews to Westminster- Existing +Future +Related Projects IfI11I1111 111111 111!1 IIl1111111 111111111111111111111 IIIIIIl11111111I111 11111111 11111111111fI11111111��Illll lllllllllllllllllllll 1111111 lllllllllll 11 Speed Vehicle Speed (mph, 0 to 100) 45 11 11 Grad Road Gradient ( %, 0 to 6) 11 11 Sept centerline Separation (feet) 42 11 l! with » (Usually 23' for 2 -lane, 38' Il ll median » for 4 -lane, 50' for 6 -lane) 11 11 Dist1 Distance from observer to the 100 ll 11 nearest lane centerline (>50') II Il (used in calculations) 11 Il Dist2 Dist. from ROW to NLC 18 II 11 *** CNEL a@ 100' (SOFT) 66.75 11 1! VOL TOTAL Vehicle Volume (two -way) 389080 ll II ALPHA Hard site =0, Soft site =0.5 0.5 11 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 1109 <-- hard 60 CNEL soft 336 299 352 325 65 CNEL 156 119 115 77 70 CNEL 72 33 11 Il !1 View View Angle of observer (180) 180 11 11 SHIELDING (adjust output by hand) ll !1 Woods Thickness of woodland between 0 !1 11 observer and road (feet) 1I 11 Cover Percent view coverage between 0 11 11 observer and road (0 -100) ll Il Rows Building rows between observer 0 11 Il and roadway (0-4). 11 Illlllllll !11111 I1111111I111111 111111111111111111111 II1111111111111111111I11 1111111111111111111111111111111 1111I1111111111IIIlI1 fl1111! 11111111111 RBF Consulting. 12- Dec -02 JN 10 -100 183 RBF Consulting. 12- Dec -02 JN 10- 100183 11111111111 H H H H H H H H H H H 1! Row 310 124 38 H l! ll 11 11 11 11 11 ll ll 11111111111 Seal Beach Blvd. - Westminster to Road A - Existing +Future +Related Projects lllfllllll Ilflll 11111 l {!lllllll !11111111111111111111 IIIIIfifI111111 iI111111111111Ifllllllllll11111 111111111 t111I111111111111111I lllllll H Speed Vehicle Speed (mph, 0 to 100) 5o 11 Grad Road Gradient ( %, 0 to 8) 11 Sep'l centerline Separation (feet) 42 II with » (Usually 23' for 2 -lane, 38' 11 median » for 4 -lane, 50' for 8 -lane) fl Distl Distance from observer to the 100 ll nearest lane centerline (>50') 11 (used in calculations) Il Dist2 Dist. from ROW to NLC 18 fl *** CNEL @ 100' (SOFT) 66.95 !! VOL TOTAL Vehicle Volume (two -way) 309554 11 ALPHA Hard site =0, Soft site =0.5 0.5 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW centerline 1166 <— hard 80 CNEL s oft 347 380 343 65 CNEL 181 120 83 70 CNEL 75 11 ll View View Angle of Observer (180) 180 11 SHIELDING (adjust output by hand) 11 Woods Thickness of woodland between 0 ll observer and road (feet) if Cover Percent view coverage between 0 ll observer and road (0 -100) H Rows Building rows between observer 0 fl and roadway (0-4). llllllllll fIIIII 11I111I1111I111 IIIII IIIIIIIIII flllli IIIIIIilll111111111 11111 1111111111111111111111111111111 lllllllllllllllllllll lllllll RBF Consulting. 12- Dec -02 JN 10- 100183 11111111111 H H H H H H H H H H H 1! Row 310 124 38 H l! ll 11 11 11 11 11 ll ll 11111111111 Westminster Avenue - Road A to Road B - Existing +Future +Related Projects IIIIIIIIII 111 !11 11111 ll t 11111 it IIIII Illlllllll 111111 I1111111111II1I11111IIIIIIII 11I111111111I11111I11I 1111111111111111111111111111 JIIII ll Speed Vehicle Speed (mph, 0 to 100) 40 H Grad Road Gradient ( %, 0 to 5) II Sept Centerline Separation (feet) 30 ll with » (Usually 23' for 2 -lane, 38' Il median » for 4 -lane, 50' for 6 -lane) 1! Distl Distance from observer to the 100 !1 nearest lane centerline (>50') 11 (used in Calculations) Il Dist2 Dist. from ROW to N LC 12 11 *** CNEL @a 100' (SOFT) 54.01 !1 VOL TOTAL Vehicle Volume (two -way) 25,538 Il ALPHA Hard site =0, Soft site =0.5 0.5 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline 571 545 <-- hard 60 CNEL soft 211 181 155 65 CNEL 98 57 31 70 CNEL 45 II 11 View View Angle of observer (180) 180 ll SHIELDING (adjust output by hand) ll Woods Thickness of woodland between 0 ll observer and road (feet) 11 Cover Percent view coverage between 0 11 observer and road (0 -100) ll Rows Building rows between observer 0 Il and roadway (0-4). 1111111111111111 11111111111111111111 Illllillll 111111 I�I�IIIIIIIlIll1111�111I111Illlllllllllllfl11 1111111111 lllllllllllllllllllll 1111111 RBF Consulting. 12- Dec -02 JN 10- 100183 IIIIIIIIIII H H H H H H H H Il 11 H H ROW 185 72 19 ll H H H H H H H H ll 11111111111 Westminster Avenue - Road B to Seal Beach - Existing +Future +Related Projects llllllllll 111111 11111 Illlllllll IIIII Illlllllll 111111 111111111111111 �11I IIIlIlllllll111111111 1IIIIIIIIIIIIII llllllll il11111I1111111I11II 111111 full 11 Speed Vehicle Speed (mph, 0 to 100) 40 II H Grad Road Gradient ( %, 0 to 6) 11 1! Sept Centerline Separation (feet) 30 11 9 with » (Usually 23' for 2 -1ane, 38' 11 1! median >> for 4 -lane, 50' for 6 -lane) 11 H Distl Distance from observer to the 100 11 H nearest lane centerline (>50') 11 11 (used in calculations) 11 ll Dist2 Dist. from ROW to NLC 12 11 H *** CNEL @a 100' (SOFT) 64.01 II H VOL TOTAL Vehicle Volume (two -way) 25,538 1! H ALPHA Hard site =0, Soft site =0.5 0.5 1! DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 571 545 <-- hard 60 CNEL soft ---> 211 185 181 155 65 CNEL 98 72 57 31 70 CNEL 45 19 Il 11 H View View Angle of observer (180) 180 11 H SHIELDING (adjust output by hand) Il Il Woods Thickness of woodland between 0 11 11 observer and road (feet) 11 H Cover Percent view coverage between 0 H H observer and road (0 -100) 11 H Rows Building rows between observer 0 ll !f and roadway (0-4). ll 11111111f1111111 11111IIIIlIlflf 1!111 llllllllll 111111 Illlllllllllllllllllllllllllll 11f1lllllllll ll 1111!l1111IIIlIIIIIIIIIIIIIIIII 1111111 Illllllflll RBF Consulting. 12- Dec -02 JN 10 -1 00183 RBF consulting. 12- Dec -02 JN 10 -100 183 Westminster Avenue - Seat Beach to Bolsa Chica - Existing +Future +Related Projects llllllllll 111111 11111111111111111C111I1111I111111111 Illlllllllllllllllllllllll11111I1IlIIIIIIIll11111111111111 1111111111111 {11111IIIIl1 11II1111111 H Speed Vehicle Speed (mph, 0 to 100) 55 11 H Grad Road Gradient ( %, 0 to £) ll H Sep 1 Centerline Separation (feet) 30 H H with » (Usually 23' for 2 -lane, 38' 11 H median » for 4 -lane, 50' for 5 -lane) 11 Il Dist1 Distance from observer to the 100 11 H nearest lane centerline (>50') ll H (used in calculations) 11 H D ist2 Dist. from ROW to N LC 12 II ll f** CN EL a@ 100' (SOFT) 57.74 11 H VOL TOTAL Vehicle Volume (two -way) 2 8,898 II 11 ALPHA Hard site =0, Soft site =0.5 0.5 11 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW centerline ROW ♦ * * * ** 1323 <-- hard 80 CN EL soft ---> 374 348 427 401 55 CN EL 174 148 135 109 70 CNEL 81 55 H II View View Angle of observer (180) 180 1! 11 SHIELDING (adjust output by hand) ll Il Woods Thickness of woodland between 0 H Cl observer and road (feet) 11 11 Cover Percent view coverage between 0 II H observer and road (0 -100) Il ll Rows Building rows between observer 0 11 H and roadway (0-4). 11 IIII1111111111111111111I1C11111111 �1Illllllllllllllllll11111 11 IIII�IIIIIIII�IIIIIIl1111111111111111111111111I1 1111111Illlllflllllllllll �Illlll�lll RBF consulting. 12- Dec -02 JN 10 -100 183 Westminster Avenue - Studebaker to Road A - Existing+Futu re+ Related Projects III11111I! 111!11 11111 Illlllllll IIIII Ilflllllll llflll Illfll1111111111I 1111 11 1111I11111111111I11111I111lIIIlI IIIIIIIIIIIIIIIIIIIII IIll11I 1llllllllll 11 Speed Vehicle Speed (mph, 0 to 100) 40 11 H Grad Road Gradient ( %, 0 to 8) 11 11 Sept Centerline Separation (feet) 30 11 H with » (Usually 23' for 2 -lane, 38' 11 !l median >> for 4 -lane, 50' for 5 -lane) 11 11 Distl Distance from observer to the 100 11 11 nearest lane centerline (>50') 11 11 (used in calculations) 11 Il Dist2 Dist. from ROW to NLC 12 11 !1 *** CNEL @ 100' (SOFT) 83.98 II 11 VOL TOTAL Vehicle Volume (two --way) 25,389 11 11 ALPHA Hard site =0, Soft site= 0.5 0.5 Il DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW centerline ROW 558 542 <-- hard 80 CNEL soft 210 184 179 153 85 CNEL 98 72 57 31 70 CNEL 45 19 Il ll 11 View View Angle of Observer (180) 180 11 11 SHIELDING (adjust output by hand) 11 Il Woods Thickness of woodland between 0 11 !I observer and road (feet) 11 !1 Cover Percent view coverage between 0 ll II observer and road (0 -100) ll 11 Rows Building rows between observer 0 ll 11 and roadway (0-4). 11 Illlllffll Ifllll 1111! IIIIIIIli1 IIIII IIIIIIIIII !11111 f11I11Illllllllf11111 111111Illllllli11 11111111II�lllll! 1111111111111111111111111111 111111111!! RBF Consulting. 12- Dec -02 JN 14- 100183 Westminster Avenue - Seal Beach to Bolsa Chica - Existing +Future +Related Projects +Project IIllllllll 111111 11111 llllllllll 11111 ! lllllllll 111111 I1 11 1111111111111111II1I1111I111111I11I11�1111111111 111 IIIIIIIIf111I111�11111f111I1 (llllllllll ll Speed Vehicle Speed (mph, 0 to 100) 55 11 H Grad Road Gradient ( %, 0 to f) ll fl Sep 1 Centerline Separation (feet) 30 I! Il with » (Usually 23' for 2 -lane, 38' 11 I! median >> for 4 -lane, 50' for 5 -lane) 11 11 Distl Distance from observer to the 100 Il H nearest lane centerline (>50') If ll (used in calculations) fl 11 Dist2 Dist. from ROW to NLC 12 ll H * ** CN EL a@ 100' (SOFT) 58.45 II If VOL TOTAL Vehicle Volume (two -way) 31,391 H fl ALPHA Hard site =0, Soft site =0.5 0.5 11 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW * * # * *# 1559 c -- hard 60 C N E L soft ---> 417 391 501 475 65 C N EL 194 168 158 132 70 CN EL 90 84 H I! 11 View View Angle of Observer (180) 180 H Il SHIELDING (adjust output by hand) 11 !1 Woods Thickness of woodland between 0 fl I! observer and road (feet) H 11 Cover Percent view coverage between 0 H Il observer and road (0 -100) H 11 Rows Building rows between observer 0 Il fl and roadway (0-4). H llllllllll 111111 Illll II11I11111 Illll llllllllll 111111 Illlllllllllllllllll1111lllllll11111111111111l11111111111111 11111111111111111111111 llllllllll) RBF Consulting. 12- Dec -02 JN 10 -1 00183 Seal Beach Blvd. - St Andrews to Westminster - Existing +Future +Related Projects +Project IIIIIll111 Illlll III111111II1111 !1111 1111111111 111111 11111111111111 1111111 111111111111 1111111111111111f11111 lllllllllllllllllllll 11111!1 11111111111 Il Speed Vehicle Speed (mph, 0 to 100) 45 ll H Grad Road Gradient ( %, 0 to 6) H !1 Sept Centerline Separation (feet) 42 fl H with » (Usually 23' for 2 -lane, 38' H Il median for 4 -lane, 50' far 6 -lane) l! Il Distl Distance from observer to the 100 H H nearest lane centerline (>50') II 11 (used in calculations) 11 H Dist2 Dist. from ROW to NLC 18 ll H * ** CNEL a@ 100' (SOFT) 67.19 11 H VOL TOTAL Vehicle Volume (two -way) 42,213 !1 H ALPHA Hard site =0, Soft site =0.5 0.5 1I DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW centerline ROW * * * * ** 1231 <-- hard 60 CNEL soft - - -> 359 322 401 364 65 CNEL 167 130 127 90 70 CNEL 77 40 ll 11 11 View View Angle of Observer (180) 180 H H SHIELDING (adjust output by hand) Il 11 Woods Thickness of woodland between 0 !1 H observer and road (feet) Il H Cover Percent view coverage between 0 11 Il observer and road (0 -100) H 11 Rows Building rows between observer 0 II 11 and roadway (0-4). H llllllllll Illlll 11111 {Illllllll 11!11 Illlllllll 11111! 1111111111 11I11111It11111I11�llllllll��ll111111 1111111 lllllllllllllll1�11111111111 11111111111 RBF Consulting. 12- Dec -02 JN 10- 100183 Seal Beach Blvd. - Golden Rain to St Andrews - Existing +Future +Related Projects +Project 1111!!!11! Il1Il! Illll Illlllllll 11111 llllllllll 111111 IIIIIIIIl1111111 1111111111 1111�I1111111111111IIIIIII�II Ill�lllllllllllllllll 1111111 11111111111 11 Speed Vehicle Speed (mph, 0 to 190) 45 11 Il Grad Road Gradient ( %, 0 to 0) Il Il Sept Centerline Separation (feet) 42 11 11 with » (Usually 23' for 2 -lane, 38' II ll median » for 4 -lane, 50' for 8 -lane) 11 ll Dist'l Distance from observer to the 100 11 !1 nearest lane centerline (>50') ll 11 (used in calculations) ll 11 Dist2 Dist. from ROW to NLC 18 Il II * ** CN EL a@ 100' (SOFT) 67.19 11 II VOL TOTAL Vehicle Volume (two -way) 429213 ll H ALPHA Hard site =o, Soft site =0.5 0.5 11 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW * * # * ** 1231 < -- hard 50 CNEL soft 359 322 401 384 65 CNEL 167 130 127 90 70 CNEL 77 40 Il 11 11 View View Angle of observer ( 180) 180 II 11 SHIELDING (adjust output by hand) 11 !1 Woods Thickness of woodland between 0 ll II observer and road (feet) ll ll Cover Percent view coverage between 0 ll !1 observer and road (0 -100) ll 11 Rows Building rows between observer 0 11 Il and roadway (0-4). 11 llllllllll 111111 Illll Illlllllll 11111 IIIIIIIll111111I IIIllllllllllllllllllllllllllllllllllllllllllll 11111111111111111111111111111 1111111 11111111111 RBF Consulting. 12- Dec -02 JN 10 -1 00183 Adolfo Lopez - West of Seal Beach - Existing +Future +Related Projects +Project Illlllllll 111111 111111111111111 Illll Illlll11111111I1 IIIIIIIII111111I111111 11111II1I1111111I 111 111IIII1I11111IlIIIIl1111I111 111111111111 11111111111 H Speed Vehicle Speed (mph, 0 to 100) 40 H f! Grad Road Gradient ( %, 0 to 5) 11 H Sept centerline Separation (feet) 12 H H with » (Usually 23' for 2 -lane, 38' H H median » for 4 -lane, 50' for 6-lane) H H Dist1 Distance from observer to the 100 !I H nearest lane centerline (>50') H H (used in calculations) H 11 Dish Dist. from ROW to NLC 5 H H *** CNEL @ 100' (SOFT) 53.11 H H VOL TOTAL Vehicle Volume (two -way) 19855 H II ALPHA Hard site =0, Soft site =0.5 0.5 11 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 41 30 <-- hard 60 CNEL soft --a 37 25 13 1 85 CNEL 17 5 4 -8 70 CNEL 8 -4 Il View View Angle of Observer ( 180) 180 II H SHIELDING (adjust output by hand) H ll H II Woods Thickness of woodland between 0 Il H observer and road (feet) 11 11 cover Percent view coverage between 0 11 H observer and road (0 -100) 11 H Rows Building rows between observer 0 Il 11 and roadway (0-4). 11 1 1111111 !1 111111 11111 llllllllll 11111 IIIIIIIIII 111111 IIIIIIIIIIIII11111I1 1111II1 1111III1111111111111111111111111111111I111 1lIIEII 1111111 Illllllllll RBF consulting. 12- Dec -02 JN 10 -1 00183 Seal Beach Blvd. - Road A to Road C - Existing +Future +Related Projects +Project Ilflllllll111111 VIII 111111 1111111111111111111111111 lli111111IIII11111111I111I�11 1111I I111111111I �11III�lIllllllllf11111111111�1 IIIIIII 11111111111 H Speed Vehicle Speed (mph, 0 to 100) 50 H H Grad Road Gradient ( %, 0 to 6) H H Sept centerline Separation (feet) 47 H H with » (Usually 23' for 2 -lane, 38' H H median » for 4 -lane, 50' for 6-lane) H H Dist1 Distance from observer to the 100 11 H nearest lane centerline (>50') ll H (used in calculations) II H Dist2 Dist. from ROW to NLC 18 H H **-* CNEL c7 100' (SOFT) 67.53 H H VOL TOTAL Vehicle Volume (two- way) 349820 Il H ALPHA Hard site =0, Soft site =0.5 0.5 II DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW '`*** 1334 <-- hard 60 CNEL soft 379 341 434 397 65 CNEL 176 139 137 100 70 CNEL 82 44 H H 11 View View Angle of Observer (180) 180 H H SHIELDING (adjust output by hand) H H Woods Thickness of woodland between 0 H 11 observer and road (feet) H H Cover Percent view coverage between 0 H H observer and road (0 -100) H 11 Rows Building rows between observer 0 11 11 and roadway (0-4). 11 IIIIIIIIII IIIIII 111111111111111 VIII I1f1111111111111 l�II1111111111IIIIIIIIIllllllllll 11111111111111 1I1111111111I11111111I1111111 !!1!111 IIIIl11I�11 RBF Consulting. 12- Dec -02 J N 10- 100183 Seal Beach Blvd. - Road C to PCH - Existing +Future +Related. Projects +Project 11I11111111I11111llllllllll1111111111IIII111111111111111111I1111I1I111111I11111111�1111111111111111�IIIIIIIIIIIIIIIIIIIIllll1111111111! 11111111111 11 Speed Vehicle Speed (mph, 0 to 100) 40 ll !1 Grad Road Gradient ( %, 0 to 6) !1 ll Sept Centerline Separation (feet) 42 ll ll with » (Usually 23' far 2 -lane, 38' 11 11 median » for 4 -lane, 50' for 5- -lane) II 11 Distl Distance from observer to the 100 11 11 nearest lane centerline (>50') !1 II (used in calculations) ll 11 Dist2 Dist. from ROW to N LC 18 11 11 CNEL @ 100' (SOFT) 53.6 11 II VOL TOTAL Vehicle Volume (two -way) 24,831 II 11 ALPHA Hard site =0, Soft site =0.5 0.5 11 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 556 510 <-- hard 60 CNEL soft 207 170 176 139 55 CNEL 95 59 56 18 70 CNEL 45 7 11 11 H View View Angle of Observer (180) 180 11 11 SHIELDING (adjust output by hand) 11 !I Woods Thickness of woodland between 0 II 11 observer and road (feet) Il 11 Cover Percent view coverage between 0 ll Il observer and road (0 -100) Il 11 Rows Building rows between observer 0 II 11 and roadway (0-4). H 11I1I11111 111111 111111111111111111111111111111 111111 IIIIIIi1fI11I11111111111111111111111111 1111111111111111 lllllllfllllllllll11111111i1 11111111111 RBF Consulting. 12- Dec -02 JN 10 -1 00183 RBF Consulting. 12- Dec -02 JN 10- 100183 Seat Beach Blvd. - Westminster to Road A - Existing+ Futu re+Related Projects +Project 1111111111111111 Illll IIIIIIIIII Illll 1111111111 !11111 IIIIlll11111I11111 111111111111111111 1I1I1111I1111111111 Illllllli1111111111111111111 IIIllllllfl 11 Speed Vehicle Speed (mph, 0 to 100) 5o 11 fI Grad Road Gradient ( %, 0 to 6) 11 ll Sepl Centerline Separation (feet) 42 11 11 with » (Usually 23' for 2 -lane, 38' !I Il median » for 4 -lane, 50' for 6 -lane) 11 11 Distl Distance from observer to the 100 11 11 nearest lane centerline (>50') !1 11 (used in calculations) 11 11 Dist2 Dist. from ROW to NLC 18 ll ll *** CNEL @ 100' (SOFT) 68.13 11 11 VOL TOTAL Vehicle Volume (two -way) 399956 11 Il ALPHA Hard site =0, Soft site =0.5 0.5 ll DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 1537 <-- hard 60 CNEL soft 415 378 498 461 65 CNEL 193 156 157 120 70 CNEL 89 52 11 Il 11 View View Angle of Observer ( 180) 180 !! 11 SHIELDING (adjust output by hand) Il " �i►rAM�r411`r4w►r Ar ■ ■ ll Woods Thickness of woodland between 0 Il Il observer and road (feet) 11 ll Cover Percent view coverage between 0 II 11 observer and road (0 -100) 11 ll Rows Building rows between observer 0 !l II and roadway (0-4). 11 11I1111I11111111 11111 IIIIIl1I11111I1 IIIIIIIIII 111111 1111111 111111111 �1I1 11111i111111I11I1111lIIIIIII 111�III IIIIIIIIIIIl�1111111111I1�11 Illllllllll RBF Consulting. 12- Dec -02 JN 10- 100183 Westminster Avenue - Road A to Road 8 - Existing +Future +Related Projects +Project Il 1111 l 111 1111!1 11111 Il ll l 11111 111111111111111111111 IIIIIIIII ]VIII III I VIII IIIIIIIIII i1 �I111 X11111111111111111111111 �1 ! ll 11111 l l 11111 l !111111 �lll H Speed Vehicle Speed (mph, 0 to 100) 40 !! H Grad Road Gradient ( %, 0 to 5) H H Sept Centerline Separation (feet) 30 II 11 with » (Usually 23' far 2 -lane, 38' II 11 median » for 4 -lane, 50' for 5 -lane) H H Dist1 Distance from observer to the 100 II 1! nearest lane centerline (>50') 11 1! (used in calculations) !! H Dist2 Dist. from ROW to NLC 12 II H *** CNEL @ 100' (SOFT) 84.89 !1 H VOL TOTAL Vehicle Volume (two -way) 31,216 11 H ALPHA Hard site =0, Soft site =0.5 0.5 11 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 698 572 <— hard 60 CNEL soft 242 216 221 195 85 CNEL 112 88 70 44 70 CNEL 32 28 11 11 11 View View Angle of Observer (180) 180 11 H SHIELDING (adjust output by hand) 11 Il Woods Thickness of woodland between 0 ll Il observer and road (feet) 11 H Cover Percent view coverage between 0 H II observer and road (0 -100) Il 11 Rows Building rows between observer 0 Il 1I and roadway (0-4). 11 1111111111111111 11111 llllllllll 11111 l illl11111111111 111111111111111 !1111 111111111111 1111111111111111 11 !]III IIIIIIIIIIIII t 1111111 1111111 Illllllllll RBF Consulting. 12- Dec -02 JN 10- 140183 RBF consulting. 12- Dec -02 JN 10-100183 Westminster Avenue - Road B to Seal Beach - Existing +Future +Related Projects +Project IIIlllllll !11111 11111111111�11111111111111�1� 1111111 III11111111111111IIIIIII111IIIIII IIII�l1I1111I1�1111111 I�IIIIllllllllllll111 Ill�lll IIIIIIIIIII 11 Speed Vehicle Speed (mph, 0 to 100) 40 H H Grad Road Gradient ( %, 0 to S) H H Sept Centerline Separation (feet) 30 H H with » (Usually 23' for 2 -lane, 38' H H median » for 4 -lane, 50' for 6-lane) 11 H Distl Distance from observer to the 100 H 11 nearest lane centerline (>50') H H (used in calculations) 11 H Dist2 Dist.. from ROW to NLc 12 II H *** CNEL a@ 100' (SOFT) 65 11 H VOL TOTAL Vehicle Volume (two -way) 329052 Il H ALPHA Hard site =0, Soft site =0.5 0.5 ll DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 718 592 <-- hard 60 CNEL soft 246 220 227 201 55 CNEL 114 88 72 45 70 CNEL 53 27 H H II View View Angle of observer (180) 180 H H SHIELDING (adjust output by hand) 11 11 H H Woods Thickness of woodland between 0 H H observer and road (feet) !1 H cover Percent view coverage between 0 H H observer and road (0 -100) H H Rows Building rows between observer 0 H H and roadway (0-4). H 11IIIIIIII II1111 11111 IIIIIIIIII 11111 llllllllll 111111 III111111 11I1 �11111111�111111111111111IIII111111111111! IIIIIIIIIII11111I11111111111 11111111111 RBF consulting. 12- Dec -02 JN 10-100183 Westminster Avenue - Studebaker to Road A - Existing +Future +Related Projects +Project IIIIIIIIII 11!111 11111 lfllllllll 11111 Illlllllll flllll IfIl11I 111111 111111111 11fI111I1111111111111 1111IIIIII!! Ifllllll111111Illlll! IIIIIII IIIIIIl1111 II Speed Vehicle Speed (mph, 0 to 100) 40 H 11 Grad Road Gradient ( %, 0 to 5) 11 Il Sept Centerline Separation (feet) 30 H 11 with » (Usually 23' for 2 -lane, 38' 11 11 median » for 4 -lane, 50' for 6 -lane) H II Distl Distance from observer to the 100 11 11 nearest lane centerline (>50') 11 11 (used in calculations) Il 11 Dist2 Dist. from ROW to N LC 12 11 If *** CNEL a@ 100' (SOFT) 64.51 II !! VOL TOTAL Vehicle Volume (two -way) 28,594 11 H ALPHA Hard site =0, Soft site =0.5 0.5 11 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 540 514 <-- hard 60 CNEL soft 228 242 202 175 65 CNEL 106 80 64 38 70 CNEL 49 23 If 11 View View Angle of observer ( 180) 180 11 Il SHIELDING (adjust output by hand) Il H Woods Thickness of woodland between 0 11 H observer and road (feet) Il 11 Cover Percent view coverage between 0 11 H _ observer and road (0 -100) 11 H Rows Building rows between observer 0 ll Il and roadway (0-4). H 1111111111 111111 111111111111111 Ilfll 1111I11111111I11 Illlllllllfflllllllll11111111111111111111I 111111111 11111111 11111IIIIIl1111I11111111 I111III1111 RBF Consulting. 12- Dec -02 JN 10- 100183 Adolfo Lopez - West of Seal Beach - Existing +Project IIIIIIIIII 111111 1111! llllllllll 1111! 111111II1I Illll! 111111111111 111111111111IIIIII 11111111111I11111111I11I1 Illllllll11111111111I !111111 Illllllllll 11 Speed Vehicle Speed (mph, 0 to 100) 40 ll 11 Grad Road Gradient ( %, 0 to 5) Il 11 Sept Centerline Separation (feet) 12 ll Il with » (Usually 23' for 2 -lane, 38' 11 11 median » for 4 -lane, 50' for 8 -lane) Il Il Dist1 Distance from observer to the 100 11 fl nearest lane centerline (>50') Il fl (used in calculations) 11 Il Dist2 Dist. from ROW to N LC 5 11 II *** CNEL a@ 100' (SOFT) 52.84 11 11 VOL TOTAL Vehicle Volume (two-way) 19744 11 11 ALPHA Hard site =0, Soft site =0.5 0.5 11 DISTANCE FROM R E S U L T S DISTANCE FROM Cntriine ROW Centerline ROW 39 27 <-- hard 60 CNEL soft 35 23 12 1 55 CNEL 18 5 4 -8 70 CNEL 8 -4 11 11 11 View View Angle of observer (180) 180 11 II SHIELDING (adjust output by hand) 11 II Woods Thickness of woodland between 0 Il H observer and road (feet) 11 II Cover Percent view coverage between 0 11 H observer and road (0 -100) Il H Rows Building rows between observer 0 11 11 and roadway (0-4). ll 1111IIIIII III111 !1111 lllllllllllllll 1111111111111111 IIIIIIIIIIIIIIIllll1 11111111111 11111111111111 1111111111111111111111111111111 !1!1111 Illllllllll RBF Consulting. 12- Dec -02 JN 10 -1 00183 Seal Beach Blvd. - Golden Rain to St Andrews - Existing +Project 1111111111111111 1!111111111111111111 IIIlllllll !11111 ll11111f111111111I 1111111 1111111111Illllllllllllfllllf11 1I111111IIIIIII�flll 11!1!11 11�1llllfll l! Speed Vehicle Speed (mph, 0 to 100) 45 lI H Grad Road Gradient ( %, 0 to 6) H 11 Sept centerline Separation (feet) 42 !1 II with » (Usually 23' far 2 -lane, 38' Il 11 median » for 4 -lane, 50' for 8 -lane) 11 11 Distl Distance from observer to the 100 11 !1 nearest lane centerline (>50') If 11 (used in calculations) 11 11 Dist2 Dist. from ROW to NLC 18 ll II *** CNEL @ 100' (SOFT) 66.84 !! II VOL TOTAL Vehicle Volume (two -way) 389923 11 H ALPHA Hard site =0, Soft site =0.5 0.5 11 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW centerline ROW 1133 <-- hard 80 CNEL soft 341 343 370 333 65 CNEL 158 121 117 80 70 CNEL 73 36 !1 Il ll View View Angle of Observer (180) 180 II Il SHIELDING (adjust output by hand) 11 Il Woods Thickness of woodland between 0 !1 11 observer and road (feet) 11 11 Cover Percent view coverage between 0 ll 11 observer and road (0 -100) 11 Il Rows Building rows between observer 0 1! Il and roadway (0-4). II Illlflllll 111111 1111! 11111111I1111i1111111f111111111 lllllfllfllllllllllllllllflllfllllll1111lfllllflf 111111111 11I11111I1111111111I11111 11111111111 RB F Consulting. 12- Dec -02 J N 10- 100183 Seal Beach Blvd. - Road A to Road C - Existi n g+ Project Illlllllll 111111 Illll 11111I1lIl 11111 1111111111 Ill!!! IIIl111lllllll111 11llIIIIIIIIIl111Ii111I11I 1111 I1I1111111111111111111111111I 1111111 Iflllllllll 11 Speed Vehicle Speed (mph, 0 to 100) so H 11 Grad Road Gradient ( %, 0 to 6) II 11 Sept Centerline Separation (feet) 42 Il 11 with » (Usually 23' for 2 -lane, 38' 11 II median » for 4 -la ne, 50' for 6 -lane) 11 11 Dist1 Distance from observer to the 100 11 !1 nearest lane centerline (>50') !1 ll (used in calculations) 11 I! Dist2 Dist. from ROW to N LC 18 II 11 *** CNEL @ 100' (SOFT) 67.06 11 H VOL TOTAL Vehicle Volume (two -way) 319241 H H ALPHA Hard site -0, Soft site=0.5 0.5 1! DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 1194 <-- hard 60 CNEL soft 332 315 389 352 65 CNEL 163 126 123 86 70 CNEL 76 39 ll H ll View View Angle of Observer (180) 180 H Il SHIELDING (adjust output by hand) 11 fl II Woods Thickness of woodland between 0 11 11 observer and road (feet) 11 11 Cover Percent view coverage between 0 H 11 observer and road (0 -100) 11 Il Rows Building rows between observer 0 11 11 and roadway (0-4). II Illlllllll 111111 Illll Illlllllll 111!1 llllllllll 111111 1111111I111I 1111 111111111 1111111111111111111111111111!! 111111111111111illlll 1111111 Illllllllll RBF Consulting. 12- Dec -02 JN 10- 100183 Seal Beach Blvd. - Road C to PCH - Existing +Project 1IIIIIIIl1111111 IIIII Illlllllll Illll IIIIIIIIII 111111 11111111111 11111 11 IIIIIIIIIII�IIlllllllllllllllllll111! 11111I1�11I1i111111111I11111 11111111111 H Speed Vehicle Speed (mph, 0 to 100) 40 H H Grad Road Gradient ( %, 0 to 6) H H Sept Centerline Separation (feet) 42 H H with » (Usually 23' for 2 -lane, 38 H 11 median » for 4 -lane, 50` for B -lane) H H Distl Distance from observer to the 100 H H nearest lane centerline (>50') H H (used in calculations) H H Dist2 Dist. from ROW to NLC 18 H H *** CNEL a@ 100' (SOFT) 53.1 H H VOL TOTAL Vehicle Volume (two-way) 22,095 H 11 ALPHA Hard site =0, Soft site =0.5 0.5 H DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW centerline ROW 495 457 <-- hard 50 CNEL soft 192 155 155 119 55 CNEL 89 52 49 12 70 CNEL 41 4 H H H View View Angle of Observer (180) 180 H Il SHIELDING (adjust output by hand) H H Woods Thickness of woodland between 0 H H observer and road (feet) H H Cover Percent view coverage between 0 H 11 observer and road (0 -100) H H Rows Building rows between observer 0 H H and roadway (0-4). H lillllllll 111111 11!11 IIlllll11111111 IIIIIIIIII Illlll 11111IIIIIIII1111I111 �1111111111111II�llllll 11111111111111111 1111111�111111111111I1 1111111111! RBF Consulting. 12- Dec -02 JN 1 0- 100183 Seal Beach Blvd. - St Andrews to Westminster - Existing +Project 1I111111lI llflll 1111111111f111111lIf llllllllll 111111 IIf1111I11If1llllllflllllllllllllllllllllllll1�1111I111 lllllllllllllllllll111111111 1111111111! H Speed Vehicle Speed (mph, 0 to 100) 45 H H Grad Road Gradient ( %, 0 to 5) H H Sept Centerline Separation (feet) 42 H H with >> (Usually 23' for 2 -lane, 38' H H median » for 4 -lane, 50' for 5 -lane) H H Dist1 Distance from observer to the 100 H 11 nearest lane centerline (>50') H H (used in calculations) H H Dist2 Dist. from ROW to NLC 18 Il H *** CNEL @a 1001 (SOFT) 85.84 H H VOL TOTAL Vehicle Volume (two -way) 38,823 H H ALPHA Hard site =0, Soft site =0.5 0.5 H DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW * ***** 1133 <-- hard 50 CNEL soft 341 303 370 333 85 CNEL 158 121 117 80 70 CNEL 73 36 H 11 H View View Angle of Observer (180) 180 H H SHIELDING (adjust output by hand) H 1! H H Woods Thickness of woodland between 0 H H observer and road (feet) H H Cover Percent view coverage between 0 H 11 observer and road (0 -100) H H Rows Building rows between observer 0 H H and roadway (0-4). H Illlllllll11111111111111111 111111 1111 IIII1111111If11I1 11111111I1111lIIIIIIIIIIIIIIIIIIllll111111111111f1111 1I1111llllll�llllli11111�11! 11111111111 RBF Consulting. 12- Dec --02 JN 10- 100183 Seal Beach Blvd. - Westminster to Road A - Existing +Project 111111111 11 11111IIIIIIIIIIf11111111I1111111111 1111111 IIIIIIII1111111111E11 1111111111111111II1 1111111111111111 111111I111111111I11111111! 11111111I1I 11 Speed Vehicle Speed (mph, 0 to 100) 50 ll 11 Grad Road Gradient ( %, 0 to 5) Il 11 Sept Centerline Separation (feet) 42 11 11 with » (Usually 23' for 2 -lane, 38' !! H median » for 4 -lane, 50' for 5 -1ane) Il Il Distl Distance from observer to the 100 11 II nearest lane centerline (>50') ll II (used in calculations) 11 I! Dish Dist. from ROW to N LC 1 S 11 ll *** CN EL @ 100' (SOFT) 57.35 11 11 VOL TOTAL Vehicle Volume (two -way) 33,377 ll 11 ALPHA Hard site =0, Soft site =0.5 0.5 11 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline FLOW ****** 1279 <-- hard 54 CNEL soft 368 331 415 379 55 CNEL 171 134 132 94 70 CNEL 79 42 11 11 Il View View Angle of Observer (180) 180 II ll SHIELDING (adjust output by hand) 11 II Woods Thickness of woodland between 0 Il ll observer and road (feet) 11 11 Cover Percent view coverage between 0 Il Il observer and road (0 -100) 11 11 Rows Building rows between observer 0 11 H and roadway (0-4). 11 1111111111111111 lflfl II1lllfllf flllf llllllllll 111111 IIIII1111 11 11111111III111111fI11111111111111I111I111111111111111111111111 III 1111111 1llllflllll RBF Consulting. 12- Dec -02 JN 10 -1 00183 Westminster Avenue - Road A to Road B - Existing +Project Illlllllll 111111 11111 II1111I111 !1111 1111I1I111111111 11111111111111 1111 II11111111IIIIItl111 11I11I1111111111! 111111111111111111111 1111111 Illlll111I1 11 Speed Vehicle Speed (mph, 0 to 100) 40 II Il Grad Road Gradient ( %, 0 to 6) II 11 Sept Centerline Separation (feet) 30 II 11 with » (Usually 23' for 2 -lane, 38' II 11 median » for 4 -lane, 50' for 6-lane) 11 11 Distl Distance from observer to the 100 I! II nearest lane centerline (>50') 1! Il (used in calculations) 11 R Dist2 Dist. from ROW to NLC 12 11 11 *** CN EL @a 100' (SOFT) 64.55 Il 11 VOL TOTAL Vehicle Volume (two -way) 28,882 11 Il ALPHA Hard site =0, Soft site -0.5 0.5 1! DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 646 520 <-- hard 60 CNEL soft 229 203 204 178 65 CNEL 106 80 65 39 70 CNEL 49 23 H 11 11 View View Angle of Observer (180) 180 Il 11 SHIELDING (adjust output by hand) 11 H Woods Thickness of woodland between 0 Il Il observer and road (feet) 11 11 Cover Percent view coverage between 0 !l 11 observer and road (0 -100) II 11 Rows Building rows between observer 0 11 1I and roadway (0-4). II 1111111111 111111 111111111111111 Illll 1II11IIIII 111111 IIIlllllllllllllll11111111I11I111111111I11I 1111111111 111Illlllll�lll11111111 !111111 1I1111111i1 RBF Consulting. 12- Dec -02 JN 10 -1 00183 Westminster Avenue - Road B to Seat Beach Blvd - Existing +Project 1111111111 llllll IIIII Illlllllll !1111 IIIIIl11I1111111 1 111111 1111111111111 llllll111111I�IIIIIIIIII111l111111� lIIIII�Illlllllllllll 1111111 Illllllllll 11 Speed Vehicle Speed (mph, 0 to 100) 40 Il H Grad Road Gradient ( %, 0 to 5) ll 11 Sep 1 Centerline Separation (feet) 30 H 11 with » (Usually 23' far 2 -lane, 38' 11 H median » for 4 -lane, 50' for 6 -lane) 11 11 Distl Distance from observer to the 100 H !1 nearest lane centerline (>50') 1I H (used in calculations) H H Dish Dist. from ROW to N LC 12 H H *** CNEL a@ 100' (SOFT) 64.87 H H VOL TOTAL Vehicle Volume (two -way) 29,718 11 H ALPHA Hard site =0, .Soft site =0.5 0.5 II DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 855 539 <-- hard 60 CNEL soft 234 207 210 184 65 CNEL 108 82 57 41 70 CNEL 50 24 H !I 11 View View Angle of Observer (180) 180 11 H SHIELDING (adjust output by hand) II Il H 11 Woods Thickness of woodland between 0 H H observer and road (feet) 11 H Cover Percent view coverage between 0 11 !I observer and road (0 -100) 11 H Rows Building rows between observer 0 H II and roadway (0-4). II llllllllll llllll IIIII 1111111111 IIIII llllllllll llllll III11111111111111111111I1111��1 1111111 11111111111111111111111111111 111111III llllll Illllllllll RBF Consulting. 12- Dec -02 JN 1 0- 100183 Westminster Avenue - Seal Beach to Bolsa Chica - Existing +Project IIIIIIllllllllll 11111IIlllllllllflfl IlIIIlllll111111 IIIII111IIIIIIIII1111I 1111111If1111111I f111111II1111111111111If�111111111111 �Ifllll Iflllllllll 11 Speed Vehicle Speed (mph, 0 to 100) 55 ll 11 Grad Road Gradient ( %, 0 to 6) Il 11 Sept Centerline Separation (feet) 30 I! II with » (Usually 23' for 2 -lane, 38' 11 H median » for 4 -lane, 50' for 6 -lane) H H Dist1 Distance from observer to the 100 II 11 nearest lane centerline (>50') II II (used in calculations) If Ii Dist2 Dist. from ROW to N LC 12 1! If '�"* CNEL @ 100' (SOFT) 58.48 Il ll VOL TOTAL Vehicle Volume (two -way) 28,830 II 11 ALPHA Hard site =0, Soft site =0.5 0.5 11 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 1429 <-- hard 60 CNEL soft 394 368 460 434 65 CNEL 183 157 146 120 70 CNEL 85 59 If 11 11 View View Angle of Observer (180) 180 ll 11 SHIELDING (adjust output by hand) 11 11 Woods Thickness of woodland between 0 1! 11 observer and road (feet) H 11 cover Percent view coverage between 0 H Il observer and road (0 -100) H H Rows Building rows between observer 0 11 !! and roadway (0-4). H 1111llllll 111111 11111 f1111f111111l 111111111111111111 11I III111111111111111111111111i1If1111lllllflllllllllll lflllllllllllllll1111111111! Iflllllllll RBF consulting. 12- Dec -02 JN 10 -1 00183 Westminster Avenue - Studebaker to Road A - Existi n g+ Project lllllllfllllllll111l1lfllll 1111l11f111111111 1111111 111IIIIIIIIIIIl1111 1f11111111111f1 1111111111 111111111111 Illlllllll!llllfllllllllllll lllllllllll H Speed Vehicle Speed (mph, 0 to 100) 40 11 Il Grad . Road Gradient ( %, 0 to 6) Il Il Sept Centerline Separation (feet) 30 H ll with » (Usually 23' for 2 -lane, 38' Il 1I median >> for 4 -lane, 50' for 6 -lane) Il 1I Distl Distance from observer to the 100 11 11 nearest lane centerline (>50') 11 Il (used in calculations) Il Il Dist2 Dist. from ROW to N LC 12 Il 11 *** CNEL a@ 100' (SOFT) 64.14 ll Il VOL TOTAL Vehicle Volume (two -way) 25,271 11 11 ALPHA Hard site =0, Soft site =0.5 0.5 ll DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 587 561 < - hard 60 CNEL soft ---> 215 189 186 160 63 CNEL 100 74 59 33 70 CNEL 46 20 H Il 11 View View Angle of observer (180) 180 11 11 SHIELDING (adjust output by hand) H H Woods Thickness of woodland between 0 11 II observer and road (feet) H 11 Cover Percent view coverage between 0 Il II observer and road (0 -100) ll ll Rows Building rows between observer 0 ll 11 and roadway (0-4). H 1lilllf111111111 11!11 lllllllllf 11111 llflllllll 111111 111111II11111IIIIIlI11I 1111 111111111I1111111111111I1111 lllllll�lllllllllllll lllll�l 11111111111 RBF Consulting. 12- Dec -02 JN 10- 100183 Adolfo Lopez - West of Seal Beach - Existing 111111I1111II111 IIIII 111111��11111 111111 111111111111 1111111111111 11111111) IIIIIIIIIIl1I111 111 111 11I1111II1111111111I 1111I111111111!!Il! 1I11I111111 H Speed Vehicle Speed (mph, 0 to 100) 40 H H Grad Road Gradient ( %, 0 to 5) H H Sepl Centerline Separation (feet) 12 II H with » (Usually 23' for 2 -lane, 38' 11 H median » for 4 -lane, 50' for 6 -lane) 11 H Dist1 Distance from observer to the 100 H H nearest lane centerline (>50') 11 11 (used in calculations) H H Dist2 Dist. from ROW to N LC 6 11 11 CNEL a@ 100' (SOFT) 51,85 H H VOL TOTAL Vehicle Volume (two-way) 19389 H H ALPHA Hard site =0, Soft site =0.5 0.5 H DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 31 19 <-- hard 60 CNEL soft --a 30 18 10 -2 65 CNEL 14 2 3 -9 70 CNEL 7 -5 H H H View View Angle of observer (180) 180 H 11 SHIELDING (adjust output by hand) H ll H H Woods Thickness of woodland between 0 H H observer and road (feet) 11 H Cover Percent view coverage between 0 H 11 observer and road (0 -100) H H Rows Building rows between observer 0 H 11 and roadway (0-4). 11 Illlllllll !111!1 11111 IIIIl11111 11111 1111111111 11111! 111111111111111111111111111111111111111 11 1i1111111111I111111111111111111 111! 1111111 Illllllllll RBF Consulting. 12- Dec-02 JN 10 -1 00183 Seal Beach Blvd. - Road A to Road C - Existing IIIl11T111 111111 11111 11lI1111111111111I1111111111111 llllflllll11I11111 111111111111111IIIIIIIIf 1I111111111T I llllllTllllIIIIIIIIII 1111111 111111111II 11 Speed Vehicle Speed (mph, 0 to 100) 50 11 11 Grad Road Gradient ( %, 0 to 6) !! 11 Sept Centerline Separation (feet) 42 11 !1 with » (Usually 23' for 2 -lane, 38' 11 1! median » for 4 -lane, 50' for 6 -lane) 11 1! Distl Distance from observer to the 100 11 II nearest lane centerline (>50') If 11 (used in calculations) If !f Dist2 Dist. from ROW to NLC 18 11 CNEL @ 100' (SOFT) 66.42 ll 11 VOL TOTAL Vehicle Volume (two-way) 26,975 11 1I ALPHA Hard site =0, Soft site =0.5 0.5 l! DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 1025 <-- hard 60 CNEL soft ---a 319 282 335 299 65 CNEL 148 111 106 59 70 CNEL 69 32 ll 11 ll View View Angle of Observer (180) 180 1I H SHIELDING (adjust output by hand) 11 11 Woods Thickness of woodland between 0 ll Il observer and road (feet) !1 ll Cover Percent view coverage between 0 ll 11 observer and road (0 -100) ll Il Rows Building rows between observer 0 11 11 and roadway (0-4). 11 llllllllll 611161 Illll ITlfllllll Tllll llllllll11111111 IIII111IIII111IIf11 11111 f1111111111111�1111111111111111 llllllllllll�llllll�l 111!111 IIIIIIIIIII RBF Consulting. 12- Dec -02 JN 10 -1 00183 Seal Beach Blvd. - Golden Rain to St Andrews - Existing 1111111111 111111 Illll llllllll !I Illll 1111111111111111 Il11 1111 111111111 �IIIIIIIIl1I1111111111111111111 !111111 IIIIIIIIIIIIIIIIIIIII l �lllll 11111111111 11 Speed Vehicle Speed (mph, 0 to 100) 45 11 H Grad Road Gradient ( %, 0 to 8) H H Sept Centerline Separation (feet) 42 11 H with » (Usually 23' for 2 -lane, 38' II 1! median » for 4 -lane, 50' for 6-lane) 11 ll Distl Distance from observer to the 100 11 H nearest lane centerline (>50') 11 H (used in calculations) 11 H Dist2 Dist. from ROW to NLC 18 11 H * ** CNEL @a i 00' (SOFT) 68.23 H H VOL TOTAL Vehicle Volume (two -way) 339790 H H ALPHA Hard site =0, Soft site =0.5 0.5 II DISTANCE FROM R E S U L T S DISTANCE FROM Cntriine ROW Centerline ROW * * # * ** 979 < -- hard 60 CNEL soft 310 273 322 284 65 CNEL 144 107 102 55 70 CNEL 67 30 H 11 Il View View Angie of Observer (180) 180 11 ll SHIELDING (adjust output by hand) H ll...�.....,.......�.�... Il I! Woods Thickness of woodland between 0 H 1I observer and road (feet) 11 H Cover Percent view coverage between 0 11 H observer and road (0 -100) 11 H Rows Building rows between observer 0 11 11 and roadway (0-4). H Illlllllll 111111 Illll IIIIIIIIII II111111111I11I 111111 Illllllllll�l1 1111111III11I11111111I1111llllllllllllllf IIIIIIIIIIIIIIIIIIIII 1111111 Illllllllll RBF Consulting. 12- Dec -02 JN 1 0 -1 001 83 Westminster Avenue - Seal Beach to Bolsa Chica - Existing Illlllllll 11I1i1 IIIII Illlllllll 11111 llllllllll 111111 llllll111111111111111111 11111111111111111111111lllllll! 1111111111111111111111111111 11111111111 11 Speed Vehicle Speed (mph, 0 to 100) 55 11 II Grad Road Gradient ( %, 0 to 5) 11 11 Sep1 Centerline Separation (feet) 30 11 H with » (Usually 23' for 2 -lane, 38' Il H median » for 4 -lane, 50' for 5 -lane) Il H Distl Distance from observer to the 100 Il H nearest lane centerline (>50') II 11 (used in calculations) H ll Dist2 Dist. from ROW to NLC 12 Il H CN EL @a 100' (SOFT) 57.31 11 11 VOL TOTAL Vehicle Volume (two -way) 249137 11 H ALPHA Hard site =0, Soft site =0.5 0.5 11 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW centerline ROW 1193 <-- hard 50 CNEL soft 350 324 385 359 55 CNEL 163 137 122 98 70 CNEL 75 49 Il H 11 View View Angle of observer (180) 180 H H SHIELDING (adjust output by hand) H H Woods Thickness of woodland between 0 Il H observer and road (feet) H H Cover Percent view coverage between 0 Il 11 observer and road (0 -100) H H Rows Building rows between observer 0 H II and roadway (0-4). 11 IIIIIIIIII 111111 11111111111 i11! 111111111111111111111 111111 111111111111111 Illlllllllllllllllllllllllllllllll IIIIII111111111111111 1111111 11111111111 RBF Consulting. 12- Dec -02 JN 10 -1 00183 Westminster Avenue - Road B to Seal Beach Blvd - Existing 1f1111f111111111 11111llllll�ll111111111111f111111111 IIIIIIIl1�111111�11I1111111111 11111111111111111 11111111Illl lllllllllll1111111111111 1111!111111 H Speed Vehicle Speed (mph, 0 to 100) 40 11 H Grad Road Gradient ( %, 0 to 0) 11 11 Sept Centerline Separation (feet) 30 11 II with » (Usually 23' for 2 -lane, 38' H 11 median » for 4 -lane, 54' for 6-lane) H H Distl Distance from observer to the 100 ll H nearest lane centerline (>50') 11 H (used in calculations) 11 ll Dist2 Dist. from ROW to NLD 12 ll 11 *** CNEL a@ 100' (SOFT) 63.8 11 11 VOL TOTAL Vehicle Volume (two -way) 23,204 H 11 ALPHA Hard site =0, Soft site =0.5 4.5 H DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 519 493 <-- hard 60 CNEL soft 198 172 164 138 85 CNEL 92 68 52 25 70 CNEL 43 17 11 11 ll View View Angle of Observer (184) 180 11 11 SHIELDING (adjust output by hand) H 11 Woods Thickness of woodland between 0 ll Il observer and road (feet) 11 H Cover Percent view coverage between 0 H H observer and road (4 -140) 11 !1 Rows Building rows between observer 0 Il !1 and roadway (0-4). H flllllllll 111111 111H llllllllll 1111! Illlflllll 1111!! 1111111 111111f111lllllllllllllfll�lllllllllllllflllllll 11111111I111111f111II IIIIIII 11111111111 RBF Consulting. 12- Dec -02 JN 10 -1 00183 Seal Beach Blvd. - St Andrews to Westminster - Existing flllllllll 111111 11111 Illlflflll 11111 Illlllllfl 111111 Illlf111111111111111111111111111111111f11111111111 11111 Illlfllllllllllllllll 1111111 Illlllfllll !l Speed Vehicle Speed (mph, 0 to 100) 45 11 H Grad Road Gradient ( %, 0 to 6) 11 H Sept Centerline Separation (feet) 42 11 11 with » (Usually 23' far 2 -lane, 38' 11 Il median » for 4 -lane, 50' for 6 -lane) !I Il Dist1 Distance from observer to the 100 ll II nearest lane centerline (>50') 11 11 (used in calculations) 1! ll D ist2 Dist. from ROW to N LC 18 11 ll *** CNEL a@ 100' (SOFT) 66.23 11 II VOL TOTAL Vehicle Volume (two -way) 33,790 Il 11 ALPHA Hard site =0, Soft site =0.5 0.5 11 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW centerline ROW 979 <-- hard 60 CN EL soft ---> 310 273 322 284 65 CNEL 144 107 102 65 70 C N E L 67 30 H 11 ll View View Angle of observer (180) 180 11 H SHIELDING (adjust output by hand) ll 11 Woods Thickness of woodland between 0 f1 11 observer and road (feet) H H Cover Percent view coverage between 0 11 ll observer and road (0 -100) Il H Rows Building rows between observer 0 ll Il and roadway (0-4). II Illlllllll 111111 11111111111flll 11111 IIIIIIIIIf 111111 111111111111111111 111111111111111111111 1111111111111111 llllllllllllllfllllll 1111111 11111111111 RBF Consulting. 12- Dec -02 JN 10- 100183 Seal Beach Blvd. - Road C to PCH - Existing 1111111111111111 IIIII 111I111I11 IIIII llllllllll 111111 11lIIIIIIIIIl1111111I1 11111111111 1IIIIIIIIIIIIIllll111111 11111111111111111111111111 (llllllllll II Speed Vehicle Speed (mph, 0 to 100) 40 11 H Grad Road Gradient ( %, 0 to 6) II H Sept centerline Separation (feet) 42 H 11 with » (Usually 23' for 2 -lane, 38' II Il median » for 4 -lane, 50' for 6 -lane) 11 H Distl Distance from observer to the 100 11 11 nearest lane centerline (>50') 11 H (used in calculations) H 11 Dist2 Dist. from ROW to NLC 18 H 11 *** CNEL @ 100' (SOFT) 62.81 11 11 VOL TOTAL Vehicle Volume (two -way) 20,666 11 H ALPHA Hard site =0, Soft site =0.5 0.5 11 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 463 425 <-- hard 60 CNEL soft 183 146 146 109 65 CNEL 85 48 46 9 70 CNEL 40 2 li H II View View Angle of Observer (180) 180 11 H SHIELDING (adjust output by hand) H H Woods Thickness of woodland between 0 H H observer and road (feet) H Il cover Percent view coverage between 0 H II observer and road (0 -100) H H Rows Building rows between observer 0 11 11 and roadway (0-4). H 1111111111 111111 Illll 1111111111 IIIII llllllllll 111111 Illlllllllllllllllllllllllllllllllll 11111II1111111I1111 lllllllllllllllllllll 1111!11 IIIIIIIIIII RBF Consulting. 12- Dec -02 JN 10- 100183 Seal Beach Blvd. -Westminster to Road A- Existing 111111111111I1�1IIIIIIIIIIIIIIIIIIIIIII �Illlllllllllllllllllllllllll111�I1111 111111111i1111111111�111111 1I11111111I11lllllllll111111111 lIIIIllllll H Speed Vehicle Speed (mph, 0 to 100) so H H Grad Road Gradient ( %, 0 to 6) H H Sept centerline Separation (feet) 42 H 11 with » (Usually 23' for 2 -lane, 38' H H median » for 4 -lane, 50' for 6 -1ane) H H Distl Distance from observer to the 100 H H nearest lane centerline (>50') H Il (used in calculations) H H Dist2 Dist. from ROW to NLC 18 H H *** CNEL @a 100' (SOFT) 66.42 H H VOL TOTAL Vehicle Volume (two -way) 26,975 11 H ALPHA Hard site =0, Soft site =0.5 0.5 11 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW ** * * ** 1 025 <-- hard 60 CNEL soft --a 319 282 336 299 65 CNEL 148 '171 105 69 70 CNEL 69 32 H 11 H View View Angle of observer (180) 180 H Il SHIELDING (adjust output by hand) H H Woods Thickness of woodland between 0 11 H observer and road (feet) 11 H cover Percent view coverage between 0 H H observer and road (0 -100) H H Rows Building rows between observer 0 H 11 and roadway (0-4). 11 IIIIIl1I11111I11 lllll 1111111111111111111111111111111 Illllllllllllllllll 111111111111111111111111111111111111 Illllllllllllllllllll IIIIIII IIIIIIIIIII RBF Consulting. 12- Dec -02 JN 10 -1 00183 Westminster Avenue - Road A to Road B - Existing Illlllllll 111111 11111 111I1111111111111�111111111111! 1 111�IIII111111111I11IlIlIlI111111111 11!!11111111111111 Illllilllllllllllllll !11111! 1111IIIIIl1 H Speed Vehicle Speed (mph, 0 to 100) 40 H H Grad Road Gradient ( %, 0 to 6) H 11 Sept Centerline Separation (feet) 30 H H with » (Usually 23' for 2 -lane, 38' H H median » for 4 -lane, 50' for 6 -lane) 11 H Dist1 Distance from observer to the 100 H H nearest lane centerline (>50') H H (used in calculations) 11 H Dist2 Dist. from ROW to NLC 12 H H *** CNEL @ 100' (SOFT) 63.6 H H VOL TOTAL Vehicle Volume (two -way) 23,204 H H ALPHA Hard site =0, Soft site =0.5 0.5 Il DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 519 493 <-- hard 60 CNEL soft 198 172 164 138 65 CNEL 92 66 52 26 70 CNEL 43 17 11 H H View View Angle of Observer (180) 180 H H SHIELDING (adjust output by hand) H 11 H H Woods Thickness of woodland between 0 H H observer and road (feet) H H Cover Percent view coverage between 0 H 11 observer and road (0 -100) H H Rows Building rows between observer 0 H 11 and roadway (0-4). 11 1111Illlll Illlll Illll IIIIIIIIII 11111111IIIIII111111I IIIIIIIIIl111111I 111111111111111111111111Illlllllllllll lllllllllllllllllllll lllllfl lllllllllll RBF Consulting. 12- Dec -02 JN 10- 100183 Westminster Avenue - Studebaker to Road A - Existing 1111111111111111 11 111 11111111111l1I11111111111111I11 1111111 1111111 �IIIIIIIIIIIIIIIIll1I111111 1111111111111111111111111111I1111111111111 IIIIIIIIIII ll Speed Vehicle Speed (mph, 0 to 100) 40 11 ll Grad Road Gradient ( %, 0 to 6) 1! 11 Sept centerline Separation (feet) 30 ll ll with » (Usually 23' for 2 -lane, 38' 11 11 median » for 4 -lane, 50' for 6 -lane) 11 11 Distl Distance from observer to the 100 11 H nearest lane centerline (>50') 11 !1 (used in calculations) 11 H Dist2 Dist. from ROW to NLC 12 Il H "k** C N EL @a 100' (SOFT) 53.57 11 H VOL TOTAL Vehicle Volume (two -way) 239066 11 11 ALPHA Hard site =0, Soft site =0.5 0.5 11 DISTANCE FROM R E S U L T S DISTANCE FROM Cntrline ROW Centerline ROW 515 490 <-- heard 54 CNEL soft 197 171 153 137 55 CNEL 92 55 52 26 70 CNEL 42 16 H 11 11 View View Angle of Observer (180) 180 H 11 SHIELDING (adjust output by hand) H 11 Woods Thickness of woodland between 0 11 Il observer and road (feet) H H cover Percent view coverage between 0 11 H observer and road (0 -104) 11 H Rows Building rows between observer 0 H Il and roadway (0-4). H 1111I111I1 Illfll IIfII lfllllllll 11111 1111111111111111 llllllllllllllllllllllllflll�llllllllllllllllllll 111111 Illllllllll1111I1111! 1111111 11111�1IIII RBF consulting. 12- Dec -02 JN 10- 100183 BOEING SPACE CENTER ROADWAY SEGMENTS EXISTING CONDITONS Segment Westminster Avenue Studebaker Road to Road A Road A to Road B ADT 237088 237204 Centerline Se aration (CLS) 30 30 Speed L imit 40 40 NLC to ROW* 12 12 Road B to Seal Beach Blvd 30 40 12 Seal Beach Blvd to Bolsa Chica Rd 24,137 30 55 12 Adolfo Lo ez Drive 26,271 30 40 12 West of Seal Beach Blvd. 11389 12 40 5 Seal Beach Boulevard 30 40 12 Golden Rain Road to Saint 339790 42 45 18 Andrews Saint Andrews to Westminster 1,744 42 45 18 Westminster to Road A 42 50 18 Road A to Road C 26,975 42 50 18 Road C to PC H 20,666 42 40 18 BOEING SPACE CENTER ROADWAY SEGMENTS EXISTING+ PROJECT Segment ADT Centerline Speed NLC to Se aration (CLS) Limit ROW* Westminster Avenue Studebaker Road .to Road A 26,271 30 40 12 Road A to Road B 28,882 30 40 12 Road B to Seal Beach Blvd 30 40 12 Seal Beach Blvd to Bolsa Chica Rd 28,830 30 55 12 Adolfo Lopez Drive West of Seal Beach Blvd. 1,744 12 40 5 Seal Beach Boulevard Golden Rain Road to Saint 382923 42 45 18 Andrews Saint Andrews to Westminster 42 45 18 Westminster to Road A 42 50 18 Road A to Road C 31,241 42 50 18 Road C to PC H 22,096 42 40 18 BOEING SPACE CENTER ROADWAY SEGMENTS EXISTING +FUTURE GROWTH +RELATED PROJECTS Segment ADT Centerline Speed NLC to Separation (CLS) Limit ROW* Westminster Avenue Studebaker Road to Road A 25,389 30 40 12 Road A to Road B 25,538 30 40 12 Road B to Seal Beach Blvd 30 40 12 Seal Beach Blvd to Bolsa Chica Rd 26,808 30 55 12 Adolfo Lopez Drive West of Seal Beach Blvd. 1,500 12 40 5 Seal Beach Boulevard. Golden Rain Road to Saint 35,080 42 45 18 Andrews Saint Andrews to Westminster 42 45 18 Westminster to Road A 42 50 18 Road A to Road C 30,554 42 50 18 Road C to PCH 237401 42 40 18 BOEING SPACE CENTER ROADWAY SEGMENTS EXISTING +FUTURE GROWTH +RELATED PROJECTS +BOEING PROJECT Segment ADT Centerline Separation (CLS) Speed Limit NLC to ROW* Westminster Avenue Studebaker Road to Road A 28,594 30 40 12 Road A to Road B 319216 30 40 12 Road B to Seal Beach Blvd 30 40 12 Seal Beach Blvd to Bolsa Chica Rd 31,391 30 55 12 Adolfo Lopez Drive West of Seal Beach Blvd. 118R 12 40 5 Seal Beach Boulevard Golden Rain Road to Saint Andrews 433213 42 45 18 Saint Andrews to Westminster 42 45 18 Westminster to Road A 42 50 18 Road A to Road C 34,820 42 50 18 Road C to PCH 24,831 42 40 18 15.5 Biological Technical Report fi F m BIOLOGICAL TECHNICAL REPORT BOEING SPACE & COMMUNICATIONS GROUP SPECIFIC PLAN SEAL BEACH, CALIFORNIA Prepared for: Boeing Realty Corporation 3760 Kilroy Airport Way Suite 500 Long Beach, California 90806 Prepared by: Glenn Lukos Associates 23712 Birtcher Drive Lake Forest, California 92630 -1782 Project Biologists Jeff Ahrens David Moskowitz Regulatory Specialist/Soil Scientist Sara Young Senior Biologist Tony Bomkamp July 2002 0 i J TABLE OF CONTENTS Section Page PROJECTSUMMARY .............. r. rr....• w....►..... rra,.. r.• ►.....w..,..a....a.rr..r...a..r 1 110 INTRODUCTION ............. a.................. a.,.....►.,,........ .......................:....... 3 2.0 METHODS. a..... a......... r .......................... r. r................. .a..,..,...........,...,....... 3 2.1 Literature Review ................... rr........... ar...... ,.........a.. «...,...,.,....... 3 2.2 Field Reconnaissance ......................... a...... a ..............,................ 3 3.0 REGULATORY REQUIREMENTS............,...w.. .......a,,......,a....a........ 5 3.1 Regulatory Agencies..■ r.. r.......• r. rr...• w.• a,. a..... a...,..a...r......a,.,r....r..• 6 4.0 FLORAL AND FAUNAL SUR' KEYS ............. a,... .....a...w.............a......, 8 4.1 Evaluation of Occurrences Identif ed in CNDDBw,.,...r.,r.,,a,r 8 4.2 Floral and Faunal Survey Results .............................. 10 4.3 Wildlife Movement Corridors..... r...,. a............r....r . ar......... 16 5.0 JURISDICTIONAL RESOURCESw .............. wrr■ w.....,..a.a...rr.wr..r...r. +.• 16 5.1 Non -Tidal Artif cial Drainage Ditches..,. ....a.......a..,,.r............ 16 5.2 Wetland Functions Associated with the Drainage Ditches.. 18 53 Coordination with the Regulatory Agencies ............. a a.... 21 6.0 IMPACTS ...... w..... r. a.. r.. a... rw■..■........ .r.ar■...a0000a..w,r.w. ■...r. ■a 22 6.1 Impacts to Biological Resources.......... a .... a 0000 00 . .......... 22 6.2 Impacts to Jurisdictional Resources ............................ 22 7.0 MITIGATION ......■ r■. a..•■■ a....,, a•...... a 23 ..a.a......,.......a■..ara,..■0 7,1 Mitigation for Impacts to Biological Resources............, , . 23 7.2 Mitigation for Impacts to Jurisdictional Resources..,..,... 24 8,0 CONCLUSIONS. r ........................... ...........,................... 24 8.1 Biological Resources.. a a ...................... „.... a 24 .. . ........... 8,2 Jurisdictional Resources.........., a........ a..............,...,.. 24 83 Environmentally Sensitive Habitat Areas.................,... 25 i t 3 a LIST OF TABLES Tables 1 Summary of Vegetation Associations.... r..►......... .,.r..r.........rr..........,.. 13 2 Raptor Survey Conditions....... ■ . r . r r ■ • ■ r .. • •.. •.... r r. • •. r .......... r ■ .... 15 3 Raptor Abundance observed t]nsite... r r ..... , r ................ .... , r.... 16 4 Recorded Raptor Behaviors Onsite........... ........ ............................... 15 5 Summary of Site Visits Focused on Hydrology of Drainage hitches..... r ........................ 18 LIST OF EXHIBITS Exhibit 1 Regional Map 2 Vicinity Map 3 Vegetation Map 4 Jurisdictional Delineation Map 5 Site Photographs h U.S. Army Corps of Engineers Jurisdictional Findings Letter 7 Cross Section of Flood - Control and Water Quality Features Associated with Drainage hitches A and B ll PROJECT SUMMARY Introduction Biological surveys were conducted by Glenn Lukos Associates, Inc. (GLA) within the 107 - acre study area from May 2001 to May 2002. The study area is located on the Boeing Space & Communications Group headquarters property in the City of Seal Beach, California [Exhibit I]. The study area included undeveloped portions of the Boeing property. Field Sure s Field surveys included vegetation mapping of the entire study area, a focused survey for the southern tarplant (Centromadia parryi ssp. australis, FAC) and other special- status plant species, and a focused raptor survey. observations of all plant and wildlife species were noted. Existing Conditions The 107 -acre project site is bounded by Westminster Avenue to the north, Seal Beach Boulevard to the east and southeast, Adolfo Lopez Drive to the south, and the Los Alamitos Flood Control Channel and Retarding Basin to the west. The project site is depicted on the U.S. Geological Survey (USGS) topographic maps Los Alamitos, California [dated 1964 and photorevised in 1981 ] and Seal Beach, California [dated 1965 and photorevised in 1981] [Exhibit 2]. The majority of the property has been developed with buildings and facilities that support the on -going operations of the Boeing Space & Communications Group headquarters. Currently Boeing employs approximately 2,500 people at this site. The site was historically part of the Los Alamitos Ranch. The current facility was initially constructed in 1956 and occupies approximately 62 acres in the eastern portion of the site. The remaining 45 acres on the site are located within a vacant field traversed by three manmade ditches that convey runoff from the facility and surrounding parking lots to the Los Alamitos Retarding Basin. The field and ditches are maintained on a regular basis for fire control, weed abatement, and drainage purposes. The site has existed in its current condition since construction of the facility in 1966 by North American Aviation, Inc. Vegetation Associations The 52 -acre eastern portion of the site consists of facility infrastructure and limited ornamental vegetation used in landscaping. The 45 -acre vacant portion consists of a regularly disked field traversed by three drainage ditches. Small areas of the following vegetation communities occur within the field and drainage ditches: riparian herb, emergent wetland vegetation, ruderal vegetation, and ornamental vegetation. Sensitive Biological Resources The project site contains two special- status plant species: southern tarplant (Centromadia i parryi ssp. australis - CNPS List 1 B) and woolly sea -blite (Suaeda taxifolia - CNPS List 4). There are no sensitive wildlife species present within the study area. Raptors observed on or adjacent to the project site included the red - tailed hawk (ButeoJamaicensis), American kestrel (Falco sparverius), and turkey vulture (Cathartes aura). Foraging behaviors observed at the site were limited to circling above the site, except for one American kestrel that successfully captured an item of prey in the adjacent Los Alamitos retarding basin, and carried the prey item to a telephone pole onsite where it was consumed. IMacts The project would result in impacts to southern tarplant and woolly sea- blite. Impacts to 385 individuals of southern tarplant are considered adverse but not significant before mitigation. Impacts to 12 individuals of woolly sea -blite are not considered adverse or significant. Grading for the project would impact Drainage Ditch C, which is subject to CDFG jurisdiction with very limited aquatic function. A total of 0.11 acre of CDFG jurisdiction would be impacted and this impact would not be considered significant but would be considered adverse prior to project mitigation. Drainage Ditches A and B are being preserved as part of the project and will be incorporated into flood control and water quality features designed for the project. No direct impacts would occur to the artificial Drainage Ditches and an evaluation of potential indirect impacts indicates that there would be no measurable effects on the ditches as a result of the flood control or water quality features. MLtligafion Adverse impacts to southern tarplant will be mitigated through a combination of onsite and offsite translocation. With mitigation there would be no adverse impacts to southern tarplant associated with the project. Impacts to 0.11 acre of CDFG jurisdiction associated with Drainage Ditch C would be mitigated by creation of a minimum of 0.11 acre of wetland and/or riparian habitat on terraces to be created adjacent to Drainages A and B. with mitigation, impacts to CDFG jurisdiction would be fully mitigated and would not be considered adverse. 110 INTRODUCTION General and focused biological surveys of the Boeing Space & Communications Group Specific Plan study area were conducted by Glenn Lukos Associates, Inc. GLA between i i May 2001 and May 2002. The 107 -acre project site is located on the Boeing Space & Communications Group headquarters property in the City of Seal Beach, California [Exhibit 1 ]. The site is composed of a 52 -acre developed area and a 45 -acre vacant area. The 45 -acre site is maintained on a regular basis for fire control and weed abatement purposes. Three manmade drainage ditches that convey runoff from the facility and surrounding parking lots are oriented from east to west within the 45 -acre area. Limited areas of vegetated habitat occur in the vacant portion including riparian herb, emergent vegetation, ruderal, and ornamental vegetation. 2.0 METHODS Data regarding biological resources for the project site was obtained through literature review and field investigations. Focused surveys for raptor usage were conducted monthly from June 2001 to April 2002. Focused surveys for southern tarplant (Centromedia parryi ssp.australis, FACE were conducted on July 26, 2001 and May 21, 2002. General botanical and wildlife surveys were conducted on these dates as well as during the course of other focused surveys. 2.1 Literature Review Sensitive biological resources present, or potentially present, were identified through a literature review using the California Natural Diversity Data Base (CNDDB) (2001) and the California Native Plant Society (Skinner and Pavlik, 1994). The CNDDB review was conducted for the U.S. Geological Survey (USGS) topographic maps Los Alamitos, California [dated 1964 and photorevised in 1981 ] and Seal Beach, California [dated 1965 and photorevised in 198 1 ]. Sensitive species reported in the project vicinity were noted and the project site was evaluated for the potential to support such species. 2.2 Field Reconnaissance The field study included focused surveys as well as general wildlife and botanical surveys. Focused surveys were conducted for the following species: (1) raptors and (2) the southern tatplant (Centromedia parryi ssp.australis) and woolly sea -blite (Suaeda taxifolia). Observations of all plant and wildlife species were noted. 2.11 Flora All plant species encountered during field surveys were identified and recorded following the guidelines adopted by CLAPS and CDFG, described by Nelson (1994). Scientific nomenclature and common names used in this report follow Hickman (1993). When not available in Hickman, common names are taken from Roberts (1997). 2.2.2 Fauna Wildlife species detected during field surveys by sight, cads, tracks, scat, or other signs were recorded. In addition to species actually observed, expected wildlife usage of the site was determined according to known habitat preferences of regional wildlife species and knowledge of their relative distributions in the area. Scientific nomenclature and common names for vertebrate species referred to in this report follow Stebbins (1985) for amphibians and reptiles, Ingles (1965) for mammals and Peterson (1990) for birds. 2.23 Focused raptor Survey Monthly raptor surveys were conducted between June 2001 and April 2002 for the purpose of evaluating potential use of the site by foraging raptors. OLA biologist Jeff Ahrens conducted raptor surveys of the site on June 7, June 13, July 25, September 4, November 2, and December 11, 2001 and also January 17, February 19, March 15, and April 18, 2002. The purpose of the surveys was to evaluate the site for raptor usage including foraging activity. Observations were made throughout the proposed development area. Each survey lasted approximately three to four hours in duration. Survey conditions were conducive to observing raptors. A summary of the conditions recorded during these site visits is presented in Table 2 in the Results section. Raptor surveys focused on raptor foraging behaviors. Raptor foraging may include the following activities: circling, hovering, perching, attempt, and kill. Each behavior is defined below. ■ Attempt - Pursuing a prey item without success. ■ Circling - Circling over an area while scanning the surface below for prey. ■ Hovering/Kiting - Hovering or kiting in mid -air while scanning the surface below for prey. This behavior is most often performed by American kestrels and white - tailed kites. ■ Kill - The action or process of chasing, capturing, and killing a selected prey item. ■ Perching - This behavior is performed by all raptor species. Most raptors will utilize telephone poles and wires, tall structures and fence posts as elevated lookout platforms. El 2.2.4 Vegetation Mapping Vegetation associations were mapped in the field directly onto a 100 -scale base topographic map of the study area. Vegetation associations were mapped based upon descriptions provided by the Orange County Habitat Classification System (Bramlet and Gray, 1992) and Holland (1986) with, as appropriate, modifications to more accurately characterize site conditions. Vegetation mapping was performed on May 1 and June 11, 2001 by David Moskovitz. 2,23 Sensitive Plant Surveys A focused survey for the southern tarplant (Centromadia parryi ssp.australis, FAC) was conducted on July 25, 2001 by David Moskovitz and on May 21, 2002 by Tony Bomkamp. 2.2.6 Jurisdictional Delineation An initial jurisdictional delineation of the site was conducted on May 1 and May 2, 2001 to determine the extent of: (1) U.S. Army Corps of Engineers (Corps) jurisdiction pursuant to Section 404 of the Clean Water Act and Section 10 of the Rivers and Harbors Act of 1899; (2) California Department of Fish and Game (CDFG) jurisdiction pursuant to Section 1603 of the California Fish and Game Code; (3) Regional Water Quality Control Board jurisdiction pursuant to Section 401 of the Clean Water Act; and (4) California Coastal Commission jurisdiction pursuant to the California Coastal Act. Additional analysis of the drainage ditches was performed on April 21 and May 1, 2002, with a primary focus on establishing presence /absence of wetland hydrology within the ditches. wetland hydrology requires that an area be continuously inundated or saturated close to the surface (within the upper 12 inches) for a period of at least five P ercent of the growing season. The growing season in coastal southern California is effectively 365 days long, five percent of which is approximately 18 days. In all cases hydrology data within the ditches was collected within 18 days of a significant rainfall event. The results of this hydrology evaluation are summarized in Table 5 within the results section below. 10 REGULATORY REQUIREMENTS Where jurisdictional waters are present, impacts to such waters are regulated by federal, state, and local agencies, including the Corps, CDFG, Regional water Quality Control Board (RWQCB), and the City of Seal Beach pursuant to the California Environmental Quality Act (CEQA). Additionally, waters within the Coastal ,Zone are regulated by the California Coastal Commission. Prior to impacting such waters, it will be necessary to obtain the appropriate authorizations from the above - mentioned agencies. 3.1 RegulatoEy Agencies 3,1,1 U.S. Army Corps of Engineers Pursuant to Section 404 of the Clean Water Act, the Corps regulates the discharge of dredged and/or fill material into waters of the United States. The term "waters of the United States" is defined at 33 CFR Part 328 and includes (1) all navigable waters (including all waters subject to the ebb and flow of the tide), (2) all interstate waters and wetlands, (3) all other waters such as intrastate lakes, revers, streams (including intermittent streams), mudflats, sandflats, wetlands, sloughs, prairie potholes, wet meadows, playa lakes, or natural ponds, the use, degradation or destruction of which could affect interstate or foreign commerce, (4) all impoundments of waters mentioned above, (S) all tributaries to waters mentioned above, (6) the territorial seas, and (7) all wetlands adjacent to waters mentioned above'. Wetlands are defined at 33 CFR 328.3(b) as "those areas that are inundated or saturated by surface or ground water at a frequency and duration sufficient to support ... a prevalence of vegetation typically adapted for life in saturated soil conditions." Pursuant to Section 10 of the Rivers and Harbors Act of 1899, Corps jurisdiction over tidal waters of the Pacific Ocean extends to the line on the shore reached by the mean of the higher high waters (MHHW). 2 The MHHW reaches an elevation of 2.5 mean sea level at the San Gabriel River Mouth. 3.1.2 Regional Water Quality Control Board Waters subject to the provisions of Section 404 of the Clean Water Act will also require Water Quality Certification from the RWQCB pursuant to Section 401 of the Clean Water Act. Waters that do not fall under the jurisdiction of the RWQCB pursuant to Section 401 of the Clean Water Act, may require authorization through application for waste discharge requirements (WDRs) or through waiver of WDRs pursuant to the Porter- Cologne Water Quality Control Act (California Water Code, Division 7).3 On January 9, 2001 the Supreme Court of the United States issued a ruling on Solid Waste Agency of Northern Cook County v. United States Army Corps of Engineers, et. al. (SWANCC). This ruling has been generally interpreted to say that isolated, intrastate waters are not subject to the provision of Section 444(a) of the Clean Water Act. Corps of Engineers, Los Angeles Distract. November 29, 1972. Public Notice Relative to Navigable Waters Within the Los Angeles District. 3 Subsequent to the SWANCC decision, the Chief Counsel for the State Water Resources Control Board issued a memorandum addressing the effects of the SWANCC decision on the Section 401 Water Quality Certification Program. The memorandum acknowledged that isolated waters not subject to Section 404 of 1 the Clean Water Act would also not require 401 certification; however, the same waters were and would remain subject to the provisions of the State Porter - Cologne Water Quality Control Act. 313 I.S. Fish and Wildlife Service Pursuant to Section 7 of the federal Endangered Species Act (ESA), any federal agency undertaking a federal action (including issuance of permits) which may affect a species listed as threatened or endangered under the ESA must consult with USFW S. Pursuant to Section 9 of the ESA, the "take" of a species listed as threatened or endangered is prohibited. 3.1.4 California Department of Fish and Game Pursuant to Division 2, Chapter 6, Sections 1 600 -1 603 of the California Fish and Game Code, the CDFG regulates all diversions, obstructions, or changes to the natural flow or bed, channel, or bank of any river, stream, or lake that supports fish or wildlife. CDFG defines a "stream" (including creeks and rivers) as "a body of water that flows at least periodically or intermittently through a bed or channel having banks and supports fish or other aquatic life. This includes watercourses having surface or subsurface flow that supports or has supported riparian vegetation." Thus, CDFG jurisdictional limits closely mirror those of the Corps. Exceptions are CDFG's exclusion of wetlands which are not associated with a river, stream, or lake, the addition of artificial stock ponds and irrigation ditches constructed on uplands, and the addition of riparian habitat supported by a river, stream, or lake regardless of the riparian area's federal wetland status. 3.1.5 California Coastal Commission The California Coastal Act (California Public Resources Code Division 20, Section 30240) restricts land uses within or adjacent to environmentally sensitive habitat areas (ESHAs). The Coastal Act Section 30107.5 defines an ESHA as: ,..any area in which plant or animal life or their habitats are either rare or especially valuable because of their special nature or role in an ecosystem and which could be easily disturbed or degraded by human activities and developments. Included within this definition are wetlands, estuaries, streams, riparian habitats, lakes, and portions of open coastal waters that meet the rare or valuable habitat criteria. The California Coastal Commission (CCC) regulates the diking, filling, or dredging of wetlands within the coastal zone. The Coastal Act Section 30121 defines "wetlands" as land "which may be covered periodically or permanently with shallow water." The CCC Statewide Interpretive Guidelines (adopted in 198 1) state that hydric soils and hydrophytic vegetation "are useful indicators of wetland conditions, but the presence or absence of hydric soils and/or hydrophytes alone are not necessarily determinative when the Commission identifies wetlands under the ' 1 Coastal Act. In the past, the Commission has considered all relevant information in making such determinations and relied upon the advice and judgment of experts before reaching its own independent conclusion as to whether a particular area will be considered wetland under the Coastal Act. The Commission intends to continue to follow this policy." 4.0 FLORAL AND FAUNAL SURVEYS 41 Evaluation of occurrences Identified in CNDDB 41A Sensitive Habitats The following sensitive habitats and associated species were identified in the CNDDB as occurring in the vicinity of the project site. 41.11 Dune and Beach Habitats (Southern Dune Scrub and Southern Foredunes) Species associated with these habitat types include: sandy beach tiger beetle (Cicindela hirticollis gravida), tiger beetle (Cicindela senilis frosti), tiger beetle (Cincindela gabbii), Dorothy's El Segundo dune weevil (Trigonscuta dorothea dorothea), western snowy plover (Charadrius alexandrinus nivosus), California least tern (Sterna antillarum browni), and coast woolly -heads (Nemacaulis denudata var denudata). Southern dine scrub or other types of dune or beach habitat do not occur on the site and none of the dune - associated species mentioned above could occur on the site due to a lack of suitable habitat. 4.1.1.2 Wetlands or Saltmarsh (Southern Coastal Saltmarsh) Species associated with these habitat types include: Ventura marsh milk -vetch (Astragalus pycnostachyus var. lanosissimus), Coulter's goldfields (Lasthenia glabrata ssp, coulteri), saltmarsh skipper (Panoquina errans), California brackishwater snail (Tryonia imitator), Belding's savannah sparrow (Passerculus sandwichensis beldingi), salt spring checkerbloom (Sidalcea neomexicana), saltmarsh bird's -beak (Cordylanthus maritimus ssp. maritimus), light- footed clapper rail (Rallus longirostris leuipes), Sanford's arrowhead (Sagittaria sari, fordii), tricolored blackbird (Agelaius tricolor), and southwestern pond turtle (Clemmy's marrnarata). There is no saltmarsh habitat associated with the site due to a lack of current of historic tidal influence.' Emergent marsh or riparian herb habitat associated with the property is limited to the three drainage ditches. The northern and southern ditches (Drainage A review of the Soil Conservation Service soil maps for the area indicates that Bolsa Silty Clay Loam occurs on the site. Tidal Flats occur over 2,000 feet from the site at the Anaheim Bay wetlands. Ditches C and A respectively) are considerably drier than the central drainage ditch ( drainage Ditch B) and support only sparse facultative wetland plant species. Due to the artificial construction of these ditches as well as the regular function and maintenance of them for flow/ drainages purposes at the facility since 1966, there is limited habitat available that could support the above - mentioned marsh - associated species. As such it is unlikely that any of these species could occur on the site due to a lack of suitable habitat. None of these species were observed on the site during biological surveys. 4.11 Special- Status Plants 41.11 Southern tarplant The southern tarplant (Centromadia parryi ssp. australis, FAQ is an annual that occurs along the margins of saltmarshes and can also occur in association with alkali meadows and marshes. It is able to tolerate high levels of disturbance. The southern tarplant is a CNPS List 1 B species. Focused surveys for this species were conducted on July 26, 2001. Approximately 385 individual plants were identified within and along the margins of Drainage Ditch C. No individuals were found beyond the upper banks of Drainage Bitch C. The southern tarplant has been identified in several locations in the vicinity of the project site. The adjacent Hellman Ranch property contains a population of southern tarplant significantly larger than that found in Drainage Ditch C on the project site. This species is tolerant of disturbance and has persisted at the project site despite ongoing maintenance activities such as mowing and clearing of the ditches for drainage purposes. 41.3 Sensitive Wildlife Species 41.3.1 Burrowing owl The burrowing owl (Athene cunicularia) is a ground- dwelling/nesting bird of prey that inhabits grassy fields, saltmarshes and other areas with flat or gentle topography with moderate to sparse cover. Topography and cover on the site are suitable for this species; however, the lack of many rodent burrows and/or banks or slopes where burrows or other nesting cavities could be found, along with the frequent disking of the site, severely limit the potential for this species to occur on the site. No individuals or potential burrows were observed during surveys of the site. 4.1.12 Monarch Butterfly The monarch butterfly (Danaus plexippus) is a migratory insect that winters on the California coast from Monterey to Mexico. The primary larval food plant for this species is milkweed (Asclepias sp.). In the Seal Beach area, monarchs are known to roost in eucalyptus groves. There are no eucalyptus trees on the project site and no extensive tree or shrub habitat of any kind that would be suitable habitat for the monarch. None were observed during any of the on -site biological surveys. 4,133 San Diego Horned Lizard San Diego horned lizard (Phrynosoma coronatum blainvillei) is a small reptile that feeds primarily on ants and other insects. This species primarily inhabits coastal sage scrub and chaparral communities in and and semi -arid climates. These lizards prefer friable, rocky, or shallow sandy soils for burrowing during winter hibernation or periods of inactivity. The lack of suitable habitat or soils on the site, as well as frequent disturbance of the site due to disking and mowing activities, likely precludes the occurrence of this species on the site. No individuals were observed on the site during biological surveys. Reptiles observed on the site were limited to the much more adaptable western fence lizard. 4.13.4 Western Yellow- Billed Cockoo Western yellow - billed cockoo (Coccyzus americanus occidentalis) is a migratory bird that inhabits riparian areas along larger river systems. This species once inhabited the riparian woodlands of the Santa Ana River basin, but has not been identified in many years and is presumed extirpated from the area. The lack of riparian habitat on the project site would preclude any occurrence of this species. 4.1,4 Additional Sensitive Species The following sensitive species were identified within the study areas or were determined to have potential to occur onsite. 41.41 Woolly Sea -blite During the focused survey for southern, tarplant (Centromedia parryi ssp. australis, FACE, approximately 12 individuals of woolly sea -blite (Suaeda taxifolia, FACW) were identified in Drainage Ditch B and along Drainage Ditch C. The woolly sea -blite is a CNP S List 4 plant species. 4.2 Floral and Faunal Survey Results 4.21 General Site Conditions The 107 -acre project site is bounded by we ter Avenue to the north, Seal Beach Boulevard to the east and southeast, Adolfo Lopez Drive to the south, and the Los Alamitos Flood Control Channel and Retarding Basin to the west. The project area is depicted on the U.S. Geological Survey (USGS) topographic maps Los Alamitos, California [dated 1964 and photorevised in 1981 ] and Seal Beach, California [dated 1 965 and photorevised in 1981 ] [Exhibit 2] . 10 The majority of the property has been developed with buildings and facilities that support the on -going operations of the Boeing Space & Communications Group headquarters. Currently Boeing employs approximately 2,500 people at this site. The site was historically part of the Los Alamitos Ranch. The current facility was initially constructed in 1966 and occupies approximately 62 acres in the eastern portion of the site. The remaining 45 acres on the site are located within a vacant field traversed by three manmade ditches that convey runoff from the facility and surrounding parking lots. The field and ditches are maintained on a regular basis for fire control, weed abatement, and drainage purposes. The site has existed in its current condition since construction of the facility in 1966 by North American Aviation, Inc. The three drainage ditches were excavated from fill material placed during construction of the facility. Historically, the lower portions of the site were likely part of an old flood plain of the San Gabriel River. Channelization and construction of flood control levees on the river have disconnected the site and surrounding areas from any direct hydrologic connection with the river. Based on elevation and soil data, the project site is not subject to tidal influence and was not historically subject to tidal influence. 4.2.2 Vegetation Associations The 107 -acre site includes a 62 -acre developed area encompassing the Boeing Space & Communications Group headquarters. Facilities and infrastructure with limited ornamental vegetation used in landscaping are present. The remaining 45 -acre area consists of a disked field traversed by three engineered drainage ditches. The south ditch (Drainage Ditch A) is primarily unvegetated with sparse emergent vegetation occuring in the upper part. The central ditch (Drainage Ditch B) is vegetated with emergent vegetation. The north ditch (Drainage Ditch C) is sparsely vegetated with a ruderal community. Small areas of the following vegetation communities occur within the field and drainage ditches: riparian herb (0.28 acre), emergent vegetation (0.12 acre), ruderal vegetation (1.21 acre), and ornamental vegetation (0.01 acre). Exhibit 3 depicts the locations of vegetation associations on the project site. 41.21 Riparian Herb Approximately 0.28 acre of riparian herb has been identified on the project site. Riparian herb is associated with two of the drainage ditches that occur onsite and is heavily degraded due to regular mowing. This community contains a component of non - native ruderal ,vegetation. Riparian herb vegetation occurs on the slopes and banks immediately adjacent to the upper third of Drainage Ditch A and adjacent to all of Drainage Ditch B. Vegetation includes alkali weed (Cress fruxillensis, FACW), salt grass (Distichlis spicata, FACW), Bermuda grass (Cynodon dactylon, FAC), five -hook bassia (Bassin hyssopifolia, FAC }, Australian saltbush (A triplex semihaccata, FAC), woolly sea -blite (Suaeda taxifolia, FACW +), Russian thistle (Salsola tragus, FACU), lamb's quarters (Chenopodium album, FAC), small - flowered iceplant (Mesembryanthemum nodiflorum, FACU), red brome 11 (Bromus madritensis ssp. rubens, NI), ripgut brome (Bromus diandrus, NI), and barley (Hordeum murinum, NI). Areas of riparian herb are regularly mowed during the disking of upland areas. 4.2.2.2 Emergent vegetation Approximately 0. 12 acre of emergent vegetation has been identified on the project site. Emergent vegetation occurs within 5.0 linear feet of the culvert inlet on Drainage Ditch A and within all of Drainage Ditch B. The areas of emergent vegetation are regularly disturbed through mowing and also contains a component of non - native ruderal vegetation. Plant species associated with the areas of emergent vegetation include tail umbrella -sedge (Cyperus eragrosiis, FACW), alkali bulrush (Scirpus maritimus, OBL), lesser duckweed (Lemna minor, DBL), curly dock (Rumex crispus, FACW -), rabbitfoot grass (Polypogon monspeliensis, FACW +), Italian ryegrass (Lolium multiflorum syn. L. perenne, FAC), needle spike -rush (Eleocharis acicularis, DBL), scarlet pimpernel (Anagallis arvensis, FAC), yellow sweet - clover (Melilotus indica, FAC), bur - clover (Medicago polymorpha, FAC), dallisgrass (Paspalum dilatatum, FAC), white amaranth (Amaranthus albus, FACU), bristle grass (Setaria sp., FAC), and bristly ox- tongue (Picris echioides, FAC). 4.2.23 Ruderal Approximately 1.2 l acres of ruderal vegetation has been identified on the project site. Ruderal vegetation is associated primarily with Drainage Ditches A and C, but also occurs in patches throughout the site where the vegetation has not been removed through disking/mowing. vegetation includes black mustard (Brassica nigra, UPL), summer mustard (Hirschfeldia incana, UPL), wild radish (Raphanus sativus, UPL), Russian thistle, scarlet pimpernel, London rocket (Sisymbrium irio, FACU), castor bean (Ricinus communis, FACU), yellow sweet- clover, bur - clover, and Italian ryegrass and other non- native grasses. Also included within the ruderal plant community in Drainage Ditch C is the southern tarplant (Centromedia parryi ssp. australis, FAC). 4.2.2.4 ornamental Approximately 0.01 acre of ornamental vegetation has been identified on the project site. The ornamental vegetation consists of a patch of vegetation occurring around the base of a power pole on the west edge of the project site. Ornamental vegetation includes olive (01ea sp.) and date palm (Phoenix canariensis). This area also contains ruderal vegetation including wild radish and London rocket. 4.2.2.5 Disked/Disturbed Approximately 43.38 acres within the undeveloped portion of the project site consist of areas that are maintained on a regular basis. These areas lack any significant vegetation. 12 Table 1. Summary of Vegetation Associations Vegetation Associations Area (Acres) Disked/Disturbed 43.38 Riparian Herb 0.28 Emergent Vegetation 0.12 Ruderal Vegetation 1.21 Ornamental Vegetation 0.01 Total 45.00 4.23 Wildlife 4.231 Reptiles Identification of reptiles from the project site was determined by physical evidence and direct visual identification. Reptiles detected onsite during general surveys were limited to the western fence lizard (Sceloporus occidentalis). 4.23.2 Mammals Identification of mammals from the project site was determined by physical evidence and direct visual identification. Mammals observed onsite during general surveys include the desert cottontail (Sylvilagus auduboni), California ground squirrel (Spermophilus beechyi), and domestic dog (Canis Jam iliaris). 4.233 Birds Birds observed on the project site include: house finch (Carpodacus mezicanus), mourning dove (Zenaida macroura), European starling (Sturnus vulgaris), barn swallow (Hirundo rustica), cliff swallow (Petrochelidon pyrrhonota), American crow (Corvus brachyrhnchos), rock dove (Columba Livia), northern mockingbird (Mimuspolyglottos), 4 Anna's hummingbird (Calypte anna), house sparrow (Passer domesticus), black phoebe � (Sayornis nigricans), hooded oriole (Icterus cucullatus), Say's phoebe (Sayornis saya), white - crowned sparrow (Zonotrichia leucophrys), song sparrow (Melospiza melodic), western meadowlark (Sturnella neglecta), California towhee (Pipilo crissalis), and killdeer (Ceryle alcyon). 4.23.4 Raptors Limited raptor foraging behaviors have been observed at the project site and suitable � foraging habitat is of very low quality. Raptors observed within the vicinity of the i project site during focused surveys have included the red - tailed hawk (Buteo jamaicensis), turkey vulture (Cathartes aura), and American kestrel (Falco sparverius). 13 Observed foraging activities exhibited by red - tailed hawks and turkey vultures at the site were limited to circling directly above or immediately off site. An American kestrel was observed on one occasion to successfully kill an item of prey in the adjacent flood - control basin and then return to the project site to consume the prey on a telephone pole. No other raptor species (including loggerhead shrike, white - tailed kite, northern harrier, and red - shouldered hawk) were observed utilizing the site. Red - Tailed Hawk Red - tailed hawks were observed circling above the site or immediately off site on seven occasions during focused surveys. The red - tailed hawk is common throughout California and can be found in a wide variety of habitats. Red -tail hawks eat small mammals up to hares in size, small birds, reptiles, amphibians, and some carrion. In winter, these hawks are largely dependent on mice, but will also take medium to fairly large birds on the ground. This hawk searches for prey by soaring, but will also perch and pounce, and occasionally hover. Turkey Vulture Turkey vultures were observed circling above the site and immediately off site on seven occasions during focused surveys. The turkey vulture is common during the breeding season throughout most of California and occurs in open stages of most habitats that provide adequate cliffs or large trees for nesting, roosting, and resting. Turkey vultures primarily eat carrion, rarely live birds, eggs, or live mammals. Turkey vultures are highly specialized soarers that forage aerially over roads, fields, open forests, and nearly all open habitats. This bird searches for carrion from the air and from a perch, aided by its sense of smell. American Kestrel American kestrels were observed perched onsite on three occasions, and were observed one time attempting and one time successfully killing an item of prey in the adjacent Los Alamitos retarding basin and then bringing the prey item to the site where it was consumed on a telephone pole. The American kestrel is common throughout California and can be found in a wide variety of habitats including urban areas and residential neighborhoods. American kestrels actively prey upon European starlings, deer mice, lizards and upon beetles and grasshoppers. Kestrels are able to capture insects more readily than other prey, and thus concentrate on them when they are readily available. Research has indicated that nearly all hunts were initiated from perches. A summary of raptors observed_ onsite and foraging behaviors observed within the project area is provided in Tables 3 and 4. These results are not comprehensive and likely underestimate the level of activity, but clearly indicate that the proposed project site does not provide raptors with suitable foraging opportunities. 14 s Because the site is disked regularly, vegetation consists of only low growing species, �" g none of which provide suitable cover for small mammals, including California ground squirrels. The only areas onsite that were utilized California Q y utilized by Californi ground squirrels 1 included three e drainage ditches located within the western portion of the site that were avoided by disking activities. Although perching platforms (including telephone poles, telephone wires and fences) are resent onsite, their location along the perimeter of the P g P site greatly inhibits raptors from successfully ambushing prey from directly above. Ground squirrel activity is highest at the eastern end of the drainage ditches or away from potential raptor perching platforms. x 3 1 I Table 2. Raptor Survey Conditions Survey Bate Survey Time Cloud Cover Temperature Wind June 7, 2001 120-30-15-030 70 % 70' F 4 Mph June 13, 2041 09:00-13:00 Clear 74 ° F 5 — 7 Mph P July 25, 2001 10 :00 -13 :00 100% 71 OF 2 -3 Mph September 4, 2001 9:30 --12:30 100% 71 OF 1 Mph November 2, 2001 7:30 - -10:30 100% 64 ° F 1 Mph December 11, 2001 8:00 -11:00 Clear 63 0 F 5 — 8 Mph P January 17, 2002 13:00-16:00 Clear 52 ° F 3 Mph February 19, 2002 10:30-13:30 70% 67 ° F 1 Mph March 15, 2002 13:00 —16:00 Clear 71 OF 2 Mph April 18, 2002 10:00 -13:00 100% 70 OF 6 — 10 Mph Table 3. Raptor Abundance observed onsite Survey Bate Red- Tailed Hawk Turkey Vulture American Kestrel June 7, 2001 0 0 0 June 13, 2001 3 2 0 July 25, 2041 2 2 0 September 4, 2041 0 2 0 November 2, 2001 1 0 1 December 11, 2001 0 0 0 January 17, 2002 1 0 1 February 19, 2002 3 0 1 March 15, 2002 0 0 0 April 18, 2002 0 0 0 15 Table 4. Recorded Raptor Behaviors Onsite Behavior REHA TUVU AMKE Total Attempts 0 0 1 1 Circling 7 7 0 14 Hovers 0 0 0 0 Perched 0 0 3 3 Kills 0 0 1 1 Fatal 7 7 5 19 REHA = red - tailed hawk, TUVU = turkey vulture, AMKE = American kestrel. These results do not reflect the number of birds using the property, instead these numbers reflect the number of observed foraging behaviors. 43 Wildlife Movement Corridors Wildlife movement corridors link together or connect areas of suitable natural habitat that are otherwise separated by rugged topography, human disturbance, or changes in vegetation. Disruption of these corridors and fragmentation of natural areas which they connect leads to isolated patches or "islands" of wildlife habitat. The project site is surrounded on the northern and eastern boundaries by development. The western site boundary abuts the Los Alamitos Retarding Basin. To the south, the site is separated from the neighboring Hellman Ranch along most of its boundary by Adolfo Lopez Drive and associated development. In the southwest corner of the site, a small vacant lot separates the project site from Hellman Ranch. While both the Los Alamitos Retarding Basin and Hellman Ranch may provide wildlife habitat in the area, the project site does not act as a wildlife movement corridor to these areas, due to its lack of connections to other natural areas. 5.0 JURISDICTIONAL RESOURCES 5,1 Nan -Tidal Artificial Drainage Ditches Drainage features on the site are limited to three earthen non -tidal artif cial drainage ditches excavated from upland for the purpose of conveying discharges from the facility to the adjacent flood control facility. In addition a series of concrete v- ditches act to channel surface runoff toward the central drainage ditch on -site. The three drainage ditches are oriented from east to west within the approximately 45 -acre disked field. The 1964 USGS topographic map for the area shows no blue -line drainages occurring on the site. Drainage features on the site are depicted on the Jurisdictional Delineation Map [Exhibit 4]. 16 5.11 Drainage Ditch A Drainage Ditch A is located at the southern property boundary, adjacent to Adolfo Lopez Drive [Exhibit 5, photograph 1 ]. This feature enters the site via a 48 -inch culvert and travels approximately 641 feet before exiting via a second culvert to the Los Alamitos Retarding Basin. The bottom width of this drainage (as measured from toe -of -slope to toe -of- slope) is approximately seven feet along the entire length. Ditch A was designed to convey runoff from a parking lot in the southeastern corner of the facility. A small tributary drainage ditch enters Ditch A approximately 350 feet down gradient from the inlet. This tributary appears to be supported entirely by runoff from a nearby animal shelter and an equipment staging area. A six -inch p.v.c. pipe from the animal shelter enters the tributary at its origin north of Adolfo Lopez Drive. The tributary extends approximately 120 feet from the inlet pipe to the confluence with Drainage Ditch A and is approximately two feet wide. During each of the three site visits to evaluate hydrology, saturation was observed close to the surface within the upper portion of Ditch A and below the tributary inlet. This ditch exhibits significant evidence of scour within the channel and vegetation within the channel was observed to be matted -down, indicating that the ditch conveys rapid and frequent flows of short duration. Flowing water was not observed in the ditch during any of the site visits. Drainage within the ditch is rapid and the ditch does not support continuous or long -term saturation throughout the entire channel. Saturation within the upper channel was found to extend between 27 and 55 feet from the culvert inlet on the evaluation days. In this area, saturation appears to be perched over a compact, clay -rich fill material used in the construction of the ditch. Saturation occurring below the tributary inlet was observed to extend for approximately 50 feet from the inlet on the May 1, 2001 evaluation date. On April 21 and May 1, 2002, no saturation was observed extending, from the tributary inlet. On those days, ponded water in this area was limited to the small scour depression located immediately below the tributary outfall. 51.2 Drainage Ditch B Drainage Ditch B is the central drainage ditch on the property and is located directly west of existing buildings [Exhibit 5, photograph 2]. This feature enters the site via a 24 -inch central culvert and two 18 -inch flanking culverts. It extends approximately 491 feet to the west before exiting via a 48 -inch culvert to the Los Alamitos Retarding Basin. The bottom width of this drainage ditch is approximately four feet along the entire length. This ditch was designed to convey runoff originating in the facility [Exhibit 5, photograph 3]. Drainage Ditch B (central ditch) receives frequent inputs from runoff and building condensates within the existing Boeing facility. on all three of the site visits to evaluate hydrology, standing water or saturation near the surface was observed throughout the entire channel. The ditch exhibits signs of flow within the channel including debris racks and drainage patterns within the soft sediment. 17 5.13 Drainage Ditch C Drainage Ditch C is located at the northern property boundary, adjacent to Westminster Boulevard [Exhibit 5, photograph 4]. This feature enters the site via a 48 -inch culvert and travels approximately 680 feet before exiting via a second culvert to the Los Alamitos Retarding Basin. The bottom width of this drainage is approximately seven { feet along the entire length. This ditch was designed to convey runoff from a parking lot on the north side of the facility. No saturation or inundation was observed in the north ditch (Drainage Ditch C) during any of the site visits. This ditch does not exhibit any signs of recent flows within the channel, nor has evidence of flowing water been observed within the ditch at any point during the 2001 to 2002 evaluation period. Soil in this ditch is primarily composed of clay -rich fill material. This fine- grained substrate likely retains sufficient moisture from direct precipitation to support the ruderal plant community observed in the ditch. Table 5. Summary of Site Visits Focused on Hydrology of Drainage Ditches Drainage Ditch Bate of Evaluation Extent of Saturation Date of Last Storm Event* PPT (in) Ditch A 5/1/2001 aturated within 56 ft of culvert inlet nd within 50 ft of tributary inlet 4/21/2001 0.04 Ditch B aturated entire length of ditch Ditch C No saturation in ditch Ditch A 4/21/2002 Saturated within 27 ft of culvert inlet and small scour pond within 2 ft of tributary inlet 4/15/2002 0.08 Ditch B aturated entire length of ditch Ditch C No saturation in ditch Fil A 5/1/2002 Saturated within 32 ft of culvert inlet and small cour pond within 3 ft of tributary inlet 4/26/2002 0.44 itch B aturated entire length of ditch itch C o saturation in ditch *Kecorded at Analieun Barber City Station #I t F/ County of Orange, Public Facilities and Resources Department Data 5.2 Wetland Functions Associated v�ith the Drains a Bitches A variety of methods have been developed to measure or assess functions provided by l wetlands and other aquatic ecosystems. A widely accepted methods developed by the Corps, is the Hydrogeomorphic approach (HGM) that separates wetland functions into three distinct categories: Hydrological, Biogeochemical, and Habitat. FY i 18 Hydrological Functions include Dynamic and Long -Term Storage of Surface water; Dissipation of Energy, and Moderation of Groundwater Flows. Biogeochemical Functions include Removal of Imported Elements and Compounds, Retention of Particulates, Nutrient Cycling, and Carbon Export. Habitat Functions include both Floral and Faunal Elements. The following is a qualitative assessment of Drainage Ditches Al B. and C relative to the above - mentioned functions. 5,21 Drainage Ditch A H drolo 'c Functions Drainage Ditch A was constructed to allow storm discharges to pass as quickly and efficiently through the site as possible. The ditch provides for no dynamic or long -term storage of surface water, minimal energy dissipation and no moderation of subsurface flows. B iogeochemi cal_., Functions Drainage Ditch A is a largely unvegetated (or vegetated with sparse low- growing annual species) earthen channel. The ditch receives limited dry - season flows from the adjacent animal shelter and as such provides for limited removal of imported elements and compounds. Storm flows reaching the ditch originate largely on paved areas and carry only limited particulates, which would not be subject to significant retention due to the lack of sufficient vegetation or topography that would allow particulates to settle out of the water column. The ditch would also provide for very limited nutrient cycling or carbon export, again due to the sparse character of the vegetation and minimal topographic complexity. Habitat Functions Since Drainage Ditch A is largely unvegetated or vegetated with sparse low - growing (and mostly non - native) vegetation, the ditch provides habitat values very similar to the adjacent upland areas that are regularly maintained. 5.2.2 Drainage Ditch B Hydrologic Functions Drainage Ditch B was constructed to allow storm discharges to pass as quickly and efficiently through the site as possible. The ditch provides for no dynamic or long -term storage of surface water, minimal energy dissipation and no moderation of subsurface flows. The ditch is a discharge point for dry - weather flows that originate on the property in landscape areas and from other sources such as air conditioning condensate. As such, the ditch exhibits limited surface discharge on a regular basis. 19 Biogeochemical Functions Drainage Bitch B is vegetated with native and non - native hydrophytes that are supported by the dry - weather flows. The dry - season flows originate on the site and would be expected to exhibit limited amounts of imported elements and compounds that would be removed by the vegetation. Storm flows reaching the ditch originate largely on paved areas and carry only limited particulates, which would not be subject to moderate retention due to the vegetation associated with the channel. The ditch would also provide for nutrient cycling and carbon export due to the presence of the vegetation. Habitat Functions Since Drainage Bitch B is vegetated with sparse low- growing vegetation, the ditch provides very minimal habitat values. 5.23 Drainage Ditch C Hydrologic Functions Drainage Ditch C was constructed to allow storm discharges to pass as quickly and efficiently through the site as possible. The ditch provides for no dynamic or long -term storage of surface water, minimal energy dissipation and no moderation of subsurface flows. Bia eochemical Functions Drainage Ditch C is a largely unvegetated (or vegetated with sparse low - growing annual species) earthen channel. The ditch receives no dry - season flows and limited storm flows. As such, the ditch provides for limited removal of imported elements and compounds. Storm flows reaching the ditch originate largely on paved areas and carry only limited particulates, which would not be subject to significant retention due to the lack of sufficient vegetation or topography that would allow particulates to settle out of the water column. The ditch would also provide for very limited nutrient cycling or carbon export, again due to the sparse character of the vegetation. Habitat Functions Drainage Ditch C is largely unvegetated or vegetated with sparse low- growing (and mostly non - native) vegetation and thus, provides very minimal habitat values. This ditch does support two special- status plant species but is not characteristic of the habitat typically occupied by these species. 20 53 Coordination with the Regulator A envies 5.31 U.S. Army Corps of Engineers Pursuant to the guidance provided in the Preamble to 33 CFR 328.3 that addresses the jurisdictional status of artificial drainage ditches, no Corps jurisdiction is present on the project site. The Corps Los Angeles District has concurred with this assessment in a letter dated August 1, 2001 which states that the project is not subject to Corps jurisdiction under Section 404 of the Clean water Act and will not require a Section 404 permit [Exhibit 6]. 5.3.2 California Department of Fish and Game As noted above, CDFG can assert jurisdiction over artificial waterways where such waterways exhibit attributes associated with natural waterways. Although the three drainage ditches on the subject property do not support high quality aquatic habitat, portions of Drainage Ditches A and C. and all of Drainage Bitch B support annual and/or perennial wetland or facultative wetland species. The area associated with the three drainage ditches totals 0.27 acre. CDFG has made a preliminary determination that all portions of the three ditches are subject to CDFG jurisdiction and impacts to the ditches will require authorization through a Section 1603 Streambed Alteration Agreement.5 . 5.33 Regional Water Quality Control Board As there is no Corps jurisdiction at the project site, the drainage ditches would not be subject to RWQCB jurisdiction under Section 401 of the Clean Water Act. However, as noted in Section 3.1.2, the RWQCB may require wDRs pursuant to the Porter Cologne Act, for impacts to waters of the state not covered under Section 404. This area would. total 0.27 acre and would mirror the jurisdiction of CDFG. 5.3,4 California Coastal Commission Potential CCC wetlands at the site may include all areas that are permanently or periodically inundated or saturated close to the soil surface. Portions of Drainage Bitch A, its tributary drainage ditch, and all of Drainage Ditch B exhibit indicators of wetland hydrology including signs of periodic inundation or saturation. These areas also exhibit hydric soil characteristics and support sparse hydrophytic vegetation. The remainer of Drainage Ditch A and all of Drainage Ditch C do not exhibit indicators of wetland hydrology or hydric soil characteristics. The lack of wetland hydrology in these areas was confirmed by monitoring of hydrology within the ditches on three occations s Crum, Laura. 2002. During a Personal Communication with CDFG representative Ms. Crum, Ms. Crum indicated that based upon guidance from her supervisors Mr. Don Chadwick and Ms. Terri Dickerson, it was expected that CDFG would require authorization, through a Streambed Alteration Agreement, for removal of any of the artificial ditches. 21 following precipitation events. A final determination by the Coastal Commission will not be made until a formal application is submitted. 6.0 IMPACTS 6.1 Impacts-to Biological Resources Grading for the project would result in impacts to two special- status plant species, southern tarplant and woolly sea- blite, that are associated with Drainage Ditch C which would b� filled to construct the project. 6.11 Direct Impacts to Southern Tarplant Grading for the project will result in the loss of 385 individuals of southern tarplant located within Drainage Ditch C.b Although this species is included on the CNPS List 1 B, this impact would not be considered significant because the plants are associated with an artificial drainage ditch that does not exhibit "habitat" functions typically associated with. this species. The loss of 3 85 individuals would be considered adverse prior to mitigation. 6.1.2 Direct Impacts to 'Woolly Sea -Blite Grading for the project will result in the loss of 12 individuals of woolly located within Drainage Ditch C. woolly sea -blite is included on the CNPS List 4 (a watch list) and is still common, exhibiting wide- spread distribution. Because this species is wide spread and common and the 12 individuals are associated with an artificial drainage ditch, the impacts are not considered adverse or significant. 5.2 Impacts to Jurisdictional Resources As noted in Section 5.2.2, impacts associated with project grading to Drainage Bitch C will require authorization through a Section 1 603 Streambed Alteration Agreement. Drainage Ditches A and B will be subject to indirect impacts, as they will be incorporated into the flood - control and water quality features designed for the project. However, the limited aquatic resources associated with Drainage Ditch A and the aquatic resources associated with Drainage Ditch B will not be directly affected by the project. Rather, site grading will result in the creation of terraces adjacent to channel bottoms for both drainage ditches with the created terraces providing limited wetland habitat, flood -. control, water quality, and buffer functions. 'As rioted in the Methods section, surveys were conducted in 2001 and 2002. Based on preliminary counts conducted in May 2002, the number of plants was considerably larger in 2001 (presumably due to higher rainfall) so the impact number of 385 is based upon the 2001 survey data. 22 6.2.1 Direct Impacts to Drainage Ditch C Grading for the project will result in impacts to 0.11 acre of CDFG and potential Rw CB jurisdiction associated with Draina e Bitch C. Since the artificial Drainage � g Ditch exhibits minimal aquatic function, the impact is considered adverse but not significant prior to mitigation. with mitigation, the impact is not considered significant or adverse. 6.2.2 Indirect Impacts to Drainage Ditches A and B Creation of flood - control and water quality features associated with these artificial drainage ditches will not directly impact the channel bed of either artificial ditch. Grading will create terraces that will provide for flood- control and water uali ty q functions and limited habitat function. Cross sections of the flood -- control and water quality features associated with Drainage Ditches A and B are provided in Exhibit 7. = g P 6192.1 Indirect Impacts Associated with Flood Control Features Grading will create basins adjacent to Drainage Ditches A and B. The basins will detain water for up to 48 hours during significant storm events. The infrequent ponding with only limited duration would not have a measurable impact on the hydrology of the drainage ditches. As such, there would be no indirect impacts associated with creation of the flood control functions adjacent to the ditches. 6.2.2.2 Indirect Impacts Associated with Water Quality Features In addition to providing flood control, the graded basins will provide water quality functions as dry- weather nuisance flows and first flush flows will be directed onto the terraces adjacent to the drainage ditches. Existing dry- weather and storm flows that currently discharge into Drainage Ditch B will continue as in the .existing condition. As such, there would be no indirect impacts associated with creation of the water quality functions associated with the basins. _ 7.0 MITIGATION 7.1 Mitigation. for Impacts to Biological Resources 74-11 Southern Tarplant 1 In order to mitigate adverse impacts to 385 individual of southern tarplant, a translocation program will be developed that includes ofsite and offsite components. Onsite, plants will be translocated to the terraces adjacent to Drainage Ditches A and B. 23 Dffsite, translocated plants will be moved to the adj acent Hellman Ranch site, which supports a patchy distribution of southern tarplant. 791.2 Woolly Sea-Blite } Impacts to woolly sea -blite were not determined to be significant or adverse; nevertheless this species will be 'incorporated ' p rp ated into plantings on the terraces adjacent to Drainage Ditches A and B. 7.2 Mitigation for Im acts to Jurisdictional Resources 71.1 Drainage Ditch C — CDFG and ('Potential) RWQCB Jurisdiction As noted above, Drainage Bitch C exhibits minimal aquatic function and, other than the southern tarplant and woolly sea- blite, the artificial ditch supports essentially no native vegetation. Mitigation for impacts to 0.11 acre of CDFC and potential RWQCB jurisdiction will be provided through creation of the terraces adjacent to the Ditches A and B. The terraces will be planted with native hydrophytes appropriate for the hydrological conditions expected for the terraces. In total, a minimum of approximately 0. 11 acre will be provided on the graded terraces. 810 CONCLUSIONS 8.1 Biological ,Resources As described above, the project site exhibits low overall biological function. Implementation of the project will not result in significant impacts to biological resources with adverse mitigation, e se impacts, before mit�gatlon, associated with southern tarplant. Impacts to southern tarplant would be fully mitigated and not be considered adverse with implementation of mitigation. i 8.2 Jurisdictional Resources 81211 U.S. Army Corps of Engineers No Corps jurisdiction is present on the project site. The Corps Los Angeles District issued a letter on August 1, 2001 stating that the project is not subject to Corps rP jurisdiction under Section 404 of the Clean Water Act and will not require a Section 404 permit [Exhibit 6]. 8.2.2 California Department of Fish and Game Implementation of the project would result in the loss of 0.1 l acre of CDFC jurisdiction associated with the artificial Drainage Ditch C. Although not considered significant, loss 24 of this ditch would be considered adverse before mitigation. With mitigation, loss of this artificial feature would be fully mitigated and not considered adverse. 8.23 Regional Water Quality Control Board If the RWQCB asserts jurisdiction over Drainage Bitch C, a WDR would be required for the loss of 0.11 acre of waters of the state. The loss of this ditch would not be considered significant but would be considered adverse before mitigation. With mitigation, loss of this artificial feature would be fully mitigated and not considered adverse. 5.2A California Coastal Commission Drainage Ditch C exhibits minimal aquatic function and does not exhibit criteria that would be consistent with the Coastal Act definition of a wetland. 83 Environmentally Sensitive Habitat Areas As noted in Section 3.1.5, the CCC regulates activities within or adjacent to ESHAs. These are areas in which plant or animal species or their habitats are either rare or especially valuable because of their special nature or role in an ecosystem, and which could be easily disturbed or degraded by human activities. Sensitive habitats and associated species occurring in the vicinity of the project site were identified using a literature search of the CNDDB. The occurrence of these habitats and species on the project site was evaluated using on-site surveys. Sensitive habitats and species identified as occurring on the project site during general and focused surveys include wetland habitats and populations of the CNPS List 1 B southern tarplant (Centromedia parryi ssp, australis, FAC). The site was also evaluated for use as raptor foraging habitat. Wetland habitats occurring on the project site are limited to portions of Drainage Ditch A and Drainage Ditch B onsite. These ditches were artificially constructed to drain the Boeing facility and are not subject to tidal influence. Since these ditches contain only marginal aquatic habitat sustained by urban runoff, these ditches do not play an especially valuable role in the local, coastal ecosystem and would not meet the definition provided in the Coastal Act for ESHAs. Drainage Ditch C does not support periodically saturated or inundated conditions and does not meet the definition provided in the Coastal Act for wetlands. As such Drainage Ditch C would not be considered an ESHA. A small population of the southern tarplant (Centromedia parryi ssp. australis, FAC) was identified in Drainage Ditch C of the project site. The tarplant is tolerant of disturbance and has persisted in Ditch C despite continual disturbance from ongoing maintenance activities at the site. A larger, widespread population of the southern tarplant exists on the Hellman Ranch property adjacent to the project site. It is likely that the Boeing Ditch C ( southern tarplant population has been derived from the Hellman population. The Hellman 25 population will be preserved as a part of restoration activities at that site. The Boeing tarplant population is significantly smaller and more disturbed than the Hellman population, and it does not provide an `especially valuable role" in the local ecosystem and as such would not constitute or be considered an ESHA. No functional raptor foraging habitat exists on the project site. Foraging activities observed at the site have been almost entirely limited to circling behaviors high above the site. As the site does not provide especially valuable foraging habitat for raptors, it would not be considered an ESHA. W r t i J Ty- '� t � '` -. f L vier, l� r ''f!' ^,,• •�V f{,� l -1'-', • }` (a� � •• �ti f` Y• C�^ •' r ^M1 X71 F� •rte tom_'�_ �� y 'T '^_ f•1 `fJ'+,'"'.'1y�S�� + •lY.i 0 1 - ��Z it �\ �i [i] 1 r I f ��• ,� V•y� Cr LU PPP 000:5 %�' +p Cs" f... "ri ■L y %Iy�i+ �, rior s wry Liu @PC 'All 8 QC Co LLJ UJI ALF lot CL _ ' �= � � --r�� -- �•-rS �. � f r ] � � . , � tip. �. • % a, VLLJ 0 do r LN ; �► CCQ y . r 1 1 W t- 01 o ., o I � x a CL 1.5 � r ■ ■�+i f • E to Adapted from USGS Santa Ana and Long Beach Quadrangles � 0 2 a s NORTH MILES CO r- W � Qm U X O W Q O Y J Z z w cD i h p IN, L) L OU C* A t #; I I .�. jr z i r :Z . 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'•r 1 {' j� , '•: K' T r,! f - t }•i * -�1` 1 .1- .i l' al`•r 7. ;�''S{ ►II; Mr J l ` i : r . ,- , 'M 1 1 i' +� i 1- 1 .AI Y #, j To . . . . . . . . . L-1! !-- - I + f' r +r , .. i 1 : f r ... r' *T 1_. :+ Y ' _ Li '• ��-- 4 L -. . - ,K' :' 1' ,r - - -1 r . . r ' , + r4 a. +t 1, `Ik . - (' • rL�+ % + •- ti -• = 5 `r"'} -'�- `4:a�' '. �+4 ,! 3a.'4" y ri Si S', ' .' r • - . a' d * i - • - i •• .'r ' - r . I. CONCEPTUAL WETLANDS RESTORATION PLAN FOR BOEING SPACE &COMMUNICATIONS GROUP SPECIFIC PLAN, SEAL BEACH, ORANGE COUNTY Bate April 1, 2003 Prepared for: Boeing Realty Corporation 15480 Laguna Canyon Road Suite 200 Irvine, CA 92618 -2114 Prepared by: Glenn Lukos Associates, Inc. 29 orchard Lake Forest, California 92630 Contact: Sara Young I. INTRODUCTION This conceptual wetlands restoration plan for the Boeing Seal Beach Pro ect (Project) describes habitat creation/ restoration intended to: 1) compensate for proposed impacts to approximately 0.1 l acre of CDFG jurisdiction associated with the artificial Drainage Ditch C; and 2) provide water quality treatment at the site. Approximately 2.68 acres of alkali meadow and marsh habitat will be preserved, restored, and/or created at the Project site. This document outlines the Project, the restoration areas, the construction necessary to prepare the restoration areas for planting, the plant palettes, the monitoring and maintenance tasks, and other details. H. PROJECT DESCRIPTION A. Location and Setting of Project The 107 -acre Project site is bounded by Westminster Avenue to the north, Seal Beach Boulevard to the east and southeast, Adolfo Lopez Drive to the south, and the Los Alamitos Flood Control Channel and Retarding Basin to the west. The Project site is depicted on the U.S. Geological Survey (USGS) topographic maps Los Alamitos, California [dated 1964 and photorevised in 1981 and Seal Beach, California [dated 1965 and photorevised in 1981 ]. The majority.of the property (Property) has been developed with buildings and facilities that support the on -going operations of the Boeing Integrated Defense Systems operations. Currently Boeing employs approximately 2,500 people at this site. The site was historically part of the Los Alamitos Ranch. The current facility was initially constructed in 1 966 and occupies approximately 62 acres in the eastern portion of the site. The remaining 45 acres on the site are located within a vacant field traversed by three manmade drainage ditches that convey runoff from the facility and surrounding parking lots to the Los Alamitos Retarding Basin. The field and ditches are maintained on a regular basis for fire control, weed abatement, and drainage purposes. The site has existed in its current condition since construction of the facility in 1966 by North American Aviation, Inc. B. Project Description The Project consists of: development of a business park on the western portion of the Property; additional light industrial development within the existing Boeing facilities in the central portion of the Property; and development of a hotel /retail area at the eastern end of the Property. The construction of a business park on the western portion of the Property will require filling of Drainage Ditch C, located near Westminster Avenue. This will result in permanent impacts to approximately 0. 11 acre of CDFG jurisdiction within the Ditch. The Project will require recontouring of the floor of Drainage Ditch A. This will result in temporary impacts to an additional 0.11 acre of CFDG jurisdiction. Ditch A will be fully restored and enhanced following recontouring. 0) C. Project Impacts and Avoidance The Proj ect will result in permanent impacts to approximately 0. 11 acre of CDFG jurisdiction within Drainage Ditch C. An additional 0.11 acre of CDFG jurisdiction within Drainage Ditch A will be temporarily impacted by the proposed Project. Of the 0.1 l acre of CDFG jurisdiction within Ditch A, less than 0.01 acre consists of non - native wetland vegetation. The Project will avoid impacts to approximately 0.05 acre of CDFG jurisdiction associated with Drainage Ditch B. An additional 0. 11 acre of habitat within the bottom of Ditch A will be fully restored with Project implementation. Should any temporary impacts to vegetation within Ditch B occur during the restoration phase, the affected area will be restored to existing contours and replanted following creation of the wetland terraces, as described below. III. WETLAND RESTORATION Wetland restoration at the Project site will include the following components: 1) preservation of approximately 0.05 acre of existing wetland habitat within Drainage Ditch B; 2) restoration and enhancement of approximately 0. 11 acre of wetland habitat within Drainage Ditch A; 3) creation of approximately 0.42 acre of wetland habitat on terraces adjacent to Ditches A and B; and 4) creation of approximately 2.10 acres of wetland habitat within and surrounding water quality basins. A total of approximately 2.68 acres of wetland habitat will be preserved, restored, or created at the Project site with implementation of the Project. Approximately 0.05 acre of existing wetland habitat within Ditch B will be preserved with Project implementation. This Ditch currently supports a mix of native and non - native wetland plant species throughout the entire length. This habitat was created and is supported by untreated nuisance flows and stormwater runoff from the Boeing facility. Following construction, the existing source of hydrology to the Ditch will be maintained and the habitat will be managed in its current condition. An additional 0. 11 acre of habitat within the bottom of Ditch A will be fully restored with Project implementation. Ditch A is currently primarily unvegetated and supports less than 0.01 acre of non- native wetland vegetation. With Project implementation, the Ditch will be revegetated in its entirety with native wetland species, creating a net increase of 0.10 acre of vegetated habitat (and 0. 11 acre of native wetland vegetation) within the Ditch. Impacts to Ditch C will be compensated for through the creation of wetland terraces, eight feet wide, along each side of Ditches A and B. These terraces will be created by recontouring the banks of the Ditches to an elevation approximately one foot above the existing bottom of the Ditches. Wetland habitat on these terraces will be supported by runoff from the surrounding post - development Project area. Approximately 0.42 acre of alkali meadow /marsh habitat will be created on these terraces. 3 Approximately 2.1 o acres of wetland/riparian habitat will be created in two water quality treatment areas on the Project site. A series of small, linear basins will be constructed along the western perimeter of the site to capture runoff from the north portion of the site. A single, larger basin will be constructed between Adolfo Lopez Drive and Drainage Ditch A and will capture runoff from the south portion of the site. These basins and the surrounding area will be vegetated with wetland and riparian plant species and will function to filter low flow and first flush runoff from developed areas of the Project site. See the water Quality Assessment Report for further information on the construction and function of these water quality basins. A. Site Preparation ' Restoration plantings will be sustained in the long -term by the existing hydrologic regime at the Project site as well as supplemental flows from the newly developed portions of the Project site. The existing Ditches receive runoff from the developed portion of the Boeing site. Unlike Ditch C, Ditches A and B receive sufficient runoff from surrounding areas to support predominantly non - native herbaceous wetland and riparian plant species. Following Project implementation, the volume of runoff entering the Ditches is not expected to change significantly. Any additional runoff entering the Ditches will be treated to remove oil /grease, sediment, trash, and debris prior to entering the Ditches. The plant palette proposed for the restoration areas includes species known to favor the existing and proposed hydrologic conditions at the site. ' Restoration plantings would be established using container stock and seed. Tree and shrub species ,would be planted as container stock. Herbaceous species, as well as some shrub species, would be planted as seed. ' Restoration plantings would be subject to irrigation during the initial establishment. This irrigation would be slowly reduced over the first two or three years of the Project in order to allow the plantings to become self- sustaining. ' The seeding and planting of container stock will take place between October 1 and February 1 to take advantage of the winter rainy season, dormancy of foliage, and rooting period to ensure optimum survival of plantings. 4 B. Planting Plan The restored bottom of Drainage Ditch A and the wetland terraces created adjacent to Drainage Ditches A and B will be planted with an alkali meadow plant community. The water quality basins and surrounding areas will be planted with an alkali meadow /marsh community. These plant communities were selected using information gathered during site visits and from general knowledge of local plant communities. Planting shall consist of limited recontouring to create the terraces, installing above -grade irrigation, preparing planting hales, planting container stack, installing plant protection devices, applying mulch, and hydroseeding. No planting shall be done in any area until that area has been prepared in accordance with the plans and is approved by the Project Monitor (as hereafter defined). 1. Plant Palette Restoration of Ditch A and creation of wetland terraces will provide approximately 0.53 acre of alkali meadow /marsh habitat at the Project site. In addition, the CNPS List 1B southern tarplant (Centromadia parryi ssp. australis) and CNPS List 4 woolly sea -blite (Suaeda taxifolia) will be transplanted in portions of these terraces along both Drainage Ditches A and B. The alkali meadow /marsh plant community planned for the bottom of Ditch A and the terraces will incorporate the following species: Saltgrass (Distichlis spicata) Alkali bulrush (Scirpus maritimus) Alkali heath (Frankenia salina) Yerba mansa (Anemopsis californica) Mexican rush (Juncus mexicanus) Clustered field -sedge (Carexpraegracilis) Alkali ryegrass (Leymus triticoides) Douglas Baccharis (Baccharis douglasii) Brewer's saltbush (Atriplex lentiformis breweri) Spreading rush (Juncus patens) Parish's glassword (Arthrocnemum subterminale) Woolly sea -blite (Suaeda taxifolia) Southern tarplant (Centromadia parryi ssp. australis) The creation of wetland habitat within and surrounding the water quality basins will provide approximately 2. 10 acres of alkali meadow /marsh habitat at the Project site. The southern tarplant and woolly sea -blite will also be transplanted to the areas within and surrounding these basins. The alkali meadow /marsh plant community planned for the basins will incorporate the following species: Saltgrass (Distichlis spicata) Southwestern spiny rush (Juncus acutus leopoldii) Alkali bulrush (Scirpus maritimus) Saltmarsh heliotrope (Heliotropum curssivicum) Alkali heath (Frankenia Salina) Yerba mansa (Anemopsis californica) Mexican rush (Juncus mexicanus) Spreading rush (Juncus patens) Clustered field -sedge (Carexpraegracilis) Alkali ryegrass (Leymus triticoides) Douglas baccharis (Baccharis douglasii) Parish's glasswort (Arthrocnemum subterminale) Brewer's saltbush (Atriplex lentiformis breweri) Mulefat (Baccharis salicifolia) Emory's baccharis (Baccharis emoryi) Western ragweed (Ambrosia psilostachya) Woolly sea -blite (Suaeda taxifolia) Southern tarplant (Centromadia parryi ssp. australis) When possible, seed and cuttings from on -site vegetation or nearby sources will be utilized to produce the seed and container stock for the plantings. In the case of the woolly sea -blite and the southern tarplant, seed collection will occur on site to preserve the existing population. Seed and propagule collection will be coordinated with Project -site clearing and grubbing in order to ensure that use of on -site resources is maximized. C. Plant Relocation Program In order to mitigate adverse impacts to 385 individual of southern tarplant and approximately 12 individuals of woolly sea - blite, a translocation program will be developed that provides for the on -site relocation of these populations to the terraces adjacent to Drainage Ditches A and B, as well as to the areas within and surrounding the proposed water quality basins. This would produce a more viable and protected population on site, since the proposed wetland terraces will not be subject to the ongoing maintenance activities that currently disturb the existing populations within Drainage Ditch C. The existing populations within Drainage Ditch C are sub# ect to ongoing vegetation clearing for drainage purposes and are continually disturbed in their current location on the site. A larger, more viable population of the southern tarplant occurs on the adjacent Hellman Ranch property. The tarplant population in Drainage Ditch C is located nearly 4,000 feet from the Hellman Ranch site meaning that the on -site individuals are "isolated" from the Hellman population because the Halictid bees that serve as the primary pollinator have a average home range of between 300 and 400 feet, and a maximum range of no more than 600 feet. Establishment of a population in Ditch A, and within and surrounding the water quality basin adjacent to Ditch A, both located closest to Hellman Ranch, would bring the on -site population into genetic contact with the Heilman population, which would be of benefit to both populations. 3i IV. . HABITAT MAINTENANCE PROGRAM The created wetland terraces adjacent to Drainage Ditches A and B will be managed to support wetland and riparian habitat and. will not be subject to the ongoing maintenance activities that regularly disturb existing habitat within the Ditches. The bottom of Ditches A and B are currently maintained on a periodic basis for flood control and drainage purposes. Maintenance of restored and preserved wetland areas along the bottoms of Ditches A and B will continue following construction, as these areas will continue to serve in their current capacity as drainage conduits for the site. Vegetated habitat will be allowed to establish along the bottom of these Ditches in between periods of maintenance. Long term maintenance will primarily be limited to occasional hand clipping of vegetation. Should the Ditches ever require sediment removal, the procedure shall be coordinated with the Project Biologist and revegetation of the areas will be required. If required, revegetation of the bottom of Ditches A and B shall follow the planting plan outlined in Section III B. Implementation of the proposed comprehensive water quality treatment plan for the Project site, will greatly reduce the need for periodic cleaning of the Ditches, as additional. runoff will be pretreated prior to entering the Ditches. In addition, development of the site will greatly reduce the sediment load currently entering the Ditches from the surrounding dirt fi.eld. Periodic maintenance of the proposed water quality basins will also be required to maintain the treatment functions of these basins. Such maintenance may include occasional removal of accumulated sediment and debris, as well as thinning of vegetation to allow infiltration within the basins. Habitat surrounding the basins will not require such maintenance and will be managed solely for habitat and aesthetic functions. Habitat maintenance program components include: ' The purpose of the habitat maintenance program is to ensure the success of the restoration plantings. Maintenance will occur over the life of the wetland restoration. As the installation is completed, the wetland restoration specialist will schedule a meeting with key members of the landscape maintenance crew in order to identify proper maintenance. procedures for the irrigation system, weed control, plant replacement, pruning and staking, pest control, and trash removal. ' Initially, the applicant, but eventually a property owners association, will be responsible for financing and carrying out maintenance activities. The applicant or the association, as the case may be, may assign the maintenance responsibilities to an appropriate contractor, but will retain ultimate responsibility for maintenance of the restoration site. ' weekly weed control maintenance will be necessary for at least the first six months of the restoration. Uncontrolled weeds would quickly out - compete many of the desired native plant species. As the first year passes into the summer and fall, the weed problem is 7 expected to decrease. Depending on the health and spread of the desired plants, the weed maintenance schedule will likely lighten the second year of the restoration. V. MONITORING ' This program is intended to provide continued oversight of the restoration areas after installation is completed. ' Monitoring will be performed by a qualified biologist, arborist, or landscape architect with experience in native wetland habitat restoration and quantitative monitoring of vegetative communities (the Project Monitor). ' Monitoring will take place for a period of five years or until such time as the five-year success criteria established for the site are met. ' The success criteria proposed for the restoration site are based on examination of nearby examples of similar habitats and knowledge of growth rates and survivorship of the specified plants. The five -year goal is native vegetation coverage of 90% and no more than 5% coverage by non - native vegetation for any of the planting types. ' Monitoring for this restoration plan will include recording of the initial planting effort. Careful records will be made of the species, quantities, and sizes of all vegetation planted, as well as methods used. Any significant problems encountered, such as site conditions unsuitable for planting or poor container stock health, will be recorded. A photographic record of the site will be kept from the time of the initial planting, through the end of the monitoring program. Photo - stations will be established to ensure consistency in photographic documentation. 4440- 1c.mit.doc * -"ko-HIBIT A" �r DEPARTMENT OF THE ARMY L05 ANGELES DISTRICT, CORPS OF ENGINEERS SCANNED P.osoX�7„ LOS ANGELES, CALIFORNIA 80053 -UM August 1, 2001 REPLY TO Office of the Chief Regulatory Branch rh r Tony Bonika rnp Glenn Lukos Associates 23712 Birtcher Drive Lake Forest, CA. 92630 -1782 Dear Mr. Bomkamp: Reference is made to your letter (No. 200101302 -ESL) dated July 19, 2001 for a Department of the Army determination of non - jurisdiction for proposed impacts to three non - tidal drainage ditches contained on the property of the Pacific Gateway Business Center site in a tributary to San Gabriel River in Seal Beach, orange County, California. Based on the information furnished in your letter, we have determined that your w proposed project will not discharge dredged or fill material into a water of the Ignited States or an adjacent wetland. Therefore, the project is not subject to our jurisdiction under Section 404 of the Clean Water Act and a Section 404 permit is not required from our office. The receipt of your letter is appreciated. If you have any questions, please contact Erik S. Larsen of my staff at (213) 452 -34170 Sincerely, " -Chief, South Coast Section Regulatory Branch r i t t apilk AN A4 0 ry 4 i i NORTH OF C L SOUTH OF C L � �� 9' RI I�R (109) �cl QI ICCCC L J J TYPICAL SOUTH DITCH CROSS - SECTION NO SCALE 1 25' BUFFER (10) 25' BUFFER MINIMUM CENTER DITCH CROSS - SECTION NO SCALE In 6 u")� LLI �C Lf) W 15.6 Cultural Resources Assessment } ARCHAEOLOGICAL SURVEY OF ' V«STERN PORTIONS OF THE BOEING FAC'II.ITY, SEAL BEACH, ORANGE COUNTY, CALIFORNIA r i Prapared for. Deparmicnt of Development Services City of Seat Beach 211 Eighth Street Seal Beach, California90744 -6379 .repared by: KEA 3Enviro=ental, Inc. 1420 Kemer Boulevard, Suite 620 San Diego, Califomi a 92101 Jackson Underwood, Ph.D., R.P.A. May 24W Arms: 40 Key Words: Survey, We Pml isux- c Period, Shell Midden U.S.C.S. Quadrangle: Las A xnr tas TABLE OF CONTENTS r • i Eection a e FMCUTIVESUMMARY r ■ w r ► w r r . ■ w a ra• ► • • ■ ► • • ■ ■ • r ■ • • r • r ■ ■ ► r r • • • • • . • ■ r a r a * • ■ a • r a 1 i 11M0DUM0 ■ . ■ r ■ r w ■ • • ■ r a r • r r a ■ w • • a ■ ■ ■ r • . ■ . ■ ■ a ■ ■ ► r ■ r r ■ a • r • ■ • Pro'cct I]escription . ■ • r r ■ ■ • • a ■ ■ ■ • a • ■ • ► ■ r r . . ■ • . • • • ■ a r w . r a a r ► ■ a r w ■ ■ r • • • ■ ■ ► • ■ 1 Pro ■ = Personnel w + ■ • a • r ■ • • r • w . J • • ■ r r r a a • ► a + r a ► • . a ► • a • r . r r r a r • • r ► + r a . • r . a r Native AmericanParticiparian ►.•. ■.• w..r. ■......•.. ►•...• •..•.•rr.......r ■. Report Or r R2—PROJECT MaMNG a• ■ ■ a • • ■ a r a • • r a • •.• • w r■ • • a w a • ■ • r r w • • ■ • ■ ■ r ■ a +r • ■ • i ommen �i�i Se a ng • a ■ • a ■ • • ■ a . a • ■ • ► a ■ • . r ■ • • ■ r r • • . • a ■ • r • . • • • • ■ + ■ r ■ . a r a ■ • 7 • Geology . ■ 0 0 0 4 0 0 0 0 0 0 0 • • r r ■ ■ w ■ r 0 0 0 0 0 0 0 0 0 0 0 0 6 0 m o o • 0 0 0 0 e a s e 0 0 0 0 0 • a • • 7 Floraand Fauna - ■ ■• r a■• 0 a. a a►■•■ a a•■• a• a• a r r r r a• a a r a• a ■■•■ a a 0 a a 9 CulturalS C t L1ng _ • • _ r • • r • + a r ■ ■ r _ r . • a • ■ + . ■ r ■ r a a a r a ■ ■ r a r ■ • • a r a r • r • a ■ ■ • a r a ■ • i Regional Prehistory - Initial Occupiiiion • r a■ a r ■■ a■ r a r r a r a r••■. a• r• r r r a►■■•• a r 0 a a a• a r■■ r■ TjaeNfi gstonePeariod ...■.■. a... r.• •■.r ■..•a..a ■.•..•....r•.• ■.aa9 The Inter ediate Penod ■ a a a•■■• r a• r■.■ a r a■■ a a■ a a a a r r■• a w a•■ a a a• a a 11 4 The Late Prehistoric P enod . r.... a a a. r a r. a• r a. a ■ • a■. r • r ■ • w r a r a r r r • • ■ 1 � Ethnohistory a • ■ • • a • • r ■ • r • . a • • ■ ■ • a ■ ■ • r a _ r a • . r a • w . ■ ■ ■ w a • ■ • • r ■ a .. 12 Fhstoric Pe iod a ■ • a ■ ■ a a ■ a r ■ ■ ■ ■ ■ ■ r r . . ■ ■ ■ ■ a ■ ■ ■ a • • ■ r • a . ■ a . ■ w ■ • • • r r • ■ .12 Previous Research 0 0 a■a 0 0 0 0 0 0 0 0 0 _ a. ar. r•.■. ..r.. ■.... ■.••. ■.•.a.•..a. ■.a13 CHAPTER 3 —RESEARCH GOALS AND METHODS ......... r • • .... _ ... a .. a .. - ...17 Research Issues ■••■ r a *. w• r• r a•■• a• r. r• a w■ a• a r r w• r r r• a a r■ a■ r r r a a a■•. ■ a• a 17 y�y iy P /� f Survey Goa a ■ ■ ■ • ■ ■ ■ ■ a a ■ ■ ■ a r a • a a ■ ■ r ■ ■ • ■ a ■ • ■ • • • ■ a ■ ■ • • ■ a a a ■ a r ■ ■ r ■ ■ ■ a a • a • F ield Met.i.i►./'ds r • • a ■ a a ■ _ ■ ■ ■ • ■ a r a r + • ■ ■ a r • 0 0 0 0 0 0 0 0 0 0 0 0 • r ■ • a ■ • • r a a + ■ ■ a r r a r is CHAPTER 4- FDDINGS r • a • • • • ■ • • ■ a • r a ■ • • ■ ■ ■ • • • • a • a ■ ■ a • ■ a a a ■ a ■ ■ • ■ a a ■ a • • • a ■ a *21 f CHAPTER 5 - MANAGEUMNT CONSIDERATIONS r •r■■r• ■rr• ■w ■■ra ■a.a■.•a.•rr ■39 y Evaluation Critena •.•.... r...0 ■ 0 0 0 aaa 0 0 aa0 6 a0a0a0 0 aaaaaa0 ■ra0 a0 aa0 •aaaa ■39 REFERENCESa • ■ a • . r a ► ■ r • ■ ■ ■ ■ • ■ a • a r r a ■ a ■ r a a w r • a • r • ■ a • a • ■ • a a ■ a w • ■ • a ■ • • 4 1 s APPENDICES ` A R.esuaies of Key Personnel B Site Records C Ceramic Report Archaeological Survey of W esteem Portions of the Boeing Facilit Page i y LIST OF FIGURES Eir.ure Page IR • M a p ■ . • . . r ■ . ■ . . + . ■ ■ ■ *we* ■ • . ■ . ■ ■ a . 0 0 0 0 . . r • 0 0 0 0 0 . w • . 0 0 0 0 • . w . r • . • a 2 2 Proj a on Mai ■ . . . w r ■ • • . r ► .. a• s ■ r • • ■ . ■ • .. r . ■ r • r . w ■ • . . ■ . ■ • w • • • ■ • • . . . 3 • 3 Coast Survey of 1 873 ■ • ■ . r • . . • . . . w r w r • ■ • ■ ■ . r w • u • . • • a ■ . ■ . ■ . . . . ■ . . . ■ . . r . • . . . 4 4 Redwine'.? Landing Hill S u ■ ey of 1958 ► .. a s . . . • • ■ . . a • • a • ■ r ■ . a . . ■ r • . . ■ • . r . . ► I 19 6 Sites B, I B -2 . • • + • 0 0 0 0 a • . . . • ■ • 0 0 6 0 0 • • r • • . l% . ■ . ► w . ■ • . . 9 6 0 0 • *00 • 0 0 0 0 00023 7 Site B-3 r• ■*00••.00■ •• ■■. ■•••r.■ ■.• ►r •■.•..wr •...■ ■.....■■ rw... ►r.. ■•925 9 Site B-4r H ■ 0 ■ . . • . ■ a ■ . . 0 • ■ • 0 . . r . . . 0 . . 0 • 0 . ■ • • . 0 . 0 0 0 • • . ■ . 0 r . . ■ . • . . 0 r ■ 0 00026 9 Sites B4/H and B-5 i Historic Mate • . r . ■ r r • • . r r ■ . . ■ ■ • . • ■ • r ■ ■ . ■ ■ ■ ■ . . ■ ■ • r 2� 10 Site B • • . • • • . . • ■ • ■ ■ ■ ■ r r . . . ■ • . ■ • . ■ + . • • . ■ . ■ . ■ • • ■ ■ • • . . • . r r . r ... ■ . . r r r . . 3 10AS1teB6Locusl ... r......■•...........■.•• ..• ■.....,....... ■..a ■. ■. ■...31 1DB S1teB6 Locus 2 and LocUs3 ..........w. ■....■..■. ■a r■....••.r•r• ►w•a..•..33 • 10CS11e B6 Loc W7 . . . r . • • ■ r . ■ • ■ r ■ • • • • . • + ■ . . ► r ■ • . ■ ■ ■ • . . . ■ . • • • • ■ • . . a • r . . ■ ■ ■ r 35 11 Siu* B- 7andB- 8..•........ r.....•...■.•.. •.+•■.....•w•....r..a•w.. ■rw_37 LIST OF TABLES Table Pale 1 Tine, Clunate, and Cultural Chronologies ■ • • • . • • . • • • • ■ . • • . + . ■ • _ ■ ■ ■ . • ■ ■ . • ■ ■ • • 10 Page ii Archaeological Survey of Western Portions of the Boeing Facility 8 81 Y ��F� �� � EXECUTIVE SUNUqARY The City of Sea] Beach is conducting the environmental review for a �40 acre parcel currently owned .. . b the Boeing Company on the west side of their facility in Sea] Beach. The City engaged KEA Y EnvbvnmentaL Inc. (KEA) to conduct a cultural resources inventory of this propmly. Arec search of the entire City of Seal Beach was conducted at the Archaeological on Center at university of California, Los Angeles (UCLA) by Environmental Reseamh Archaeologists, a consultant to the City, in January 1991. This document entitled A .Baseline Archaeologiml Study for the City of Seal Beach, reports that a number of impm=t archaeological sites have been recorded on Landing Bill, just to the south and east of the parcel. No cultural resources had been identified on the parcel per se. KEA's fieldwork for the current prof ect took place on 13 and 14 Jwmary and on 21 January 2000. The project area was systematically walked by arcbaeolopsts uti g a 5 m (16 foot) survey interval. Avery low- density scatter of cultural materials was observed over most of the parcel along with specific localities of high density. Sites were identified on the basis of shell distnbution densities and soil color. The survey resulted in the discovery of seven prehistoric sites, one of which also contained an historic component, and one Historic site. The prehistoric deposits consist i manly of scattered culturally deposited marine shell fragments. Clam (CUone) and scallop (PectinlArgopectin) dominated the shell assemblages. A very few groundstone fragments and hammerstones were also noted. The historic materials consist ofvery low - density historic glass and c scatters in the northern pan of the project area. We suggest that the historic refuse deposits are not significant but that the prehistoric sites may be eligible for the California Register of Historical Resources and the National Register ofHistoric Places. KEA recommends that aresearch design be formulated and a testing program developed for the prehistoric sites in conformance with the Archaeol ogi cal and Historical Element of the City of Seal Beach General Plan. Alternatively, these sites should be avoided during future development of the parcel. Archaeological Survey of WWern Portions of the Boeing Facility Page iii 04WSWOMin Fa i&ft. Ap. "101 Ps w Page iv Arc3aaeolo&al Survey of Western Portions of the Boeing Facility / 331S�ea� F&%V% Ac. "d "" CHAP R 1 EliTRODU ON This document reports an intensive cultural resoircos survey of a 40 acre portion (the project area) of the Boeing Company facility in Seal Beach, California. PROM DESCRIMON The project area (Figures I and 2) is an undeveloped parcel m the City of Seal Beach, Orange County, fornia. The project area is not currently being ufilized, but it is apparently being plowed seasonally as a way of reducing the potential f re Im presented by desiccated ruder vegetation. Historically, the project area was once part ofthe Heilman Ranch. The main buildings of the ranch complex were located approximately 0.5 mile east of the project area along what is now Wes=ftmer Avenue. ' To the cast of the Boeing Company facility are con m,ercial operations located around the intersection of W ter Avenue and Seal Beach Boulevard. ximately �.6 mile cast of the APB project area is the Seal Beach Naval Wcarpons Stab on. The cumnt coastline is approximately 1.2 miles south of the project immediately south of the project area is a landscaping facility operated e beyond that is a residential community of Seal Beach. by the Jaunty of Orange, y ty S The project area lies es at the northern foot of a formation on known as Latnding Hill. Geographically, the area known as ding Hill 1s a low series of hills trending southwest by northe=. During prehistory, this landform was the most ent expanse of dry land in the area during the wet season, and there area number ofprehistoric sites recorded in this area. To the southeast is Anaheim Bay, serving the Seal Beach naval facility, and the Seal Beach National Wildlife Refuge, a presezved wetlands area The project area possibly looked somewhat like the present wildlife refuge d�a�ng the Iate prehistoric period. iacnediately west of the project is the Los Alamitos Rd g Basin, It small I Q, imant wetlainds area. 19orth of the prof ect area is Wes=inster Avenue and beyond that is a residential cornuaTMIty of the City of Seal Beach. Interstate 405 is one wile north of the project area. The San Gabriel River, forMMg the boundary between Los Angeles and ]range Counties is arpproxirnately 43 mile west of the project area. Prehistorically this river formed a complex of meanders and marshes encompassing what. is now Bolsa Bay, Huntington Harbor, Anaheim Bay, $ad Alamitos Bay (Figure 3). PROM PERSONNEL Senior technical review was provided by Dr. James H. Cleland, R.P.A. and Andrew York, R.P.A. Dr, Jackson Underwood, R.P.A. conducted the fieldwork and wrote the report. W. Patrick Geyer served as field archaeologist. Lori Lilbuan was the technical editor. Dan Brady provided graphics P-ct MqT0rL es of key personnel are included in Appendix A. Archeological Servey of Wextern Portions of the Boeing Facility Page I Figure 1 Regional Map No sea. Page 2 Archaeological Survey of Western Portions of the Boeincy Facility Op?S� ■•rim S.i.Re�fi��i� t Ret�i1�P tll.�rlD�D f r I., . —_ GOP ; ' 0W. Fsae 5tatic�• � ,� �.; • �� � � - h -:,, � � / ..ice =' '� • �000• o mmmftw Vim :ft.. op emir. M � /E t Fvr�traiiAt � 'i � � ►'~ _ �' • Ip z domob 4w r 491p ' � R@&o `are y 0.0 ....1,.. PROJECT a AREA •� . .6 Tow .dam M = 416 6bt f, 41 dir r 4� ,, • \ ♦ �!` ■�" w '► ►L r •. fir•• • �� ►• r rwrrr rr•.•.. i % ! +� r ,V0 rm Akinims ow So 40 48 VMS lip- 040 0 not • • .�,i f �' � � � tom, `- ,Z►c+.`_''rr`�r1 • � � i• re • •: �r . .rte •, , Alamit" 11 -tom $I � *eta ti '•�::•- ■ - -'�.�: i3 � �"' At � Wit;: ' �. •' i i ► - � ! y - . � � � � ONG C t her lobs ab -�a 3 �.. 1i t .�� �:.. do Am :` ; , •�� :;��y -,:�'' a 1. c . ■ 1 00 &:7 AV- .4 IL --BE-k . & &. -1 -6 % 0 .,. - =f L. thit. ow -dL Light- same: Las ►MMWaS Ana S8t Baum Ts 0013 mr1c, 1 IKA and yes . I "I Figure 2 Project Location Map 2= Fist '• Archaeological Survey of Western Portions of the Boeing Facility Page 3 am mar s.rn1lr, 2 Fm*ar Lwai m AW 1QM ..'. .' ~ - Wk mcm lb Op ip qw coo :lee A C-1 F I C 0 c E 'N pp; saw= com sumw Topmapirr IBM ?Ora Ftww 10 sows cm*' CAL Figure 3 Coast Survey of 1873 Z t i J NATIVE AMERICAN PARn CI PATI ON Robert F. Dorwn a served as Native American monitor for the project. Mr. Doram a has been acti v e m cultural resource work since 1991. He was founder of the Cabri elino/Tongva NACPRA Coalition and the Cabricao/Tongva Springs Foundarion and past chairman of Cabrieleno/Tongva Indians of . orma. REPORT ORGANIZATION This report is organizzd fol l awing the Arched l ogical Resource Management Reports (ARMR) guidelines (Office of �iistvri c Preservation vn 19S 9�. 'Ihes a guidelines defines provide a standardized format and suggested report content Chapter 1 es the project and its location. The and cultural setting arc presented in Chapter 2. Chapter 3 discusses research design, regional research issues, and provides a description of research methods. Chapter 4 presents the findings of this reseamh. Management considerations are presented in Chapter 5 . Archaeological Survey of western Portions of the B oeiag Facility Page 5 /O.�S�tiiar�� Ficiin �pr.+.�sf S�S►DD Page 6 Archaeological Survey of Western Portions of the Boeing Facility CHAPTER 2 PROJECT SETTING ENVMONINENTALSE G The project is located in what had been part of the floodplain and wetlands area associated with the San Gabriel River and Alamitos Bay the rivees outlet to the se& fine river is now encased in a concrete charnel located approximately 03 mile west. When it was wild, it ranged over a considerable delta- wetland area between the Bixby dills where the campus of California State University, Long Beach is now located, some 50 to 70 feet above wean sea level (AMSL) to the cities of Garden Grove and Westninster at approximately 30 to 40 feet AMSL some four miles to the east and Landing dill near the project area, about 35 feet AMSL. The low lying area in between including the prof ect area was primarily floodplains and wetlands. The project area has an elevation of only 5 feet AMSL. Geology The lands in and around the project area are composed of Quat=aary alluvium f loodplaim These deep alluvial/fluvial materials were deposited pnornarily by the meandering San Gabriel River (see Figure 3). The San Gabriel and other rivers of the Los Angles Basin frequently changed course throughout the late Holocene. wring historic times prior to 1867, the San Gabriel River flowed from the Wittier Narrows to j vin the Los Angeles River before emptying into San Pedro Bay. After 1867, the river resumed its cunnnt course between Landing Hill and the Bixby Hills to empty into Alamitos Bay. Througbout the Holocene, the San Gabriel River varied from emptying into San Pedro Bay in the north., to Bolsa Chica m the south.. Likewise, the Los Angeles River varied from e:znptying into what is now Ballona Creek wetlands (including the large wetlands area destroyed to create Marina Del Rey) in the north, to. A.larnitos Bay in the south. At other times, time rivers apparently deposited sand dams over their estuaries and did not e4upty into the ocean at all. According to Warner et al. t193611576]:17 -15): ...at the date of the settlement of Los. Angeles City [ 1751 ], a large portion of the country, from the. central part of the city to the tide water of the sea, through and over which the Los Angeles River now finds its way to the ocean, was largely covered with forest, int speorsed with tracts of nmrsh. From that tune until 1825, it was seldom, if in any year, that the river ed, even during the rainy season, its waters into the sea. Instead of raving a river - way to the sea, the waters over the country, f the depressions in the surface, and forming lakes, ponds, and m arshes.....no channel existed until the flood of 1825, which, by cutting a river -way to tide water, drained the marsh Iand and the forests to di The Coast Survey of 1873, ---- c MVI here as Figure 3, depicts tidal lands as a dark shaded area. This extends upstream to approximately the proj e�ct area. The area up of that also appears to be palaps brackish or freshwater. In this 1873 VI'ew, the New River passes along the west boundary of the Boeing property. It is irnpossl'bl a to know what configuration this area had during Archaeological Swvcy of Wemm Portions of the Boeing Facility Page 7 @"UWW ft f as o- Pp-vW "AW the Archaic [approximately 8,000 to 3,000 years ago), when the Landing Hill sites were occupied, but it is likely that the Boeing property formed transition zone between the Landing Dill habitation areas to the east and the Marshes to the west, where numerous resources important to prehistoric populations were located. Flora and Fauna Prior to urbani on, charmelization of the San Gabriel River and its tn`butaries, and ' ' g ofthe wetlands, the area contained a number of rich habitats, providing a wide variety of biotic resources for the prehistoric inhabitants. These included saltmarshlestuary, freshwater marsh, riparian woodland, herbland- grassland, coastal sage scrub, southern oak woodland, and beach - strand (Ascbmarm 1959). The saI habitats were found prmaarily in Anaheun �d Alamitos Bays to the west and 1 southwest These areas provided a wide variety of resources for prehistoric peoples. This included shellfish, sharks and rays, birds and a variety of plants. Even today, the r of the once vast r complex associated with the San Gabriel River still th ' t waterfowl . marsh p ousa�ads ofw�n en�ag During fieldwork, hundreds of geese (Branta ca is) were observed just west of the project area in the Los Alamitos Retarding Basin. The nearby beacb- strand environment also provided fish, shellfish and sea mammals. Inland from these saltmarsh/eshmry and beach environments, there were freshwater marshes fed by ofrshoots of the Sari Gabriel River and groundwater discharge, these areas contained willows, cattail, tule, sedges, grasses and various roots and tubers. CatWls, rules and sedges were important resoCurces prehistorically. They were utilized for house thatch, Beats, boats, l and basketry (Balls 1962; Blackburn 1963). Up along the river were extensive riparian woodland areas. These contained dense stands of willow, sycamore, cottonwood., and alder. The . higher area inland were probably covered by grasslands. According to Father Juan Crespi, a diarist with the Portola Expedition of 1759, the Indians burned these areas on a regular basis (Bolton 1927) _ to discourage chaparral growth and encourage grasslands (Bean and Lawton 1968, 1973). Native bunch grasses formed a staple of the Native diet ror to the Spanish con q uest (Bean Shi ek � 1978; Luornala 1978). Also in these upland environments, were abundant deer, rabbits, ground squirrels, and other small mammals. CULTURAL SETTING The following discussion briefly descn`bes current understanding ofmajorprehistonic, ethnohistoric, and historic developments in the vicinity of the project area, Regional Prehistory The most inf luentia l syntheses of the prehistory of southem California are.those proposed by Wallace (1955) and Warren (1968). Wallace's sequence, perhaps the most widely used by Orange County archaeologists, identifies four cultural traditions, or horizons, for southern California: Early Main, from initial occupation to about 7,500 years before present (B.P.); the Millingstone Horizon, from Page 8 Archaeological Survey of Western Portions of the Boeing Facility O�QSj �a�+� FiriM �pr.+q� �s+OiD about 7,5O0 to 3,040 B.P.; the intermediate, from about 3,040 to 1,000 B.P.; and the Late Prehistoric, fro m 1 , B.P. to A.D. 1800. While Wallace's construct continues to offer a useful framework for lo gists working in this region, it has seen some recent modification. Mason and Peterson for exam le, se enlarging the gstone Honzon. They posit 8,040 B.P. for the (1994� P Pr°P° inception of the ivffn one Ho�on, and 1,354 B.P. as the 'on of the luternaediate and the GP � anccp Lion of the Late Prehistoric. chronologies are summarized to Table 1. Initial0 pation The initial occupation of coastal southern Califon3.ia appears to have occurred between 11,OD0 and �P . S 04 ears ago (Jones 1992). Although both Wallace (1955) and Warren (1368) believed that these � Y g is were highly mobile foragers focused primarily on the hunting of a 1. game, early - . many sa�chaeolo ca3 components datmg to this period attest to the intensive and c use of Po shellfish and other marine resources at this time (ErIandson 1994:6). Indeed, as Brlandson (1994) rots out, data from many early Holocene sites suggest. most of the protein and energy needs for these early groups was provided by the sea, maldng theca "My riti=7 as defined by Yesner (1980) . Although little is known of this period in Orange County, a possible pre- Millingstone co en component has be identified at CA- 0RA-(A at the head of Newport Bay (Drover et al. 1983). This component contained si cant evidence for shellfish collecting and some evidence for f -Ching and bird proeur=ent, suggestng a more diverse subsistence focus than previously reco The Millingston a Period Components dating to the period following about 8,000 B.P. allace's Milli.�agstone Horizon) are much more common and appear m a variety of settings. As mnplied by Wallace s tern, these sites are marked b Y abundant undstone assemblages, thought to imply a reliance on hard seeds. Along the coast, these sites also contain evidence for the use of a wide variety of coastal resources: at CA- ORA -64, for example, the Millingstone component yielded the remains of 15 species of shellfish from several settvags, 8 species of fish, 21 birds, 9 terrestrial and �narme marnmalsand 2 reptiles (Drover et al. 1983). While shellfish remains were abundant in this component, Drover et al. (1983) concluded that hunting probably contributed more to the diet than shellfish at thus time. Nevertheless, evidence is abundant for significant shellfish use, probably reflecting the maturing of the local estuarine environments. The relatively substantial deposits and diverse artifact assemblages often seen at Millingstohe horizon sites has led some researches to argue that many of these sites represent residential base c=ps (e.g. Glassow et al. 1988; Drover et al. 1953). Based on the eP gstone omponent at CA- ORA --64, Drover et al. (1983) proposed a "central -based wandering " �lernent system Featuring regular group movements from a centrally located residential base. More recently, Mason and Peterson (1994) have proposed that Millingstone settlement on the Newport Coast f high residential mobility among a series of redundantly occupied camps looted at resource paxches. Archaeological Survey of Western Portions of the Boeing l~aciiity Page 9 c Table L Tirane, Climate aad Cultural Chronologies FjGt4aV&! vearns I be i Cwwrd a� ap � An� . ��� ���� s•�.t� f Orys • M) .■d s mwfgr fq*C ROpft 19M 0 MwM 193s (worms +9") Yuewn M Horizon IV � _.�cuhwc .w Lat Prc�ix�r+r spp ism] sba Onumna YURM ti I;amoin1 x«�wn w I EM btim Harimm U TaKWoa M iLloAt Lot) MM cep "Ok toddy g !lP ",. r►� 141u� ; Liu Pithism SWUMs i Arckak %pair dins s y s l r s � f Z 1 I i r ! I i Lake A im-C � r Page 10 Archaeological Survey of Western Portions of the Boeing Facility *0-MJ i.wWC F.eu' RPL"d VS= Fog FqSAgwwpwbM _"— Ism v SOO omrs w '' AD �p 94 La Jvib n 3wo 1000....1 Cob= Atbti 44M i — Ad d Tame: ' 3OW Od pcldc L, -.— 6000 .�°. 5crspef- b"M Ls Jolla I � # t i Finka Athd POiM �iC:cd H�a1 Cut= ..�.�. 7000 �� �� co , w a Dib O swam r &Kiq 16000 t lop ! sr _ � Tri~ie Bednx � r i Sw 1 *_ Cftw"Kia Cw n" f � w & 3 j ww ■� rM ' j 1OM 1 x«�wn w I EM btim Harimm U TaKWoa M iLloAt Lot) MM cep "Ok toddy g !lP ",. r►� 141u� ; Liu Pithism SWUMs i Arckak %pair dins s y s l r s � f Z 1 I i r ! I i Lake A im-C � r Page 10 Archaeological Survey of Western Portions of the Boeing Facility *0-MJ i.wWC F.eu' RPL"d VS= The Intermediate Period The period beginning about 3,4DD years ago, corresponding to Wallace's (1955) Intermediate Honzon, apparently save important settlement, subsistence, and technological changes. Many of these wean to sib intensification of subsistence stratcgi es to odate a growing population (Erlandson 1994:47). 'these include an increase m acorn use as indicated by the gVearance of the mortar and e; elaboration of f shing technology, including the inception of the shell f shook (Raab et al. 1995); and more ab dant and diversified hoaxing equipment (Erlandson 1994). Mason and Peterson (1994) note an apparent disuse of the Newport Coast at this tune, suggesting that it mi t reflect a shift to a more sedentwy and territorial settlement Whey further suggest that thiS chaaage could be related to the arrival of Takic (Shoshonean) speaking groups from the east. A final point relating to population growth and intensified settlement and subsistence on the coast of southern California relates to the ovamll health of the population: Raab et al. (1995) smmmarize numerous osteological studies for the northern Cbannel Islands which suggest a considerable e in disease and violence between 3,300 and 1,650 B.P. Although similar data are not available from Orange County, the overall coincidence of these trends with other evidence for intensif cation suggests a general pattern of resource and population stress at this time. The Late Prehistoric Period Sometime between 1,500 and 1,300 years ago, the p began to Cmezge which seer to characterize the ethn ohi stori c Luiseno, (including the eno), Gabri elenio, and other Shoshonean t speakers. This period, the Late Prehistoric as defined by Wallace (1955), is characterized by generally high population densities and elaborate social, political, and technological systems some of which probably derived from the CLium ash just to the north. Economic systems continued to diversify and intensify during this period, with the continued elaboration of trade networks, the use of shell -bead currency, and the appearance of more labor- intensive, but effective technological innovations. This focused particularly on the development of marine es (Erlandson 1994), evident not only them amounts offish remains in late archaeological deposits (e.g. Raab 3' g et al. 1995), but in the continued investraent of Labor in the development of effective fishing technology (Glassow 1950). Several settlement changes in coastal Orange and southern Los Angeles at this tinge: the San Joaquin Hills abandoned during the Intermediate ate = counties are apparent q g Period, were led, while Huntington Beach Mesa and $olsa Chico Mesa t+o have been aband .oned. Some of these settlement shifts to have resulted from the siltation and 4 degradation of coastal lagoon habitats, and there is widespread evidence for climate- related disruptions. Intensif cation is believed to have continued, and settlement at this (cone seems to have revolved around a relatively limited number of permanent settlements that were located centray with respect to a variety of resources. Associated with these prinmy settlements were a variety of Bunting and gathering areas that would be occupied seasonally nand Peterson 1994). -. Archaeological Survey of westea Portions of the Boeing Facility Page 11 SO-W)&mwV Facilry *pLu d "M Ethnohistory According to Kroeber (1925) and Beata and Smith (1978), the area now known as the City of Seal Beach was once occupied by the Dative American group that, after Spanish colonization became lCnow�a as the Gabrielefio. These people were so designa by the Spanish, b ecallse they lived in the vicinity of Mission San Crabriel. (Now In the anthropological lit , the spelling of this group is either Gabrielefio or the Anglicized version Gabiielino. Since it derives from the Spanish, the spelling ``Ga eleno" is utilized herein. This spelling is also consistent with the names of other California Mission radians, e.g., Diegueuo). At the time of contact with the Spanisb in 1769, Crabrieleno territory extended from the area just north ofprescnt -day San Fernando Mission to Aliso just south onagm. Beach. Their east -west boundaries extended from T'opanga Canyon to t San B ' o (Bean and Smith 1978; Kroeber 1925). To the south, lay the territory of relaW Native Amcdcan clans that became known as the Juaneao (Kroeber 1925). The Gabrielefio, and the closely related Juaneno, Luiseflo, i abuilla, and Cupefto spoke languages Placed within the T'akic family of the Uto-Aztecan stock (Shipley 1978). This group is also known = as the Southern California Shoshonean speakers (e.g., Kroeber 1925:574). Anthropologists differ in their estimates of the precontact population of these Southern California Shoshonean speakers. The Gabrielefio are thought to have had some 50 to 140 villages with an average population of from 50 to 104 persons each (Bean and Smith 1978:540). Therefore, the Gabrielefto, mayhave had a pre. contact population between 5,040 and 10,044 people in the Los Angeles basin, and the islands of San Nicolas, Santa and San Clemente may have held several hundred more. The Gabrielefio lived in P ` large villages situated near water sources, with secondary hunting and gathering camps occupied seasonally. Houses among the Gabrielefio, were circular, sezni- subterraneaa, domed structures covered with tule or fern. According to Costanso, a diarist with the Portola Expedition of 1759, some were as large as 50 feet in diameter, housing several families Creggait 1911)0 Anciilarystru such as sweathouses, m. huts, and ceremonial enclosures were also used. Subsistence focused on hunting, erin and fishing: large m s such as deer were hunted g� � g g with bows and arrows, while small game such as rabbits, squirrels, and birds were also taken. Groundstone unplements, prunarily ono sties and mGa nostmetates, were used for grinding both and plant foods. Trade was also an unportant means of village contact and the distribution of goods, and focused on shell beads, dried fish, sea -otter pelts, steatite, deerdim and various ds of seeds. The Southern Californian Shoshonean tn`bes were highly territorial, identifying and defending specific boundaries for their hunting and gathering areas. Historic Period The Illlission San Gabriel de Archangel was founded in 1771. It seams rely that the project area was largely doned by the G abrielefto soon after the founding of the pueblo of Los Angeles ten years later in 1781. The once prosperous Gabrielefio, their rich culture destroyed and their numbers Page 12 Archaeological Survey of Western Portions of the Boeing Facility ea.asswe� F.e•�i�1lpe -rr+ srs►vo drastically reduced from disease, were soon reduced to providing cheep labor on the margins of pueblos and ranchos of New Spain or slave -like labor at the missions (Phillips 1984 ). In 1521, Mexico won independence from Spain and the new Mexican goverment pursued a policy of open trade that simulated an unprecedented prosperity among the rancheros. In 1 533, the } Mexican government secularized the missions. Half of the MISS) on lands were to go to. the Indians, but the b eonin hide trade over the previous 1 D years or more hard made ranching a relatively � g Pn 3"e g y iuc FIR �ivc enterprise, $nd for the first time, land . in California had value. Also at this time, the Mexican government began . hundreds of land grouts in an attempt to encourage settlement. Utimately, the Dative American population received NiMally none of the land promised to thew as part of the secularization. The American Period began with the end of the Il 'Can War and the r Tready of Guadalupe go- One of the early Spanish soldiers who had made the march from Baja California to help found San Diego in 1769 was Jose Manuel Perez Nieto. He retired from the army and settled in the new pueblo ofLos Angeles. By 1784, he had obtained a grant fora large tract new the San Gabriel Mission from his former commanding officer, Pedro Fages, who by then was Governor of Alta California. In 1794 �Tieto obtained another grant from Fages, called Rancho Los Coyotes, bringing his _..Wags up to over 300,444 acres. In 1795, he lost almost half of his land in a dispute with the Mission, but he retained some 167,004 acres. This was still the largest Spanish or Mexican grant m California. It included the area that would become the current Boeing P . Jose Manuel K eto died in 1944 . - (Lavender 19S 7) and ev y the property came under the control of Abel Stein's, a New Englander, who arrived in the area in 1829. Sheep and caffle ranching do the ec morny of the area in the mid -19th century despite occasional floods and droughts. As time went on, agricultnal production wally became Havre important~ Anaheim Bay took on importance as a port for shipping produce from the German colony at Armheim. What became known as Bay City also gamed importance as a resort area. This became the incorporated City of Seal Beach in 1915. Like the rest of California, the area was subject to cycles of boom and bust through the late 19th and early 20th centuries. Over the years, the large landholdings changed hands and parcels weave sold off for residential and commercial development (Clevenger and Crawford 1997). World War II brought the dredging of Analieirn Bay, laying of rail lines into the area and development of the facility now lmown as Seal Beach Naval Weapons Center. The Cold War brought aircraft and rocket production facilities into the area, whi cb today as the Boeing facility. The co nuruty of Seal Beach now enjoys a diversified economy based largely on agriculture, light industry, and tourism. PREN IGUS RESEARCH A records search of the entire City of Seal Beach was conducted at the Archaeological Infomaati on Center at university of California, Los Angeles (UCLA) by Environanental Research Aychmiogists, a consultant to the City, in January 1991. This document, entitled A Baseline Archaeological Study . for the City of Seal Beach (Stickel 199 1) was part of the effort to create the 1992 Archaeological and Historical Element of the City General Plan. Archaeological Swwy of Western Portions of the Boeing Facility Page 13 The most substantial archaeological research in the vicinity of the proposed project was undertaken on Landing Hill. In late 1954, Professor William J. Wallace, then of the university of Southern California (IJSC) was notified by one of his students that several prehistoric sites were endangered by develoginent of the Landing Hill area Jack Collins, the student who first called it to Professor Wallace's attention, RogerDesatitels, who would go onto form Scientific Resource Surveys (SRS), and Peter Redwine surveyed the area. They discovered and documented 10 am cl 20010sical sites; Redwine producxd a report of the survey in 1958. Evidently, portions of the Redwine survey are quite close to the project in the area just south and east of the Boeing track (Figure 4). However, dim ' g documents,, it does not appear that the Redwine survey encompassed the Boeing jesoperty considered here. However, some confusion exists Lurouding the Precise locations of the Redwine series of landing Hill sites. Much of the area has been A UWALfigured into terraces by mass grading acrd developed into residential housing. York et a1. (1997) reviewed the previous of the Landing Hill area in some detail; the interested reader is referred to that document for a more ensive trcatnaent of the Previous research of the area. One of the sites recorded by Redwine, CA-CRA -265 is ed just west the project area, while another, CA-ORA -264, was recorded south of Adolfo de Lopez give adjacent to the southernmost point of the project area. CA,,ORA -265 was called LH1 D by Redwine. From the surface of the site, he recovered whole or fragments of 12 macros, 5 mortars, 2 pestles, 1 medium -sized hamnaerstone, 1 Pro) ectile point, 2 blades, l scrapez plane, I scraper, l steatite bowl, l charmstone, I incised stone, 1 fossil bone, 1 u ' ` #lake ("worked chip"), and 2 rubbing stones. From site CA -CRA -264 (LH9),, Redwine reported the following surface assemblage: 3 gstones, 14 manos, 2 mortars, 6 pestles, 3 medium -sized hanrtnnerstones, I polishing stone, I comal (cooking slab), and 1 utilized flake. A Pacific Coast Archaeological Society site form also lists a pelican stone, a cogged stone, and a medicine tube from a private collection. These arc rare, P � P but thought to be ` `c of Late Prehistoric deposits. Redwine also noted five fragments of 'human bone, possibly representing two individuals (York et al. 1997430). in subsequent excavation, Desautels revealed the existence of a subsurface cultural deposit as deep as 140 cm. Several sites tested in the area (CA,-ORA -264,,,260, and - 2631852) had non -shell brazing midden deposits underlyingthe shell midden, suggesting a dramatic change in subsistence (York et al. 1997). In 1996 Stickel 1996 conducted a detailed survey of the HelnRanch pmperry south o the Boein � 1 of CA-ORA -265 outward from the Red le and expanded the boundary vine boundaryby a considerable distance, reco -b IM g lover density shell deposits within the confines of the site. Stickel did not , examine the Boeing pr Opeftyt but by projection the bounds of the lower density scatter around CA- CRA -265 would atone tae have extended into the Boeing parcel. However, i s pat of the Boeing property appears to have been graded (cut) during; co on activities. These T =__d-lrlg Hill sites near the project area are relatively complex and probably represent long- term seasonal villages or base camps. 'their elevation between 25 and 35 feet AMSL. would allow occupation during the wet season, whereas low lying areas lice the project area, averaging about five feet AMSL, would be inundated during wet winters. The complex assemblages and deep middens Page 14 Archaftlogical Survey of Western Portions of the Boeing Facility A0.0 3weeft Farm Ow"a Y-11OW FIGURE 4, REDWINE"S LANDING HILL MAP mm ARCHAEOLOGICAL SURVEY OF WESTERN PORTIONS OF THE BOEING FACELITY, SEAL BEACH, ORANGE COUNTY, CALIFORNIA PAGE NOT PROVIDED THIS PAGE IN REPORT CONTAINS SENSITIVE INFORMATION REGARDING ARCHAEOLOGICAL SITES, WHICH LS CONFIDENTLAL IN ACCORDANCE wi DERAL AND STATE LAWS. THIS INFORMATION IS NOT AVAILABLE TO THE GENERAL PUBLIC , ip i i i of Landing Hill sites contrast with typical floodplain occupations. The latter tend to be low- to moderate - density shell deposits with rather few other cultural materials. PreWstoric cps in low- lying areas would premi nably represent num erous short -term occupations focused on collecting resources from the surrounding floodpiain en virornnent. Important resources in this area might include v rious roots and tubers, , tuIM sedges, and, of course, shellfish. Collecting these kinds of resources may rewire the skil3fui use of a digging stick, but the kinds of stone and bone tools that tend to survive in an archaeological deposit are not necessary and they are not often encountered in these sites. I Page 16 Archaeologica3 Survey of Western Portions of the Boeing Facility �331tarrs Firibe►• xyc.�gad J13" CHAP R 3 RESEARCH GOALS AND ME THODS RESEAR ISSUES The archaeological record of the southern California coast has yielded a general outline of culuaral develvpinents over the course of the Holocene. However, our understandings of many basi c cultural systems remain thin and sketchy. In addition, explaining the major cultural changes m the course of southern Califomia prehistory has proven to be very in le. Prominent among the issues facing the regions archaeologists are problems relating to the effects of en ' ental change, the mergence of sociocultural complexity, population movements (e.g., the Takic wedge), and ethnicJEmguisticeffiliations. How local archaeological research might make a contribution toward the resolution of these issues has been presented in regional research designs (e.g., Mason 1987; Mason and Peterson 199x4) and in local Seal Beach research reports (e.g., Underwood 1999; York The inter et al. 1997). Tested reader is referred to those docamnents for a detailed discussion ofregional and local research issues. SURVEY GOALS The major goals of this survey are modest and pragmatic. Isere we attempt to identify and record all extant historical or archeological sites within the project area. Based on the site's surface manifestations, we describe the site's horizontal distn~bution, assemblage, features, period of occupation, functions within the economic and gettl ement system. Tentative assessments each site's integrity, smentific potential, and significance are offered. Further research (a testing phase) is typically necessary to conclusively assess a site's integrity, to document the presence or absence of subsurface components, and to determine the site's research potential and the kinds of research issues that =night be applicable. A testing phase will typically include an evaluation of the site's s* Viti cance and its potential for no ' on to the National Register of Historic Places under Criterion D. Our specific expectations going into this surveywere that sites in the low -lying areas around Landing Hill would be somewhat similar to the sites documented on I.,e riol ng Hill but with less complex assemblages. That is, they would probably date the Archaic or Middle Horizon, they would consist pfimaffly of ' g densities ofrnarine shell, fly Chione and Argopectin, and there would be relatively few formal artifacts and features. The project area„ at an elevation of only five feet, would be' An ed duri �LD MIETHODS As mentioned previously, the project area consists of a vacant field that had been plowed, ples y to reduce the potential f= hazard posed by dry brush. Little vegetation had regrown on the parcel, but of mustard, various grarsses, saltbush, sweet fermel, and tumbleweed were occasionally noted. The parcel seems to have been subject to a minor amount of grading and leveling. There are tbree cast -west trending a ditches that cross the property (Figure S). Ground visibility was generally excellent during the fieldwork. There are small areas where thick grass is growmg and mulch and plant clippings cover apart of the south portion of the parcel making surface vis ility difficult in these localized areas. As we began to survey the area, it was evident that vftuzally the entire parcel contained a very low - density prehistoric shell scatter, e.g., one specunen for every 10- 15 square meters. This is ly a result of the plowing referred to earlier. However, we were able to define areas as sites based on shell concentration densities and soil color. To conduct the fieldwork, the team formed a line with a survey interval of 5 m (about 16 feet) between archaeologists. The field team walked the project area m a systernatic fashion the soil for signs of human occupation. When artifacts or shell fragments were observed, the h team dispersed in an attempt to identify the boundaries of the deposits. when these boundaries were identified, they were flagged. Then the tears moved on to continue the survey. Field ex 'on of shellfish rcrnam focused on identifying whether or not the deposits were . This included ex ' ' gthe assemblage for fire - affected ens and looldng at the size distn 'bution. shell is concentrated toward adult, edible -sized ens, while collections contain young, adolescent and adult . ens m a relatively smooth distribution curve. Also specif c species utilized as food resources will vastly dominate any prehistoric cultural shell deposit; y occurring, non - cultural samples contain species that were not targeted as food resources. Finally, naturally occurring shell deposits are often eroded and smoothed by tidal and surf action, while cultural shell typically has sharp breaks. After the parcel had been surveyed, we began to record the sites that we had encountered. Since the sites consisted primarily of prehistoric shell, (or in two cases, historic glass sherds), we believed it would be helpful to obtain some idea of the relative densities of these items. We obtained this by oudining a 2 by 2 m square in the apparent center of each posited site. The number of shell fragments (or historic glass and 'cs) was noted in each 1 by 1 m square. From that central 2 by 2, counts were taken every five meters in each of the cardinal directions until the shell count dropped to zero. The soil in some archaeological contexts becomes darker than surrounding soil because of the _ h=rascd organic material deposited during human occupation overtime. This darker soil, called-. rnOd is he ful in identi to 'cal sites in southern California. Therefore, re, Munsell soil color samples were taken in the center of each site, and index samples were taken in what we believe to be undisturbed, non -site areas nearby. In the discussion of the survey results below, the soil color is followed by a alpham eric Munsell designation (e.g., l OYR 512). Using Page 18 Ardaeologicat Survey of West= Portions of the Boeing Facility SO."JANOW FM" r JOL"d Adow FIGURE 59 STYE LOCATIONSm, ARCHAEOLOGICAL SURVEY OF WESTERN PORTIONS OF THE BOEING FACILITY9 SEAT. BEACH, ORANGE COUNTY, CALI[FORNIA PAGE NOT PROVIDED TffiS PAGE IN REPORT CONTAINS SENSITIVE INFORMATION REGARDING ARCFIAEOLOGICAL SITES, WHICH IS CONFIDENTIAL IN ACCORDANCE WITH FEDERAL AND STATE LAWS. THIS INFORMATION LS NOT AVAELABLE TO THE GENERAL PUBLIC Muiisell d esi ' ons rovi des the reader with Stan color terms for facilitating soil P � co2nparisons. A sketch neap of the site was ina,de, forms were fired out, and photographs were taken. Sites were recorded on s=dard Dqwtment of Parks and Recreation (DFR) 1995 edition fortas, i.e., Primary Fora DPR 523A and Archaeological Site Record Forth DPR 523C. Site sketch nazps were roduced on fora DPR 523M Photo& apns were also made of each site. Copies of these forms are found in Appendix B. No couec ions were i"iiadex so laboratory work was unnecessary, and no afti curation an raagements were require& Notes, photographs and other documents will be CLU at K.EA Environmental, Inc., San Diego. z E f t Page 20 Archaeological Survey of Western Portions of the Boeing Facikty M .0 AmV Fire Jkp "W J*W CHAPTER 4 FINDINGS The soils encountered during this surveywrre composed p . • ly of dark greysiilts, clays, and very f ne sands. This kind of deposit is typical of low energy, floodplain deposits. Coarse sands, pebbles, mad cobbles require much hi gb er energy water flow for twisport, so they drop out far UpstL Q4W, It is reasonable to assume that any pebbles or cobbles encountered in this en ' ent were brought here by human agency (modern, historic, or prehistoric). while walking over the , it was readily apparent that some amount of g hand taken place. Three, snail, east -west oriented drainage canals had been cut through the property. In addition, a Eger operated by the Orange County Flood Control Dlstrlct passes through the northwest collier of the parcel. we also encountered fill dirt in several places. This eared to be a sup erf cial layer of orange -light brown soil with very little organic content typical of construction f ll. It was relatively easy to distinguish from the dark, highly organic silty loam native to the local wetlands environment. when fieldwork took place, the parcel had been recently plowed, so ground visibility was excellent. After fieldwork had been completed, I&. George Peterson of project Dimensions, Inc., the pro * ect manager, provided us with a series of aerial photographs of the area. These photographs date from 1955 and 1957. They depict the existing Boeing buildings under construction and orange -light brown fill dirt covering construction areas. A close a 'on of some of these photographs also reveals what appears to be a dark - colored, underlying soil in di runed areas, for eaIar ZIP] e near Building 91. This suggests that the fill may have been quite than in places. 'rte photos do indicate that most of the parcel was subjected to some degree of ground disturbance during construction. Vegetation was completely cleared and vehicle tracks are ubiquitous, indicating previous g. It is not. clear fmm these documents eats to what depth this disturbance reached. Prehistorically, the area was probablytraversed by numerous small drainages, which changed course from time to time, winding between small mounds or hillocks. These small drainages were probably f lied in the late 19th and early 20th centuries to facilitate use as farm land,, but the land as we encountered it was not actually leveled in areas away from the buildings. The plowing that began as a g practice, now continues, apparently as a weed and fin abatezacnt strategy. Plowing impacts the archaeological sites of hunters and gatherers, but it does not destroy thern. In general, artifacts are dispersed horizontally and vertically through the soil column in the plow zone Menrea the plow s, typically 30 to 50 cm below the surface). How far items travel and under what conditions, the situation called in archaeological parlance "plow -Zone ics," is far front._ clear (Dunnel 1990; L warch and GBrien 1981). One would expect the top 30 to 50 = of the soil column at this parcel to become mixed by this plowing, so that if there were a sup erfi cial layer of fill on top of dark, ly- occurring soil, over tinne the dark organic soil would ominat e the surface, and small amounts of fill would be found Archaco3ogica Survey of westc� Portions of the $0CM9 Facility Page 21 M -Wit"n fig►• ARAW sow down to the bottom of the plow zone. One would probably find some fill mixed with natural soils at an even greater depth due to the burrowing activities of rodents. Likewise, if there were a layer of fill deeper than the plow zone, portions of the underlying natural soil (including artifacts) might be pfd up into the fill spratum and to the surface by rodent activities. This parcel is home to numerous ground ls; theme arc wire cx during the survey. In the absence of archaeological test units, this provides a small opportunity to look at soil strata and sub . we were able to detect subsurface archaeological materials in several places, discussed below. der ground disturbances were also exaauned,, in this case, drainage canals. SmaII amounts of archaeological shell were noted in and near the three small vast -west treanding However, the walls had eroded and slumped over the yeus, and no exposure of the soil Column txisted. If a testing phase were to occur, one might down the walls to remove the eroded rnaatc dal to reveal a section of the soil column and help resolve questions relating to site disturbance and fill. In the canal in the northwest cotncr of the parcel, however, there was a clean, velical exposure in the canal wail. A dense strarmn of shell was noted in this wall (Site B, 41H) well below the cummt soil surface, indicating the possible presence of a buried archaeological nent. hnportant questions rcaxain about the di stn'bution and depth of fill deposits over this parcel and their relationships to the archaeological sites recorded here. To resolve these questions, it is imrportant to conduct a Pmt of logi cal testing to sample sigaifl cant portions of the soil profile in a number of places over the parcel. This is well beyond the scope of the archaeologi cal survey reported. herein we detected fill in a number of places during the. survey by observation of soil surfaces. The sites discovered in the project area consist of low-to moderate- density shell deposits composed primarily of fragments of Chione f lucxrf rages, C. undatella, bay clams with no common tee) and Argopectin aequisulcatus. (speckled scallop). A few specimens of Crepidula onyx (slipper shell), Poiinices reclusianus (southern moon snail) and Ostrea lurida (native oyster) were also noted in some sites. The native oyster and slipper shell grow on rocks in protected waters of the low to middle tidal zone. Chibne and Argopectrn grow primarily in mud and sand flats of bays and estuaries (Hinton 1954 Seven discrete shell deposits, one with ahistoric component, and one historic deposit were identified during the systematic survey of the project area. They were given field designations: B-1, through B-S. in keeping with the California Office of Historic Preservation guidelines (1995), prehistoric sites with historic components are designated by EH (e.g., , while historic sites are designated by an H (e.g., B-SH). Site B-1 is a low - density shell deposit COMPO e�i In y of fragments of Crane (a small bay clam with no cor mon mane) and Argopectin aequisulcatu3 (speckled scallop ); both of these species are commonly found in Archaic period shell maddens. The highest density was nine spe=menslsquare meter. The site measured approximately 13 m diameter (Figure 6). The site soil was grayish brown (10YR 512). Nearby sterile soil was a light brownish gray (10YR 6/2). These soils were composed Page 22 Archaeological Survey of Western Portions of the Boeing Facihry a)-o3 rwiiVY PWMW "M FIGURE 61 STIES B -1 AND B -2 - ARCHAEOLOGICAL SURVEY OF WESTERN PORTIONS OF THE BOEING FACI]LITY, SEAL BEACH, ORANGE COUNTY, CALIFORNIA PAGE NOT PROVIDED THLS PAGE IN REPORT CONTAINS SENSITIVE INFORMATION REGARDING ARCHAEOLOGICAL STYES, WHICH IS CONFIDENTIAL IN ACCORDANCE WITH FEDERAL AND STATE LAWS,* THLS INFORMATION IS NOT AVA11LABLE. TO THE GENERAL PUBLIC { } primarily of indurated silt, with small amounts of f ne sand. It was not possm�ble to determine if subsurface deposits are likely to exist. Site B -2 is a large, low -to moderate- density shell deposit composed ' ly of fragments of Chione mdArgopecfix A few specimen s of Crepidu.Ia on [slipper shell] and Ostrea lurida (native oyster) were also noted. The highest density was 22 ' enslsqu= meter. The site measured sppro ' ly 52 m north -south by 58 m east -west (Figure 6). The site soil was dark grayish brown (1 OYR 412). Nearby sterile soil was a light brownish gray (1 OYR 612). These soils were composed . ` y of indurated silt, with small amounts of fine sand. An 'on of ground squirrel holes suggests that this site does have a subsurface component greater than 30 cm deep. Site B -3 is a low- density shell deposit sed Pn 'ly of fragments of Chi-one anti Argopectin. Some ens to have been burned. The highest density was 12 10 ens/square meter (Figum 7). The shell count increased as one approached Parking Lot 2, just east of the project area, suggesting that parts of the site may have been by the pa*ing lot, and s by Ww=dnster Avenue as we11. The portion of the site that r=ains visible measured approximately 32 m northeast- southwest by 20 m southeast- northwest (Figure 7). The site soil was grayish brown (1 OYR 512). Nearby sterile soil was a light brownish gray (1 OYR 512). These soils were composed p . ' y of indurated silt, with small amounts of fine sand, typical of low energy, floodplain deposits. An examination o f ground squirrel holes suggests that a subsurface component greater than 30 cm deep exists at this site. Site B41H is a multicomzponent site consisting of a surface prehistoric shell deposit, a subsurface shell deposit and a surface historic deposit. The prehistoric surface component consists primarily of fragments of Ch one and Argapectin. A few spe=cns of Crepidula onyx (slipper shell) and l Ostrea lurida (native oyster) were also noted. The highest observed density was 5 specimens/square meter. These prehistoric shell fragments appear to continue under Westninster Avenue just north of the project area beyond the proj ect area into the drainage canal and across the drainage canal off the northeast corner of the parcel. The prehistoric portion of the site measured approximately 53 m east -west by 33 m north -south (Figure 8). The site soil was pale brown (1 OYR 6/3). Nearby sterile soil was a sirnlar color. These soils were composed 'ly of fine, loose silt, with small amounts of fine sand. Aner2TMination of the w alls of the drainage (out of the project area) revealed the presence of a substantial subsurface component separated from the surface deposit by a sterile of $pproximately 70 cnL This component to be a lenticular s composed ofperhaps 150 0 or more sp w=enslsquare meter. It appears to be only 10 to 24 cm thick. However, it was dif l�cult to ` because the a canal was partially mmored with cobbles and boulders in this area The `c component consists 'ly ofm nail sherds ofhistoric bottle glass (Figure 9). Colors -. include solarized amethyst, mnber, clear, and light green. Most glass sherds have caliche stain. The historic component also contains a few small sherds ofhistoric cem ics. There is no indication that the historic w eat has depth. This historic refuse scatter maybe associated with the Hellman Ranch, approximately 0.5 mile cast. Page 24 Archaeological survey of Western Portions of the Boeing Facility �•QilWei� Fieifi►r �r.w'd J�SAO FIGURE 71 SITE B•3 - ARCHAEOLOGICAL SURVEY OF WESTERN PORTIONS OF THE BOEING FACILITY, SEAL BEACH, ORANGE COUNTY, CALIFORNIA PAGE NOT PROVIDED THIS PAGE IN REPORT CONTAINS SENSITIVE ElqFORMATION REGARDING ARCHAEOLOGICAL SITES, WHICH IS CONFIDENTIAL IN ACCORDANCE � WITH FEDERAL AND STATE LAWS. PHIS INFORMATION IS NOT AVAILABLE TO 1'HE GENERAL PUBLIC FIGURE 8, SITE B4H — ARCHAEOLOGICAL SURVEY OF WESTERN PORTIONS OF THE BOEING FACELITY, SEAL BEACH, ORANGE COUNTY, CALIFORNIA PAGE NOT PROVIDED THIS PAGE IN REPORT CONTAINS SENSITINjue ry U14FORMATION REGARDING ARCHAEOLOGICAL SITES, WHICH LS CONFIDENTIAL IN ACCORDANCE WITH FEDERAL AND STATE LAWS. TffiS INFORMATION IS NOT AVAILABLE TO THE GENERAL PUBLIC s FIGURE 9, SITE B4/H AND Be.5H TORIC MATERLALS — ARCHAEOLOGICAL SURVEY OF WESTERN PORTIONS OF THE BOEING FACELITY9 SEAL BEACH, ORANGE COUNTY, CALIFORNIA PAGE NOT PROVIDED TffiS PAGE IN REPORT CONTAINS SENSITIVE INTORMATION REGARDING ARCHAEOLOGICAL SITES, WHICH LS CONFIDENTIAL IN ACCORDANCE RTTH FEDERAL AND STATE LAWS. THIS INFORMATION IS NOT AVAILABLE TO 1'HE GENERAL PUBLIC This page Intentionally left biar. 7 t y r Page ZH -- Archaeological Survey of Weuem Portions of the Boeing Facility �•Q,i31ia� F� � ■� SrS+0i0 Site B-5H consists of a surface scatter of historic bottle glass distributed along WmUminster Avenue (Figure 9). The site measured 32 m east -west by 17 m north - south. The deposit consists primarily of sherds of histori c bottle glass. Colors include sol arized amethyst, amber, clear, dark green, and light green. Most glass sherds have caliche stain. There are also a fear small sherds of historic commcs. A few pieces of lone- based cos�crcte with sr000th, round reinforcing bar are also present. There is no indi cation that this historic site has depth, but the deposit may continue under Westrninster Avenue. Observed densitywas up to four specunenslsquam meter. This historic refuse scatter may be associated with the Hellman Ranch, approximately 0.5 ntle east,. Site B-6 is a very large, low -to high - density shell deposit composed primarily of fragments of Ch ion e and Argopectin. Some =* ens of Crepiduia onyx (slipper shell), Polinices reclusianus (southern moon snail), and Ostrea lurida (native oyster) were also noted. The site measured approximately 400 rn north -south by 200 m cast -west. The site consists of four loci, numbered 1 through 4 (Figure 14). The highest observed shell density in Locus 1 was 21 specimens/square mew (Figure 1 OA). The soil in this arms was grayish silt (1 OYR 512). The highest density in Locus 2 (Figure 1 OB) was 71 specimens/square meter. The soil in this locus was the approximately the same as Locus 1. In Locus 3 and 4, the soil was dark grayish brown (I OYR 412) fine sandy silt. The highest observed density in Locus 3 was 31 specimens/square meter (Figure 1 OB), while the highest observed density xn Locus 4 was 92 spechnenslsquare teeter (Figure 1 OC). Some ' ens m Locus 4 appeared to have been burned. A rnano was noted between Locus 1 and Locus 4 (Figure 1 OC). This specimen, made of a ellipsoid, red -brown river cobble, had mushing and chipping on its ends suggesting use as a erstone as well as a grinding implement. West of the track (see Figure 10), was what appeared to be a cluster of possible Anasazi black on white pottery sherds. Because Puebloan celantics are very rare on the southern California coast, these sherds were collected and sent to Dr. Kelley Hays - Gilpin of the Department of Anthropology, Northern Arizona University. She initially thought they might be Puebloan, but upon closer scrutiny under magni h cat on, she identified the material as floor file similar to what is humorously Ymown in northern Arizona as bTTUA Black on White. In the 1940s and 50s, the Navajo Tribal Utility Authority OqTUA) used a white floor file in their housing projects. It was installed using a black, asphaltum-based mastic and a notched trowel which spread the mastic into black striations on the bottom of the white tile. This suinrificially looks like Puebloan Black on White wares especially when only small sherds of the file are available. In other words, what we initially thought night be Puebloan pottery consisted of small sherds of relatively modern floor file (Appendix Q. South ofU cus 1 east o f Locus 2 is an expanse of fill material composed of pale brown fine sand and silt (1 OYR 612). Since shell was noted beyond the fill area new buildings 91 and 89, it is reasonable to assume that the site exists under the fill. An examination of ground squirrel holes suggests that this site does have asubswrbet component grater than 40 cm deep in the Locus 4 area The existence of subsurface natmial in other loci is u own.. At the south end of the site, the soil is obscnsed by a deep layer of mulch, chipped. vegetation, and palm fronds (see Figure 10). Ibis area measured appraxunately 240 by 100 m. Ground vis�`biiity was better along the cast-west trending drain age ditch in this area. Shell was noted on both sides of this drainage. 7be highest observed shell density on the south side of the drainage was four specimens/square meter. Shell was Archaeological Survey of Western Portions of the Boeing Facility Page 29 OMM ".e;le Apowtr PIP- Ovd Sam FIGURE !0, SITE B4 - ARCHAEOLOGICAL SURVEY OF WESTERN PORTIONS OF THE BOEING FACILITY,, SEAL BEACH, ORANGE COUNTY, CALIFORNIA PAGE NOT PROVIDED THIS PAGE IN REPORT CONTAINS SENSITIVE INFORMATION REGARDING ARCHAEOLOGICAL SITES, W LS CONFIDENTIAL IN ACCORDANCE WITH FEDERAL AND STATE LAWS. THIS INIFORMATION IS NOT AVABLABLE TO 1'HE GENERAL PUBLIC FIGURE 10A, SITE B -6 LOCUS 1- ARCHAEOLOGICAL SURVEY OF WESTERN PORTIONS OF THE BOEING FACILJTY-9 SEAL BEACH, ORANGE COUNTY, CALIFORN IA PAGE NOT PROVIDED THIS PAGE IN REPORT CONTAINS SENSITIVE INFORMATION REGARDING ARCHAEOLOGICAL SITES,WIUCH IS CONFIDENTIAL IN ACCORDANCE WITH FEDERAL AND STATE L THIS INFORMATION LS NOT AVAI]LABLE TO T'HE GENERAL PUBLIC i R r l i i S i r! F S This page intrOationally left blank.. s r s y1 i f Z i z zF �y }S C Page 32 Archaeological Survey of Western Portions of the Boeing Faciliry 00003 Ficilor AW..d saw I FIGURE 10B, S B -6 LOCUS 2 AND 3 - ARCHAEOLOGICAL SURVEY OF WESTERN PORTIONS OF TIC BOEING FACELITYt SEAL B CH. ORANGE COUNTY, CALIFORNIA PAGE NOT PROVIDED THIS PAGE IN REPORT CONTAINS SENSITIVE iNToRmAnoN REGARDING ARCHAEOLOGICAL SITES, HICH LS CONFIDENTIAL IN ACCORDANCE WITH FEDERAL AND STATE LAWS. THIS INFORMATION IS NOT AVAELABLE TO Tim GENERAL PUBLIC s r i i �r E t t i This page intentionally left bank,. t Page 34 Ambacological Survey of Western Portions of the Boeing Facility l"$JAwwg Foci* AOL"d "M FIGURE 1OC9 SITE B -6 LOCUS 4 - ARCHAEOLOGICAL SURVEY OF WESTERN PORTIONS OF THE BOEING FACIL .9 SEAL BEACH, ORANGE COUNTY, CALIFORNIA PAGE NOT PROVIDED THIS PAGE IN REPORT CONTAINS SENSITIVE INFORMATION REGARDING ARCHAEOLOGICAL SITES, WIUCH IS CONFIDENTIAL IN ACCORDANCE WITH FEDERAL AND STATE LAWS. TFIIS INFORMATION IS NOT. AVAILABLE TO THE GENERAL PUBLIC also encountered in the site area all along the fence that forms the west boundary of the Boeing parcel, between it and the Los Alamitos Retarding Basin. Site B-7 is a low - density shell deposit sed fly of fragr�acats of �'hior�e and �rgopec�irr. The site was located at the south aid of the Boeing compound (Figure 11) in an area where mulch and palm fronds covers much of the soil surface. The Highest observed density was 12 spe�cirnenslsquart mater, but soil visibility was very united in this area. The shell count increased as one approached the south fence of the Boeing win pound, suggesting that the site may extend into that area. The visible portion of the site ni approximately 25 rn east -west by 12 m north - south. The site soil was grayish brown (1 OYR 512). Nearby sterile soil was a iigbt brownish gray (I OYR 612). These soils were composed primarily of indurated silt, with small amounts of fine sand. There is no evidence upon which to suggest whether or not a subsurface deposit exists. South - southwest of Site B-6 some 150 m, at the south a i mnost point of the project arcs is one of the sites recorded by Redwine M* 1955: LH9, or CA� -ORA -264. This site is recorded south of Adolfo de Lopez Drive. The adjacent area within the Boeing parcel was ex but it pears to have been rwontoured and no sign of the site was discovered during fieldwork. Site B -5 is a low- density sheH deposit composed . fly of fragments of Chione and Argopec tin. The site is located at the south end of the Boeing compound and the easternmost point ofthe proj ect area (Figure 11). This was a plowed area with excellent ground visibility. The highest observed shell density was 15 specimenslsquare meter. The shell distnlution appeared to continue north beyond the fence into the Boeing compound. The site measured approximately 22 m in diameter. The site soil was grayish brown (I OYR 512). Nearby sterile soil was a light brownish gray (I OYR 6C). These soils were composed primarily of indurated silt, with small amounts of fine sand. The existence of a subsurface deposit is unknown at this time. East of Site B-S approximately 45 m is a site previously recorded by Redwine in 1955: Site LH 10 or CA -OR.A -265. This site is recorded just upslope of the project property. This area appears to have been recontoured. No sign of the site was seen during fieldwork. Page 36 Archaeological Survey of western Portions of the Boeing Facility FIGURE 11, SLUSBal AND B -8 — ARCHAEOLOGICAL SURVEY OF WESTERN PORTIONS OF THE BOEING FACILITY, SEAL BEACH, ORANGE COUNTY, CALIFORNIA PAGE NOT PROVIDED THIS PAGE IN REPORT CONTAINS SENSITIVE INFORMATION REGARDING. ARCI3AEOLOGICAL SITES, WHICH IS CON FIDENTIAL IN ACCORDANCE WTTH FEDERAL AND STATE LAWS. Tim INFORMATION LS NOT AVAILABLE TO TFIE GENERAL PUBLIC T is page intarI* ouallbv left blank. Page 38 logical Survey of Westem Portions of the Boeing Facility dO_WJv.:W F. Ary J4& . d JdM t f F t V, it CHAPTERS MANAGEMEN7 CONSIDERA17IONS For srchaeologi c.0 sites, significance is typically tied to a site's ability to contribute to rega oral research issues, thereby qualifying for inchision in the rational Register of Historic Places (National Register) under Criterion D or -for the California Register of Historical Resources under Criterion 4. At the survey level investigation, KFA can offer only pre ' evaluations of significance. More def nitive evaluations must typically await a phase II or testing phase. EVALUATION CRTTERIA The evaluation pr ocess is based on whether or not the property can meet criteria for inclusion in the National Register under the criteria set forth in 35 CFR 60.4: The quality of sigM fficance in American history and G" %W Ology is present in sites that possess integrity of location, design, setting, =materials, workmanship, feeling, and association and: A. That are associated with events that have made a significant contnution to the broad patterns of our history; or B. That are .associated with the lives of persons significant in our past; . or C. That embody the distinctive characteristics of a type, period or method of construction or that represent the work of a: aster, or that possess high artistic values, or D. That have yielded, or may be Uely to yield, information important in prehistory or history. For archaeological sites, the integrity question typically asks if the site has beam substantially disturbed by modem activities (consvuction, vandaiissnlcoliecting, ORV activities, ` g, etc.). Is the site in.its original context or has it been =roved? Is its condition such that it maybe able to address research questions. A few ORV tracks or a small amount of grading through a site would certainly dirnnush its integrity, but may not destroy its information potential. A large amount of Vmdien& or erosion (byna human agency) may completely r ove the site's ability to address research guest' ons im any ineamingful way. Eli j;ible sites, then,, possess both good integrity and sufcient data potential to make a non-trivial consnbution to* regional research issues. Examination of historic maps (see Figures 3 and 4 above) and the constructi on -cra photos supplied by Boeing, along with KEA's field examination, reveals that substantial integrity issues exist with Archaeologic. Survey of Westem Portions of the Boeing Facility Page 39 aUWANsw rr Fmiirti• A*-n* MW to the sites recorded on the Boeing parcel. First, it appears that most of the project area was marshy in 1873, suggesting that shell might occur naturally on site and calling into question the suitability of the parcel for prehistoric human occupation. In consi during this, one roust bear in mind that Holocene alluviation in lagoonal situations was not a unifa=4 unilineal process. Rather, lagoon -edge marshes were subject to periodic cycles of fhah in& and deposition, which often resulted m an undulating with minor hr�ocks aad wet areas. Slightly raised areas alight have served as opportunistic shellfish processing am for the inhabitants of the nearby randin �IiII sites. y S Second, it that part o ding Hill was cut during co 'on, and this could have resulted in the rcdeposition of some cultural materials within the parcel. Third, 1n situ matarials would probably have been subjected to some degree of co ' on- related distutba nce at or near the graAm. However, it is not clear that this agewouldbeso great as to diminish the integrity of the cological sites to a degree that they would not meet the National Register criteria. Moreover, the shell leas buried at a depth of 70 cm in site B41H would indicate the potential for buried sites that escaped damage during construction. A testing program would be nee ssary to assess actual integrity of the sites recorded :during the KFA survey. The intensive survey reported here resulted in the identifcafiion of eight previously rded archaeological sites. Seven of these are prehistoric shell deposits; one. of these has an historic component. One site is a historic period site. The historic period deposits (viz., the historic component ofB 4lH and historic site B-5H) do not appear to have notable information to contribute to our underst=ding of local or regional history. The location of this material bars been noted. No further research is recommended at these sites. The prehistoric sites may have important information to contribute to our undmilanding of regional prehistory. Sites B-2, B-3, B-4/H and Locus 4 of B-6 have demonstrable subsurface components. At site B --41H, a cultural stratum was discovered m a drainage canal cut below approximately 74 crn of sterile soil. We would suggest a testing program be undertaken to document the soil deposition history in site areas and to detennine the surface and subsurface extent of these deposits, their dates of occupation, their functions within the prehistoric economic and settlement s-ystenas, and their overall si cane and integrity. An important part of the question of site integrity on the Boeing parcel has to do with site disturbance. important questions about the distn bution and depth of fill deposits and the relationships between the fill and the archaeological deposits. Testing p, V=s typically involve excavation of controlled 1 x 1 m excavation units and limited backhoe trenching to test for deeply buried deposits, and to document soil deposition history. In addition, shovel test pits (ST?s) may be utilized to test for shallow buried deposits. The demo existence of the deeply buried cultural deposit at site B-41H suggests that STPs may be ineffective in this enviroRnment since it becomes unpractical to dig S'i`ps deeper than 50 cm or so. An al ive to a limited a program would be to design any future development. of the parcel to avoid and preserve the potentially signifcantarchaeologicalsites, B-1, B-2, B -3, B-41H,2 , 3-7, and B-8. This alternative may present difficulties of the distn`bution of these sites throughout the parcel. Page 40 Archaeological Survey of westem Portions of the Boeing Facility 60.41 Ukmft Halley A*."d "OW REFERENCES CITED Antevs, Ernst 1955 Geologic - Climatic Bating in the west. American Andquity 20(4):317 -335. Homer 1959 The Evolution of a Wild Landscape and Its Persistence in Southern California. Annals of the Dissociation of Ame=* n Geographers. 49(3):34 -56. Balls, Edward K 1962 Early Uses of California Plants. University of California Press, Berkeley. Bean, Lowell J. and Florence C. Shipek 1978 Y.uiscno In Robert F. Heizer (volume editor), Handbook of)Vorth America Indians, Voluaze g, California, Smithsonian institution, Washington D.C., pp. 550 -553. Bean, Lowell J. and Harry W. Lawton 1968 A Prelimhawy Reconstruction of Abori ginal .Agricultural T nology. Indian Hissorian,1 (5):18 -24. 1973 Some Explanations for the Rise of Mural Complexity in Native California with Comments on Proto - Agriculture and Agriculture. In Henry T. Lewis, Patterns oflndian Burn ing in California Ecology and Ethn o history. Ramona, California:vwxi. Bean, Lowell John and Charles R. Smith 1978 Gabrielino. In Handbook of North American Indians, vol. 9, pp. 535 -562. Robert P. H eizer, editor. Smi Institution, Washington, D.C. Blackburn, Thomas 1963 Ethnohistoric Descriptions of Gabrielino Material Culture. Annual Report, Archaeological Survey, Department of Anthropology- Sociology, University of California, Los Angeles. Bohm Herbert E. 1927 Fray Juan Crespi; Missionary Explorer on rh a Pacific Coast 1 769 -1774. University of California Press, Berkeley. California Office of historic Preservation 1989 Archeological Resource Management Rgports (ARM) Guidelines. Depariinent of Parks and Recreation, State of Ca,iifornia, Sacrmnento. . 1995 Instructions for Recording Historical ResourMS. IDepartnaent of Parks and Recreation, State of California, Sa6 mnento. Archaeological Survey of Western Portions of the Boeing Facility Page 41 80-0iuW6wZ f egotr Rp.vr APPO Clevenger, Joyce M. and Kathleen A. Crawford 1997 Historic Properties Overview and Evaluations on the Naval Weapons Station, Seal Beach. Document on file with the U.S. Department of the Davy, Southwest Division, Laval Facilities Engineering Command, San Diego. ]]rover, C.E., H.C. Ioerper, and P. Laewalter II ngn 1983 Early Holocene an Adaptation on the Southern California Coast: A S Report of investigations at the Irvine Site (CA- Cara -64), Newport Bay, Orange County, California. Pa%ftc Coast Archaeological Society Quarterly, 19(3 & 4 } :1 -84. Duunel, Robert C. 1990 Artifact Size and Lateral Displacement Under Tillage: Comments on the Odell and Cowan Experiment. American Antiquity 55 (3):592 -594. on, Jon M.. 1994 Early Hunter-Gatherers of the Cxd forma Coast. Plenum Press, New York. Glassow, Michael A. 1980 Recent Developments in the Archaeology of the Channel Islands. In The California Islands, an Interdisciplinary Syrnposiurn, edited by D.M. Power, pp. 79 -99. Santa Barbara Museum of Natural History, Santa Barbara. Glassow, Michael A., Larry Wilcoxon, and Jon Erlandson 1988 Mural and Environmental Change dining the Early Period of Santa Barbara el Prehistory. In The Archaeology of Prehistoric Coastlines, edited by Geoff Bailey and John Parkington, pp. 64-77. Cambridge University Press, New York. Grrayson, Donald K 1993 the Desert's Past. A Nzttural Prehistory of the Great Basin. Smithsonian lastitution Press, Washington and London. Hinton, Sazn 1987 Seashore Life or Southern California: an Introduction to the Animal life of California Beaches South of Santa Barbara. University of California Press, Berkeley. Jones, T y L. 1 992 Settlement Tr=ds Along the California Coast. In ,Essays on the Prehistory of Maritime Californnia, edited by Terry L. Jones, pp.l -38. Igo. 10, Center for Archaeological Researcb at Davis, University of California at Davis. er,A.Lo 1925 Handbook of Indians of California. Bureau of American Ethnology Bulletin 78, Smithsonian Institu on, W ogton D.C. Page 42 Arcbaeological Survey of Western Portions of the Boeing Facility 0-WjU M" FaeiW APL% d Sam Lavender, David 1957 Historical Narrative, Rancho LosAlamftos. Rancho Los Alamitos Foundation., Long Beach, California. Lcwarch, D. E. and M. J. O'Brien 1951 Effect of Short-Term Tillage on Aggregate Provenience Surface Pattern. In Plowcone Archaeolcg . Contrjbzaions to Theory and Technique, edited by M. J. O 'Brien and D. E. Lewarch, pp. 749. Pubb ons in Anthropology no. 27. Vanderbuilt Univ ty, Na shvWe. Luomala, e 1975 T"ipai -Ipai. In Robert F. Heizer (ed.), Handbook of North American .Indians, Vol. 8, California. Smithsonian Institution, Washington, D.O., pp. 592 4M. Mason, R.D. 1957 Research Design for Evaluation ofCoastal Archacologi cal Sites in Northern Orange County, California Prepared by Scientific Resource Surveys, inc., Pluntington Beach, California. Mason, RD., and M.L. Peterson 1994 Newport Coast Settlement Systems: Analysis and Discussion, Volume I. Prepared for Coastal Community Builders, Newport Beach, California. Prepared by The Keith Companies, Costa Mesa. M oratto, Michael J. 1984 California Archaeology. Academic Press, New York. Phillips, George 1980 Indians in Los Angeles, 1781 41875: Economic Integration, Social Disintegration. Pacific Historical Review 40:441 -451. Raab, L. M., J. L. Pomasi, K. Bradford, and A. Yatsko 1995 Beyond the 50- Percent Solution: Maritime Intensification at Eel Point, San Clemente Island, California. Presented at the Annual Meetings of the society for California Archaeology, Eureka. Reddy, Seetlia N. and Brian F. Byrd 1997 A Window to the Past: Desigaaing Archaeological Study on Camp Pendleton, California. Document on f le with ASM and Affiliates, Encinitas, California. Rogers, Malcolm J. 1939 Early Lithic industries of the Lover Basin ofthe Colorado River and Adjacent Desert Areas. San Diego Museum of Man Papers 3. 1945 Outline of Yuman Prehistory. Southwestern Jow7wl of Anthropology 1:157 -195. Archaeological Survey of Western Portions of the Boeing Facility Page 43 Schaefer, Jerry 1994 The Challenge of Archaeological Research in the Colorado. _ Pesert: Recent Approaches and Discoveries. Journal of Cal fornia and Great Basin Anthropology 16(1):60 -.800 Shipley, W. 1975 Native guages of California. In Handbook of North American Indians, Vol. 8: California, edited by R.F. Heitcr, pp. 54-9. Smithsonian lnistitution, Washington, D.C. Stickel, 8.G, 1991 A Baseline Archaeological Study for the City of Seal Beach, California. Document on file with the City of Seal Beach. 1996 An Archaeological Site S urvey of the Human Ranch, City of Seal Beach, California. Manuscript on file at the South Central Coastal Information Center, University of California, Los Angeles. Taggart, Frederick (ed.) 1911 The Portola Expedition of 1769 -1770: Diary ofMiguel Costanso. Publications ofihe Academy of Pacific Coast History 2(4). Underwood, Jackson 1999 Archaeological Survey and Testing at Bixby OId Ranch Towne Center, Seal Beach, Osage County, California. Docent on file with the City of Scat Beach, and KFA Enviror=ental, San Diego. Wallace, William J. 1955 A Suggested Chronology for Southern California Coastal Archaeology. Southwestern Journal of Anthropology 11 (3):.214 -230. Warner, Col. J. J., Judge B enj = in Mayes, and Dr. J. P. Widney 1935 [1876] An Historical Sketch of Los Angeles County, California from the Spanish Occupancy, by the Founding of Mission San Gabriel Archangel, September 8 1771 to July 41 576. Reprinted by G. W. Smith, Los Angeles. Warren, Claude N. 1 984 The Desert Region. In Michael J. Morattlo (ed.) California Archaeology. Academic Press, pp. 339 -430. 1968 Cultural Traditions and Ecological Adaptation on the Southern California Coast. In Archaic Prehistory in the Western gaited States, edited by Cynthia Irwin - William -Fatern New Meo co University Contributions in A th ropology 1(3):1-14. Page 44 Archaeological Survey of Western Portions of the Boeing Facility s F Warren, Claude N. and Robert H. Crabtree 1986 Prehistory of the Southwestern Area. In Warren L. D Azevedo (ed.), Handbook of North American Indians, Vol. 11, Great Basin. Smithsonian institution, Washington, " D.C., pp. 183 -193. s Yesner, DR 1990 Marie Bunter- Gather Ecology Prehistory. Current Anthropology 21:727 - 750. York, Andrew, James H. Cleland and Michael Baksh 1997 A Research Design for the Evaluation of Archaeological Sites within the Hellman Ranch Specific Plan Area. Docmnent. on file with the City of Seal Beach and KEA Environmental, Inc., Sall Diego. Archaeological Survey of Wen= Portions of the Boeing Facility Page 45 aa.as��s.e� F.�•�..�u s�raa Page 45 Archaeological Survey of Western Portions of the Boeing Facility �.pS3 Liar■rw� Farii�n Apr, uprl 31�►0� 15.7 Geology /Soils Analysis UPDATED GEOTECHNICAL FEASIBILITY REPORT PROPOSED MIXED -USE DEVELOPMENT BOEING PROPERTY S WC OF SEAL BEACH BOULEVARD AND WESTMINSTER AVENUE SEAL BEACH, CALIFORNIA - Prepared By- Sladden Engineering 39 -725 Garand Lane, Suite G Palm Desert, California 92211 (760) 772 -3893 z i c s M r Madden F. it of epri -a Sladden Engineering 6782 Stanton Ave., Suite A, Buena Park, CA 90621 (714) 523 -0952 Fax (714) 523 -1369 39 -725 Garand Ln., Suite G, Palm Desert, CA 92211 (750) 772 -3893 Fax (760) 772 -3895 July 28, 2002 (Revised 8- 22 -02) Stone Creek Company 30322 Esperanza Avenue, Suite 200 Rancho Santa Margarita, California 92688 Attention: Mr. Clay Corwin Project: Proposed Mixed -Use Development SWC Seal Beach Boulevard & Westminster Avenue Seal Beach, California Subject: Geotechnical Investigation Report Project No. 444 -0015 02- 07-446 Presented herewith is a summary report of our review of previous geotechnical investigations conducted at the site of the proposed mixed -use development. The site of the proposed mixed -use commercial /industrial development is located just southwest of the intersection of Seal Beach Boulevard and Westminster Avenue in the City of Seal Beach, California. The project sites are located adjacent to the existing Boeing Space and Communications complex. The previous investigations were performed in order to provide geotechnical information regarding the site soils and geologic conditions along with recommendations for site preparation and foundation design for the proposed commercial or industrial buildings. This report presents the results of our supplemental (and initial) field investigation and laboratory testing along with conclusions and recommendations for building foundation design and site preparation. This report completes our scope of services as understood. We appreciate the opportunity to provide service to you on this project. If you have any questions regarding this report, please contact the undersigned. Respectfully submitted, SLADDEN ENGINEERING Brett L. Anderson Principal Engineer i °Q NO. C 455' .8 1 z x ` Ex .0. a_30 -21302 r SER1ba Copies: 6/Stone Creek Company f 1�'YA'F �-�. .,04 " R. Layne Ri hins ��-� ��, f c Sr. Engineering Geologist; z No. 1793 rz Y CPRrFIEa ^w ' a Sladden Engineering UPDATED GEOTECHNICAL FEASIBILITY REPORT PROPOSED MIXED -USE DEVELOPMENT BOEING PROPERTY SWC OF SEAL BEACH BOULEVARD AND WESTMINSTER AVENUE SEAL BEACH, CALIFORNIA July 28, 2002 TABLE OF CONTENTS INTRODUCTION........................................................................................ ............................... I SCOPEOF WORK ...................................................................................... ............................... 1 PROJECTDESCRIPTION ......... ................................................................. ............................... I SUBSURFACECONDITIONS 2 ................................................................... ............................... SEISMICITY..................... ...... ............................... _ ..................................... ............................... 3 LIQUEFACTION......................................................................................... ............................... 3 CONCLUSIONS AND RECOMMENDATIONS ....................................... ............................... 4 Foundation Design ................................................................................. ............................... 5 Settlements............................................................................................. ............................... 5 Lateral ... .... . Design . ..... .......................................................................... ......................... -• - - -. 5 RetainingWalls......................... ............................................................. ............................... 6 ExpansiveSoils........ .............................................................................. ............................... 6 ConcreteSlabs -on -Grade ......... ........... ........0...................... _................... 6 ............................... SolubleSulfates ..................................... ......................_......................... ............................... 6 TentativePavement Design .......... .......................................................... 7 ............................... Shrinkageand Subsidence ............. ........................................................ ............................... GeneralSite Grading 7 .............................................................................. ............................... 1. and Grubbing 7 ................................................................ ............................... 7Clearing 2. Preparation of Building and Foundation Areas ........................... ............................... 8 3. Preparation of other Surfaces to Receive Compacted Fill ........... ............................... 8 . - 4. Placement of Compacted Fill ...................................................... ............................... 8 5. Preparation of Slab and Paving Areas .............................. ............................... 0.......... 8 G. Testing and inspection ................................................................. 9 ............................... GENERAL................................................................................................... ............................... 9 APPENDIX A - SPT Logs Site Plans APPENDIX B - GREGG INSITU Cone Penetration Data APPENDIX C - Initial Site Plan and Boring Logs Field Exploration APPENDIX D - Initial Laboratory Testing Laboratory Test Results APPENDIX E - 1997 UBC Seismic Design Criteria EQ Fault/EQ Search Output Data Previous Liquefaction Evaluation Summary .C'Irrrlrinr, �.�rrir,nnrir�n July 28, 2002 (Revised 5- 22 -02) INTRODUCTION Project No. 444 -0015 01- 07-446 This report presents the results of our previous geotechnical investigations performed in order to provide important information regarding the site soils conditions along with specific recommendations for the design and construction of the proposed commercial or industrial building foundations as well as the various associated site improvements. The project site is located southwest of the intersection of Seal Beach Boulevard and Westminster Avenue in the City of Seal Beach, California. The project site is located adjacent to the existing Boeing Space & Communications Complex. The project consists of a business park complex within the northeastern corner of the site and a mixed -use industrial complex within the western portion of the property. The plan indicates that the project includes a portion of the existing Boeing Space and Communications campus. The associated site improvements will include paved parking areas, driveways, landscape areas and various underground utilities. A conceptual site plan provided by DeRevere &. Associates was used as a reference during our investigation. The information and recommendations provided herein are intended to supplement the information and tentative recommendations included within our initial GeotechnicaI Feasibility Report dated May 3, 2000; (Project No. 444 -0015, 00 -03- 124) and our supplemental Geotechnical Investigation reports dated March, 2001 (Project No's 444- 00 15 -1 through 6). SCOPE OF WORK The purpose of our previous geotechnical investigations was to determine certain engineering characteristics of the near surface soils .on the site in order to develop specific recommendations for building foundation design and site preparation. The information provided herein is intended to supplement the information included within our initial Geotechnical Feasibility Report and supplemental Geotechnical Investigation reports. Our recent summary consisted of the review of our initial report and supplemental reports that included additional field exploration using a cone - penetration rig, engineering analyses and the preparation of this report. Our initial and supplemental field exploration and laboratory testing programs are described in detail within Appendices A and B of this report, respectively. Evaluation of hazardous wastes was not within the scope of services provided. Our investigation was performed in accordance with contemporary soil engineering principles and practice. We make no other warranty, either express or implied. PROJECT DESCRIPTION The proposed project site is located just southwest of the intersection of Seal Beach Boulevard and Westminster Avenue in the City of Seal Beach, California. A business park complex is proposed for the northeastern portion of the site and a mixed -use industrial development is proposed for the western portion of the property. The current plans indicate that the proposed industrial development will include 13 individual lots and will incorporate a portion of the � P existing Boeing Space & Communications campus into the new development. The conceptual plans prepared by DeRevere & Associates, were utilized for our current evaluation. The associated site improvements are expected to include paved parking areas and roadways along with various underground utilities. Sladden Engineering July 28, 2002 -2- Project No. 444 -0015 (Revised 8- 22 -02) 01- 07-446 It is our understanding that the proposed mixed -use industrial and commercial development will consist of numerous relatively lightweight reinforced concrete tilt -up or reinforced masonry structures. The proposed structures will be supported upon conventional shallow spread footings and concrete slabs on grade. The preliminary recommendations provided in this report were determined based upon buildings with isolated column loads of up to 150 kips and wall loads of up to 8.0 kips per linear foot. The site grading is expected to include minor cuts and fills to construct slightl y elevated level building pads in order to facilitate adequate site drainage. This does not include removal and recompaction of the foundation bearing soils within the building areas as recommended in the Grading section of this report. The majority of the property is presently vacant and the ground surface is covered with brush and weeds. The site and general site vicinity are fairly level throughout. The existing Boeing Space and Communications Complex is located just east and south of the site and the western portion of the Boeing complex will be removed to accommodate the new buildings and improvements. The Boeing facility includes numerous large buildings and related installations. There is a large stormwater retention basin located directly west of the site. Westminster Avenue is improved just north of the site and Seal Beach Boulevard is improved to the east of the site. Existing buildings have underground and overhead utilities along the street and servicing the adjacent Boeing facility. SUBSURFACE CONDITIONS As indicated in our previous report, the project site is underlain primarily by sandy silts and silty clays with scattered generally thin silty sand layers. The various sedimentary soil layers observed within our initial borings and our recent cone penetration test holes were fairly consistent in stratigraphy and thickness. The most prominent near surface soils consisted of silty clays and sandy silts but silty sands were observed below a depth of 40 feet. The near surface soils were found to be somewhat inconsistent in density but generally firm or stiff. Relatively undisturbed samples obtained during our initial investigation indicated dry density varying from 61 to 118 pounds per cubic foot (pef). Laboratory testing indicated moisture content varying from 3.1 to 69.4 percent. The soils were generally saturated below a depth of 4 or 5 feet within the majority of our borings. Laboratory classification testing indicates that the surface soils consist primarily of sandy clayey silts and silty clays but some silty sands were also encountered in isolated areas. Expansion testing indicates expansion indices of 93 and 113 for the near surface silts and clays that correspond with the "high" expansion category as designated within Section 18 -2 of the 1997 Uniform Building Code (UBC). The silty sands were determined to be generally non -ex ansiv.e. Consolidation testing performed on relatively undisturbed samples indicates that some of the soils underlying the site remain compressible and may be susceptible to detrimental settlements due to additional loading associated with structure foundations and the placement of engineered fills. July 28, 2002 -3- Project No. 444 -4415 (Revised 8- 22 -02) 01-07-446 Groundwater was encountered at a depth of approximately 19 to 23 feet below the existing ground surface within our borings and CPT holes. The relatively shallow depth to groundwater should be considered in foundation design and site development plans. High moisture contents and the presence of shallow groundwater will limit the effective depth of recompaction and will affect remedial grading operations and subsurface installations. SEISMICITY The project site is located within a seismically active area of Southern California. Available literature indicates that the area of the site has experienced significant ground motion as a result of numerous prominent earthquakes that have previously occurred within the Los Angeles area. Based upon the proximity of the site to several potentially active faults, it is inevitable that the subject site will experience significant ground motion as a result of future seismic events. In order to evaluate the site seismicity, two computer programs were utilized to com P ile .data relative to earthquake fault zones in the region and previous seismic activity that ma y have affected the site. E. Q. Fault Version 2.01 provides a compilation of data related to earthquake faults in the region. The program searches available databases and summarizes both surface accelerations and distances to causitive activity along these faults. The attenuation relationship utilized for this project was based upon Boore (1993) attenuation curves. E. Q. Search Version 2.20 provides a compilation of previous earthquake activity that may have occurred in the area of the site. In addition, the accelerations that may have been experienced in the area of the site as a result of previous earthquake activity. are estimated. The output data from these two computer programs is included within Appendix C of this report. As indicated on the summary page of the E. Q. Fault output data, the Newport- Inglewood fault is the closest active fault to the site (approximately 2.1 miles or 3 km to the southwest). The maximum credible site acceleration is estimated to be 1.022g while the maximum probable site acceleration is estimated to be 0.549g. As indicated on the summary page of the E. Q. Search output data, the nearest documented historic earthquake was approximately 1 mile from the site. The maximum site acceleration that has been previously experienced on the site is estimated to be 0.467g. LIQUEFACTION Liquefaction occurs with sudden loss of soil strength due to rapid increases in re pressures P within cohesionless soils as a result of repeated cyclic loading during seismic events. Several conditions must be present for liquefaction to occur including; the presence of relative) y shallow groundwater, generally low in -place density, the susceptibility of soils to liquefaction based upon grain -size characteristics and the potential generation of significant and repeated seismically y induced ground accelerations. Liquefaction affects primarily loose, uniform grained cohesionless sands with low relative densities. In the case of this project site, several of the factors required for liquefaction to occur are P resent. As previously indicated, groundwater was encountered at a depth of approximately 24 feet below the ground surface on the site. Isolated relatively uniform grained silty sand layers were encountered within our deeper CPT test hole. The site is located near several active fault systems. Sladdeir Eneineerltre, July 28, 2002 -4_ Project No. 444 -0015 (Revised. 8-22-02) 0I- 07-446 Liquefaction analyses were performed based upon commonly accepted methods initially developed by Seed (and others). Supplemental evaluation utilizing cone penetration (CPT) test results and empirically developed correlations with standard penetration test (SPT) data was also performed. Our analyses indicate that the majority of the deeper sandy soils are generally considered too dense to liquefy during the expected maximum seismic event. The majority of the site soils consist of silts and clays that are generally considered non - liquefiable. Our previous liquefaction analyses and recent CPT test results are summarized in Appendix A of this report. CONCLUSIONS AND RECOMMENDATIONS Based upon our field investigation and laboratory testing, it is our opinion that the proposed development is feasible from a soil mechanic's standpoint provided that the recommendations included in this report are considered in building foundation design and site preparation. Due to the somewhat inconsistent density and potentially compressible nature of the near surface soils, remedial grading is recommended for building and foundation areas. We recommend that remedial grading within the proposed building areas include the removal and recompaction of the primary foundation bearing soils and any artificial fill material that may be encountered during grading. The presence of relatively shallow groundwater and the generally high moisture content of the near surface soils will limit the depth of overexcavation and recompaction that may be reasonably accomplished. Specific recommendations for site preparation are presented in the Site Grading section of this report. The general site seismicity was evaluated using two computer programs. As indicated in the output data, the site is located approximately 2.1 miles northeast of the Newport- Inglewood fault zone. Based upon a seismic event with a magnitude of 7.0, the maximum probable ground accelerations expected at the site are estimated to be approximately 0.5498. Groundwater was encountered within our borings at a depth of approximately 19 feet below the existing ground surface within our borings. Liquefaction potential was evaluated using the results of our recent CPT testing and commonly accepted methods that correlate CPT results with previously established STP test methods. Based upon the prominence of silts and clays within our borings, and the generally firm condition of the sand layers encountered below the present groundwater table, it is our opinion that the potential for liquefaction occurring at the site is negligible. In the unlikely event that liquefaction were to occur, the near surface silt and clay layers should impede the upward flow of pore -water and consequently the surficial affects of liquefaction should be limited. The proposed remedial grading will provide a uniform mat of compacted soil that should help span any subsurface subsidence related to liquefaction or seismic settlements.' Based upon our investigation and analysis, it is our opinion that liquefaction related mitigation measures in addition to the recommended remedial grading should not be necessary. PHlr;"""ris7fir July 28, 2002 -5- Project No. 444 -0015 (Revised 8- 22 -02) 01-07-446 Caving did not occur within the upper portions of our borings but did occur near the present groundwater levels. Seepage and potential sloughing should be anticipated in any excavations extending to depths of 5 feet or deeper. All excavations should be constructed in accordance with the normal CalOSHA excavation criteria. On the basis of our observations of the materials encountered, we anticipate that the subsoils will conform to those described by CalOSHA as Type B or C. Soil conditions should be verified in the field by a "Competent person" employed by the Contractor. The surface soils encountered during our investigation were found to be susceptible to potentially detrimental expansion. Laboratory testing indicated expansion indices of over 100 for the silty clays and clayey silts present near the existing ground surface, which corresponds with the "high" expansion category in accordance with UBC criteria. The following recommendations present more detailed design criteria that have been developed on the basis of our initial and supplemental field and laboratory investigation. These recommendations should be considered applicable for the anticipated concrete tilt -up industrial building. Foundation Design: The results of our investigation indicate that either conventional shallow continuous footings or isolated pad footings, that are supported upon properly compacted soils, may be expected to provide satisfactory support for the ro osed P P structure foundations. overexcavation and recompaction should be performed as described in the Site Grading Section of this report to provide for uniform and firm bearing conditions. Footings should extend at least 30 inches beneath lowest adjacent grade. Isolated square or rectangular footings at least 3 feet square may be designed using an allowable bearing pressure of 2500 pounds per square foot. Continuous footings at least 2 feet wide may be designed using an allowable bearing pressure of 2000 pounds per square foot. The allowable bearing pressures are for dead and frequently applied live loads and may be increased by 1/3 to resist wind, seismic or other transient loading. Care should be taken to see that bearing or subgrade soils are not allowed to become saturated from the ponding of rainwater or irrigation. Drainage from the building area should be rapid and complete. The recommendations made in the preceding paragraph are based on the assumption that all footings will be supported upon properly compacted soil. All grading should be performed under the testing and inspection of the Soils Engineer or his representative. Prior to the placement of concrete, we recommend that the footing excavations be inspected in order to verify that they extend into compacted soil and are free of loose and disturbed materials. Settlements: Settlements may result from the anticipated foundation loads. These estimated ultimate settlements are calculated to be a maximum of I inch when using the recommended bearing values. As a practical matter, differential settlements between footings can be assumed as one -half of the total settlement. .gladden Enpineerhy-ey July 28, 2002 -6- Project No. 444 -0015 (Revised 8- 22 -02) 01 -07 -446 Lateral Design: Resistance to lateral loads can be provided by a combination of friction acting at the base of the slabs or foundations and passive earth pressure along the sides of the foundations. A coefficient of friction of 0.40 between soil and concrete may be used with dead load forces only. A passive earth pressure of 250 pounds per square foot, per foot of depth, may be used for the sides of footings that are poured against properly compacted native soils. Passive earth pressure should be ignored within the upper 1 foot except where confined (such as beneath a Boor slab). Retaining Walls: Retaining walls may be required for the proposed development. Lateral pressures for use in retaining wall design may be estimated using an equivalent fluid weight of 40 pcf for level free- draining native backfill conditions. For walls that are to be restrained at the top, the equivalent fluid weight should be increased to 60 pcf for level free - draining native backfill conditions. Backdrains should be provided for the full height of the walls. Expansive Soils: Due to the presence of "high" expansion category soils near the surface, special expansive soil design criteria should be considered in the design of structures foundations and concrete slabs -on- grade. As a minimum, slabs should be reinforced with #4 steel reinforcing bars approximately 24 inches on center. Final, slab reinforcement and thickness should be established by the Structural Engineer based upon expansion testing performed after site grading. Concrete Slabs -on- Grade: All surfaces to receive concrete slabs -on -grade should be underlain by a minimum compacted fill thickness of 12 inches, placed as described in the Site Grading Section of this report. where slabs are to receive moisture sensitive floor coverings or where dampness of the floor slab is not desired, we recommend the use of an appropriate vapor barrier or an adequate capillary break. Vapor barriers should be protected by sand in order to reduce the possibility of puncture and to aid in obtaining uniform concrete curing. Stab thickness design will be ultimately be dependent upon anticipated slab or rack loading and subgrade treatment. A subgrade modulus of approximately 150 psi per inch is recommended for use in the design of building slabs on compacted native soils. The subgrade modulus can be increased if desired by utilizing crushed rock or base material beneath the slabs. The design subgrade modulus should be expected to increase proportionally with base material thickness. Reinforcement of slabs -on -grade in order to resist expansive soil pressures will be necessary and reinforcement will have a beneficial effect in containing cracking due to concrete shrinkage. Temperature and shrinkage related cracking should be anticipated in all concrete slabs -on- grade. Slab reinforcement and the spacing of control joints should be determined by the Structural Engineer. Soluble Sulfates: The 'soluble sulfate concentrations of the surface soils were determined to be vary from 62 to 1457 parts per million (ppm) which is generally considered potentially corrosive with respect to concrete. The use of Type 5 cement or sulfate resistant concrete mix designs may be necessary. Corrosion potential should be considered in design and construction. �'lnr�l�n►y ���rti»nnr'?"fy July 28, 2002 -7- Project No. 444 -0015 {Revised 8- 22 -02} 01- 07-446 Tentative Pavement Design: All paving should be underlain by a minimum compacted fill thickness of 12 inches (excluding aggregate base). This may be performed as described in the Site Grading Section of this report. R -Value testing was not performed but the soils observed on the site vicinity suggest that an R -Value of approximately 20 should be appropriate for use in preliminary pavement design. The following tentative recommendations for pavement section design are based upon a design R -Value of 20. In the majority of the parking areas and light traffic or driveway areas (Traffic Index 5.0), a pavement section of 3.0 inches of asphalt on 8.0 inches of base material should be adequate. In areas where heavy truck traffic is anticipated (Traffic Index 6.0), the pavement section should be increased to at least 4.0 inches of asphalt on 10.0 inches of base material. Final pavement design sections should be based upon specific traffic conditions and R -Value testing performed after grading Aggregate base should conform to the requirements for Class 2 Aggregate base in Section 26 of CalTrans Standard Specifications, January 1992. Asphaltic concrete should conform to Section 39 of the CalTrans Standard Specifications. The recommended sections should be provided with a uniformly compacted subgrade and precise control of thickness and elevations during placement. Drainage from paved areas should be rapid and complete. It should be noted that the pavement sections recommended above are minimum sections, if heavily loaded vehicles are expected to cross automobile parking and driving areas, thicker pavement sections may be desired at these locations. Pavement design sections are tentative and should be confirmed at the completion of site grading when the subgrade soils are in- place. This will include sampling and testing of the actual subgrade soils and an analysis based upon the specific use. Shrinkage and Subsidence: Volumetric shrinkage of the material that is excavated and replaced as controlled compacted fill should be anticipated. we estimate that this shrinkage could be up to 20 percent. Subsidence of the surfaces that are scarified and compacted. should be between two and three tenths of a foot. This will vary depending upon the type of equipment used, the moisture content of the soil at the time of grading and the actual degree of compaction attained. These values for shrinkage and subsidence are exclusive of losses that will occur due to the stripping of the organic material from the site and the removal of unsuitable materials. General Site Grading: All grading should be performed in accordance with the grading ordinance of the City of Seal Beach, California. The following remedial site grading recommendations have been developed on the basis of our field iunvestigation and laboratory testing: I. Clearing and Grubbing: All surfaces to receive compacted fill should be cleared of existing vegetation, debris, and other unsuitable materials which should be removed from the site. Soils that are disturbed during site clearing should be removed and replaced as controlled compacted fill under the direction of the Soils Engineer. .C1n�1�n�� �`r�nl�lA4rlHv July 28, 2002 -8- Project No. 444 -0015 (Revised 8- 22 -02) 01-07446 2. Preparation of Building and Foundation Areas: Foundation areas should be overexcavated to a depth of 3 feet below existing grade or 3 feet below the bottom of the footings, whichever is deeper. Building slab areas should be overexcavated to a depth of 2 feet below existing grade or 2 feet below slab subgrade whichever is deeper. Once cleaned of unacceptable material and moisture conditioned, the excavated material may be replaced as controlled compacted fill. I Preparation of other Surfaces to Receive Compacted Fill: Other areas to receive compacted fill should be scarified, brought to near optimum moisture content, and compacted to a minimum of 90 percent relative compaction prior to fill placement. 4. Placement of Compacted Fill: Fill materials consisting of on -site soils or approved imported granular soils, should be spread in thin lifts, and compacted at near optimum moisture content to a minimum of 90 percent relative compaction. The contractor shall notify the Soils Engineer at least 48 hours in advance of importing soils in order to provide sufficient time for the evaluation of proposed import materials. The contractor shall be responsible for delivering material to the site which complies with the project specifications. Approval by the Soils Engineer will be based upon material delivered to the site and not the preliminary evaluation of import sources. Our observations of the material encountered during our investigation indicate that compaction will be most readily obtained by means of heavy rubber - wheeled equipment and sheepsfoot compactors. At the time of our investigation, the subsoils were found to be wet in most areas. The use of lighter track mounted earthmoving equipment may be necessary in deeper excavations and where wet soils are encountered. A uniform and generally near optimum moisture content should be attained during fill placement and compaction. Based upon the generally wet conditions of the majority of -the site soils, it is likely that excessively wet and unstable soils will be encountered during grading. wet or unstable areas should be stabilized prior to fill placement. Stabilization will likely be required in the areas where deeper footings are anticipated. Stabilization will likely require the use of aggregate base or rock material and geotextile fabric. The use of geotextile fabric and aggregate in accordance with manufacturer's specifications has proved successful and timely on previous projects in the area. 5. Preparation of Stab and Paving Areas: All surfaces to receive asphalt concrete paving or exterior concrete slabs -on- grade, should be underlain by a minimum compacted fill thickness of 12 inches. Compaction may be accomplished by a combination of overexcavation, scarification and recompaction of the surface soils, and replacement of the excavated material as controlled compacted fill. Compaction of the slab areas shall be to a minimum of 90 percent relative compaction. Compaction within the proposed roadway areas shall be to a minimum of 95 percent relative compaction. July 28, 2002 _9- Pro j ect No. 444 -0015 (Revised 8- 22 -02) 01 -07 -446 6. Testing and Inspection: During grading tests and observations shall be performed by the Soils Engineer or his representative in order to verify that the grading is being performed in accordance with the project specifications. Field density testing shall be performed in accordance with applicable ASTM test standards. The minimum acceptable degree of compaction shall be 90 percent of the maximum dry density as obtained by the ASTM D1557 -91 test method. where testing indicates insufficient density, additional compactive effort shall be applied until retesting indicates satisfactory compaction. GENERAL The findings and recommendations presented in this report are based upon an interpolation of the soil conditions between boring locations and extrapolation of these conditions throughout the proposed building areas. Should conditions encountered during grading appear different than those indicated in this report, this office should be notified. This report is considered to be applicable for use by Stone Creek Company and the various project consultants for the specific site and project described herein. The use of this report by other parties or for other projects is not authorized. The recommendations of this report are contingent upon monitoring of the grading operation by a representative of Sladden Engineering. All recommendations are considered to be tentative pending our review of the grading operation and additional testing, if indicated. If others are employed to perform any soil testing, this office should be notified prior to such testing in order to coordinate any required site visits by our representative and to assure indemnification of Sladden Engineering. We recommend that a pre job conference be held on the site prior to the initiation of site grading. The purpose of this meeting will be to assure a complete understanding of the recommendations presented in this report as they apply to the actual grading performed. .�'f17��nxs F's�nii�n�lrirr[t APPENDICES A THROUGH E OF THE GEOTECHNICAL STUDY IS AVAILABLE FOR REVIEW PER REQUEST OF THE CITY OF SEAL BEACH 15.8 Hydrology/Water Quality Data BOEING SPACE AND COMMUNICATIONS SPECIFIC PLAN WATER SUPPLY ASSESSMENT PURPOSE OF ASSESSMENT City of Seal Beach Water Division (Division). is a Public Water System that provides potable water service within the corporate boundaries of the city. As the public water system, Division is required by Section 10910 et seq. of the Water code (the code) to provide the city of Seal Beach (the City) with an assessment of water supply availability ( "assessment ") for defined types of projects with large water demands. The project entitled "Boeing Space and communications Specific Plan" (Project) falls within the definitions of a "project" within the Code requiring an assessment. The City is required to include this assessment in the environmental document for the Project, and, based on the record, determine whether projected water supplies are sufficient for the Project and existing and planned uses. Beginning in 2002, Section 10910 of the code contains new requirements for the information to be utilized and presented in the assessment. The newly amended statute also calls for the assessment to be submitted before the lead agency begins to prepare the environmental document required for a project. At this time the CEQA process is at its inception and only a scoping meeting has been held. FINDINGS AND CONCLUSIONS The Project will add additional water demands on the City water system amounting to less than 300 acre -feet per year. Pursuant to CEQA Guidelines §15083.5, this Assessment concludes that, although the projected additional demand was not explicitly included in the City's latest Urban Water Management Plan, the total projected water supplies available during normal, single -dry, and multiple -dry water years as shown in this Water Supply Assessment, will meet the projected water demand associated with the proposed project, in addition to the system's existing and planned future uses. PROJECT DESCRIPTION The Project is located in the city of seal Beach in northwest orange county. The 107 -acre site is located southwest of the intersection of Seal Beach Boulevard and Westminster Boulevard. The Project consists of four Planning Areas described as follows.. Boeing WSA City of Seal Beach Water Supply Assessment Boeing Space and Communications Speck Plan • Planning Area I -- Approximately 41 acres for Core Campus of BSC. Existing 345,000 square -feet (SF) of space including manufacturing, office, research and development, light industrial, warehouse and distribution, and support services. An additional 345,000 SF is planned for this Planning Area. • Planning Area 2 —Approximately 15 acres and 345,000 SF of existing manufacturing and research and development and office space. Planning Area 2 includes allowances for new business park uses, including manufacturing, office, research and development, light industrial, warehouse and distribution, and support services. Planning Area 2 will not exceed 345,000 SF of new or existing facilities. • Planning Area 3 — Approximately 45 acres with up to 628,000 SF space for business park which may include manufacturing, office, research and development, light industrial, warehouse and distribution, and support services. • Planning Area 4 — Approximately 5 acres with 32,500 SF of space planned for 120 -room hotel and commercial land uses. SUPPORTING AND RELEVANT DOCUMENTS The City of Seal Beach has last prepared a Water System Master Plan in 1995. In 1999, the City retained the services of AKM consulting Engineers to prepare a "Review and Update of Water System Master Plan. The City has also prepared an "Urban Water Management Plan -2000" which was adopted by City Council in April 2001 and submitted to State Department of Water Resources. The UWMP contains defined elements as listed in the statute Water Code Section 10531, et seq.i, and as a result, is rather limited in the treatment of supply and demand issues. (The UWMP is required to be updated in years ending with "five" and "zero," thus the City's next update of that document is required in 2005.) However, an interim update of the City's UWMP has been drafted and will be presented to the City Council for approval. Because the interim update has yet to be approved by the City Council, this Assessment relies primarily on the information contained in the 2000 UWMP. it should be noted that nothing contained in the draft UWMP update would change this Assessment's conclusion that the total projected water supplies available during normal, single -dry, and multiple -dry water years will meet the projected water demand associated with the proposed project in addition to the system's existing and planned future uses. AKM Consulting Engineers are currently in the process of finalizing a hydraulic model of the City Water System and Capital Improvement Program. Boeing WSA 2 City of Seal Beach Water Supply Assessment Boeing Space and Communications Specific Plan WATER DEMANDS Consistent with the city's Water Master Plan and local standards of practice, the total water demand for the proposed project is estimated to be less than 300 acre -foot per year. SUPPLIER SERVICE AREA The city of Seal Beach is located on the coast in the northwest corner of Orange County. It occupies an area of about 11.6 square miles (7369 acres). The city provides water service to all residential and industrial and most commercial uses. Seal Beach has a Southern California coastal climate. Summers are mild and dry, and winters are cool, with an annual average of 12 inches of precipitation, with most of the rainfall occurring between November and March. The region is subject to wide variations in annual precipitation. Late night and early morning marine layer helps reduce summer irrigation requirements. Elevations within the city vary between 5 to 50 feet above sea level. There are virtually no days where temperatures fall below freezing. Deviation from the average annual precipitation was experienced in 1998 due to the El Nino conditions for the western United States. The current dry condition is unprecedented in recorded history of the area. The majority of the city land use is dedicated to military use (5000 acres) all of which is owned by United States Government. Low density residential use in the form of single family dwellings, are located in communities known as College Park East, , College Park West and Marina Hill. Medium density residential uses are located in Bridgeport, Old Town and Leisure World. High - density residential communities comprise Rossmore condominiums, Surlside colony, River Beach and p ortions of Old Town. Commercial areas are located along Main Street in Old Town and Bixby Ranch. Industrial and manufacturing uses consisting of space and military applications are concentrated at the confluence of Seal Beach Boulevard and Westminster Avenue. WATER SUPPLY SOURCES The City of Seal .Beach has two sources of water supply: local groundwater from Orange County Main Groundwater Basin and imported water from Metropolitan Water District of Southern California (Metropolitan) through Municipal Water District Boeing WSA 3 City of Seal Beach Water Supply Assessment Boeing Space and Communications Specific Plan of Grange County (MWDOC). These supply sources are discussed below under the headings "Groundwater" and "Imported Supplies" ASSESSMENT OF DEMANDS Water demands are reviewed in this assessment for two conditions: • Existing and committed demand without the Project "baseline This provides a baseline condition as of the date of the assessment, consisting of existing land uses, plus development that is already in progress. • Existing and committed demand plus the Project with -- Project COMPARISON OF DEMAND AND SUPPLY Future water demands and supplies, starting in 2005, were compared in two different ways, based on the two projections described above (baseline and with- Project): • On a total annual quantity basis (stated in acre -feet per year (AFY)) • On a peak flow (maximum day) basis (stated in gallons per minute (gpm)) Demand and supply were compared under three climatic conditions: base (normal) conditions and single -dry and multiple -dry year conditions. These conditions are applicable to comparisons of annual demands and not the peak flow demands. Peak flow is a measure of the water delivery system's ability to meet the highest — day demands placed on the system within a given year. Peak demands occur during the hot, dry season and as a result do not vary significantly by dry-year conditions whereas dry year conditions significantly increase total annual demands. For the purposes of this assessment total annual dry -- year demands were assumed to be 7 percent greater than the normal demands. Boeing WSA 4 city of Seal Beach Water Supply Assessment Boeing Space and Communications Specific Plan NEAR -TERM HISTORICAL DEMANDS The following summarizes the actual demands on the City water system for the past five years: Year Groundwater (AF) Imported Water (AF) Total (AF) 1997 3890 240 4130 1998 2850 1050 3900 1999 3110 1014 4124 2000 3160 830 3990 2001 3170 930 4100 SUMMARY OF RESULTS OF DEMANDe-SUPPLY COMPARISONS Listed below are Figures provided in this assessment, comparing projected water demands and supplies under the two development conditions: Figure 1: Normal Year supply and Demand Figure 2: Single Dry -Year Supply and Demand Figure I Multiple Dry -Year Supply and Demand Figure 4: Maximum Day Supply and Demand Notes: 1- Projected demand figures are consistent with the City's latest UWMP -2000. They may have been rounded up in some instance for clarity. Demand figures for year 2002 are actual numbers. Due to local dry year conditions actual demand for year 2002 is higher than normal ar projected demand. Y p Projections for year 2005 and later are normal year demand projections as noted. 2- Single Dry- Year and Multiple Dry -Year supply rgures have been updated based on new information available since the adoption of UVl MP -2000. Boeing WSA 5 City of Seal Beach Water Supply Assessment Boeing Space and Communications Specific Plan Figure 1 Seal Beach Normal Year Supply and Demand 14000 12000 1111 i � O i :111 NMI NONNI Nonni •111 111 1 11 11 1 / 1 1 1 Groundwater Supply i 3 Imported Supply —�-- Demand with Project .*..Baseline Demand (inAcre-Foot) 2002 2005 2410 2015 2020 Current Supplies Imported Supplies 4344 4344 4340 4304 4344 Groundwater Supplies 7200 7200 7200 7200 7200 Total Supplies 11500 11500 11500 11500 11500 Baseline Demand 4250 4200 4310 4420 4580 Demand with Project 4550 4500 4610 4720 4880 Reserve Supply 5050 7000 6800 5780 6620 Boeing WSA 6 City of Seal Beach Water Supply Assessment Boeing Space and Communications Speck Plan Figure 2 Seal Beach Dry-Year Supply and Demand 14000 12000 .. . . �a 10000 a� LpGroundwater 8000 Supply , Imported Supply --.�— Demand with Project I 6000 ....*.Baseline Demand AL cs Q 4000 Ink 2404 0 2042 2005 2010 2015 2020 (in Acre -Foot) 2002 2005 2010 2015 2020 Current Supplies Imported Supplies 4300 4300 4300 4300 4300 Groundwater Supplies 7244 7200 7200 7200 7200 Total Supplies 11500 11500 11500 11500 11500 Baseline Demand 4548 4494 4512 4730 4900 Demand with Project 4859 4815 4933 5050 5222 Reserve Supply 5631 6685 5567 6450 j 6278---1 Boeing WSA 7 City of Seal Beach Water Supply Assessment Boeing Space and communications Specfc Plan Figure 3 Seal Beach Multiple Dry-Years Supply and Demand 14000 12000 10000 pGroundwater Supply 8000 p Imported Supply � ° -.*-Demand - Demand with Project, � � LL 6000 Baseline Demand L Q 4000 1 2000 2002 2005 2010 2015 2020 (in Acre -Foot) 2002 2005 2010 2015 2020 Current Supplies Imported Supplies 4300 4300 4300 4300 4300 Groundwater Supplies 7200 7200 7200 7200 7200 Total supplies 11500 11500 11500 11500 11500 Baseline Demand 4573 4494 4612 4730 4900 Demand with Project 4359 4815 4933 5050 5222 Reserve supply 5631 5585 5557 6450 5278 Boeing WSA 8 City of Seal Beach Water Supply Assessment Boeing Space and Communications Specific Plan Figure 4 Seal Beach Maximum -Day Supply and Demand 8000 7000 6000 5000 ;Groundwater Supply E Imported Supply .. Demand with Project, 3000 --*- Baseline Demand 2000 :a . 1000 0 2002 2005 2010 2015 2020 (in gpm) 2002 2005 2010 2015 2020 Current Supplies Imported Supplies 2700 2700 2700 2700 2700 Groundwater Supplies 4500 4500 4500 4500 4500 Total Supplies 7200 7200 7200 7200 7200 Baseline Demand 4800. 4800 4800 4800 4800 Demand with Project 5150 5150 5150 5150 5150 Reserve supply 2050 2050 2050 2050 2050_J Boeing WSA 9 U►iy U► yea► Oeacr► water zwppiy assessment Boeing Space and communications Speck Plan As shown in the preceding Figures, the City supplies remain constant between normal, single -dry and multiple -dry years. This is due to the fact that groundwater and Metropolitan imported water account for all of the City water supply. Groundwater production. typically remains constant. It may even be increased in cycles of dry years by temporarily increasing overdraft of the basin, as groundwater producers reduce their demand on imported supplies to secure reliability. As to imported water, Metropolitan projects that through the continued implementation of Metropolitan's supplies under development, it can meet 100 percent of its member agencies' supplemental water demands over the next 20 years, even in a repeat of the worst drought. (See below, for information regarding imported water supplies.) GROUNDWATER The water supply resources in Orange County are enhanced by the existence of a large groundwater basin. The City of Seal Beach Water Division operates ground water producing facilities in the Orange County Groundwater Basin ( "Basin „). The City of Seal Beach produces, on the average, 3000 acre -feet of water per year (AFY) from the Orange County groundwater basin. The water is produced by three wells, from an average depth of 800 feet (Table 3). Although there has been some saline intrusion into the upper aquifers of the Basin, it has not affected the strata from which the City wells produce. Water quality is within standards set for acceptable drinking water by the federal government and the California Department of Health Services. • Beverly Manor Well -The well, constructed in 1009, is housed in an enclosed building along -side the two booster pumps referred to as the Beverly Manor Booster. The well pump, driven by a natural gas engine, pumps directly into the Beverly Manor Reservoir. It has a capacity of 2000 gallons per minute (gpm) • Bolsa Chica Well -This well, constructed in 1979, is located on Bolsa Chica Road south of the San Diego Freeway. The well pump can be driven with an electric motor as well as a natural gas engine. The well discharge pressure is maintained by varying the speed of electric motor by means of Toshiba Variable Frequency Drive or by a Murphy controller acting on the natural gas engine. The maximum output into the distribution system is 2500 gpm at 58 psi. • Leisure World Well - Leisure World Well is located behind a fenced enclosure in Leisure World on Beverly Manor Road. The. well pump is driven by an electrical motor. The well pumps into Beverly Manor Reservoir but has the ability to pump directly into the Leisure World Distribution System. Capacity of the well is about 2800 gpm. Boeing WSA 10 (:pry or z5eai beacn water Supply Assessment Boeing Space and Communications Speck Plan • Well No.7 - Well No.7, located on the south side of Westminster Avenue and just east of Seal Beach Boulevard, has not been utilized in recent years and is on "inactive" status. Orange County Water District (OCWD) under the Orange County Water District Act, Water Code App., Ch. 40 (the Act), manages the Basin. The Act empowers OCWD to impose replenishment assessments and basin equity assessments on production and to require registration of water producing facilities and the filling of certain reports; however OCWD is expressly prohibited from limiting extraction unless a producer agrees (Section 40- 2(6)(c )) and from impairing vested rights to the use of water (Section 40 -77). Thus, producers may install and operate production facilities under the Act; OCWD approval is not required. Although the rights of the producers within the Basin vis a vis one another have not bee adjudicated, they nevertheless exist and have not been abrogated b the Act. (Section 40 -77). The rights consist of municipal appropriators rights and may include overlaying and riparian rights. The Basin is described at pages 3 -1 through 3 -14 of the Orange County Water District Master Plan Report, dated April 1999 (MPR) and incorporated herein by reference. The Department of Water Resources (DWR) has identified the Basin as overdrafted in its most current bulletin that characterizes the condition of the Basin, Bulletin 118. Bulletin 118 is currently being updated by. DWR. The efforts being undertaken by OCWD to eliminate long -term overdraft .in the Basin are described in the MPR, including in particular, Chapters 4, 5, 0, 14 and 15 of the MPR. Although the water supply assessment statute (Water Code Section 10910(f)} refers to elimination of "long -term overdraft ", overdraft refers to conditions which may be managed for optimum basin storage, rather than eliminated. The Act defines annual groundwater overdraft to be the quantity by which production exceeds the natural replenishment of the Basin. Accumulated overdraft is defined in the Act to be the quantity of water needed in the groundwater basin forebay to prevent landward movement of seawater into the fresh groundwater body. Seawater intrusion control facilities have been constructed by OCWD since its inception, and have been effective in reventin p 9 landward movement of seawater. These facilities allow greater utilization of the storage capacity of the Basin. OCWD has invested over $250 million in seawater intrusion control (injection barriers); recharge facilities, laboratories, and Basin monitoring to effective) manage . 9 Y g the Basin..Consequently, although the Basin is defined to be in an "overdraft" condition, it is actually managed to allow utilization of up to 500,000 AF or more of storage capacity during dry periods, actin g as an underground reservoir and buffer 9 against drought periods. OCWD stated goal is to operate the Basin to maintain accumulated overdraft of 200,000 AF. If the Basin is too full, artesian conditions can Boeing WSa I I City of Seal Beach Water Supply Assessment Boeing Space and Communications Specific Plan occur in many areas including the coastal zone, causing rising water conditions and water logging, both adverse conditions. OCWD continues to develop new replenishment methods and supplies, recharge capacity and basin protection programs to meet the projected demand from the Basin during normal and drought periods. Groundwater conditions in the Basin are influenced by the natural hydrologic conditions of rainfall, groundwater seepage and stream flow. Groundwater extraction and injection through wells, use of imported water for groundwater replenishment, and water use efficiency practices also influence the Basin. Groundwater is not actually an indigenous source of supply but rather storage of supply that includes natural runoff, treated wastewater, and imported water. Runoff from local rainfall is the main source of recharge for the smaller basins and accounts for some of the recharge of the Basin. The amount of runoff recharge is highly variable and can only be estimated. Most of the recharge of the Basin is from Santa Ana River flow percolated in- stream or diverted to off - stream spreading basins operated by the OCWD. OCWD is responsible for the protection of water rights to the Santa Ana River in Orange county as well as management and replenishment of the Basin. The Basin underlies the north and central area of Orange county. The annual production of the Basin averaged 328,000 acre -feet between 1995 and 1999, generally increasing with time. Santa Ana River base flow is comprised mainly of treated wastewater discharged from treatment plants in Riverside county and San Bernardino County. Thus, about half of the water recharging the aquifer is incidentally recycled wastewater. In addition, OCWD injects about 5,000 AFlyr of recycled wastewater treated from its Water Factory 21 plant into the Basin near the coast as a sea water intrusion barrier. The OCWD recharge operations both expand the production capability of the Basin and prevent seawater intrusion into the aquifers. Production capability of the Basin is being increased by increasing both the recharge supply and the number of production wells for the extraction of water from the Basin. Aquifers that presently store low - quality water (water high in nitrates, salt color, or industrial pollutants) are being pumped, and the produced water is being treated at local water treatment plants or blended with potable water. Drawing out low- quality water and replacing it with high - quality recharge water anticipate aquifer cleanup. The so called "In -Lieu" Program also helps groundwater production and quality by replacing quantities of groundwater with imported water to reduce groundwater pumping in coastal areas. The In -Lieu Program has served as an efficient groundwater replenishment method since the 1970s. currently, the In -Lieu Program Boeing WSA 12 City of Seal Beach Water Supply Assessment Boeing Space and Communications Specific Plan is designated as the Basin Water Supply Management Program under the terms of the 1997 Basin Water Management Agreement with the MWD. OCWD is required to annually investigate the condition of the Basin, assess overdraft and accumulated overdraft, and determine the amount of water necessary for replenishment (Section 40 -77). OCWD has studied the Basin replenishment needs and potential projects to address growth in demand until 2020. This is described in detail in the OCWD MPR. In April, 2002, the Board of Directors of OCWD declared by Resolution No. 02 -4 -53 that the accumulated overdraft as of June 30, 2001 was 328,000 AF and that the estimated annual overdraft for the current water year July 1,2001 to June 30, 2002 was 95,000 AF; and that the estimated annual overdraft for the ensuing water year from July 1, 2002 to June 30, 2003 would be 95,000 AF. With groundwater pumping expected to be around 380,000 AF for the current water year, the basin's accumulated overdraft will significantly increase. In a memorandum dated June 3, 2002 to the OCWD Board of Directors, General Manager Virginia Grebbien stated that the accumulated overdraft would be slightly over 400,000 AF on June 30, 2002. The memorandum further offered three potential solutions to the problem: 1- Modifiy the imported in -lieu program to allow much greater replenishment deliveries to the basin. 2- Develop greater recharge capacity, which would give OCWD the ability to sink larger quantities of imported replenishment water when available. 3 -Lower the Basin Production Percentage (BPP) As of the date of this Water Supply Assessment, it had not been determined what course of action, if any, the OCWD Board of Directors would pursue. It should be noted the Basin is not operated on an annual "safe- yield" basis. (OCWD MPR, Section 3.2). OCWD manages the overdraft to maximize utilization of the Basin for annual production and recharge operations. Overdraft varies over time as the Basin is impacted by availability of recharge water and hydrological cycles. IMPORTED SUPPLY Treated imported water is supplied to the City from the importation and delivery system of the Metropolitan. Metropolitan delivers water through the institutional arrangements with MWDOC at service connection referred as OC -35. MWDOC in turn delivers water supplies to the facilities owned and operated by West Orange County Water Board (VVOCWB), a joint powers agency, of which the City is a member. The City owns 14 percent of the WOCWB facilities with an estimated delivery capacity of 4500 gpm, equivalent to 7435 AFY. The City has not traditionally utilized its full capacity from this source. Therefore, in this assessment only 2700 Boeing WSA 13 City of Seal Beach Water Supply Assessment Boeing Space and Communications Specific Plan gpm, equivalent to 4300 AFY, which represents City's normal usage, has been used for comparison purposes. Metropolitan supplies its member agencies with wholesale imported water provided by the Colorado River Aqueduct and State Water Project system. Metropolitan is the only source of imported water presently available to the City. Water in Southern California is provided through a complex system of infrastructure operated by many different institutional entities. More than 300 public agencies and private companies provide water on a retail basis to approximately 17 million people living in a 5,200 square -mile area. Metropolitan is the primary wholesale provider of imported water for the region. Metropolitan serves 25 member agencies, comprising 14 cities, 11 municipal water districts, and 1 county authority. Metropolitan's member agencies, in turn, serve customers in more than 145 cities and 94 unincorporated communities. Metropolitan was formed in 1928 under the Metropolitan Water District Act "for the purpose of developing, storing, and distributing water" to the residents of Southern California. Metropolitan's initial function was the construction and operation of the Colorado River Aqueduct to supplement local supplies. By the early 19 70s Metropolitan was receiving delivery of imported water from the California Department of Water Resources using the newly constructed State Water Project facilities. The State Water Project (SWP) conveys water from Northern California to areas south of the Sacramento -San Joaquin Delta through a series of rivers, canals, reservoirs, aqueducts, and pumping plants. Water from the SWP originates at Lake oroville, located on the Feather River in Northern California, and subsequently flows into the Sacramento -San Joaquin Delta. From the delta, the California Aqueduct transports the water through the Central Valley and into the Southern California. This system is owned and operated by the State Department of Water Resources (DWR). Colorado River water is conveyed from the California- Arizona border to the metropolitan area via the Colorado River Aqueduct (CRA). Its 242 -mile journey begins from the intakes at Lake Havasu to the terminal reservoir known as Lake Matthews, located near the City of Riverside. The CRA is owned and operated by MWD. Both the Northern California and Colorado River supplies, however, may be facing potential and uncertain reductions. It is projected that the SWP supply to agencies south of the Delta will be reduced due to increased use within the areas of its origin. In the past decade, deliveries from the SWP have been reduced by nearly ten percent in dry years. Moreover, the grooving environmental challenges associated with the San Francisco Bay - Sacramento /San Joaquin Bay Delta (Bay - Delta), such as saltwater intrusion from the San Francisco Bay and the return flow of the Delta agricultural irrigation water, have threatened to degrade the quality of water Southern California receives from the SWP. Contaminants such as bromide, Total organic Boeing WSA 14 LoILy u, JWdr Dt�dcn vvarer Jupply Assessmenr Boeing Space and Communications Speck Plan Carbon, and pathogens are a small sampling of water quality concerns over SWP water. Southern California is also facing major cutbacks in the water supply traditionally drawn from the Colorado River. This resource will undergo reductions as result of U.S. Supreme Court decision. Under a 1922 agreement, California is allowed 4.4 million acre -feet of water each year from the Colorado River. over a period of time, however, the State has been diverting un- utilized and surplus water when it has been available. California has relied on this "extra" water, as it has had to contend with the growing demands of the region. During the last five years, California water agencies with rights to the Colorado River (including Metropolitan) have averaged 5.2 million acre -feet annually. Due to increased demand and competition from the six other states that draw from the river, California has now been obligated to develop a water plan to stay within the state's 4.4- million acre -foot apportionment. The proposal balances storage programs with increased conservation efforts and water transfers. Imported water supplies are subject to availability. To assist local water providers in assessing the adequacy of local water supplies that rely in whole or in part on Metropolitan imported supply, Metropolitan has provided information concerning the availability of the supplies to its entire service area. This report, entitled "Report on Metropolitan's Water Supplies" (February 11, 2902) ( "Metropolitan Report"), is consistent with Metropolitan's Regional Urban Water Management Plan (December, 2900) ( In order to assure supply reliability for its service area, Metropolitan has developed its Water Resource Strategy. The key elements of Metropolitan's strategy are: • Portfolio of Diversified Supplies: Metropolitan continues to develop a portfolio of diversified su pp lies. The diverse water project investments reduce the risk of failure in any single part of the portfolio. Risks stem from cost, quality, or supply availability. It also reduces the potential impact of a severe drought or an emergency such as a major earthquake. The portfolio of diversified supplies avoids the pitfalls of "putting all your eggs in one basket. Supply Reserves to Mitigate Uncertainties: Metropolitan plans to mitigate for supply uncertainties by continuing to secure su pp lies and build infrastructure improvements that are available in advance of the time of need and can provide back up capabilities. This adaptive management approach creates supply reserves that maintain Metropolitan's flexibility in responding to changes in demand and supply conditions. • New Rate Structure: Metropolitan's Board of Directors approved a new rate structure in October 2001. The rate structure provides the necessary financing capabilities to support the Integrated Resources Plan (IRP) and strategic planning vision that Metropolitan is a regional provider of services, maintains the reliable delivery of imported water supplies, encourages the development of additional local supplies like recycling and conservation, and Boeing WSA 15 City of Sea! Beach Water Supply Assessment Boeing Space and Communications Specific Plan accommodates a water transfer market. Through its regional services, Metropolitan ensures a baseline of reliability and quality for imported water deliveries in its service area. By unbundling its full - service water rate, Metropolitan provides greater opportunity for member agencies to competitively manage their supplies and demand to meet future needs in a responsible, cost effective manner. • Implementing water management p ro rams that su ort the development of cost - effective local resources: Metropolitan has established and implemented programs to provide financial incentives to member agencies in the development of local resources. These programs include the Local Projects Program (water recycling and groundwater recovery), Conservation Program, and Request- for - Proposal process for ocean desalination projects. These programs are meeting the resource objectives in the IRP. The status and progress of Metropolitan's efforts in implementing programs to support the development of conservation and focal resources management programs are documented in Metropolitan's RUWMP and Metropolitan's Annual Progress Report to the California State Legislature on Achievements in Conservation, Recycling and Groundwater Recharge, dated February 1, 2002. • Securing additional imported supplies through-- programs that increase the availabilily of water delivered through the Colorado River A ueduct and the California A ueduct: Metropolitan has implemented several programs to continue the reliable deliveries of water supplies through the Colorado River Aqueduct, the California Aqueduct and the development of in -basin groundwater storage. These efforts include participating in federal and state initiatives such as the California Water Use Plan for the Colorado River, CALFED for the Bay - Delta, and the Sacramento Valley Water Management Agreement. Beyond these initiatives, Metropolitan has acquired additional supplies through cooperative agreements and business partnerships with entities in the central Valley and within the Colorado River system to implement water transfers, storage, conservation and land management programs. Finally, in accordance with Metropolitan's IRP and Strategic Plans, Metropolitan and the member agencies have moved ahead in maximizing the use of available water supplies through in -basin groundwater conjunctive use programs. The status and progress of Metropolitan's efforts in implementing programs to secure additional supplemental imported water supplies are documented in the Metropolitan's RUWMP and the document entitled, "Report on Metropolitan's Mater Supplies" (Metropolitan Report) • Providing the infrastructure needed to integrate imported and local sources of supply: Metropolitan's Capital Investment Plan (CIP) includes projects Boeing WSA 16 City of Seal Beach Water Supply Assessment Boeing Space and Communications Speck Plan that have been identified from its studies of projected water needs that are embodied in Board - approved documents such as the IRP, Distribution System overview Study, and the Chief Executive Officer's Business Plan. The identification, assessment and prioritization of 155 reliability and rehabilitation projects have been completed in the CIP. The status and progress of Metropolitan's infrastructure improvements are documented in Metropolitan's CIP. This plan is presented to Metropolitan's Board of Directors as part of the annual budget review. Establishing a comprehensive mans ement plan for dealing-----with _period ic su lus and shortage conditions: In April 1999, Metropolitan's Board of Directors adopted the Water Surplus and Drought Management Plan (WSDM Plan). This plan will guide the management of Metropolitan's water supplies during surplus and shortage conditions to achieve the reliability goals of the IRP. The establishment of a comprehensive management plan for dealing with periodic surplus and shortage conditions is documented in the RUWWMP and Metropolitan Report No. 1159, Water Surplus and Drought Management Plan. Approach The approach to evaluating the availability of Metropolitan's supplies involves three basic steps: (1) forecast supplemental water demands, (2) assess Metropolitan's supply capabilities, and (3) compare the supplemental demand forecasts and supply capabilities. Demand Forecasts Water demands on Metropolitan are projected according to four key parameters: retail demands, local replenishment demands, local supplies, and Metropolitan system storage requirements. The methodology and estimates of water demand projections are documented in Appendix "A" of the Metropolitan Report. Boeing WSA 17 City of Seal Beach Water Supply Assessment Boeing Space and Communications Specific Plan Demands on Metropolitan (million acre -feet) Demands on Metropolitan (Average Year) 2005 2010 2015 2020 MWD RUWMP' 1.90 1.95 2.08 2.30 Member Agencies Plans 1.68 1.82 1.94 2.09 Difference 0.22 0.13 0.14 0.21 11% 1 7% 1 7% 9% I Based on Metropolitan's Regional Urban Water Management Plan adopted in December 2000. 2 Based on Metropolitan review of urban water management plans submitted by member agencies in December 2000. Supply .Ca „pabil, ties Metropolitan's supply capabilities are the expected quantities of water that can be provided by specific supply programs included in Metropolitan's resource plan. Supply capabilities presented in this report vary according to year types (wet, average, and dry hydrologic conditions). In order to determine Metropolitan's supply capabilities, available sources of supply have been inventoried and the associated supply yields have been estimated. The supply inventory and yields are documented in Appendices "A , "B ", and "C" of the Metropolitan Report. Supply Inventory: Metropolitan's available supplies are diverse and include historical SNAP deliveries, Colorado River deliveries (according to Federal apportionments and guidelines), water transfers and exchanges, storage and groundwater banking programs, and State and Federal initiatives (such as the California Water Use Plan for the Colorado River and Delta Improvements). These programs have been inventoried according to the manner in which they are delivered to Metropolitan's system. These categories of delivery are: (1) Colorado River Aqueduct Deliveries, (2) California Aqueduct Deliveries, and (3) I nmBasin Storage Deliveries. Supply Capabilities: The maximum supply capability of each of the resource programs has been estimated for various hydrologic events that occur in years 2005, 2010, 2015, and 2020. The hydrologic events include a multiple year dry period (repeat of 1990-92 drought), a single dry year (repeat of 1977 below- normal conditions), average year (statistical average), and wet year (repeat of 1985 above - normal condition). The expected supply capability has. been estimated according to two key considerations. Boeing WSA 18 City of Seal Beach Water Supply Assessment Boeing Space and Communications Speck Plan (1) Simulations of deliveries from the Colorado River Aqueduct, California Aqueduct and in -basin storage. The historical sequence of 77 hydrologic years from 1922 to 1998 are repeated into the future in order to determine the Metropolitan's water delivery capabilities under the weather and system operating conditions for the year types. (2). Deliveries based on historical record, written contracts or other proof, financing, and federal, state, and local permits /approvals to the extent each is applicable. Supply Sufficient). The demand forecasts and supply capabilities have been compared over the next 20 years and under varying hydrologic conditions. These comparisons determine the supplies that can be reasonably relied upon to meet projected supplemental demands and to secure reserves that can P rovide a "margin of safety" to mitigate against uncertainties in demand projections and risks in implementing supply programs. Boeing WSA } 9 City of Seal Beach Water Supply Assessment Boeing Space and Communications Speck Plan Metropolitan's Water Supplies Colorado River „Aqueduct Deliveries Currently Available: Base Apportionment (Priority 4) IID /MWD Conservation Program Interim Surplus Guidelines (ISG) /Priority 5 Apportionment Off Aqueduct Storage — Hayfield Storage Program — Central Arizona Banking Demonstration Under Development: Coachella & All- American Canal Lining Projects SDCWAIIID Transfer PVI D Land Management Program Off-Aqueduct Storage/Transfer Programs - Cadiz Groundwater Storage and Dry -Year Supply Program Lower Coachella Valley Groundwater Storage Program Upper Chuckwalla Storage Program - Central Arizona Banking Program California Aqueduct deliveries Currently Available: SWP Deliveries (Based on historical record) San Luis Reservoir Carryover Advance Delivery with Coachella Valley WD and Desert WA Semitropic Water Banking and Exchange Program Arvin - Edison Program Water Management Program San Bernardino Valley MWD Program Spot Market Transfers (Purchased on as- needed basis) Under Development: Delta lmpro vem en is Kern Delta Water District Program Additional Transfers /Storage (San Bernardino Conjunctive Use Program, Westside Valley transfers, and Eastside Valley Transfers) In -Basin Storage Deliveries Currently Available: Diamond valley Lake (DVL) Flexible Storage in Castaic Lake and Lake Perris Groundwater Conjunctive Use Programs Long -Term Seasonal Storage Program - North Las Posas Storage Program Under Development: Groundwater Conjunctive Use Programs - Raymond Basin Storage Program Proposition 13 Storage Programs r Additional Programs Boeing WSA 20 City of Seal Beach -Water Supply Assessment Boeing Headquarters Development Findings The availability of Metropolitan's water supplies is determined by comparin g total projected. water demand and the expected water supply over the next 20 years. These comparisons are shown in the following graphs and tables. They demonstrate that there are sufficient supplies that can be reasonably relied upon to meet projected supplemental demands and that there are additional reserve supplies that could provide a "margin of safety" to mitigate against uncertainties in demand projections and risks in fully implementing all supply programs under development. In summary, this analysis finds that current practices allow Metropolitan to bring water supplies on -line at least ten years in advance of demand with a very high degree of reliability. If all imported water supply programs and local protects proceed as planned, with no change in demand projections reliability could be assured beyond 20 years. Boeing WSA 21 City of Seal Beach Water Supply Assessment Boeing Headquarters Development Multiple Dry -Year Supply Capability & Projected demands 4.0 3.s 3.0 ._ 2.s r. L 2.0 CL C E to o.s velopment 2005 2010 2015 2020 Supply Capability) & Potential Reserve or Replenishment 2005 2010 2015 2020 (acre-feet Der vear) Current, Supplies Colorado River2 99200 1,131,800 1 ,183,000 824,000 California Aqueduct3 960,300 1,016,100 9861100 964,300 In -Basin Storage 336,700 390,000 3905000 3905040 Su lies Under Deve!o meet Colorado Riverz 217,500 118,200 679000 430,000 California Aqueduct3 505000 2455000 44004 440,000 In -Basin Storage4 - 99,100 2005000 2043000 Maximum Supply Ca abiii •' P t � 557 1 ?300 3,000,200 3,266,100 3,240,300 Total Demands on Metropolitans 291999300 24519700 2,3609700 29572,500 (Firm & Replenishment) Potential Reserve & System Replenishment 358,000 748,500 9059400 667,800 SuPPIy 1 -- Represents expected supply capability for resource programs. 2— Total Colorado River Aqueduct Deliveries are limited to CRA capacity ( 1,250,000 acre -feet per year) and include federal apportionments and guidelines, water conservation, water transfers and storage programs 3— Total California Aqueduct Deliveries include historical SWP deliveries, water transfers/exchanges, storage programs and delta improvements 4— Total 1n -Basin Storage Deliveries include reservoir storage and groundwater conjunctive -use programs within Metropolitan's service area. 5— Based on SCAC 98 RTP, SANDAL 1998 forecasts and member agency projections of local supplies Boeing WSA 22 City of Seal Beach -Water Supply Assessment Boeing Headquarters Development 4.0 3.5 3.0 to 2.5 CL t 2.0 .E 1.0 0.5 Single Dry -year Supply Capability & Projected Demands (1977 Hydrology) 2005 2010 2015 2020 elopment Supply Capability) &Potential Reserve or Replenishment Maximum Supply Ca abili ' 2,295,300 216099400 2,934,3U0 2,930,31�1� P ty Total Demands on Metropolitans 21093,101 2,145,004 2,2709900 2 494 900 (Firm & Replenishment) Potential Reserve & System Replenishment 202400 464,400 6599400 435,400 Supply 1 -- Represents expected supply capability for resource programs. 2— Total Colorado River Aqueduct Deliveries are limited to CRA capacity (1,250,000 acre -feet per year) and include federal apportionments and guidelines, water conservation, water transfers and storage programs 3— Total California Aqueduct Deliveries include historical SwP deliveries, water transfers/exchanges, storage programs and delta improvements 4— Total in -Basin Storage Deliveries include reservoir storage and groundwater conjunctive -use programs within Metropolitan's service area. 5— Based on SCAG 98 RTP, SANDAL 1998 forecasts and member agency projections of local supplies). Boeing WSA 23 2005 2010 2015 2020 acre -feet Rer ear Current Supplies Colorado River 1,250,000 15,151,800 8705000 87000 California Aqueduct 625,300 625,300 6509340 650,300 In -Basin Storages 3 70,000 390,000 390,000 390,000 Supplies Under Development Colorado River - 683,200 3805000 3805000 California Aqueduct 50,004 245,000 440,000 440,000 In -Basin Storage - 99,100 204,000 20000 Maximum Supply Ca abili ' 2,295,300 216099400 2,934,3U0 2,930,31�1� P ty Total Demands on Metropolitans 21093,101 2,145,004 2,2709900 2 494 900 (Firm & Replenishment) Potential Reserve & System Replenishment 202400 464,400 6599400 435,400 Supply 1 -- Represents expected supply capability for resource programs. 2— Total Colorado River Aqueduct Deliveries are limited to CRA capacity (1,250,000 acre -feet per year) and include federal apportionments and guidelines, water conservation, water transfers and storage programs 3— Total California Aqueduct Deliveries include historical SwP deliveries, water transfers/exchanges, storage programs and delta improvements 4— Total in -Basin Storage Deliveries include reservoir storage and groundwater conjunctive -use programs within Metropolitan's service area. 5— Based on SCAG 98 RTP, SANDAL 1998 forecasts and member agency projections of local supplies). Boeing WSA 23 City of Seal Beach -Water Supply Assessment Boeing Headquarters Development elopment Supply Capability) &Potential Reserve or Replenishment 2005 Avera e- ear Supply Capabilitf 2020 Current Supplies & Projected Demands 4.0 Colorado Ri,ver2 15089,300 850,900 Demands on MWD 6735000 California Aqueduct 3.5 197831200 197239900 11,7141,900 In -Basin Storage - 3.0 - Supplies Under Development Su pfies U der w 15 N California Aqueduct 20,000 65,000 rML 2.0 In -Basin Storage4 Ce Maximum Supply Ca abili ' P ty 3 050 80 � 0 39057,804 311529100 29996,600 Total Demands on �.5 ryr�: a,y 4\ Ffi' 199019400 E ... 1. 2,3901000 dz- Cu rent Su ON 0.5 Potential Reserve & System Replenishment 11149,400 19114,000 190759500 .: k. .. �? '� . . . . . . . . . . . Supply 2005 2010 2015 2020 elopment Supply Capability) &Potential Reserve or Replenishment I -- Represents expected supply capability for resource programs. 2— Total Colorado River Aqueduct Deliveries are limited to CRA capacity (1,250,000 acre -feet per year) and include federal apportionments and guidelines, water conservation, water transfers and storage programs 3— Total California Aqueduct Deliveries include historical SWP deliveries, water transfers/exchanges, storage programs and delta improvements. 4— Total In -Basin Storage Deliveries include reservoir storage and groundwater conjunctive -use programs within Metropolitan's service area (See Appendix D). 5— Based on SCAG 98 RTP, SANDAL 1998 forecasts and member agency projections of local supplies. Boeing WSA 24 2005 2010 lin acre -feet 2015 er year 2020 Current Supplies Colorado Ri,ver2 15089,300 850,900 81%540 6735000 California Aqueduct 1,780,800 197831200 197239900 11,7141,900 In -Basin Storage - - - Supplies Under Development Colorado River2 160,700 3685700 3885700 388,700 California Aqueduct 20,000 65,000 2205000 22000 In -Basin Storage4 - Maximum Supply Ca abili ' P ty 3 050 80 � 0 39057,804 311529100 29996,600 Total Demands on Nletropolltans 199019400 199539800 2,076,500 2,3901000 (Firm & Replenishment) Potential Reserve & System Replenishment 11149,400 19114,000 190759500 5069600 Supply I -- Represents expected supply capability for resource programs. 2— Total Colorado River Aqueduct Deliveries are limited to CRA capacity (1,250,000 acre -feet per year) and include federal apportionments and guidelines, water conservation, water transfers and storage programs 3— Total California Aqueduct Deliveries include historical SWP deliveries, water transfers/exchanges, storage programs and delta improvements. 4— Total In -Basin Storage Deliveries include reservoir storage and groundwater conjunctive -use programs within Metropolitan's service area (See Appendix D). 5— Based on SCAG 98 RTP, SANDAL 1998 forecasts and member agency projections of local supplies. Boeing WSA 24 City of Seal Beach -Water Supply Assessment Boeing Headquarters Development Metropolitan has documented sufficient currently available supplies to meet 100 percent of its member agencies supplemental water demands for 20 years under average — demand conditions, for 15 years under multiple dry-year conditions (with 7 -12 percent reserve capacity), and for 10 years under single dry -year conditions (with 7 -24 percent reserve capacity. With the addition of supplies under development, Metropolitan will be able meet 100 percent of its agencies water needs under all supply and demand conditions throughout 2020 with 15 to 20 percent reserve capacity. For further details please refer to the Metropolitan Report. Boeing WSA 25 BOEING SPACE AND COMMUNICATIONS GROUP SPECIFIC PLAN 2201 Seal Bearb Blvd. Seal Beacb, C4 90 74 0 Prepared for. STONECREEK COMPANY. 30322 EsPeranm Ave, Suite 200 Rancho SantaAlargadto. Gl 92MS Project Engineer. JT Feat, Pb, D., P. E Pr pared FuscoE ENGINEERING,, INC. Date Prepared: June 2002 16795 Von Kannan Avenue. Suite 100 .date Rev isec h ,Vay-cb 1-2,2003 inine, CA 92W) (949) 4774-1960 N. 523-01.01 itim-fuscoexom Water Quality Assessment Deport Boeing, Seat Beach March, 2003 Table of Contents •.r EXECUTIVE SUMMARY........ ■.w•........r......... ra.• rr. .......a■•..... ■..r.0r.r....... 000. ►.......0.a.r0.....wr.r.....a.0 iff I. INTRODUCTION.. ■..80.000...0.0.00.0.0.....00.• 0000. 000.00.. 0000...■ r..•....0. 86• a0.....■ a■■ a0r ....0...a.0.0...0.08r.0r....• 1 1.1 Purpose ................................................................................................... ..............................1 1.2 Water Quality Regulations ..................................................................... ..............................1 1.3 Project Location .................................................................................... ............................... 2 II. EXISTING CONDITIONS. good 00000000 a 666009000904 000000 m0000es0009oo os0000 ........r.see* 2 2.1 Existing Land Use ................................................................................. ............................... 2 2.2 Water Quality Assessment for Existing Conditions .............................. ............................... 3 I11.. PROPOSED CONDITIONS w......... r ........................ w............................ ........a.....................w 4 3.1 Proposed Land Use.. ......... & ...... 000006 ...... 00.006*6 ....... .................... 0 0 0 0 ................... 0 0 0 0 ... 4 3.2 Proposed Groundwater Conditions ..... ... ..... ..... ... .... 5 0000. 0000... ........ .................... ........ 0000.. 0000.. 3.3 Water Quality Assessment for Proposed (Developed) Condition ......... ............................... 5 IV. PROPOSED MITIGATION FEATURES ■.■. 0 ..............• r.....■... a• r•■ w.....■ •r0.r......0.r........00.w....• 7 4.1 ..... 7 Objectives 0000 ..... .................................................................. ............................... 4.2 Source Control . ...................................................................................... ............................... 7 4.3 Treatment Controls ................................................................................ ............................... S 4.4 Water Quality Assessment for Mitigated Conditions ......................... ............................... 11 V. MONITORING PROGRAM a■• 0rr■...•■.. a. 0. w.•■.... w......•.... 00■■..■•... 0.. 0..•.■ ■.rerr.........r.r.......r.r..■ 12 VI. CONCLUSION.•.... 0. r.•.••. 0rw......... rrr. .. ■•.■•.■..r•• ■• ■.r....•.a•..a. 0000. w... 0......•.... a ..r.•.....0..rrw.........ra...a 13 VII. REFERENCES .... ................................................... .....,......................... ...........8.................13 Boeing Space and Communications Group -i- Specific Plan Water Quality Assessment Report Boeing, Seal Beach March, 2003 List of Figures Figure I Project Vicinity Map Figure 2 Existing Land Use Map and Planning Areas Figure 3 Proposed Water Quality Control Plan Boeing Space and Communications Grou p -ii- Specific Plan Water Quality Assessment Report .Boeing, Seal Beach March, 2003 EXECUTIVE SUMMARY This report provides a water quality assessment of the Boeing development project in the City of Seal Beach. The main purpose of the report is to assess the water quality and storm water impacts from the proposed development project and provide mitigation measures. The sizing and location of all facilities identified in this report have been estimated for planning purposes only and are subject to refinements in the final design of the project. The final design is subject to the approval of the City Engineer. The Boeing site is a 107 -acre project consisting of four distinct planning areas. For each planning area (PA), water quality mitigation measures will be incorporated at the time of development. This water quality assessment report will refer to PA -2 and PA -3 together as PA -3 for the remainder of the report. PA -3 is a 61 -acre parcel consisting of primarily undeveloped land with some existing hardscape and Boeing facilities. The proposed land development plan for PA -3 is a business park and will include off -site improvements such as the widening of Adolfo Lopez Drive. The project will incorporate design features to accommodate and improve the quality of storm water runoff from the 61 -acre business park site and the 12 -acre off -site area (Accurate Metals, Adolfo Lopez Drive, City Maintenance Facilities, Police Station, Animal Shelter and open space property west of the Animal Shelter). None of the "first flush" surface runoff (storm runoff and urban runoff) from the project drainage area, including off -site drainage (a total of 73 acres) will discharge into receiving water bodies (Los Alamitos Retarding Basin) without adequate water quality treatment. The design objective and guidelines of the proposed [Water Quality Treatment Plan comply with the Santa Ana Regional Water Quality Control Board ( "RWQCB ") regulations, California Coastal Commission (CCC) requirements for new development and redevelopment and the California Best Management Practices ("BM.Ps") for urban runoff. .•'The existing storm drain system in PA -1 will be modified to allow for the first -flush treatment requirements for redevelopment. The northern portion of PA -1 (approximately 21 acres of parking lot) will be re- routed around PA -3 to the Los Alamitos Retarding Basin (LARB) to avoid interference with the storm water treatment facilities of PA -3. A storm water device designed to remove parking lot pollutants from the parking areas will be installed in the modified storm drain system to treat first flush sizing requirements. The remaining 17 acres of the existing Boeing Campus area ire PA -1 will drain through a separate storm water device before discharging into the central drainage ditch. Any future development of PA -1 will incorporate additional water quality design features to treat pollutants from the proposed land use within its own development area. PA-4, a proposed hotel and retail development area, will undergo a three- pronged approach to storm water management including site design, source control and treatment control BMPs during the design stage of the area and will be documented in a water Quality Management Plan subject to approval of the CCC and the City of Seal Beach. The proposed land use will incorporate water quality design features within its own area consisting of such measures as on- lot infiltration, landscaping filtration areas and structural storm water devices to meet the treatment control BMP requirements from the Santa Ana RWQCB and the CCC. Boeing Space and Communications Group_ -iii- Specific Plan Water Quality Assessment Report Boeing, Seal Beach March, 2003 Currently, the off-site areas located along Seal Beach Boulevard (Blvd) and Adolfo Lopez Drive, including Accurate Metals, the City Police Station, the City Maintenance Facilities, the Animal Shelter and the open dirt area west of the Animal Shelter, drain north and. northwest into the proposed project site before discharging into the LARK. Under the proposed conditions, the Accurate Metals facility will continue to drain into the project site, while runoff from Adolfo Lopez Drive, the City Maintenance Facilities, the City Police Station, the Animal Shelter and open space adjacent to the Animal Shelter will be intercepted and re- routed through a separate storm drain system. The new storm drain system will extend from the end of Adolfo Lopez Drive into the LARB or Boeing property, dependent upon the final design and approval of the City Engineer. The runoff from Adolfo Lopez Dr. and the associated facilities will be treated by storm water devices to remove the pollutants of concern. In addition, a storm water treatment device will be installed at the southeastern project boundary to treat the Accurate Metals runoff before discharging into the proposed project. The proposed Storm Water Management Plan includes the following water quality control features: • Structural storm water BMP devices to prevent parking lot and building pollutants from entering the center and south drainage conveyance ditches. • Two multi- purpose water quality /detention basins sized to detain the first flush and treat nutrient and microbial contaminants from PA -3. By utilizing the structural BMPs and water quality basins, urban runoff pollutants will be significantly reduced to meet the objectives and beneficial uses set by the Santa Ana RWQCB (SARWQCB) and the water quality design requirements for new development and redevelopment set by the Coastal Commission. ,Boeing Space and Communications Group -iv- Specific Plan Water Quality Assessment Report Boeing, Seat Beach March, 2003 I, INTRODUCTION 1.1 PURPOSE The purpose of this water quality assessment report is to assess the development impacts related to water quality and provide mitigation measures to address these impacts. This report includes an overview of the regulatory setting and a Storm Water Management Plan to address water quality and storm water runoff. The sizing and location of all facilities identified in this report have been estimated for planning purposes only and are subject to refinements in the final design of the project. The final design is subject to the approval of the City Engineer. 1.2 WATER QUALITY REGULATIONS Federal and State laws have been enacted which establish requirements for adequate planning, implementation, management and enforcement for the control of water quality in waters of the United States. The primary state law, the Porter - Cologne Water Quality Control Act of 1969, establishes a regulatory program to protect water quality and to protect the beneficial uses of the state waters and establishes the State of California Water Resources Control Board and 9 Regional Water Quality Control Boards (RWQCB) as the principal state agencies responsible for the control of water quality. The Santa Ana RWQCB (SARWQCB), under the authority of the State Water Resources Control Board, has the authority for permitting waste discharges to land or surface waters through a National Pollution Discharge Elimination System (NPDES) permit and also formulates and adopts a Basin Plan for the Santa Ana Region that defines water quality objectives and beneficial uses. The Santa Ana Basin Plan sets narrative and numerical objectives that must be attained (or maintained) and describes implementation programs to protect all waters in the region. The NPDES storm water management program also calls for the implementation of Best Management Practices (BMPs) to the "maximum extent practicable" (MEP) in providing control for non -point source pollution and urban runoff. BMPs consist of activities, practices and/or procedures that reduce non -point sources of pollution such as automotive by- products, trash, food wastes, landscape and agricultural runoff, including fertilizers and pesticides, and runoff from construction sites. On January 18, 2002, the SARWQCB adopted the Orange County Municipal NPDES Storm Water Permit for the northern portion of Orange County (San Diego RWQCB jurisdiction covers the remaining portion of Orange County). The new permit updates water quality standards for new development and these standards have been incorporated and applied to this project. These updated standards include numerical sizing criteria for water quality treatment and proper monitoring and maintenance of storm water facilities. Numerical sizing criteria specifically states that a certain quantity of first flush runoff shall be treated to remove the pollutants of concern (those introduced by the project) to Boeing Space and Communications Group -1- Specific Plan Water Quality Assessment Report Boeing, Seal Beach March, 2003 the MEP. The permit supports the use of bio- swales, detention ponds, infiltration landscaping, constructed wetlands and structural BMP devices as means for meeting the MEP and best available technology (BAT) requirements. The Coastal Commission is responsible for protecting water quality in coastal environments as defined under Sections 30230 and 30231 of the California Coastal Act. These water quality provisions provide a broad basis for protecting coastal waters, habitats and biodiversity associated with new development and redevelopment projects. To meet the objectives of Sections 30230 and 30231, the Commission supports a three - pronged approach to water quality management: site design, source control and treatment control BMPs. Each of these components will be discussed within this water quality assessment report. The CCC and the SARWQCB recognize the same sizing criteria for treatment control BMPs for stormwater (e.g. 85th percentile of a 24 -hour storm event) and the proposed project will demonstrate that the appropriate BMPs have been incorporated into the site design. 1.3 PROJECT LOCATION The Boeing property is a 107 -acre site located in the City of Seal Beach in north Orange County. The site is bounded to the north by Westminster Avenue, Seal Beach Boulevard to the east, the Los Alamitos Retarding Basin (LARB) to the west and Adolfo Lopez Drive to the south. Figure 1 shows the project location map. The project receives runoff from drainage areas located south and southeast of the development site along Seal Beach Boulevard and Adolfo Lopez Drive. Accurate Metals, a light industrial facility, is located between the southeastern corner of the project site and Seal Beach Blvd. Traveling east to west along the southern project boundary (Adolfo Lopez Blvd), there exists a City of Seal Beach Police Station, City of Seal Beach Maintenance Facilities, an Animal Shelter and open space westerly of the Animal Shelter. Under the existing condition, these facilities all drain into the project site before discharging into the Los Alamitos Retarding Basin (LARK). The combined off -site drainage area is approximately 12 acres in size (5.8 acres along Adolfo Lopez Drive, 5.2 acres for Accurate Metals). II. EXISTING CONDITIONS 2.1 EXISTING LAND USE The project site currently exists as the headquarters for day -to -day operations of the Boeing Space and Communications Group. Roughly 38 acres of the 107 -acre site exists as a dirt field in the western portion of the site that contains three man -made soft -bottom drainage ditches for conveyance of urban and storm water runoff from the existing hardscape (i.e. parking lots, buildings, etc.) to the LARB. Boeing Space and Communications Group -2- Specific Plan Water Quality Assessment Report Boeing, Seal Beach March, 2003 Existing land uses for the area surrounding the south and southeastern project boundaries include an Animal Shelter, open space westerly of the Shelter, a City of Seal Beach Police Station, City of Seal Beach Maintenance Facilities, and the Accurate Metals light industrial facility. Figure 2 shows the existing land use map. 2.2 WATER QUALITY ASSESSMENT FOR EXISTING CONDITIONS The 107-acre Boeing property is divided into two main components. The developed area consists of approximately 69 acres of parking lots, buildings, landscaped and hardscaped areas. This property contributes storm water runoff, non -storm flow runoff and pollutants associated with development such as total suspended solids (TSS), heavy metals, brake dust, hydrocarbons, trash, debris, nutrients (nitrogen and phosphorus) and pesticides. All runoff is conveyed through the three drainage ditches before discharging into the LARB. Typically, dry season runoff' or nuisance flows meander through the drainage ditches, percolating into the soil and/or evaporating before discharging into the LARK. observations have shown that there is sufficient nuisance flows in the central ditch to provide standing water throughout much of the year in depression points in the ditch. The ditches provide water quality .treatment for low -flow events. During storm events, water is flushed through the ditches to the LARB and based on empirical evidence, concentrations of pollutants typically decrease with the larger volumes of flow. The remaining portion of the property (3 8 acres) is an undeveloped dirt field. This area contributes primarily sediment and TSS to the drainage ditches during storm events. The property receives off -site runoff from approximately 12 acres consisting of the bordering Animal Shelter, City Police Station, and City Maintenance Facilities adjacent to Adolfo Lopez Drive (6.8 acres) and the Accurate Metals property (5.2 acres). Such runoff' may contribute pollutants related to these types of facilities such as nutrients, bacteria and hydrocarbons. Table 1 shows the most significant pollutants expected for each land use. Table 1: Summary of Pollutants: Existing Condition Land Use Acreage Expected Pollutants Developed (Industrial) 69 TSS, heavy metals, trash, debris, hydrocarbons, brake dust, pesticides Undeveloped (Dirt field) 38 Sediment, TSS, bacteria and nutrients Off- -site Runoff 12 Trash, debris, TSS, nutrients, bacteria, hydrocarbons Boeing Space and Communications Group -3- Specific Plan Water Quality Assessment Report Boeing, Seal Beach March, 2003 III. PROPOSED CONDITIONS 3.1 PROPOSED LAND USE The proposed development of the Boeing property will take place in several phases. The first phase includes the development of PA -3, the 61 -acre property adjacent to the LARB. This development represents the most significant portion of the project because it has the greatest impact to water quality and flood detention. Development of PA -3 into a business park will result in an increased impervious surface of roughly 38 acres, thereby increasing surface water runoff and any associated pollutants introduced with the new development. The first component to water quality management involves site design. Site design objectives include a combination of factors that may include: minimization of impervious surfaces including roads and parking lots; preservation of native vegetation and root systems; minimization of erosion and sedimentation from susceptible areas; preservation of wetlands, riparian corridors, and buffer zones and establishment of reasonable limits on the clearing of vegetation from the project site; incorporation of water quality wetlands, biof ltration swales, etc. where measures are likely to be effective and technically and economically feasible; and minimization of impacts from storm water and urban runoff on the biological integrity of natural drainage systems and water bodies. During the conceptual site design phase, these objectives were analyzed within the constraints of the existing campus and proposed land use and were incorporated into the project where feasible. A summary of the incorporated site design measures includes: • Preservation of the central "man- made" drainage ditch and the associated wetland habitat • Restoration and enhancement of the south "man- made" ditch • Mitigation and on -site relocation of the Southern tarplant species from the north drainage ditch • Minimization of impervious surfaces within the development area, allowing for water quality treatment basins to treat and control pollutants from entering the LARK (> 2 -acre footprint) • Preservation of historical drainage patterns • Minimization of directly connected impervious areas (DClAs) by utilizing landscaped areas for roof drainage where feasible The remaining property will be left largely untouched with the exception of the retail/hotel site proposed in the northeast corner of the property adjacent to Westminster Boulevard (PA -4). Development of this area will not result in any significant impacts to surface runoff or water quality because the site is an existing parking lot that contributes related pollutants (see Table 1) to runoff during storm events. Any modifications to the site will incorporate water quality treatment into the design phase thereby improving storm water quality from the existing condition. Boeing Space and Communications Group -4- Specific Plan Water Quality Assessment Report Boeing, Seal Beach March, 2003 % Under the proposed conditions off -site drainage from Adolfo Lopez that previously drained into the project site will be split into two drainage patterns under the proposed conditions. Runoff from Accurate Metals will be treated by a storm water treatment device before discharging into the water quality basin adjacent to the south ditch. Runoff from the remaining drainage area of Adolfo Lopez will be treated by a separate storm water device prior to discharging through a separate storm drain system directly into the LARB or proposed project, dependent upon the final design. The potential improvements and land use changes planned for the City properties along Adolfo Lopez Drive are outside of the project boundary and do not influence the proposed project. 3.2 PROPOSED GROUNDWATER CONDITIONS The proposed project will not install any wells to withdraw groundwater for any water usage. The project includes water quality treatment basins to permit the filtering of the urban runoff for water quality purposes. The urban runoff will infiltrate into the ground and undergo natural biological and chemical processes to remove pollutants. The proposed water quality treatment basins will include a perforated sub -drain system into the LARB to prevent any potential groundwater contamination through the first flush event. The proposed project will contribute clean and filtered runoff to groundwater recharge. Thus, impact on groundwater quality is considered less than significant. 3.3 WATER QUALITY ASSESSMENT FOR PROPOSED (DEVELOPED) CONDITION Under the development condition, the urban runoff generated from PA -3 has the potential to carry pollutants such as trash, debris, hydrocarbon, heavy metals, nutrients and bacteria, and sediment. The runoff from the project site and off -site property will not be allowed to discharge into receiving bodies (LARB) without adequate water quality treatment. The treatment must be applied in accordance with the RWQCB regulations, CCC requirements and California BMPs. In accordance with the Orange County Municipal Storm Water Permit (January, 2002) and Coastal Commission guidelines, the treatment control BMPs (volume- based) must be sized to adequately treat, infiltrate or filter the volume of runoff from a 24 -hour, 85th percentile storm event as determined from the local historical rainfall record or from the ASCE WEF Manual of Practice No. 23, Urban Runoff Quality Management. Similarly, for flow -based BMPs, they must adequately treat or filter runoff from a 85th percentile hourly rainfall intensity, as determined from the local historical rainfall record, multiplied by a factor of two. For Orange County, it is generally accepted that 0.8 inches rainfall depth satisfies the 85th percentile treatment requirement for volume based BMPs or 0.2 inches per hour for flow -based BMPs. The first flush volume to be treated is calculated using the methodology adopted by the Los Angeles Standard Urban Storm Water Mitigation Plan (SUSMP) and is commonly accepted by the SARWQCB. Boeing Space and Communications Group -5- Specific Plan Water Quality Assessment Report Boeing, Seal Beach March, 2003 The first flush volume is calculated by the following equation: V (ac.-ft) = 0.8 (in.) x 1/12 (ft/in.) x [Ai (ac.) x 0.9 + (Ap (ac.)+ Au (ac.)) x 0.11 Where: V = first -flush volume Ai = Impervious Area (ac.) Ap = Pervious Area (ac.) Au = Undisturbed Area The impervious area is estimated using the Orange County Hydrology Manual for industrial development. The first flush volume is calculated for PA -3 independently of the other FA's because water quality treatment facilities will be sized accordingly for each phase of development. The proposed condition consists of the PA -3 development area (61 acres) and the off -site drainage area of Accurate Metals (5.2) generating a 3.6 ac. -ft first -flush runoff volume. A similar calculation can be performed for the existing condition for comparison purposes. The following tables indicate the increase of first flush in 0.8 inches of rainfall depth generated from the project site under the existing and proposed conditions. The first -flush volume for the existing condition consists of the existing hardscape included in FA -3 (23 acres), the dirt lot area (38 acres) and the off -site drainage areas (12 acres). Table 2: Existing First Flush Volumes for PA-3 Area Description Area First Flush - Volume Ac -ft A Existing Hardsca e 23 1.13 B Dirt Lot Area 38 0.35 C off -site Drainage 12 0.66 Total Existing PA -3 73 2.1 Table 3: Proposed First Flush Volumes for PA -3 Area Description Area First Flush- Volume (Ac-ft) A Pro osed Hardsca e 61 3.3 B Off -site Drainage 5.2 0.25 Total Pro osed PA -3 66.2 3.6 As shown in Tables 2 and 3, the proposed project increases the first flush volume approximately 70% representing a significant increase in storm water runoff and pollutants typically associated with the project. The proposed development will increase Boeing Space and Communications Group -6- Specific Plan Water Quality Assessment Report Boeing, Seal Beach March, 2003 pollutant loads to the receiving water body. To mitigate the impacts to an insignificant level, appropriate source control and treatment control BMPs will be implemented in the project site as discussed in the following sections. The Orange County Municipal Storm water Permit specifically states that significant redevelopment projects are subject to first flush sizing criteria so the PA -3 site will include water quality treatment for the entire area, not just the increase in first flush between the proposed and existing condition. The remaining PA's (i.e., PA- I and PA4) will meet first flush requirements at the time of development. IV. PROPOSED MITIGATION FEATURES 41 OBJECTIVES Urban runoff resulting from short- duration, low intensity storms or nuisance flows (runoff during dry periods) from the planned development and off -site drainage areas carry pollutants to receiving waters. Without appropriate design features and mitigation measures, impacts could adversely affect the downstream watercourses and habitats. To prevent potentially contaminated runoff from reaching downstream waters, adequate water quality treatment must be applied in accordance with the RWQCB regulations and the CCC requirements for new or and redevelopment projects. The primary objective of the water quality element of the BMPs is to ensure that the project - generated pollutants (including off -site drainage) do not exceed the applicable water quality standards of the receiving waters established by the RWQCB. 7 .2 SOURCE CONTROL The second phase of water quality management includes source control BMPs. Source control BMPs effectively minimize the potential for typical urban pollutants to come into contact with storm water, thereby limiting water quality impacts downstream. Numerous source control BMPs will be incorporated into the proposed project including: • Dative species planting within the water quality treatment basins and native drought tolerant species incorporated into landscaped areas • Efficient irrigation systems including rain shutoff devices and flow reducers • Minimization of pesticide and fertilizer application and proper landscape training ■ Properly designed trash enclosures to minimize contact with storm water and diversion of trash drainage towards infiltration zones or landscaped areas ■ Properly designed outdoor material storage areas with secondary containment and roofs or awnings to protect from direct precipitation • No direct connections of truck wells (depressed loading docks) to the storm drain system * Regularly scheduled sweeping of all streets and parking lots Boeing Space and Communications Group -7- Specific Plan Water Quality Assessment Report Boeing, Seal Beach March, 2003 • Routine maintenance of all the catch basins, grate inlets, etc. for debris and litter removal • Storm drain stenciling or signage on all catch basins with highly visible source control messages • Educational materials related to urban runoff for all businesses and building owners • Education and training of all maintenance staff to identify and incorporate BMPs into routine maintenance practices • Title 22 CCR Compliance for all applicable facility uses • Spill Contingency Plan for all applicable facility uses • Litter control for the entire project area • Housekeeping of all loading docks to minimize potential contact of pollutants with storm water • BMP Maintenance Schedules including maintenance requirements of all treatment BMPs Each of these BMPs will be discussed in detail in the Water Quality Management Plan prior to project development. 4.3 TREATMENT CONTROLS The third component to sound water quality management is the treatment control BMPs designed to reduce the impacts of urban ' development on downstream water bodies. The purpose of the BMPs is to remove the pollutants typically associated with each type of urban land use including the light industrial uses proposed for PA -3. Potential pollutants associated with light industrial include: sediments, trash/debris, nutrients, oil/grease and pesticides. To mitigate the discharges of urban runoff pollutants into receiving waters, the proposed project will incorporate two treatment approaches for reducing these types of pollutant discharges into the LARK (see Figure 3). The following water treatment strategies and devices will be utilized to treat both on --site and off -site pollutant sources. Figure 3 shows the Proposed Water Quality Assurance Plan. e CONTROL -1: CDS UNIT OR EQUIVALENT The proposed BMP for the drainage area discharging into the central ditch is an underground CDS unit (or equivalent) that will be sized to treat runoff from approximately 40 acres (includes 23 acres within PA -3 and 17 acres from PA -1 equaling roughly 6.5 cfs low flow) of the project area east of the central conveyance ditch. The device is primarily used to control trash, litter, oil/grease and sediment particulates associated with parking lots and rooftop drainage. Boeing Space and Communications Group -8- Specific Plan Water Quality Assessment Report Boeing, Seal Beach March, 2003 A CDS (or equivalent) will be installed to treat runoff from the parking areas of PA -1 and discharged directly into the LARB to avoid interference with the water quality treatment basins in PA -3. In addition, an adequately sized CDS unit (or equivalent) will be installed to treat any off- site runoff draining into the southern water quality treatment basin. CDS Unit (or equivalent) is a pre -cast vault system that removes debris, trash, oil/grease, sediment and parking lot particulates from storm water. The units will be installed underground within the storm drain system. As the water enters the underground storm drain system, it filters through the CDS unit and flows through a vortex sieve which traps sediment and debris while oil/grease floats to the top where an USEPA approved absorbant removes the oil/grease from the storm water. The required units will discharge treated storm water to the central conveyance ditch . and southern water quality treatment basin respectively before discharging into the LARB. CONTROL -2: MULTI- PURPOSE WATER QUALITY/DETENTION BASINS Multi- purpose water quality /detention basins will treat the remaining runoff of PA -3 from the north and south portions of the site. Runoff from the north portion of the site (approximately 19 acres) will discharge into the series of linear water quality /detention basins along the western perimeter of the site. Runoff from the south portion of the site (approximately 27 acres) will discharge into the south water quality basin located between Adolfo Lopez Drive and the south ditch. The water quality basins control and remove nutrients (nitrogen and phosphorus), microbial contaminants (bacteria, fecal coliforms), and toxic materials (pesticides, heavy metals, oils, and organic matter). The water quality basins are sized to accommodate the 46 acres of first flush runoff that discharge into the basins for a total treatment capacity of approximately 2.8 acre -feet. The basins are also sized to accept the pre - treated flows from Accurate Metals and to accommodate detention of runoff for the 100 -year storm event to regulate discharges into the LARB at the pre - development condition. The water quality treatment basins will be designed to allow for low flow treatment of urban runoff with detention capabilities beyond the first flush requirements. Water quality basin is a basin with a wetland bottom and vegetation, which impounds surface runoff and gradually filtrates it through the basin floor. It is similar to conventional dry ponds. The detained runoff is filtrated through the soils beneath the basin, removing both fine and soluble pollutants. Removal mechanisms include adsorption, filtering, and microbial decomposition in the basin subsoil. Due to the slow velocity, fine particles will settle in the bottom of the channel, runoff will infiltrate into the soil to recharge the groundwater basin, and vegetation will uptake fertilizers and nutrients (e.g. nitrogen and phosphorus), microbial contaminants, pesticides and organic matter. The pollutant removal. efficiencies rate ranges from 20% to So% based on EPA NURP (Nationwide Urban Runoff Program) findings and CDM (Camp Dresser & Boeing Space and Communications Group -9- Specific Plan Water Quality Assessment Report Boeing, Seal Beach March, 2003 McKee Inc.) experience published in California State BMP handbook (pp. B -8) and Caltrans storm water data (2001). Metals can also be removed in a filtration basin. Most of the metals washed off of the parking lot will be in the metallic form, which settles out as solids in the basin. Ionic metals can be utilized by microbial activity. The filtration basin is designed to impound 0.8" of the "first flush" storm event from the local sub - drainage area or nuisance flows. The depth of water in the basin should be 2 feet or less to allow the UV light to disinfect the bacteria such as Fecal Coliform, Enterococcuss and E. soli. Total suspended solids (TSS) standards of storm runoff can be met by retarding the storm water for two days to allow for sufficient sediment settling. Figure 3 shows a typical cross section profile of the water quality basin. The graded area for the water quality treatment facilities is 2.1 acres and consists of two main components. A series of connected water quality basins running north/south along the western perimeter of the project site will treat first flush and dry season flows from the northern portion of PA -3. A separate water quality basin located along the southwest portion of the site adjacent to the south conveyance ditch and Adolfo Lopez Drive will treat flows from the southern portion of the site including off -site runoff from Accurate Metals. Additional water quality measures will be implemented throughout the project site including trash racks, catch basin inserts with hydrocarbon removal capabilities and grassy swales where feasible. The total capacity of water quality treatment for the designed water quality basins is approximately 2.8 ac. -ft and this capacity is sufficient to detain and treat runoff from its associated sub - drainage area according to the volume - based requirements of the Coastal Commission and the SAARWQCB. The existing storm drain system in PA -1 will be modified to allow for the first -flush treatment requirements for redevelopment. The northern portion of PA -1 (approximately 21 acres of parking lot) will be re- routed around PA -3 to the Los Alamitos Retarding Basin (LARB) to avoid interference with the storm water treatment facilities of PA -3. A storm water device designed to remove parking lot pollutants from the parking areas will be installed in the modified storm drain system to treat first flush sizing requirements. The remaining 17 acres of the existing Boeing Campus area in PA -1 will drain through a separate storm water device before discharging into the central drainage ditch. Any future development of PA -1 will incorporate additional water quality design features to treat pollutants from the proposed land use within its own development area. At the present time, there are no plans for the redevelopment of PA -1 so site specific BMPs have not been designed for PA -1. Water quality treatment for PA-4 (4.5 acres) will include maximizing runoff into local landscaping and planter areas throughout the parking lots and building footprint areas. Boeing Space and Communications Group _10- Specif c Plan Water Quality Assessment Report Boeing, Seal Beach March, 2003 This will serve to reduce the post - developed runoff rates and provide infiltration of the initial flows of storm water runoff for water quality treatment. Structural BMPs for the parking lots will also be utilized if the infiltration zones are not able to handle the first flush treatment requirements. Bio- swales may also be utilized but water quality basins will not be due to their size requirements. All BMPs will be adequately sized to treat, infiltrate or filter the volume -based or flow -based treatment requirements and will be documented in a Water Quality Management Plan subject to approval of the Coastal Commission and the City of Seal Beach. Currently, the off -site areas located along Seal Beach Boulevard (Blvd) and Adolfo Lopez Drive, including Accurate Metals, the City Police Station, the City Maintenance Facilities, the Animal Shelter and the open dirt area west of the Animal Shelter, drain north and northwest into the proposed project site before discharging into the LARB. Under the proposed conditions, the Accurate Metals facility will continue to drain into the project site, while runoff from Adolfo Lopez Drive, the City Maintenance Facilities, the City Police Station, the Animal Shelter and open space adjacent to the Animal Shelter will-be intercepted and re- routed through a separate storm drain system. The new storm drain system will extend from the end of Adolfo Lopez Drive into the LARB or Boeing property, dependent upon the final design and approval of the City Engineer. The runoff from Adolfo Lopez Dr. and the associated facilities will be treated by storm water devices to remove the pollutants of concern. In addition, a storm water treatment device will be installed at the southeastern project boundary to treat the Accurate Metals runoff before discharging into the proposed project. 4.4 'WATER QUALITY ASSESSMENT FOR MITIGATED CONDITIONS The OC Municipal Storm Water Permit (approved January, 2002) defines new criteria and regulations for new development projects. According to the Permit, the project shall mitigate the projected increases in pollutant loads and flows and ensure that post- development runoff rates and velocities from a site have no significant impacts on downstream erosion and stream habitat. The mitigated pollutant loadings are estimated based on regional and national studies that evaluate the effectiveness of the various BMPs chosen for the proposed project. Boeing Space and Communications Group . - 1 1 - Specific Plan Water Quality Assessment Report Boeing, Seal Beach March, 2003 Table 4 : BMPs Effidenees 1 Stenstrom, M.K., Lau, Sim -Lin, and E.Khan, 1998. "Catch Basin Inserts to Reduce Pollution from Storm Water ", Civil and Environmental Engineering Department, UCLA. 2 Rinker Materials; Stormceptor Unit, 2002 3 StormWater Program- California Department of Transportation BMP Retrofit Pilot Program.- 2001 4 California Storm Water BMP Handbook, pg B -9, 1993 Note: NIA = Data not available or not measured The proposed BMPs demonstrate a significant reduction in the anticipated pollutants. The combination of the source control BMPs and the treatment control BMPs would result in a low concentration of pollutants discharged into the LARB and water quality impacts would be insignificant. The increased post - development runoff rate and velocity wild have no significant adverse flooding impacts to the regional detention basin (LARB). because retention of runoff on -site will regulate the discharge to the pre- development condition. With the above water quality control plan, the pollutants in urban runoff from the project site will be mitigated to meet the objectives set by the SARWQCB and the Coastal Commission. The impact due to the urban runoff from the proposed development area will be mitigated to a level of insignificance. V. MONITORING PROGRAM A five -year monitoring program will be followed to ensure the water quality treatment facilities perform in compliance with all water quality objectives. The monitoring program will include guidance and instruction for proper maintenance of the facilities as well as a discrete number of sampling events during times of discharge into the LARB. The monitoring program will be developed according to State Water Resources Control Board guidelines and Coastal Commission Model Urban Runoff Program (February, 2002). Additional details on monitoring and maintenance requirements will be provided in a comprehensive Water Quality Management Plan developed during the final design phase. Boeing Space and Communications Group 42- Specific Plan Pollutant Removal E sciences (median value Pollutant CatchBasin InseW Storm Drain Inser Water Qy ali .Basin ' TSS 75% 75% So% Hydrocarbons 70% 70% NIA Total -P 14% NIA 58% Soluble -P 0% NIA 65% NO2 + NO3 NIA NIA 20% TKN 14% NIA 30% Cadrnium. NIA NIA 70% Co er 11% NIA 60% Lead 15% NIA 70% Z 5% NIA 40% 1 Stenstrom, M.K., Lau, Sim -Lin, and E.Khan, 1998. "Catch Basin Inserts to Reduce Pollution from Storm Water ", Civil and Environmental Engineering Department, UCLA. 2 Rinker Materials; Stormceptor Unit, 2002 3 StormWater Program- California Department of Transportation BMP Retrofit Pilot Program.- 2001 4 California Storm Water BMP Handbook, pg B -9, 1993 Note: NIA = Data not available or not measured The proposed BMPs demonstrate a significant reduction in the anticipated pollutants. The combination of the source control BMPs and the treatment control BMPs would result in a low concentration of pollutants discharged into the LARB and water quality impacts would be insignificant. The increased post - development runoff rate and velocity wild have no significant adverse flooding impacts to the regional detention basin (LARB). because retention of runoff on -site will regulate the discharge to the pre- development condition. With the above water quality control plan, the pollutants in urban runoff from the project site will be mitigated to meet the objectives set by the SARWQCB and the Coastal Commission. The impact due to the urban runoff from the proposed development area will be mitigated to a level of insignificance. V. MONITORING PROGRAM A five -year monitoring program will be followed to ensure the water quality treatment facilities perform in compliance with all water quality objectives. The monitoring program will include guidance and instruction for proper maintenance of the facilities as well as a discrete number of sampling events during times of discharge into the LARB. The monitoring program will be developed according to State Water Resources Control Board guidelines and Coastal Commission Model Urban Runoff Program (February, 2002). Additional details on monitoring and maintenance requirements will be provided in a comprehensive Water Quality Management Plan developed during the final design phase. Boeing Space and Communications Group 42- Specific Plan Water Quality Assessment Report Boeing, Seal Beach March, 2003 This WQMP will also include estimated pollutant loadings for the various land uses, expected water quality after treatment measures, and educational materials. If the monitoring program identifies any reoccurring deficiencies in the treatment system, additional measures can be implemented: • Further restrictions on day - today practices of business park development • Increased uses of educational materials on storm water management • Installation of additional structural BMP devices to pre -treat flows into the water quality basins VI. CONCLUSION This report has identified and assessed the existing and proposed urban runoff water quality conditions. Based on the results of the water quality analysis, this report draws workable conclusions from the generated data and offers appropriate mitigation measures to be incorporated into the final design in compliance with the requirements of the federal and state environmental regulations. The potentially contaminated runoff water from the paved and landscape areas of a first flush storm event and dry season urban runoff will not be allowed to discharge into receiving water bodies (LARB) without adequate water quality treatment in accordance with the RWQCB regulations and Coastal Commission requirements. The proposed design features and mitigation measures will meet the Basin Plan objectives through the use of water quality storm water devices and water quality treatment basins. VII. REFERENCES California Storm Water BMP Handbook, pg B -9, 1993 National Urban Runoff Program. (1983). Final Report. U.S. Environmental Protection Agency Water Planning Division, Washington, D.C. Orange County Municipal Storm Water NPDES Permit (Board Order No. R8- 2002 -0010, NPDES Permit No. CAS618030) issued January 2002 by the California Regional Water Quality Control Board, Region 8. Rinker Materials; Stormceptor Unit, 2002 Stenstrom, M.R., Lau, Sim -Lin, and E.Khan, 1998. "Catch Basin Inserts to Reduce Pollution from Storm Water ", Civil and Environmental Engineering Department, UCLA. StormWater Program- California Department of Transportation BMP Retrofit Pilot Program. - 2001 Boeing Space and Communications Group -13- Specific Plan Water Quality Assessment .Report Boeing, Seal Beach March, 2003 Boeing Space and Communications Group -14- Specific Plan X05 ,� lit A05 22 ..... . . .............. . ce. LLIS > > Cher an. UJ V L U ! SIMINIISTER Al E WESTMINISTER AVE Project Site Ile CO ARM •• ®r Figure I Vicinity Map 06-28-2002 ... f •, e :::oC.: ".•~. �....... ;;1X!i. .... ._.... .. W Mwy,. �•" ! •y' A•r^' r.nn.: n.... w . " " ". .. . " " ".. gyp. 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A n anal Shelter : ^ -, 'tte. ■��y ��re ; : , 4.�:� .."� .. r.. `/ �w A. ccurate Metals On. o�'kSFal Be Facilities r3 r l Ze . :. /. }� vc EA Figure 2 •7t 'V Y. . Ap Existing Land Use Planning Areas Stormwater Unit L'J�St rraS'.e' EfYd �reatrnent�Areaw ?.f ac . "reatment =tow =- 3.4 cis E r Ex, Lino 4$" So J • 3: 1 ff North Basin Central Ditch ,. Area= 1.4 ac C7C- S Vol- 1.3 ac -ft 3 r� % LEGEND Starmwatvr Unit � Existing Storm Drain Treatmen Area= 40 ac � / _ �.._.. Mc�,t,ed PA - St-un Crain •. Treatment Flow = 6.5 cfs �Mk „Ww„ _ - ° -- _- Pra;osecs PA•s Storm ;]rat s South Basin a : l -. ................w.............. ]� _ Cr ©ss Section :� -A Area Voles 1.6 ac -lt ,x ` :..... . outh Ditch starrriwalsr knit ;• ” •�,:- . ,. "ig,ze to ae 0 tzrminedj�A.,►.w :���s iqF�► ", r' �a + �Sto�rmwater Unit (Size to be Determined) Animal Shelter `�� Off -Site Drainage Area ""'' , "Ply..�. . •�: J Accurate Metals ......w City of Seal Beach Facilities s Police Station IlA '- •.�WC � - Y�i :.. r� T:: ✓Hw.S :,,tl:yii ter!' Y 7 i 1 Figure 3 Water Quality Assurance Plan Conceptual Hvdrolozv Report for the Boeing Space &Communications Specific Plan at Westminster Ave and Seal Beach Blvd City of Seal Beach Date: S 002 Revised: 9/30/02 Prepared For: STONECREEK CO, 30322 Esperanza Ave., Suite 200 Rancho Margarita, CA 92588 (949) 709 -8080 Prepared By: TAIT &ASSOCIATES, INC. 701 N. Parkcenter Dr. Santa Ana, CA 92705 (714) 560 -8200 (714) 560 -8211 fax Project No. SP4394C ti I � u%-- CHRISTOPHER HAHN RICE 58971 Date BE TABLE OF CONTENTS I. INTRODUCTION 3 II. ONSITE FLOW VOLUMES 5 III. SITE DESCRIPTION 6 IV. SUMMARY g V. DRAINAGE AREA MAPS VI. VICINITY MAP APPENDICES *Calculations included are for the high confidence interval design storm. See summaries for equivalent expected confidence design storms. APPENDIX A: RATIONAL METHOD --10 YEAR STORM APPENDIX B: RATIONAL METHOD .25 YEAR STORM APPENDIX C: RATIONAL METHOD - 50 YEAR STORM APPENDIX D: RATIONAL METHOD -144 YEAR STORM 2 SECTION 1 INTRODUCTTON The purpose of this .Conceptual Hydrology Study is to evaluate potential flood control .. P mitigation requirements due to the development proposed for the Boeing Space and P Communication Campus per the Specific Plan. A final Hydrology Stud will be . y � y generated during the project design phase and will size the ro osed storm drains stem P P y and locate various appurtenances. The sizing and location of all facilities identified in this report have been estimated for planning purposes only and are subject to refinements . y ) ents in the final design of the project. The final design is subject to the approval of the City . PP tY Engineer 1. I PROJECT DESCRIPTION The project is a development of the land that is both vacant and current) supports . y PP various large industrial buildings and warehouse facilities for Boein g Space ace and Communications group. The site is located on approximate) 107 acres in the City ty of Seal Beach on the northwest corner of Westminster Ave. and Seal Beach Blvd. The majority of the site, 59 acres, is developed. There are two large parking g P g are as, one along and Westminster Ave. and one along Seal Beach Blvd to provide access to the various . P s building complexes. Approximately 38 acres of the existing ite aloe the wester) � � y property line is currently undeveloped. For analysis purposes the existing running . �'P g g track area, corresponding to about 5 acres, has been categorized as undeveloped due to it's . P pervious soil cover. offsite parcels along the southern property line also drain onto Boeing watershed ar ' g ea' which include: Adolofo Lopez roadways Accurate Metals, the Police Department and City Facilities � P ty ilities Yard. The Accurate Metals is zoned light industrial and is located at the northwest corner of Seal Beach Boulevard and Adolfo Lopez Drive, immediately adjacent the Boeing site. The Police station and City Facilities (including the . Animal Shelter and adjacent vacant land) are located along the south side of Adolfo Lopez p Drive. Future plans call for the widening of Adolfo Lopez by 40' with a cul -de -sac P er the City's request. Per the Boeing Space and Communications Group (BSQ Specific Plan the site is P s split into four proposed planning areas (PA). PA 1 corresponds to the existing oein Space g g p and Communications Campus. PA 2 corresponds to BSC facilities which will be relocated and developed in the future as a business park. Planning Area PA 3 is a proposed business park, which is undeveloped. PA 4 corresponds to the proposed hotel . P P and commercial area at the northeast corner of the site, which is an existing parking lot. i A new storm drain system will be constructed n the proposed Saturn Way nd Apollo - Y P o Covert right-of-way and will drain to the proposed water quality/retention /retention basins as shown per the Specific Plans Illustrative Site Plan. Ultimate sizing f this network will b g e performed during the final design phase. The water quality/retention basins will ultimately drain to the LARB. 3 performed during the final design phase. The water quality /retention basins will ultimately drain to the LARB. SECTION 2 ONSITE AND OFFSITE FLOW VOLUMES 2.1 . METHODOLOGY The Orange County Hydrology Manual (OCHM) has been used for this hydrology study. The manual allows the use of the Modified Rational Method for drainage basins up to one square mile (640 acres). The Seal Beach Boeing site comprises approximately 107 acres with contributory offsite area of 12 acres totaling 119 acres, which falls below the 640 acre limit. The sizing and location of all facilities identified in this report have been estimated for planning purposes only and are subject to refinements in the final design of the project. The final design is subject to the approval of the City Engineer In accordance with Addendum No. 1 of the OCHM, an expected 50% confidence interval was used for analysis of developmental retention requirements. During the construction q g document phase, individual storm drain systems will be designed using an expected confidence of 85 %. The program chosen for the design of the runoff for the site is the Rational Method Hydrology Computer Program Package by Advanced Engineering Software (AES). This program follows the methodology of the Orange County Hydrology Manual. A summary of pre - and post - development runoff has been tabulated in the Summary. The peak existing was used to determine the allowable discharge when sizing the flood retention mitigation as shown on the Detention Capacity Calculation tables. These tables evaluate the detention capacity required at increasing times of concentration. The Tc are generated using OCHM's Mean Precipitation Intensity chart, Fig. B -3, as incorporated in AES. 2.2 CONCEPTUAL DESIGN CRITERIA Y Design Storm: 10, 25, 100 High Confidence year storm events I Soil Type: "B" (assumed for all. areas) to obtain an Fp = 0.30 per Addendum No. 1 See enclosed OCHM Addendum 1 for conversion of High Confidence to expected confidence (eg the 25 Year High Confidence interval storm equals the 100 year Expected confidence interval storm.) R, SECTION 3 SITE DESCRIPTION 31 EXISTING DESCRIPTION The site is drained by three existing storm drain collection systems on site. A network of on -site drains collect runoff that is eventually conveyed through three separate 48" pipes which drain westerly into three manmade earthen channels. The existing development is bound on the north by a large parking area that drains to an onsite storm drain system. These drainage ditches drain to three headwalls with 48" RCP pipes that connect to the Los Alamitos Retarding Basin (LARB). The central ditch drains the main campus. The south ditch drains the adjacent fields and parking lot near Seal Beach Blvd. Offsite parcels along the southern property line drain onto Boeing's watershed area, which include: Adolofo Lopez roadway, Accurate Metals, the Police Department and City Facilities Yard. This Hydrology Study assumes the City's property, including the undeveloped area northwest of the existing Animal Shelter. adjacent the City Facilities yard, drains to Boeing's property. The Accurate Metals site, 5.25 acres, currently sheet flows to and drains via its onsite valley gutter to the a catch basin at the northerly corner of its lot. This catch basin connects to Boeing onsite storm drain pipe which eventually discharges to the southerly drainage ditch. The Police station and City Facilities and undeveloped area, 6.8 acres, drain to Adolfo Lopez which discharges onto Boeing's property and ultimately drains via the south drainage ditch to the Los Alamitos Retarding Basin (LARB). 12 PROPOSED DESCRIPTION The new development is on the approximately 38 undeveloped acres and the redevelopment of 12 acres of the existing campus per PA 2. The site is bounded to the north by Westminster Ave., to the west by the Los Alamitos Retarding Basin (LARB), to the south by Adolfo Lopez Drive and Seal Beach Boulevard and to the east by the existing Boeing site. The proposed site development includes the construction of internal streets with storm drains, and the widening of Adolfo Lopez Drive with a new storm drain line. These streets, within PA 2 and PA 3, connect Westminster and Seal Beach Boulevard and provide access to thirteen parcels as proposed by Vesting Tentative Tract Map 15375. The proposed storm drain system in the proposed Saturn way and Apollo Court right -of -way will collect street runoff through a series of sump and flow by catch basins and will drain to the proposed water quality /retention basins as shown per the Specific Plans' Illustrative Site Plan. Ultimate sizing of this underground network will be performed during the final design phase. The water quality /retention basins will ultimately discharge through an energy dissipater, where necessary, into the LARB. Industrial type buildings are proposed for the thirteen lots. Preliminary design indicates the drainage can be split to the front and back of each lot. Each lot will connect separately to the main storm drain system. Water quality best management practices will be incorporated in the site design for during - and post - construction activities, including 6 the construction of combined water quality /flood retention basins per the Specific Plan's Illustrative Site Plan included for reference. The new development will remove the existing onsite 48" storm drain pipes back to the remaining campus area where it will be rerouted to avoid the new lot layouts. A new private storm drain pipe will rout Accurate Metals runoff through Lot 6B to the proposed water quality /retention basin. Per the City's directions the proposed development will require the widening of Adolfo Lopez which require providing a catch basin to be located near the cul -de -sac to collect the surface drainage from the adjacent offsite areas including the City's Maintenance Facility and Police station. This catch basin will be piped to the LARB. It is our understanding the City's property including the Animal Shelter and adjacent vacant land may be developed sometime in the future. For the purposes of this study, this entire off site area of 5.25 acres has been analyzed as a commercial -like development with a corresponding imperviousness of 90% to ensure adequate maximum storm drain system sizing. The potential improvements and land use changes planned for the City properties along Adolfo Lopez are outside of the project's boundary and do not influence the proposed project. Any future offsite development should include a similar analysis as performed by this Hydrology Study to analyze and maintain the existing flows draining to the LARK. SECTION 4 SUMMARY The following is a summary of runoff totals at both stages of the site development: Existing and Proposed Full Development. Supporting hydrology calculations can be found in the appendices. Currently the site is about 64% fully developed. By developing the remaining 36% of the site, the average perviousness of the entire site has been decreased; therefore, a significant amount of runoff has been generated by the site. when considering the offsite areas, the total watershed is currently 67% developed. Storm drain system pipe sizing will be evaluated during the construction document phase. This analysis has generated the flood retention requirements for the project. In conclusion, this conceptual study shows that the proposed development will increase runoff from the site by approximately 9.8 cfs for the 1 00-year expected confidence storm (i.e. the 25 year storm charts) per orange County's Flood Control's Appendix 1. This will require 1.84 acre -feet of retention. By designing drainage retention into the system, the additional runoff into the LARB will be mitigated and will rovi de improved storm p F water quality by directing the proposed developed lots' drainage through a combination of storm water pollution control devices and retention basins. Retention capacity will be provided in conjunction with proposed water quality basins as shown on the illustrative site plan. Based on the current water quality constraints, there is sufficient additional capacity to mitigate the increased runoff. DATE: 9130102 JOB# SP4394 -C BOEING SPACE AND COMMUNICATIONS SPECIFIC PLAN SIW CORNER OF SEAL BEACH BLVD & WESTMINSTER BLVD. NIA YEAR EXPECTED CONFIDENCE SUMMARY OF PREIPOST CONSTRUCTION VOLUME TOTALS FOR ALL FLOW PATHS (100 YEAR) [cfs} Flow Path A B C D TOTAL Pre - Construction 25.2 95.5 1 03.5 113.0 338.2 Post - Construction 25.2 98.6 107.0 117.2 348.0 N/A YEAR EXPECTED CONFIDENCE SUMMARY OF PRE /POST CONSTRUCTION VOLUME TOTALS FOR ALL FLOW PATHS (50 YEAR) (cfs) Flow Path A B c n TnTni Pre - Construction 21.9 83.7 89.9 97.6 293.1 Post - Construction 21.9 85.9 93.3 101.7 302.8 100 YEAR EXPECTED CONFIDENCE SUMMARY OF PREIPOST CONSTRUCTION VOLUME TOTALS FOR ALL FLOW PATHS (25 YEAR) (cfs) Flow Path A B C D TOTAL Pre - Construction 19.1 73.8 78.9 85.5 257.2 Post - Construction 19.1 75.9 82.2 89.8 257.0 25 YEAR EXPECTED CONFIDENCE SUMMARY OF PREIPOST CONSTRUCTION VOLUME TOTALS FOR ALL FLOW PATHS (10 YEAR) (cfs) Flow Path A B C D TOTAL Pre - Construction 15.5 59.8 54.3 59.4 209.0 Post - Construction 15.5 62.1 57.6 73.5 218.7 Detention Capacity Calculation Page 1 of 1 Date: 9/30/2002 Peak Rate Flow Detention Project: Boeing - Seal Beach, CA Inflow 25 YEAR EXPECTED CONFIDENCE STORM Detained Capacity 1 10 YEAR STORM -HIGH CONFIDENCE TOTALS 408.97 64.30 RUNOFF FROM PATH A IS CONSTANT DUE TO EXISTING DEVELOPED CONDITION 6.86 274.92 FLOW PATH B 21 0.62 0.58 rainfall Intensity Peak Peak Rate Flow Detention duration (in /hr) Inflow outflow Detained Capacity 2 6.86 238.68 59.80 178.88 0.49 5 4.06 141.19 59.80 81.39 0.56 10 2.73 94.91 59.80 35.11 0.48 12 2.46 85.50 59.80 25.70 0.42 15 2.16 75.23 59.80 15.43 0.32 20 1.83 63.80 59.80 4.00 0.11 30 1.45 50.57 59.80 -9.23 -0.38 40 1.23 42.89 59.84 -16.91 -0.93 min 1 CIA cfs cfs ac -ft FLOW PATH C rainfall Intensity Peak Peak Rate Flow Detention duration (in /hr) Inflow outflow Detained Capacity 1 10.21 408.97 64.30 344.67 0.47 2 6.86 274.92 64.30 21 0.62 0.58 5 4.06 138.84 64.30 74.54 0.51 10 2.73 93.33 64.30 29.03 0.40 12 2.46 84.07 64.30 19.77 0.33 15 2.16 73.98 64.30 9.68 0.20 20 1.83 62.74 64.30 -1.56 -0.04 30 1.45 49.73 64.30 -14.57 -0.60 40 1.23 42.17 64.30 -22.13 -1.22 min I CIA cfs cfs ac -ft FLOW PATH D rainfall intensity Peak Peak Rate Flow Detention duration (in /hr) inflow outflow Detained Capacity 1 1 0.21 345.27 69.40 275.87 0.38 Oman 2 6.86 232.10 69.40 162.70 0.45 5 4.06 103.23 69.40 33.83 0.23 10 2.73 69.40 69.40 0.00 0.00 12 2.46 52.51 69.40 -6.89 -0.11 15 2.16 55.01 69.40 -14.39 -0.30 20 1.83 46.65 69.40 -22.75 -0.63 30 1.45 36.98 69.40 -32.42 -1.34 40 1.23 31.36 69.40 -38.04 -2.10 min I CIA cfs cfs ac -ft Total Detention Required: 1.59 ac -ft *Assume C= 1.0 (worst case) Detention Capacity Calculation Page 1 of 1 Date: 9/30/2002 Project: Boeing - Seal Beach, CA 140 YEAR EXPECTED CONFIDENCE STORM 25 YEAR STORM -NIGH CONFIDENCE TOTALS RUNOFF FROM PATH A IS CONSTANT DUE TO EXISTING DEVELOPED CONDITION FLOW PATH B rainfall Intensity Peak Peak Rate Flow Detention duration (in/hr) Inflow outflow Detained Capacity 2 8.10 281.80 73.60 208.20 0.57 5 4.82 167.77 73.60 94.17 0.6 5 10 3.26 113.33 73.60 39.73 0.55 12 2.94 102.21 73.60 28.61 0.47 15 2.59 90.09 73.60 16.49 0.34 20 2.20 76.55 73.60 2.95 0.08 30 1.75 60.85 73.60 -12.75 -0.53 40 1.49 51.71 73.60 -21.89 -1.21 min I CIA cfs cfs ac -ft FLOW PATH C rainfall Intensity Peak Peak Rate Flow Detention duration (in/hr) Inflow Outflow Detained Capacity 1 12.00 480.52 78.90 401.62 4.55 2 8.10 324.58 78.90 245.68 0.68 5 4.82 164.97 78.90 86.07 0.59 10 3.26 111.44 78.90 32.54 0.45 12 2.94 100.51 78.90 21.61 0.36 15 2.59 88.58 78.90 9.68 0.20 20 2.20 75.27 78.90 -3.63 -0.10 30 1.75 59.84 78.90 - 19.06 -0.79 44 1.49 50.85 78.90 -28.05 -1.55 min 1 CIA cfs cfs ac -ft FLOW PATH D rainfall Intensity Peak Peak Rate Flow Detention duration (in/hr) Inflow outflow Detained Capacity 1 12.00 405.67 85.60 320.07 0.44 2 8.10 274.03 85.60 1 88.43 0.52 5 4.82 122.67 85.60 37.07 0.26 10 3.26 82.86 85.60 -2.74 -0.04 12 2.94 74.74 85.60 -10.86 -0.18 15 2.59 55.87 85.60 -19.73 -0.41 20 2.20 55.97 85.60 - 29.63 -0.82 30 1.75 44.49 85.60 - 41.11 -1.7o 40 1.49 37.81 85.64 -47.79 -2.63 min I CIA cfs cfs ac -ft Total Detention Required: 1.84 ac -ft '`Assume C= 1.0 (worst Case) Detention Capacity Calculation Page 1 of 1 Date: 09/30/02 Project: Boeing - Seal Beach, CA NIA EXPECTED CONFIDENCE STORM 50 YEAR STORM -HIGH CONFIDENCE TOTALS RUNOFF FROM PATH A IS CONSTANT DUE TO EXISTING DEVELOPED CONDITION FLOW PATH B rainfall duration Intensity (in/hr) Peak Inflow Peak Outflow Rate Flow Detained Detention Capacity 2 9.13 317.65 83.70 233.95 0.64 5 5.44 189.11 83.70 105.41 0.73 10 3.67 127.74 83.70 44.04 _'J 0.61 12 3.31 115.22 83.70 31.52 0.52 15 2.92 101.55 83.70 17.85 0.37 20 2.48 86.29 83.70 2.59 0.07 30 1.97 68.59 83.70 -15.11 -0.62 40 1.68 58.29 83.70 -25.41 -1.40 min I CIA cfs cfs ac -ft FLOW PATH C rainfall intensity Peak Peak Rate Flow Detention duration (in/hr) Inflow Outflow Detained Capacity 1 13.52 541.65 89.90 451.75 0.62 2 9.13 365.88 89.90 275.98 0.76 5 5.44 185.96 89.90 96.06 0.66 10 3.67 125.61 89.90 35.71 0.49 12 3.31 113.34 89.90 23.40 0.39 15 2.92 99.85 89.90 9.95 0.21 20 2.48 84.85 89.90 -5.05 -0.14 30 1.97 67.45 89.90 -22.45 -0.93 44 1.68 57.32 89.90 -32.58 -1.84 min I CIA cfs cfs ac -ft FLOW PATH D rainfall Intensity Peak Peak Rate Flow Detention duration (in/hr) Inflow outflow Detained Capacity 1 13.52 457.28 97.60 359.58 0.50 2 9.13 308.89 97.64 211.29 0.58 5 5.44 138.27 97.60 40.67 0.28 10 3.67 93.40 97.60 -4.20 -0.06 12 3.31 84.24 97.60 -13.36 -0.22 15 2.92 74.25 97.60 -23.35 -0.48 20 2.48 53.09 97.60 -34.51 -0.95 30 1.97 50.15 97.60 -47.45 -1.96 40 1.68 42.62 97.60 -54.98 -3.03 min I CIA cfs cfs ac -ft Total Detention Required: 1.85 ac -ft *Assume C= 1.0 (worst case) Detention Capacity Calculation Page 1 of 1 Date: 99/30/02 Project: Boeing - Seal Beach, CA NIA YEAR EXPECTED CONFIDENCE STORM 199 YEAR STORM -HIGH CONFIDENCE TOTALS RUNOFF FROM PATH A IS CONSTANT DUE TO EXISTING DEVELOPED CONDITION FLOW PATH B rainfall Intensity Peak Peak Rate Flow Detention duration (in/hr) Inflow Outflow Detained Capacity 2 10.46 353.79 96.50 267.29 0.74 5 6.19 215.19 96.50 118-69 0.82 10 4.16 144.66 96.50 48.16 0.66 12 3.75 130.31 96.50 33.81 0.56 15 3.30 114.67 96.50 18.17 0.38 20 2.80 97.24 96.50 0.74 0.02 30 2.22 77.08 96.50 - 19.42 -0.80 40 1.88 65.37 96.50 -31.13 -1.72 min I CIA cfs cfs ac -ft FLOW PATH C rainfall Intensity Peak Peak Rate Flow Detention duration (in/hr) Inflow outflow Detained Capacity 2 14.46 419.02 103.50 3.15.52 0.87 5 6.19 247.86 103.50 144.36 0.99 10 4.16 166.62 103.50 63.12 0.87 12 3.75 150.09 103.50 46.59 0.77 15 3.30 132.07 103.50 28.57 0.59 20 2.80 112.00 103.50 8.50 4.23 30 2.22 88.78 103.50 -14.72 -0.61 40 1.88 75.29 1 03.50 -28.21 -1.55 min I CIA cfs cfs ac -ft FLOW PATH D rainfall Intensity Peak Peak Rate Flow Detention duration (in/hr) Inflow Outflow Detained Capacity 2 10.46 353.75 70.10 283.65 0.78 5 6.19 209.25 70.10 139.15 0.96 10 4.16 140.66 70.10 70.56 0.97 12 3.75 126.71 70.10 56.61 0.94 15 3.30 111.50 70.10 41.40 0.86 20 2.80 94.56 70.10 24.45 0.67 30 2.22 74.95 70.19 4.85 0.20 40 1.88 63.56 70.10 -6.54 -0.36 min I CIA cfs cfs ac -ft Total Detention Required: 2.78 ac -ft *Assume C= 1.0 (worst case) APPENDICES A THROUGH D OF THE CONCEPTUAL HYDROLOGY STUDY IS AVAILABLE FOR REVIEW PER REQUEST OF THE CITY OF SEAL BEACH 1509, NOP Correspondence UNIVERSITY OF SAN DIEGO SAN DzG0, CAUFORNU update, Sept, I 17, 2001 Project Schedule Duration * June 2001- Auptst 2002 Total Development Cost * $25,500,000 Construction Cast • $19,32010DO Size of Project Total Beds: 355 • Total Units: 101 • Parking: 317 cars Leaseable Area: 91,316 sq. ft Construction Type • coo=e w Three and four levels of wood framing constructed above two levels of underground parking - Futancial Structure Unfiversity Funded Tem Members: univemity ccatact: Rom Manion Director Of Faculties Manaommm (619) 26046" Dan Howard, AIA Fishes Fdedman ( 415) 981 -6076 Ceacral Contraetar: sauce Ir wMe Frper (619) ?33 -7900 lzr_ ate George IL RZIMaCO. (800) 722 -1670 Devr.3aper: john Vawter carpetam wea (760) 633 -1006 5 t J- Lj . � • it a . � i � / ���] � i • � r �� .+ r. 1 . T t The stele of the campw core is spy - C=ps ""0 dosely wkh ft do design new bang which the extzrtg campus arcWtecmm The meted hang design win cyst of precast c an=te details , wthed vdndo'ws., Bntids aid deem rad Fe ciumnL Brief Descdpition The University of Sin Diego is a Catholic University founded in 1949_ This component of housing adds 355 new beds to USA 's inventory. The two buildings are three and four levels of apartments with full kitchens and living rooms. Confemce roams will be provided on the third and fourth floors of the facility for large group meetings and classes. A L nveriience store will be built on the fast floor of the four -story building. Project Development ' The project site is located in the Fast Campus canyon area of the University grounds which has presented a number of chailen es tin fat including: . • -Replacing 650 linear it of the Se RCF storm drain. ■ Fxcavating and removing 50,oDO cubic yards of earth, rubble and . concrete debris. Excavating and irssmIling I,230 linear ft of cast in place concrete caissons. Relocating 1,500 if of 12 KVA power lints and transformers. ■ Coordinating daily activities and site access around campus sporting events and the Child Development Center directly adjacent W the site. • Insu ing 1,750 linear ft of Keystone retaining wralis. • Construcdng 13410DO sq. ft of wood frame over 107,000 sq. ft of Concrete garage. The project is within budget and on schedule for completion in August 2002. :ZiOW4 .1 i+ : -,.. , = jv • 3 ±; ..� ;mss � ' -� r- -� .' ....,rte ` � Y�• � +r'r` J��./`^•�� NP b WkUng 1: Founwork and concrete paces ase io Progress for Iwos of pS• ONO fttr -• r r SuBding Z: Fxynone wall Instal is tion and un d gauge a=rvatkm underwap■ ca stone`VA'�sL Home - - Available Properties History _Contact Us BOEING REALTY CORPORATION Pacific Gateway Business Center Seal Beach, Calif. VJ 5T M I N STER AVEk UE f LOT 2 r - :2DS.e�a sz ri •, 0 ° AC 3 F LoT 3 !211.1zoo Sp rl AC J w LOT 4 Tt -Woo M r� -P No warranty or representation, expressed or implied is made as to the accuracy of the information herein, and same is submitted subject to errors, omissions, change of price, rental, or other conditions, withdraws without notice, and to any special listing conditions, imposed by our principals. Back to Pacific Gatewa Business Centar site arc .e Term' 1 p�iva�l Contact us I SO 3 http- / /www.bocing.com/ special / realty /southwest/pacaatewaycenter siteplan.html LOT 4 a. =22S. 1 GO Sc. Ft. �• ' r w ' i LOT 5 LOT 7 ^r Ly 4 y�'s� iy1 �� LOT 6 Sq. Fr. ±212.00 M r� -P No warranty or representation, expressed or implied is made as to the accuracy of the information herein, and same is submitted subject to errors, omissions, change of price, rental, or other conditions, withdraws without notice, and to any special listing conditions, imposed by our principals. Back to Pacific Gatewa Business Centar site arc .e Term' 1 p�iva�l Contact us I SO 3 http- / /www.bocing.com/ special / realty /southwest/pacaatewaycenter siteplan.html �Tw"}`•��• ��,��u. �: •�y F'ir- 'err ~�.�1'- �'c.aLa' fQ'�C•�1e..T �, • 1 ^" w• !P Olt �Ir • Y ■�"-`ti ti . .1 =~' .X .'. a- rr��`yLC1f..44 -�~ .yY..w1J•c Y 1 - - - ""� -r � ��•��,:+ . .4w•4 'ZI .fir. wry �•y y•� ��. 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'�: � a.s.;. •�T� �L'�:: * w. t� r -� _x.- _e• -a�a wy +r r_�`:i`� +- w+!F+t ='� :�_'C.. :r �•,:_-'' ` =4-a- : ,•: .� _ J��s: wcr.. rR�wL r-a•e•!w ►•.- F• r ; - •+r �^r '1 ,i • ` '�+•• r'"'. -,r�1' .' • \Ga'4►'CT�..orr�.,•~i.: +�" -r r . + • _ _ - _ - • �ry� :�- �^ •S- r 1r�� YY ����y � _ �. ._ rya r •��„'.` -C` �1. --r - '• �.�fT,•ri •.tiw'�+Ti �.� �~y '� +a�•. �y -�� r-i:�•• �� ��C s~ r- '`rir+ ���.�,� �Rj���_ •— a -� -�X: - � - No warranry or reprt herein, and same is rmnditions. withdraw ntavon, exprt bmitted subje+ - ithout notice, Rar,k to Pal ssed or irn pea is mace as io uit: :t to errors, omissions, change of p and to anv special iistina condition: ;;tQwav Business genie uraCy OT me inmrmauut B, rental, or other mmsed by our orindr)a o nta Ct us j ­>Re map }one Copyright Q 2002 The 8c All rinhk reser 1I-I nrnnan 1ttn :l /�vwvw_boeing-.com/sDeciall realty /southwest/pacgateway=ter photv.� 3111 ! _ CITY OF SEAL BEACH MA? - 6 ?0CQ DEPARTMENT OF DEVELOPMENT SERVICES arch 5, 2002 Lee whittenberg Director of Development Services Seal Beach City Hall 211 Eighth Street Seal Beach, California 90740 -6379 Dear Mr. Whittenberg Thank you for your notice about the public meeting to be held on March 13, 2002, regarding Boeing Headquarters Campus.Specific Plan. I cannot attend the meeting but would like to convey my opinion on the subject to you. I'm unfamiliar with "light industrial use" (the manufacture of toothbrushes, perhaps ?) but am struck by the awesome number of acres Boeing Realty proposes allocating to such purpose. Adding up the 42.0 acres of Area 1; the 7.9 acres of Area .2 ; the 52.4 acres of Area 3, I get a total of 102.3 acres. Subtracting this from the 104.5 acres encompassed by Boeing's Headquarters Campus Specific Plan leaves 2.2 acres available for lilliputian hotel, retail and restaurant accommodations* One wonders why Boeing Realty didn't request approval. for using all but 2.2 acres for light industry, which would illuminate the ridiculousness of squeezing a hotel ( how large?), retail (a strip mall?), and restaurant uses (Jack in the Box ? ) , plus adequate parking, on 2.2 acres. Furthermore, would Boeing itself us.e . the .industrial buildings, or would it lease. them to lessees who might not be as aesthetically minded, as environmentally conscientious, and as neighborly as Boeing? To strengthen the voice of any attendees who may share my view on this matter. I respectfully ask that this letter be read into the record. Cordially yours, f Barbara Towers 14221 El Dorado Drive, #63F Seal Beach, California 90740-4846 (562) 431 --4443 D L - , Le 0 r.r 0 ■ - O `+ C3 C `� LO el rrr Y 0 c e L) W C3 a .� U CD p m 0 _v CD me CD CD a ❑ ❑ G N c `'r tL G C CL C7 �' D 0 a L� Q U m 0 m C C "� � m N m G7 m C C b- vs _ �. U _ m m a m CD (n CD iU Lt p m Q LL a - � in as as m a � � to G m D 0 L� 40.0 CC m ti C L m i C ?C Y �,] m -N0 a: _ v �' sQ ❑ N cn }• �, mom m� va t7 C3 m m` U m Cr �- a .-. a: v m v C m C " H � °, ." C cn r= C4 m D 5 M 0 rT Q7 m c v E oc c U c m m m C C m m C4 iA 38 m — V G3 m _ ❑ C ❑ �`. 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C3 s .C] -� v �. -� a i vy C3 v �; m : m dW 0 m .cmc �� a = .a s =� r =� p � D 4) 0 n. �, �V ro ._ G_ a�� amy SE m CD m m .... av m� any �mn ❑cn❑ 4) mom ❑�❑ ate© Utz �Q� o-, on N C3 .� ❑2o 0> jn ❑ -50 ❑--,❑ ❑-,❑ ate❑ - �a � n ❑❑ o❑ �- a �� o a o❑ a v ° _ 2: E Q+ ° m Q MM N �/ m W S r A as E 0 0 0 0 a E ° E v E co v m n m 0 m a o w Y sa V 0 cl L'i ❑ -- 0 m t3 ` m m C7 o w o t� � �► va O � � G U 0 .2 O • #ii •� .?S � � J CL ed C p � — v p 0 vQ ~ m V m m = m p O � . CD D L= U C m w ccl . E 0 CY M M J v 0 LO I%M ° s ° 46-9 ¢ co d: a s o a— r. v E c c v 0 im Se dw 5 a a �so E a E 0 0 E � o � E > CD M > CL v.> awLu a. c m a e m a ao a= 0 cc 0 0 0 m o m 0 m 0 m w D m . ❑dd: Omac 6�� ❑ cc cama. 0CDXa. 0 m G} - c . 0 p m ccci Llf- -� .. Q C C m [sat 2L3n m .. a� mm C�•asrr� ❑ ❑ ❑ ❑ m dl >% 'a 0 U ❑ C• iA .. .:: m �. v C m W C V cc o « C m i m o cc D Q E i m Q m C o c3 m �3 D' F- r : p a CD L) _ CD LL- 0 V 0 rt w W� d C 0 u G @ m = � = i" c Q L LL U) V C3 C ... E Z"' �_ .� -- ... C D 7 �- .� _ � E C C] } 0 U 7 m p +Zf *� G L Nov a E z56 E acn 0 ma m CL ❑ mz im D. u cca ui vvw ax a= 00L n , nv osz _ � �m❑ a s a o❑ Q a L❑ z i; SO Gray Davis GOVERNOR March 5, 2002 STATE OF CALIFORNIA Governor's Office of Planning and Research State Clearinghouse Notice of Preparatio CITY OF SEA L BEACH To: Reviewing Agencies Re: Boeing Headquarters Site EIR SCH# 2002031015 MAR. 1 12102 DEPARWENT OF DEVELOPMEN r` SERVICES VP c ro :n Tal Finney INTERIM DIRECTOR Attached for your review and comment is the Notice of Preparation (NOP) for the Boeing Headquarters Site EIR draft Environmental Impact Report (EIR) . Responsible agencies must transmit their comments on the scope and content of the NOP, focusing on specific information related to their own statutory responsibility, within 30 days of recei t of the NOP from the Lead This is a courtesy notice provided by the State Clearinghouse with a reminder for you to comment in a timely manner. We encourage other agencies to also respond to this notice and express their concerns early in the environmental review process. Please direct your comments to: Mac Cummins City of Seal Beach 211 Sth Street Seal Beach, CA 947/44 61 with a copy to the State Clearinghouse in the Office of Planning and Research. Please refer to the SCH number noted above in all correspondence concerning this project. If you have any questions about the environmental document review process, please call the State Clearinghouse at (916) 445 -0613. Sincer ly //0" S co Morgan Project Analyst, State Clearinghouse Attachments cc: Lead Agency 1404 TENTH STREET P.O. Box 3044 SACRAMENTO, CALIFORNIA 95812 -3044 916- 445 -0513 FAX 916 -;23 -3018 www.opr.ca.gov NMI 4 Document Details Report State Clearinghouse Data Base SCH# 2002031015 Project Title Boeing Headquarters Site FIR Lead agency Seal Beach, City of Type N D P Notice of Preparation Description Proposed Specific Plan provides for four planning areas within the property. Planning Area 1 would maintain existing Boeing operations. Planning Area 2 allows for 145,300 square feet of new Light Industrial uses. Planning Area 3 allows approximately 725,004 square feet of light industrial uses. Planning Area 4 would be developed with a 120 room hotel and 32,500 square feet of retail. Project development would include an interior roadway system along with supporting utilities and other infrastructure systems. Lead Agency Contact Name Mac Cummins Agency - City of Seal Beach Phone 552 431 -2527 Fax email Address 211 8th Street City Seal Beach State CA Zip 90740 Project Location County Orange city Region Cross Streets Seal Beach BouievardWestminstef Avenue Parcel No. Township . Range Section Base Proximity to: Highways 1,22,1 405 Airports Los Alamitos Armed Forces Resery Railways Waterways San Gabriel River Schools Land Use light I ndustrial!M-1, Light Manufacturing Project issues Aesthetic/Visual; Agricultural Land; Air Quality; Archaeologic- Historic; Coastal Zone; Forest LandlFire Hazard; Flood Plain/Flooding; Drainage/Absorption; Geologic/Seismic; Job Generation; Housing; Minerals; Noise; Public Services; Schools/Universities; Septic System; Sewer Capacity; Soil Erosion/CompactiorVGrading; Solid Waste; ToxiclHazardous; Traffic/Circulation; vegetation; Water Quality; Water Supply; Wetland[Riparian; Wildlife; Growth Inducing; Landuse; Cumulative Effects - Reviewing Resources Agency; Calffornia Coastal Commission; Department of Conservation; Department of Parks Agencies and Recreation; Department of Fish and Game, Region 5; Native American Heritage Commission; State Lands Commission; Caltrans, District 12; Department of Housing and Community Development; Caltrans, Division of Aeronautics; California Highway. Patrol; Air Resources Board, Major Industrial Projects; Department of Toxic Substances Control; Regional Water Ouality Control Board, Region 8 Date Received 0314512002. Start of Review 03/05/2002 End of Review 04/03/2002 Note: Blanks in data fields result from insufficient information provided by lead agency. SOUTHERN CALIFORNIA ASSOCIATION of GOVERNMENTS March 8, 2002 Mr. Mac Cummins Assistant Planner City of Seal Beach Department and Development Services 211 Eighth Street Seal Beach, CA 90740 MY OF SEAL BEACH MAP I 1 200?- DePk.R MENT OF DEVELOPWIENT yERVICES RE: Comments on the Notice of Preparation for a Draft Environmental Impact Report for the Boeing Headquarters Site -- SCAG No. l 20020111 Main office Dear Mr. Cummins: 828 West Seventh Street %zth Floor Thank you for submitting the Notice of Preparation for a Draft .Environmental impact Los Angeles, Califomia Report for the Boeing Headquarters Site to SCAG for review and comment. As areawide clearinghouse for regionally significant projects, SCAG reviews the consistency of local 90017-3435 plans, projects, and programs with regional plans. This activity is based on SCAG's responsibilities as a regional planning organization pursuant to state and federal laws and t (2 -13) 236 -2fto regulations. Guidance provided by these reviews is intended to assist local agencies and x[2113) 236 -Ig25 project sponsors to take actions that contribute to the attainment of regional goals and policies. wwr. srag.Ca.SDV offwem tip. &TerMW )= M& . Cam of Sm bermrd= • FLm Yfct ?rewdeas: C n=d)nsanbv M bermon. Las AnrJcs - - . s ,d Yee rrcwd oc: wftx rm Ton bew peffy. Seta - 3snundsate ran rrssid = U yor YWm lams. Las ALinssias CAMMY.. XUA Luqxz.h I" Aortic County. YvomK A=6waiet brake. Lips Angelo Cow • 7ry Tuo drvsky Las AA=des Cyr - Harry fswwm. $an cabnd - hence Barrows. CeMKK. - Geoete SAM, ku - " fin. Lea Angela o Arie wik. Ito.es K" - Come DmAs, hrasaow - ja Aum Duty Smu Clarku - Fat* eaimer. Lai Angela - zrw ear«m. Ias Angeles - PAY Ql&". Lent beach • )LMC Mab- Las ► ngdes - Jmm H&b&.. Las Angeles Der Hai hami.Tacmxi - Nmee Hoicks:. Las Angela • Saudi+ lacob•. 8 serloda • L&WFMKC ILViky. In& ■ kMK L0WMtb9. LaUt bead - � �. Downey - Caody w . Ls Angela - U&M Murpby. assrhank • rasn C'Coc=x lam WIND - N kk Pwb=. I= Apia • Aki Taddla.. Los Aoteles. - Jim Prxr,. Las Angats • ftuna viva. P= Arven . wk RkkT- Tbccn-U. Los Anfeles - rd AcM. Lm A■r6s - Kum hommda a.rcmm - nKk Suok ed. Amp - Tom Sykes. wbkru - rassl 70am A%arnhn - SkIner T]M k.. Aedew - )ad Wachs. Lac Aspic - DennisNAshbom Calabnas - Ad Wwm.Lm Aortic - D� I ZW,1AA Abreks owe Cb■er: Chula s i. oraw COWNT - Am Sam. La Ahm km - Raiph lam. xunnnrm bca6 - Art buss . Dom r rk . Lou Smt. 70akn -1 6ube6 Coffin. Cam bku - Cuhr p neYossn g. Larsen Ntr„ d • Spa ns:m Lsks Fares( - Aha bake La h1ma • Swir bcCack= Anabem - k,r pen bsta •Tod Rwremi. Newpco beach die Caeor. &* bmff. limbile Calwy . Ion iavakdrt. xhcWat • Greg PeWL cam Cey - Ron �. � - ,an Ruda=. Caroms - Chubs wh,re, i iaerrao Nancy sm beraardiao Cmurir. Jas MAl13. San bmurdsno Cormt�' - AiCiandei. 1�aaChe: Cxatsma�a - DMW bhkarilrL kazana - Lee Assn Guava Nc t=4'tn Oman Hips - Jamb Wks. Sm 11troardmo VCKW C 4=r- )Wdy Milo. VEMnsn Gaoaty - ebm beams. U= vauer - naa:sa nt ruia. San -lani.PonH uVaswe Caw" t� PAbom LWAW- NE neVAL Sri We have reviewed the Notice of Preparation for a Draft Environmental impact Report for the Boeing Headquarters Site, and have determined that the proposed Project is regionally significant per Califomia Environmental Quality Act (CEQA) Guidelines (Section 15206 ). The proposed Project considers a proposed industrial, manufacturing, or processing plant, or industrial park to house more than 1,000 persons, occupying more than 40 acres of land, or encompassing more than 650,000 square feet of floor area. CEQA requires that EIRs discuss any inconsistencies between the proposed project and applicable general plans and regional plans {Section 15125 jdl }. if there are inconsistencies, an explanation and rationalization for such inconsistencies should be provided. Policies of SCAGes Regional Comprehensive ' Plan and Guide and Regional Transportation Plan, which may be applicable to your project, are outlined in the attachment. We expect the Draft EIR to specifically cite the appropriate SCAG policies and address the manner in which the Project is consistent with applicable core policies or supportive of applicable ancillary policies. Please use our policy numbers to refer to them in your Draft EIR. Also, we would encourage you to use a side-by-side comparison of SCAG policies with a discussion of the consistency or support of the policy with the Proposed Project. Please provide a minimum of 45 days for SCAG to review the Draft EIR when this document is available. If you have any questions regarding the attached comments, please contact me at (213) 236 -1867. Thank you. incerely, EY M. S ITH, AICP Senior Planner Intergovernmental Review - March 8, 2002 Mr. Mac Cummins Page 2 COMMENTS ON THE PROPOSAL TO DEVELOP A DRAFT ENVIRONMENTAL IMPACT REPORT FOR THE BOEING HEADQUARTERS SITE SCAG NO. { 20020111 PROJECT DESCRIPTION The proposed Project considers a Specific Plan for the Boeing Headquarters Site. The Project would provide for four planning areas, which would maintain the existing proposed . Boein 9 operations, provide for approximately 870,300 square feet of light industria. P space, a new '120 room hotel and 32,800 square feet of retail space. The Project would also include an interior roadway system along with supporting utilities and other infrastructures stems. The proposed Project is located at 2201 Seal Beach Boulevard in y _ the City of Seal Beach. CONSISTENCY WITH REGIONAL COMPREHENSIVE PLAN AND GUIDE POLICIES The Growth Management Chapter (GMC) of the Regional Comprehensive Plan and Guide (RCPG) contains the following policies that. are particularly applicable and should be addressed in the Draft EIR for the Boeing Headquarters Site. f 3.01 The P o P ulation, housing, and jobs forecasts, which are adopted by SCAG's Regional Council and that reflect local plans and policies, shall be used by 5 CA G ire all phases of implementation and review. . Regional Growth Forecasts The Draft EIR should reflect the most current SCAG forecasts which are the 2001 RTP (April 2001) Population, Household and Employment forecasts for the Orange County Council of Governments (OCCOG) subregion and the City of Seal Beach. These forecasts are as follows: OCCOG Subregionat Forecasts Population' Households Employment 2000 2005 2010 2018 2020 21888,828 310002094 311 88,932 31270,699 31343,824 909,708 9881887 1,001,220 11034,448 1,080,382 1 502 429 1,667,788 1 897 730 19978,472 - 21043,880 March 8, 2002 Mr. Mac Cummins Page 3 City of Seat Beach Forecasts Population Households Employment 2000 2005 2010 2015 2020 25,545 25,734 273819 28,497 23,984 139321 131405 133595 - 137697 13,754 101009 11.237 12,188 12,929 1,31500 3.03 The timing; financing, and location of public facilities, utility systems, and transportation systems shall be used by SGA G to implement the region's growth policies. The Regional Transportation Plan (RTP) also has oats, objectives, policies and 9 R 9 ! actions pertinent to this proposed project. This RTP links the goal of sustaining mobility with the goals of fostering economic development, enhancing the environment, reducing energy consumption, promoting transportation- friendly development patterns, and encouraging fair and equitable access to residents affected by socio- economic, geographic- and commercial limitations. Among the relevant goals, objectives, policies and 9 ra P actions of the RTP are the following: Core Regional Transportation Plan Policies s 4.07 Transportation investments shall be based on SCAG's adopted Regional Performance Indicators: Mob ili - Transportation Systems should meet the public need for improved access, and for safe, comfortable, convenient, faster and economical movements of people and goods. Average Work Trip Travel Time in Minutes — 25 minutes (Auto) ■ . PM Peak Freeway Travel Speed -- 45 minutes (Transit) . PM Peak Non - Freeway Travel Speed ■ Percent of PM Peak Travel in Delay (Fwy) Percent of P1 X 11 Peak Travel in Delay (Non -Fwy) Accessibility - Transportation system should ensure the ease with which opportunities are reached. Transportation and land use measures should be employed to ensure minimal time and cost. . Work opportunities within 45 Minutes door to door travel time (Mode Neutral] . Average transit access time March 8, 2002 Mr. Mac Cummins Page 4 Environment - Transportation system should sustain development and preservation of the existing system and the environment. (All Trips) COY RO G, NOx, PM 10, PM2. 5 — Meet the applicable SIP Emission Budget and the Transportation Conformity requirements Reliabili — Transportation system should have reasonable and dependable levels of service by mode. (All Trips) Transit -- 63 ■ High way — 76 Safe - Transportation systems should provide minimal accident, death and injury. (All Trips) Fatalities Per Million Passenger Miles — 0 Injury Accidents — 0 Egu vironmental Justice - The benefits of transportation investments should be equitably distributed among all ethnic, age and income groups. (Alt traps) B Income Croups Share of Net Benefits -- equitable Distribution of Benefits By _ among all income Quintiles . Cost - effectiveness - Maximize return on transportation investment All Trips. Air Quality, Mobility, Accessibility and Safety ■ Return on Total Investment — optimize return on Transportation Investments 4.02 Transportation investments shall mitigate environmental impacts to an acceptable level. 4.04 Transportation Control Measures shall be a priority. 4.16 Maintaining and operating the existing transportation system will be a priority over expanding capacity. GMC POLICIES RELATED TO THE RCPG GOAL TO IMPROVE THE REGIONAL STANDARD OF LIVING The Growth Management goals to develop urban forms that enable individuals to spend less income on housing cost, that minimize public and private development costs, and that. 'enable firms to be more competitive, strengthen the regional strategic goal to stimulate the regional economy. The evaluation of the proposed project in relation to the following policies would be intended to guide efforts toward achievement of such goals March 8, 2002 Mr. Mac Cummins Page 5 and does not infer regional interference with local land use powers. 3.05 Encourage patterns of urban development and land use, which reduce costs on infrastructure construction and make better use of existing facilities. 3.09 Support local jurisdictions' efforts to minimize the cost of infrastructure and public service delivery, and efforts to seek new sources of funding for development and the provision of services. 3.10 Support focal jurisdictions' actions to minimize red tape and expedite the permitting process to maintain economic vitality and competitiveness. GMC POLICIES RELATED To THE RCPG GOAL TO IMPROVE THE REGIONAL QUALITY of LIFE % The Growth Management goals to attain mobility and clean air goals and to develop urban forms that enhance quality of life, that accommodate a diversity of life styles, that reserve open space and natural resources, and that are aesthetically pleasing and reserve the character of communities, enhance the regional strategic goal of maintaining the re ional quality of life. The evaluation of the proposed project in relation to the following policies would be intended to provide direction for plan implementation, and does not allude to regional mandates. 3.12 Encourage existing or proposed local jurisdictions' programs aimed at designing 9 9' p p land uses which encourage the use of transit and thus reduce the need for roadwa y expansion, reduce the number of auto trips and vehicle miles traveled, -and create opportunities for residents to walk and bike. 3.1 3 Encourage local jurisdictions' plans that maximize the use of existing urbanized areas accessible to transit through infll and redevelopment. 3.16 Encourage developments in and around activity centers, transportation corridors, underutilized infrastructure systems, and areas needing recycling and redevelopment. 3.18 Encourage planned development in locations least likely to cause environmental impact. 3.20 Support the protection of vital resources such as wetlands, groundwater recharge 1 f areas, woodlands, production lands, and land containing unique and endangered plants and animals. March 8, 2002 Mr. Mac Cummins Page 5 3.21 Encourage the implementation of measures aimed at the preservation and protection of recorded and unrecorded cultural resources and archaeological sites. 3.22 development, Discourage a o ment, or encourage the use of special design requirements, in areas with steep slopes, high fire, flood, and seismic hazards. 3.23 Encourage mitigation measures that reduce noise in certain locations, measures aimed at preservation of biological and ecological resources, measures that would P reduce exposure to seismic hazards, minimize earthquake damage, and to develop emergency response and recovery plans. GM C POLICIES RELATED To THE RCPG GOAL To PROVIDE SOCIAL, POLITICAL, AND CULTURAL EQUITY ik 9 The Growth Management Coal to develop urban forms that avoid economic and social polarization promotes the regional strategic goal of minimizing social and geographic Po P 9 disparities and of reaching equity among all segments of society. The evaluation of the d csp 9 q P r op R ..' proposed roect in relation to the policy stated below is intended guide direction for the _ � accomplishment of this goal, and does not infer regional mandates and interference with accornp 9 . local land use powers. 3.27 pp Jun'sdictions Su ort local and other service. providers in their efforts to develop sustainable communities and provide, equally to all members of society, accessible and effective services, such as: public education, housing, health care, s recreational facilities law enforcement, and fire protection. social services, � . AIR QUALITY CHAPTER CORE ACTIONS The Air Quality chapter core actions related to the proposed project includes: 5.07 Determine specific programs and associated actions needed (e.g., indirect source P . rules enhanced use of telecommunications, provis ►on of community based shuttle `i vision of demand management based programs, or vehicle--rniles- services, pro g P traveledlemission fees ) so that options to command and control regulations can be assessed. Through the environmental document review process, ensure that plans at all 5. ?? g . f levels of government (regional, air basin, county, subregional and local] cons ►der 9 air quality, land use, transportation and economic relationships to ensure March 8, 2002 Mr. Mac Cummins Page 7 consistency and minimize conflicts. DATER QUALITY CHAPTER RECOMMENDATIONS AND POLICY OPTIONS The `water Quality chapter core recommendations and policy options relate to the two water uali vacs: to restore and maintain the chemical, physical and biological integrity q ty g of the nation's water, and, to achieve and maintain water quality objectives that are necessary to protect all beneficial uses of all waters. 11.07 Encourage water reclamation throughout the region where it is cost - effective, feasible, and appropriate to reduce reliance on imported water and wastewater discharges. Current administrative impediments to increased use of wastewater should be addressed. CONCLUSIONS All feasible measures needed to mitigate any potentially negative regional impacts associated with the proposed project should be implemented and monitored, as required a P p by CEQA... • March 8, 2002 Mr. Mac Cummins Page 8 SOUTHERN CALIFORNIA ASSOCIATION OF GOVERNMENTS Boles and Authorities THE SOUTHERN CALIFORNIA ASSOCIATION OF GOVERNMENTS (SCAG) is a Joint Powers Agency established under California Government Code Section 6562 et seq. Under federal and state law, SCAG is designated as a Council of Govemments (COG ), a Regional Transportation Planning Agency (RTPA), and a Metropolitan Planning organization (MPO ). SCAG`s mandated roles and responsibilities include the following: SCAG is designated by the federal government as the Region's Metropolitan Planning Organizat�'on and mandated to maintain a continuing, cooperative, and comprehensive transportation planning- process resulting in a Regional Transportation Plan and a Regional Transportation Improvement Program pursuant to 23 U.S.C. '134, 49 U.S.C. '530'1 et seq., 23 C.F.R. '450, and 49 C.F.R. '613. SCAG is also the designated Regional Transportatfon Planning Agency, and as such is responsible for both preparation of the Regional Transportation Plan (RTP) and Regional Transportation Improvement Program (RTIP) under California Government Code Section 65080 and 65082 respectively. SCAG is responsible for developing the demographic projections and the integrated land use, housing, employment, and transportation programs, measures, and strategies portions of the South Coast Air Quality Management Plan, pursuant to California Health and Safety Code Section 40460(by(c). SCAG is also designated under 42 U.S.C. 7504(a) as a Co -Lead Agency for air quality planning for the Central Coast and Southeast Desert Air Basin District. SCAG is responsible under the Federal Clean Air Act for determining Conformity of Projects. Plans and Programs to the State Implementation Plan, pursuant to 42 U.S.C. 7506. Pursuant to California Government Code Section 65089.2, SCAG is responsible for reviewing all Congestion Management Plans {CMPs} for consistency with regional transportation plans required by Section 65080 of the Government Code. SCAG must also evaluate the consistency and compatibility of such programs within the region. SCAG is the authorized regional agency for Inter- Governmental Review of Programs proposed for federal financial assistance and direct development activities, pursuant to Presidential Executive Order 12,372 (replacing A -95 Review ). SCAG reviews, pursuant to Public Resources Code Sections 21083 and 21087, Environmental Impacts Reports of projects of regional. significance for consistency with regional plans [Caldomia Environmental Quality Act Guidelines Sections 15206 and 15125(b )]. Pursuant to 33 U.S.C. '1288(a ) (2) (Section 208 of the Federal Water Pollution Control Act ), SCAG is the authorized Areawide Waste Treatment Management Planning Agency. SCAG is responsible for preparation of the Regional Housing Needs Assessment, pursuant to California Government Code Section 65584(a ). SCAG is responsible (with the Association of Bay Area Governments, the Sacramento Area Council of Governments, and the Association of Monterey Bay Area Governments) for preparing the Southern California Hazardous Waste Management Plan pursuant to Califomia Health and Safety Code Section 25135.3. Revised July 2001 ji South Coast Air Quality Management District 21865 E. Copley Drive, Diamond Bar, CA 91765 -4182 (909) 396 -2000 • http: / /www.agmd.gov March 8, 2002 MI. Mac Cummins City of Seal Beach 211 Eighth Street Seal Beach, CA 40740 . Dear Mr. C • Notice of Preparation of a Draft Environmental Impact Report for Boeing Headgua „rters Site The South Coast Air Quality Management District (AQMD) appreciates the opportunity to comment on the above- mentioned document. The AQNID's comments are recommendations regarding the analysis of potential air quality impacts from the proposed project that should be . included in the Draft Environmental Impact Report (EIR), Air Quality Ana lvsis The AQMD adopted its Galifomia Environmental Quality Act (CEQA) Air Quality Handbook in 1993 to assist other public agencies with the preparation of air quality analyses. The AQIvID recommends that the Lead Agency use this Handbook as guidance when preparing its air quality analysis. Copies of the Handbook are available from the AQMD's Subscription Services Department by calling (949) 396 -3720. The - Lead Agency should identify any potential adverse air quality impacts that could occur from all phases of the projcot and all air pollutant sources related to the project. Air quality impacts • from both construction and operations should be considered. Construction- related air quality impacts typically include but are not lirrlited to, emissions from the use of heavy -duty equipment from grading, earth- loadinglunloading, paving, architectural coatings, off -road mobile sources heave -duty oonst =Uon equipment) and on -road mobile sources (e,g., construction worker vehicle trips, material transport trips). Operation- related air quality impacts may include, but are net limited to, emissions from stationary sources (e,g,, boilers), area sources (e.g., solvents and coatings), and vehicular trips (e.g., on- and ofd' -road tailpipe emissions and entrained dust). Air P quality impacts. from indirect sources, that is, sourm that generate or attract vehicular trips should be included in the evaluation. An analysis of all toxic air contaminant impacts due to the mommissioning or use of cquipment potentially generating such air pollutants should also be included. Mr. Mac Cummins -2- March 08, -)00,7 Mitigation Measures In the event that the P 3 ro' ect generates significant adverse air quality impacts, CEQA requires that all feasible mitigation measures be utilized during project construction and operation to minimize or eliminate si ificant adverse air quality impacts. To assist the Lead Agency with identifying � q �' P possible mitisration measures for the project, please refer to Chapter 11 of the AQMD CEQA Air Quality Handbook for sample air quality mitigation measures. Additionally, AQMD's Rule 403 — Fugitive Dust, and the Implementation Handbook contain numerous measures for controlling construction-related emissions that should be considered for use as CEQA mitigation if not otherwise required. Pursuant to state CEQA Guidelines §15126.4 ( any impacts resulting from mitigation measures must also be discussed. Data Sources. AQNID rules and relevant air quality reports and data are available by calm the AQMD's Public Information Center at (909).396-2039. Much of the information available through the Public Information Center is also available via the AQNID's World Wide Web Homepage (h=://www.aamd.gov. The AQMD is willing to work with the Lead Agency to ensure that project-related emissions are accurately idenf.fie� categorize, and etral�d. Please call Dr. Charles Blankson, 40 Transportation Specialist, CEQA Section, at (909) 396 -3304 if you have any questions regarding this letter. Sincerely, Steve Smith, Ph.D. Program Supervisor, CEQA Section Planning, Rule Development and Area Sources SS:CB :Ii QRCO20305 -02LI Control Number NATIVE AMERICAN HERITAGE COMMISSION 9r5 CAPITOL MALL,, ROOM 364 SACRAMENTO, CA 95814 (916) (916) 557 -5390 - Fax Cri �' . �= 5 FA! BEACH March 13, 200, r 1 Mac Cummins DEPARTMENT OF City of Seal Beach DEVELOPMENT SERVICES 211 8t' Street now Seal Beach, CA 90740 RE: SCH# 2002031015 - Boeing Headquarters Site EIR Dear Mr. Cummins: The Native American Heritage Commission has reviewed the above mentioned NDP. To adequately assess and mitigate project - related impacts on archaeological resources, the Commission recommends the following actions be required: V Contact the Native American Heritage Commission for: • A Sacred Lands File Check. • A list of appropriate Native American Contacts for consultation concerning the project site and to assist in the mitigation measures. •� Lack of surface evidence of archeological resources does not preclude their subsurface existence. ■ Lead agencies should include in their mitigation plan provisions for the identification and evaluation of accidentally discovered archeological resources, per California Environmental Quality Act (CEQA) §15064.5 (f). In areas of identified archaeological sensitivity, a certified archaeologist and a culturally affiliated Native American, with knowledge in cultural resources, should monitor all ground- disturbing activities. ■ Lead agencies should include in their mitigation plan provisions for the disposition of recovered artifacts, in consultation with culturally affiliated Native Americans. ■ Lead agencies should include provisions for discovery of Native American human remains in their mitigation plan. Health and Safety Code §7050.5, CEQA §15064.5 (e), and Public Resources Code §5097.98 mandates the process to be folldwed in the event of an accidental discovery of any human remains in a location other than a dedicated cemetery. Sincerely, Rob Wood Environmental Specialist III (916) 553 -4040 CC: State Clearinghouse �w �r w � rrr ��1^U -LONG BEACH CITY OF Department of Planning and Building 333'W. ocean Boulevard Long Beach, CA 94802 (562) 570 -6428 FAX (562) 570 -6753 ADMINISTRATION March 14, 2002 Mr. Mac Cummins Assistant Planner City of Seal Beach 211 Eighth Street Seal Beach, CA 90740 CITY OF SEAL BEACH MAR 1 8 2002 DEPARTMENT of DEVELOPMENT SERVICES Subject: P -- Notice of Preparation of Draft EIR specific Plan for Use of 50 Acres of Boeing Space and communications Headquarters Property - 2201 seal Beach Boulevard Dear Mr. Cummins: Thank you for the opportunity to comment on the environmental issues that should be addressed in the Draft EIR. (We respectfully request a copy of the Draft EIR when completed.} The project consists of approval of a Specific Plan for Land Use and circulation, a Vesting. Tentative Tract Map, a coastal Development Permit, and possible Development Agreement, Conditional Use Permits andi, other approvals for 870,300 sq. ft. of light industrial, 32,800 sq. ft. of retail and a 120 -room hotel. has the potential to impact Long Beach. The proposed light industrial abuts The proposal P . mmunit in the City of Lon Beach, known as Island. Village (7,000 block of a residential community Y g Westmins ter Avenue ) g . This light industrial research and development area should be designed to minimize potential impacts to this community. The interface should sensitively g P provide landscape screening. The type of industry uses should not be noise or odor g . intensive. development The develo ment standards or development approval should prevent outdoor activities near the westerly property line. Also, any multi -story research and development building should be set back from the westerly property line. Truck loading docks and circulation p attems should be located and designed to minimize impacts to, the adjacent residential. used traffic stud should provide traffic estimates, and destinations and address The prop Y P roadway capacities and intersection "Levels of Service" (LOS) for peak traffic pen. ods. The traffic study should indicate bath vehicle and truck traffic estimates. Also, in the city of Long Beach, Westminster Avenue and Studebaker Road are not truck routes and, therefore, the Draft EIR should address the circulation routes for trucks. The traffic study should address the LDS for the intersections of Westminster/Studebaker, Westminster /Pacific coast Highway and Westminster /island Village Drive. Draft B1R BBC March 14, 2002 - Page 2 circulated, lease send a copy to my attention. When the Draft l�l R �s p Sincerely, E e J. eller Di c o of Planning and Building Lit: [Seal Beach DBIRI 6 Winston H. Hickox Agency Secretary California Environmental Protection Agency Department of Toxic Substances Control March 18, 2002 Mr. Mac Cummins Assistant Planner City of Seal Beach 211 Eighth Street Seal Beach, California 90740 Edwin F. Lowry, Director 5795 Corporate Avenue Cypress, California 90530 *10A C� DF SEP- lyq? of osuo��111 Gray Davis Governor NOTICE OF PREPARATION OF AN ENVIRONMENTAL IMPACT REPORT FOR THE BOEING HEADQUARTERS SITE (SCH #2002031015) Dear Mr. Cummins: The Department of Toxic Substances Control (DISC) has received your Notice of Preparation .(NOP) of a draft Environmental Impact Report (EIR) for the above- mentioned project. Based on the review of the document, DTSC's comments are as follows: 1) The draft EIR needs to identify and determine whether current or historic uses at the Project site have resulted in any release of hazardous wastes/substances at the Project area. 2) The draft EIR needs to identify any known or potentially contaminated site within the proposed Project area.. For all identified sites, the ND needs to evaluate whether conditions at the site pose a threat to human health or the environment. 3) The draft EIR should identify the mechanism to initiate any required investigation and /or remediation for any site that may require remediation, and the government agency to provide appropriate regulatory oversight. 4 The NOP indicates that the project site which is located on a list of hazardous materials sites compiled pursuant to Government Code Section 88982.8 }, and as P a result } would create a significant hazard to the public or the environment. The _ - NOP also recommends that due to the current and/or historic uses of hazardous substances on -site further review and analysis of this potential impact is required. Therefore, an environmental assessment should be conducted at the P roject area to evaluate whether the site is contaminated with hazardous � The energy challenge facing California is real. Every Californian needs to take immediate action to reduce energy consumption. For a list of simple ways you can reduce demand and cut your energy costs, see our Web -she at www. disc. ca. gov. Eb Printed on Recycled Paper Mr. Mac Cummins March 18, 2002 Page 2 - substances from the potential past and current uses including storage, transport, generation and disposal of toxic and hazardous waste /materials. 8 Any hazardous wastes /materials encountered should be remediated in accordance with local, state, and federal regulations. Prior to initiating any construction activities, an environmental assessment should be conducted to determine if a release of hazardous wastes /substances exists at the site. If so, further studies should be carried out to delineate the nature and extent of the contamination. Also, it is necessary to estimate the potential threat to public health and/or the environment posed by the site. It may be necessary to determine if an expedited response action 4 required to reduce existing or potential threats to public health or the environment. If no immediate threat exists, the final remedy should be implemented to compliance with state regulations and policies rather than excavation of soil prior to any assessments. 8 All environmental investigation and /or remediation should be conducted under a Workplan which is approved 'may a regulatory agency who has jurisdiction to oversee hazardous waste cleanups. complete characterization of the soil is needed prior to any excavation or removal action. 7 If ve etabon or agricultural use occurred on the project site in the past, onsite _ soils could contain pesticide residues. Proper investigations and remedial actions should be conducted at the site prior to the new development. 8 } proposed If the project is planning to demolish any old -.buildings during the p develo ment, investigate the presence of lead paints and asbestos containing materials } ACMs in the currently existing building structures. If the presence of t lead or ACMs is suspected, proper precautions should be taken during any future demolition activities. Additionally, the contaminants should be remediated in compliance with the California environmental regulations. 9 The NCP states that the United States Naval Weapons Station (USNWS)-Seal Beach id located to the east of the project site, across Sea) Beach Boulevard. According to DTSC's CalSites database, USNWS is a contaminated site and currently an Annual Workplan- Active Site }. If the proposed project is within 2,000 feet from a contaminated site, then the proposed development may fail fr under the "Border Zone of a contaminated Property." Appropriate precautions should be taken prior to construction if the proposed project is on a "Border Zone Property. 1 g } The project construction may require soil excavation and/or soil filling in certain p ro� Mr. Mac Cummins March 18, 2002 Page 3 areas. Appropriate ro riate sampling is required prior to disposal of the excavated soil. if the soil is contaminated, properly dispose it rather than placing it in another location. Land Disposal Restrictions (LDRs) may be applicable to these soils. Also, if the project is planning to import -soil to backfill the areas excavated, P ro should be conducted to make sure that the imported soil is free P er sampling P g of contamination. 11 if it is determined that hazardous wastes are, or will be, generated by the } ry osed project, the wastes must be managed to accordance with the California P ro' P P � Hazardous Waste Control Law (California Health and Safety code, Division 20, 5 6. Chapter and the Hazardous Waste Control Regulations (California code of P } Regulations, Title 22, Division 4.5 }. 12) If it is determined that hazardous wastes are or will be generated and the wastes are (a) stored in tanks or containers for more than ninety days, (b) treated onsite, or (c) disposed of onsite, then a permit from DTSC may be required. The facility should contact DTSC at (818) 551 -2171 to initiate pre application discussions and determine the permitting process applicable to the facility. 13) If it is determined that hazardous wastes will be generated, the facility should obtain a United States Environmental Protection Agency ldentffication Number by contacting (800) 618 -6942. 14) Certain hazardous waste treatment processes may require authorization from the local Certified Unified Program Agency (CUPA). Information about the requirement for authorization can be obtained by contacting Mr. Steven Wong, Interim Director, Orange County Health Care Agency, the CUPA- designated agency at (714) 667 -3771. 15) If the proposed project discharge treated waste water to the sewer, a discharge permit should be obtained from the Regional Water Quality Control Board. g g 1�} A groundwater investigation may also be necessary based on the nature of on- site contaminants and the depth to the groundwater. The NOP states that the Phase l Environmental Assessments concluded that past operations within the project underground area have included: under round storage tanks, groundwater monitoring wells water wells, a wastewater discharge line extending from the existing building operations to the San Gabriel River, piping connecting plating tanks, sumps/clarifiers, electric substations that utilized PCB- containing fluids, chemical and hazardous waste storage and an oil well. Additionally, a trichloroethylene Mr. Mac Cummins March 18, 2002 Page 4 (TCE) groundwater plume associated with the historic storage of hazardous substances on the USNWS has traveled in a southeasterly direction adjacent to the site. 17) If during construction of the project, soil and /or groundwater contamination is suspected, construction in the area should cease and appropriate Health and Safety procedures should be implemented. If it is determined that contaminated soil and/or groundwater exist, the draft EIR should identify how any required investigation and /or remediation will be conducted, and the government agency to provide appropriate regulatory oversight. DTSC provides guidance for the Preliminary Endangerment Assessment (PEA) preparation and cleanup oversight through the Voluntary Cleanup Program (VCr). Also, DTSC is administering the $85 million cleanup Loans and Environmental Assistance to Neighborhoods (CLEAN) program, which provides low- interest loans to investigate and cleanup hazardous materials at properties where redevelopment is likely to. have a beneficial impact to a community. The CLEAN program .consists of two main components: low interest loans of up to $100,000 to conduct PEAS of underutilized .properties; and loans of up to 2.5 million for the cleanup or removal of hazardous materials also at underutilized urban properties. These loans are available to developers, businesses, schools, and4ocal governments. For additional information on the VCP of CLEAN program, please visit DTSC's web site at www.dtsc.ca. ov. If you would like to meet/discuss this matter further, please contact Mr. Johnson P. Abraham, Project Manager at (714) 484 -5470. Sincerely, Haissam Y. Salloum, P.E. Unit chief Southern California cleanup operations Branch Cypress Office r Mr. Mac Cummins March 18, 2002 Page 5 cc: Governor's office of Planning and Research State Clearinghouse P.C. Box 3044 Sacramento, Califomia 95812 -3044 Mr. Guenther W. Moskat, Chief Planning and Environmental Analysis Section CBCA Tracking Center Department of Toxic substances Control P.G. Box 855 Sacramento, California 95812 -0805 � The Gas Company- A Sempra Energy company March 25, 2002 City of Seal Beach 211 Eighth St. Seal Beach, CA 90740 Attention: Mac Cummings CY OF SEAL BEACH MAR 2 8 2002 DEPAMMENT OF DEVELOPMENT SERy�CES Southern California Gas Company 1919 S. State College, Bldg. A Anaheim, CA 92803 Sub 0 ect: Notice of p reparation of a Draft E.I.R., Boeing Headquarters Site. This letter is not to be interpreted as a contractual commitment to serve the proposed project but only as an information service. Its intent is to notify you that the Southern California Gas Company has facilities in the area where the above named project is proposed. Gas service to the project could be served without any significant impact on the environment. Gas facility additions for the expansion would be in accordance with the company's policies and extension rules on file with the California Public Utilities Commission at the time contractual arrangements are made. The availability of natural gas service, as set forth in this letter, is based upon present conditions of gas supply and regulatory policies. As a public utility, the Southern California Gas Company is under the jurisdiction of the California Public Utilities Commission. We can also be affected by actions of gas supply or the condition under which service is available, gas service will be provided in accordance with revised conditions. Estimates of gas usage for non - residential and residential projects are developed on an individual basis and are obtained from the Commercial- Industrial/Residential Market Services Staff by calling (800) 427 -2000. We have developed several programs, which are available upon request to pro-Vide assistance in selecting the most �ergyy e� cient appliaunces or s-�rsten-ts for �a p►a L &L project. If you desire further information on any of our energy conservation programs, please contact this office for assistance. Sincerel , Robert S. Warth Technical Supervisor Orange Coast Region eir.doc STATE OF CALIFORNIA -- -BUSINESS TRANSPOR'T'ATION AND HOUSING AGENCY GRAY DAVIS Governor DEPARTMENT OF TRANSPORTATION DISTRICT 72 REGIONAL PLANNING iGR/ CEQA BRANCH 120 SG. SPRING ST. OV COE L LOS ANGELES, CA 90012 PHONE (213) 897 -6535 r C2 FAX (213) 897 -1337 of cc LOp�� Mr. Mac Cummins Planning Department City of Seal Beach 211 Eighth Street Seal Beach, C.A. 90740 RE: IGIZICEQA4 020365NY Notice of Preparation Boeing H.Q. Site EIR LA1001 I March 27, 2002 Dear -Mr.Mac C Flex your power! Be energy ejficxent! Thank ou for including the California Department of Transportation (Caltrans) Mn the Y g environmental review process for Boeing H.Q. Site Project. Based on the information received, and to assist us in our efforts to completely evaluate d assess the impacts of this project on the State transportation system, a traffic study in an p P J advance of the DEIR should be prepared to analyze the following information: 1. Assumptions and methods used to develop trip generation/distribution, percentages and assignrnentsof - 2. An analysis of ADT, AM, and PM peak -hour volumes for both the exist' and future conditions. This should include Highway 1 (PCH) mg crossroads, and controlling intersections. 3. This analysis should include project traffic, cumulative traffic generated for all approved developments in the area, Interchange Utilization ation (I.C.U.) . and Level of Service (LOS) of affected freeway ramp intersections on the State Highway indicating existing + project(s) + other projects LOS (existing and future). Mr.Mac March 27, 2002 Discussion of mitigation measures appropriate to alleviate anticipated 4. g traffic impacts. These mitigation discussions should include, but not be limited to, the following: o financing o scheduling considerations o implementation responsibilities o monitoring plan 5. Developer's percent share of the cost, as well as a plan of realistic miti ation measures under the control of the developer should be addressed. An_ y assessment fees for mitigation should be of such as to cover mainline highway deficiencies that occur proportion as a result of the: traffic generated by the project. We to ok forward to reviewing the DEIK We expect'to receive a copy from the State Clearinghouse. However, to expedite the review process, you may send two copies in advance to the undersigned at the following address: Stephen Buswell • IGRICEQA Branch Chief • Galtrans District 07 Regional Transportation Planning Office 120 S. Spring St., Los Angeles, CA 90012 you have an questions, lease call Mr. erjanian at [213) 597 -6536 and refer to Ify y P IGRICEQA # 020365NY. Sincerely, STEPHEN J. BUSWELL IGRICEQA Branch Chief Transportation Planning Office 'Caltrans improves mobility across California' STATE OF CALIFORNIA -- BUSINESS AND TRANSPORTATION AGENCY GRAY DAVIS, Governor DEPARTMENT OF TRANSPORTATION DISTRICT 12 3337 Michelson Drive Suite 380 - Irvine, CA. 92512 -5894 FAX AND M AI L April 2, 2002 Mr. Mac Cummins Pile: IG R1C EQA City of Seal Beach SCHM 200203/015 211 - 8u' Street Log* 836B Seal Beach, CA 90740 SR #: 405 & PC H Subject: Notice of Preparation (NOP) of a Draft Environmental Impact Report (DEIR) for Boeing Headquarters Site (formerly known as the Pacific Gateway Project) % Dear Mr. Cummins; Thank you for the opportunity to review and comment on the NOP for the Boeing Headquarters Site EIR prepared March 2, 2002. The proposed project will be located at the Boeing Space and Communications Headquarters complex at 2241 Seal Beach Boulevard near Westminster Avenue in the city of Seal Beach. According to the NOP, this EIR originated from a Mitigated Negative Declaration (MND) prepared for a project entitled the Pacific Gateway Project located at the same Boeing Headquarters site. The MND was prepared and circulated by the city of Seal Beach in March 2401. Comments were raised from resource agencies whether or not three drainage areas located on the project site characterized a wetland. Subsequently, Boeing conducted site - specific biological and regulatory analyses of the drainage areas. Additional analyses relating to alternative land uses were also performed. As a result, the Pacific Gateway Project MND was revised in to this DEIR to better respond to operational factors and other constraints identified in subsequent analyses. Caltrans District 12 status Is a reviewing agency on this project and has the following comments: 1. The Traffic Forecasting Branch agrees that a full traffic analysis should be performed to analyze the total impact after development on the roadway system, specifically on Pacific Coast Highway (SR-1), 1405 and SR -22: 2. The Traffic Operations Branch states that the traffic impact study should include the State highway facilities that will be adversely impacted by the traffic to be generated by the proposed development. "State highway facilities" includes highways and intersections, freeway ramps and intersections, and freeway mainlines: 3. Please include 25 -year traffic projections when analyzing long- and short -term effects; 4. Please discuss cumulative impacts of all nearby developments that will be affected by the project; 5. Mitigation measures should assure that traffic/circulation is maintained at an adequate level of service, or any adverse impacts are reduced to a level of insignificance. Mitigation measures APR -02 -2002 12 :46 ?14 ?24 99% P.02 should include the funding responsibilities, sources, and schedules for implementation (e.g. be clear as to what work is to be done. who will do what, when it should occur and the source of funds to accomplish the work). The DEIR should discuss developer financing of improvements to State facilities that will become necessary as a Consequence of this proposed development. Finally, a monitoring program should be part of the D E I R; 6. We are enclosing two guidance documents: (1) Su estedTraffrc Mitigation Measures, and (2) Caltrans' Guide for the Pre aration of Traffic Impact Studies for your consideration. Please continue to keep us informed of this project and other future developments that could potentially mpact the transportation facilities. If you have any questions or need to contact us, please Y do not hesitate to call Becky Shumway (949) 440-4461. Sincerely, Robert F. Jose f Advanced Planning Branch Enclosures cc: Ron Helgeson Terry Roberts Saied Hashemi Charlie -Lankood f APR - 02--2002 12 =46 714 724 P.03 SUGGESTED TRAFFIC MITIGATION MEASURES NEW CONSTRUCTION 1. Adopt measures that require developer contributions for transportation improvements. These funds could be used for building new freeways, widening freeways 1 and major arterials, construction separate mass transit and car /van pool lanes, and park -and -ride facilities. 2. Computerize traffic signals and freeway ramp meters. 3. Coordinate urface street traffic signals with freeway traffic flow (pre- emptive traffic na to 9 signals). 4. construct separate car/van pool lanes on freeway access ramps. 5. improve the metering system on freeway ramps. f. Provide bus benches and shelters, and bus turnouts. 7 p rove lm transit stop acilities (security, fare policies, maintenance, etc.) P TRANSIT MANAGEMENT EFFICIENCY MEASURES 1. Improve the incident response system. 2. Improve the highway surveillance system (install video cameras and other electronic devices). 3. Improve the driver information system. 4. Improve the enforcement of current traffic regulations. DEMAND MANAGEMENT - Altematives to single Occupancy Vehicles 1. Encourage ride- sharing through outrea6h, education and incentives. 2. Set -up an independent areas wide ride - coordination office. 3. Encourage the use of buses or mass transit. 4. Expand mass transit to include dial -a -ride and other shuttle /express services. 5. Adopt ride - sharing policies that encourage employers to raise their person- per-vehicle average. 6. Construct bus turn -outs and bus shelters. 7. Work with local transit providers requesting additional service to specified areas. PARKING 1. construct park - and -ride facilities near major existing and new residential developments. 2. Construct fewer on -site parking spaces and provide car/van pool vehicles preferential parking. 3. Adopt a parking- pricing scheme which varies with the number of passengers, i.e. the higher the number of passengers, the larger the rate reduction. 03/07/02 APR- 02 -2a ©2 46 ?14 724 ss; P. ©4 Suggested Traffic Mitigtion Measures Page 2 BICYCLES 1. Install call boxes on bike paths. functional bicycle facilities (bike trails, install bike path .lighting). �. construct add�t�onal fu y 3. Plan and construct bike trails through residential and other community areas that lead to main bike lanes. REDUCE PEAK - PERIOD TRAVEL n (staggered hours flex -time, 4 -day week). 1. Encourage work hour rescheduli g , 2. Adopt measure .s . s which minimize.truck travel during peak travel periods. LAND USE CONTROLS 1. Promote policies that encourage the simultaneous development of industrial, commercial and entertainment centers with residential communities. 2. Promote p 9 policies that encourage other mixed -uses (such as the construction and maintenance of bike facilities) and discourage urban sprawl 3. Adop t p . olicies that al .low new development only when transportation facilities can handle the additional capacity. 03/07/02 APR -02 -2002 12 =47 714 724 99% P.05 rir f\ -KJC. GVVG L +A i• r GUIDE FOR THE PREPARATION OF TRAFFIC IMPACT STUDIES STATE OF CALIFORNIA DEPARTMENT OF TT2ANSPORTATION January 2001 APR -02 -2002 12:47 714 724 99% P.05 - PREFACE .•` Transportation Cadtrarrs has developed this "Guide fort the r-niu De artmenr of Transports o { The �ulifo P cities and counties in CaliforixtC�. Im act Studies in response to Q survey of . Preparurr on of Traffic P rev? e�+� process (also . . survey it-as to improve the Caltrons local development p The purpose of Mar s y P Act or IGRICEO.4 • nmental Revie-wlCalifornia Envrronmenrar �ual�ry �4 known as the Intergotier IMW 3D percent a the respondents weTe not axlarc• of r-�� indicated that approximately p process). The su e3 aired in ❑ rJ•affic impact study (TIS). what Cadt runs re g . located in Fresno identified a need to provide h early 19 9qs. the Cal trans District � once In the � , . traffic rm acts errerated by local development and and consistency In the analysis of traff P hewer quadrn that me District � brought change proposals osals that effect Stare high %ray facilities. At r ri land use c p a traffic impact study garde. The r h ih xrhlic and rivate sector expertise to develop P . together o P P • successful at romorin consisrenci. and uni formiry in ncC District 6 guide ha.� prove to �e P � �.t. g � enerated' b1� Icrcal development and land use c hcrngc identification and analysis of traffic impacts . � red ar statewide use by a seam of headquarters artc! Tlie aide developed to Fresno �� us adap ,f g district staff. The guide W ill Y- ovide consistent guidoncefor Caltruns staff who revrex• local in f o rmation development and land use change proposals as well as in form local age ncies of the 1U � acilities. The guide K'i'd! also nt to anal �e the traffic impacts to Stare hrg uy f g needed fog Calrra Jr' • nt Communi � her providing more expedrtinus re��rel1 of hc�iic� it local u�rencres and the developme p g local del•c•l()pment propQ.rals. tin practices ivere used to adapt the Fresno f IS - ruldc. it F. ren though sound plurtnrrig crud engineering P d r.� Enrc r��red rhar changes occur over time as new technologies and more acirc e ' this g irtde !r) hz c cnc c v Urluh le Tu . lacil irate thesc changes. Calrrans encourages oll those �1�1n usC rh ecnrcer tic�, nearest district office (i.e., IGRICEDA Coordinators) to coordinate ony churrgcS vi the dcoitelopmviv ieanr. f A CK2V O WLED DEMENTS • ' • tud uide pro the impetus and a starting point for develop1)79 TI ?c l�r.� rrrcr � tr-c� fir c r rripu cr s y g• P P r u T1.S iol thanks is given to Marc Birnbaum for recognL ing the need . f o rltc ;rare �� rcl� guide. . Spec g a experience and vast knoxlled e o land use planning to sign if c•unr1) �� rrdcf rend for his i al ue d expe g f c e'! Th[nt C 1 lJL C f fCl t t U adapt the District b guide for statewide use. Randy Treece .f -ont District 6 pf o► rlcd ►iurt hours of conrdrnat r n . research and development of the original guide and shou ld t efforts. Shorri Bender Ehlert of Di strict 6 provided much of the hc' C�rjrtl�r? � tilt cl {r)i his drdrgen ff - .. rr n o the District guide and her- e� orts are greatly apprecialed lechnicul rxp{ r t►te i17 the udupru o ,f g . .4 spc e rul lrrir ?. S rs culso given to all those Cities. Counties. Regional Agencies. Congestion t nts crud Caltr-ans Ein Iovees ►t'ho reviexped the guide acid pr'ovide'd 0 .t l�,i�uge�1TC,1r .agencies. Cunsud a P • f • deS•ero merry o this Guide fo r• the Preparat ion of Traff c Impact Studie.t rrt t[t rllrr Pri�, flit p f P PPR -02 -2002 12 :47 714 724 99% P.0? 'ABLE OF CONTENTS Contents PREFACE and ACKNOWLEDGEMENTS OWLEDGEMENTS �. IrRDDUCTIDN II. WHEN A TRAFFIC IMPACT STUDY IS DEEDED A. Trip Generation Thresholds B. Exceptions Existing Traffic Impact Study C. ljpdatan� Ain � III. SCOPE OF TRAFFIC IMPACT STUDY A. Boundaries of the Traffic Impact Studer B. Traffic Analysis Scenarios Iv. TRAFFIC DATA A. Trip Generation B. Traffic Counts C. Peak Hours . Travel Forecastin (Transport ation Modeling) D. Tra 1 g V. TRAFFIC IMPACT ANALYSIS METHODOLOGIES A. F.reetWa.. Sections B. .Weaving Areas C. Ramps and Ramp Junctions . D. Multi -lane Rural and Urban .Highways E. Two -lane Highways F. Signalized Intersections G. U ns i gnat ized Intersections H. Transit Capacity I. Pedestrians J. Bicvcles K. Galtrans Criteria/Warrants �.. Channelization MITIGATION MEASURES Minimum Contents of Traffic Impact Study gppe ndr � "A" M • ., ., Methodology for Calculating Equitable Mitigation Measures Appendix B Appendix •C Measures of Efectiveness b•• Faciity Type Pale Number ii 1 1 2 4 4 4 4 5 3 501 ft :4� X14 ?24 P. 08 APP -02 -2002 12 I. INTRODUCTION _ r the citizens of State trans ovation system fo roti�ide a safe and efficient S P . This is Caltrans desires to p Streets and I-iighway Code ti•arious Sections of the California e California pursuant to h procedures established by th • with local and regional agencies throng done in partnership j d use Tanning processes. The • Quality Act (CEQA) and other lan p California Environmental basis in which Caltrarns • starting point and a consistent intent of this guide is to prov ide a P f this guide for local hr hwa ° facilities. The applicability o g evaluates traffic impacts tc state g } effected jurisdiction. wa s is at the discretion of the of streets and roads (non -State high Y } projects'. and land use change ' federal. state, and local agency development P � Caltrans reviews f " impact ray facilities. The primary objectives of this proposals for their poten ti al to State h- gh� guide is to provide: . - traffic irn act stud•• (TIS) is needed, 'dance in determining if and when a tr p ❑ guidance acts generated b�' local land � consistenc} and uniformity � in the identification of traffic p g use proposals. fic impacts d e uit r n the identification of m easures to mitigate the traf ❑ consistency an i � 5 generated by land use proposals. . - male informed decisions regardtn`, c officials with the information necessary to Cc�nt�•nt% ❑ lead a�,en y rastructur� (see Appendix A. Minimum tin and proposed transportation inf the existing F P of a Tl S ) ' .e.. initial study. notice �'t• zs early in the planning phase of a project (x ❑ TI S req u i remcn P l aier. or earlier) to elimanate potential delays preparation. uirements. stud%, scenario a qual'tti � and - T I S h' agreeing ree i n g io the assumptions. d ata re q ❑ � n advance of beginning the study, and anak-sis methodologies i 'ect to reduce the time and cast of ' Burin the planning phases of a pro} ❑ earl! coordination g P preparing a TI S . t �l. INHEN A TRAFFIC IMPACT STUDY 1S NEEDED • State highway facilities is based upon measures c� The level of service' (LOS} for operating g res best suited .. �E5 (see A ndix C -2"") describe the n�easu • effLeti� ene�s �M�E51- These M Appendix coons. on- or ill 1 ilities (i.e., freeway sections. signalized interse .or i for anakvnL S ;ate highway fac • • between LOS maintain a target LOS at the transition bet ram s. etc . �. Caltrans endeavors io g altrans P State highway facilities_ however. C and 1.0'S D.. (see Appendix "� -j 3 on g y lead a enq consult always be feasible and recommends that the 1 g acknowl ed Lc�s that this may not al , • i hw3ti fac i l its IS tar et LOS. I f an ex i stx ne State h g . . % %-Ith �:altran� io determine the appropriate g be maintained. 'ate tar et LOS. the existing MOE should operating at less than the appropriate g . ti• etta en b�' = ovrrnment, financed b�• novemmcnt. Dr rC�utrin? Perm" or . "NroieCt' refers to activities directly and . athcr s ro -a1 from covernmunt as defined in secTion _lob_ o f the Public Resourccs Code and Section l���s of the FF California Coda of Regulations. p -. o as the principal respvnsib�lity For ean}-in� opt or approving a roicct ..Lead �`cnc� refers to the public agency that h ,� Environmental Quality Act. and Sectic�n 15367 Defined in Section 21165 of the Public Resources Code. the Cal�fornta of the California Code of Resulations. ��, a acit•- Manual. Special Repon_Q9. Lc vel of service' as defined in the latest ed ition of the Kish a� C p Trans Pc nation Research Board. National Research Council. APR --02 -2002 12 = 48 ? 14 724 99% P . 09 - i generation Thresholds _. men a A- Tr P when a TIS is needed. The following criterion is a starting point in determining project: d State hi hw•ati' facilitNY" 1. Generates over 100 peak hour trips asst ne to a facility - and- . . ' =. d to a State hi�hway tes � to l �D peak hour r? Gen eao h ed State highway facilities are ex eriencing nible dela ; a oactng of fectns (LOS - G or �_ _, ). unstabl e traffic flov►' condiuv a v aciliry — the following ates eaC hour m s assi ed to a State ht hw Gener 're a full TIS or some lesser analysis are examples that may require or • 'lities ex eriencing significant delay: unstable a p�ffecied State highway fact p -- .. flow conditions (LO S ``E � yr forced traff is fln estian • ent is s1pif cantly increas (i.e., Co otential risk for a traffic tncld .� in traffic b - Thep t distance considerations. increase fed collisions. non-standard sigh rela . conflict points. etc.). • act a State high�'aY facttlt}' (i.e-- in local circulation networks that imp geometric design c . 'Change anon- standard highway geome � ' ct access to State highway facility. dire etc. ) . v' a traffic count to as complex as a may be as stmp le as providing _ ors of a T�aLe: A traffic study is determined by the particulars . - e a ra mate level o f st►�y microscopic simulation. The PP P traffic. . v►r � conditions. and the forecasted t eel. the prevailing higa� h p ry � S. ExCeptions Caltrans. and those. preparing the . - require consultation between the lead agent}'. • ci aced �hc�pti�n5 req `ate highway facility can clearly be•ant� p . W cn a ro'ect.s traffic impact to a St TIS. h P develo er. and the Ga }trans district �• d all the parties involved (lead agency. P %vithout a scud. an P a TIS may not be necessary. fi e to negotiate appropriate rnrtlgatlon, y office) are able g C. 'n An Existing Traffic Impzct study C.. Updating aft g . of traffic is significantly different U datin when the amount or character A TIS requires p g updating every two Years. ears. A TIS rna_ from an earlIe r stud'. Generally a TES requires up g �' d not as often In slower developing updating sooner in rapidly developing areas an Tequ�r` trans is strongly recomrnendcd• areas. In these cases- consultation with Cal • OF TRAFFIC IMPACT STUDY III, SCOPE TIS is recommended ct•. Cahrans. and those preparing the . Cun5ultallun between the lead agen w e. At a minimum. the ' o work an the study to establish the appropriate soap b�tore rc`ntmencYnr 'f IS should include the fallowing: A. Boundaries of the Traffic Impact Stud' • e Criteria to Section 11 should be • facilities impacted 1n accordance with th All State highway fat P • intersections With State acts to local streets and roads can impact inters studied. Traffic Imp anal ;sis of adjacent local ... In these cases. the TIS should include an �Th•�a�� faclities. hi _ tersection [i .e.. driveways. Intersections. an facilities. upstream and downstream. Q e. to interchanges 1 With the State highwa}'- ft- counts. rr aring siSna1 warrants. yr a focusrd TIS. roc. A "fcsser ans lysis m3\ include obtainintr traffic P P APR-02-2002 12:49 ?14 ?24 P.10 B. Traffic Anal }'sis Scenarios - .. �; the - .. . dates and amendments as well as ested In the effects of general plan up Caltrans is inter s_ conditional use permits. Sub- ' project entitlements (i.e.. site plan effects of specific P J impact a State hihway facility . The f' nin etc. that have the potential to imps divisions. rezoning. } dictate the scenarios de of the impacts of a project will normally tnrnplexity or magnitude P lead a enc�•. Caltrar�s. and those ro eci. Consultation between the g - . necessary to analyze the p 1 e scenarios for the analysis. • is recommended to determine the appraprtat preparing the T15 when a ro riate: The follow' ing scenarios should be addressed to the TIS h PP P ' in sits ht. the following scenarios general plan amendment or update is being g 1. When onl�r a gen p are required: - a sis of volumes an LOS analysis a) Existing Co ndit�ons - Ourrent year traffic of d P eak hour effected State highway facilities. - d assignment • elect Link= Analti•sis -Trip generation an g ti} Pro osed Pro ect Oniv with S for build -out of general plan. anal��sis. include • assi nrnent and peal hour LOS c� General Plan Build -out Only' - Trip g d other ending genera current land uses an er P l plan amendments. � a s� nment and peak hour LOS Plan Build -out Plus Pro used Pro ect - Trip s g . d } General P1 •nt, general plan amendments. ' dude proposed project and other pendi V g P analysis. In P P � .. when a general tan amend' ment as not proposed *and a ro osed project is seeking z n e . Specific entitlements (i.e.. site plans. conditional use permits, sub - divis. on. rezon . etc. 1. the following scenarios must be analyzed in the TIS. .. and peak hour LOS anal}•si5 ��� , Conditions - Current year traffic volumes p a3 E�istint_ effected State highway facilities. • - distribution. and assignment in the year the b} Proposed Project Only - Trap generation. dstrib rol ect is anticipated to complete construction. ' ions Plus Other Approved and Pend rig uniulat've Conditions [Existing Condit tir is in cl C and peak hour LOS anal s P rot ec is Without Proposed Project) - Trip assignment P the roj ect is anticipated 10 complete construction. th e Near P J - � fans Plus Other .. Pius Pro osed Pro�ect (Existing Condit d ] �urnulatiti�e Conditions assignment and peal Projects Plus Proposed Project) - Trap g Approved and Pending J construction. e year the ro ect is anticipated to complete hour LOS analysts in Ih y P J - nt and • • Conditions Plus Proposed Phases (Intefirri Yearsl - Trip assn gnrne el Cumu�atit a Conditions P - to corn Iett ldmw� . e ears the project phases are anticipated p peak hour LOS analysis Yn the y P J P construction. • an is not consistent with the land where the c trculation element of the general plan . . In cases her outdated and not re resentative of cur-rem or future . use elerncnt or the general plan is outd P with ecdsted conditions. all scenarios from Sections 111. B. 1. and 2. should be utilized t or , � the cxce P tion of duplicating of item _.a. where the rojcct+S trips are distributed and aSSi�nrd "�etcct tiny:" anaMis represents a project only traff =model tin. P way network. �► i way neovork. This procedure isolates the specific impact on the State htch ;�lnn_ the , APR -02 -2002 12: 49 714 724 I""1r tT.��.iG+"GCJCiG l.a J. G J s.08 1 r . Wi . + •r n ti..►i w.+• a I s . r a %'01 IV. TRAFFIC DATA , and those reparing the tween the lead agency. Caltrans P an • fieldwork. consultation be cess for the stud }•. - Pri °1 to � us on the data and assumptions ne �' � �`�� i� recommended to reach consensus , . elements are a starting paint in that consideration. The follow ine elern A. Trip generation - GENERATION t'on Engineers" (IT-E) T RIP �E est edition of the Institute of Transpona i s are also The tat - forecasts. Local trip generation rate report should d be used far trip generation f • ti• idation is ro%tided to support them- acceptable table if appropriate al P ort P a i smite d number Q f srudi es to supp • Generation Rates -- when the land use has . 1. T'ri C�ener eternninativn (JZ?) is below• the trip generation rates yr when the � veffi c lent of I3 a trans and those preparing the TIS is cvnsulta lion between the lead agency. Cal trans r retail oriented deg elopment. I _ ass.bv trips are only considered fo - ?. Pass -bv T s P P acceptance by Caltra.ns. The than 1 D % requires consultation and P - Reductions greater � ' in the TIS. • � dine a l3 °Io reduction should be discussed justification for excee ;��o re uires consultation and Captured trip reductions greater than q captured ��ri s P P �� a 50/o reduction should be trans. The ustificattvn far exceeding acceptance b} Cal J discussed in the TIS. - ' on between the lead agency Demand Mar,a�ement DM) — t- �n5ultati - 4. Trans ortatiori Dern for TDM strategies. and C altrans is essential before applying trip reduction • arc cons }dered when add ac ent State :Reasonable reductions to trip generation rates r the land use. NOTE _ �� ADT to support reductions fo ;� tip-- v volumes, are sufficient tat least 5D I h�lh a. I3. Traffic founts ins and-those • lotion between the lead agency. C altr Priat� to field traffic counts. consul .location, signal nded to determine the level of detail e.g. preparing the TIS is recommended ' ed at each traffic count site. All State travel l s eeds. turning movements, etc.) required n rules for ttntir�L- P he TIS should be considered. �ommo ' � .�• �• factliiies within the boundaries of t high a- 'led to: 4 �•chicu }ar traffic include but are not time counting s. wednesdati•5. or Thursdays during Vehicle ' should be conducted on Tuesday I . counts sy favorable conditions. t holiday and conducted in weather �e �S not containing a _. Vehi. rl c taunts should be conducted dun. ng the a pp ro ri ate eak hours (see peak- hour discussion below). - ��� ere ' riff c should also be considered h Seasonal and weekend Variations in t t' n.al routes, tourist attractions. harvest Season. etc. . appropriate {i.e.. recrca io C. Pcal; Hours w the lead a encv. Caltrans and those • unnecessai� analysis. consultation bet wee g . 1 c� �.lin�in�te . • � ear1�► 1 aruii n stages a f a prof ect, iri genera . ' the TIS is recommended during the P • g Other preparing rn, peak hour analyses. include lode a mornin - (a.m.) and an evening tp• � P the TIS Should jn g .may also be fequired to •~ 0 a.m. to 3 :0,0 p.m.. weekend. holidays. etc.) . Peak hours (e.g.. l 1.� . p e of the traffic impacts generated b� a project. determine the significant P .. stops WN%,ccn an on n in and a primary tr�r dr'.;lIM On t a.c.. home to a ork. homL It �� =a�i_�,, trspc air made s= +nttrmrdtatc 5 op _ ;hurrIM. 011 t. _. � t dri %c�%-ay� of a rc j,cc s boundzrv, �� ithin o mired -u% do ►Clopmcnt _C;)rtuTcd I rsr- arc mrc that do not enter or �c� r t :C _ r . 4 ?la ?24 99% P.12 APR -02 -2002 12.50 ortation Modeling; D. Trs.'e3 Forecasting � Trans P - -- ed -- reflect the most current land use and plane r regional traftrc model should refl •Id_ The local o g - in is secured }. When a general plan but �� a nis (i.e.. where 'programmtng or fund g tmpra e•rn year to build -out should be used. If a u available. the closest forecast model out model is not a and current trends can be used to el -is not available. historical growth rates a traffic mod tribe an changes made in the -- traffic volumes. The TIS should clearly des y project future traff P f . model to accommodate the analysis o a P ro p osed project V. TRAFFIC IMPACT ANALYSIS METHODOLoGIES ' i li types indicated beZ ova' are used byi • fit analysis rnethadologres far the fat ty YP . Tvp *cally. the traf . faze hi h,,�ati. has saturated • ed without riot consultation. when a 5 g Caltrans and will be accept P analysis. Other analysis flows. the use of a micro- simulation model is encouraged for the an ' between the Lead agtnc }P. Caltrans and thane be accepted- however. consultation b methods may P information ne�essary for the anaNsts. is recommended to agree on the pTepartng the TIS - • al HCM *Cha ter �. operational analy's1s . ections -- Ht hway Capaclt• Manual t } P .Emdnft A. Freewa S g w - gn Manual (HDNI) Chapter -oo B. weavinz Areas Cale ans Hi hwav Desis or C altr an s HDM C . 'Ramps and Ram Junctions - HCM *Cha ter 5. operational analy5i �� and ���. Caltrans Ramp Metering Guidelines most recent edition) Chapters 4 rban av s - HCM * Chapter 7. operate o nal anal ysi s D. Muhl-Lane Rural and t w � analysis _ ' � wa s —HCM Chapter 8. operational anal E. 7« ❑ lane H� h t � 5oftuare . operational F. S2i naltzed In tersections�' -- HCM* Chapter 9. High \h Capaci y F FIB * * . Sy�nchro* * . see footnote S . analysis. TR.� - analysis. Caltrans Traffic G. Intersections -- HCM* Chapter 10. operational C,. L�nst na} tit d . nal warrants if a signal is being considered Manual for 51a_ . a ac itx' — HCM :* Chapter 12. operational anal. su is H. Zransst C p I. Pedesinans - HCM* Chapter 13 * - lanai 'S1s w'hCn a pl }�ing Chapter 9 and 10 J. ic��cles —HCM Chapters 14. use operational y P HCM methods to bicycle analysis anual (stop signs. traffic signals. free%k 0' R. Caltrans CritcriafWarranits Caltrans Tr affic M • conventional highway fighting, school crossings) huhiini, L. Channelzzatlnn — Caltrans guidelines for Reconstruction of Intersections. August 198 ichiro Fukutorne Manual. Special Re art 209. Transportation * most cur-rent edition of the Highway Capacity M p Rep on mo r Rrsc.arch Board. National Research Council, should be used. officially - advocate the use of any special software. However. * * ;� DTF . Caltrans does not o local • advocated in most but not all cases. The Caltrans consisten<<- «�1th the HCM is � `are or utilize the software mentioned above. If different soft d�- �•�• }opn�cnt rep le�� units uttl � �• Caltrans - IS then consultation between the lead aecnc, . anal• ttcal iechnl��es are used for the ?' use and those preparing the TIS i s recommend ed. Results that are sientficantiy different than th P above should be challen =ed. produced %vith the analytical techniques �• Manual "do not ex licitly address apera� ions ai' closely spaced s +�n�liZtd S Thy prvctciure try the H;ahw °av Capacir_ M P . unique characteriSties mus{ be considered. ineludint: spill -back poicnt�a tntcr5cctiQns. Under such conditions. several � t of downstream ueues on upstream Saturation fron) •the dn���n5tream intersection tv ithe upstream intersection. effects q ei• spaced n dispersion or compression between xn ;crsectsans. an example o� such cloy p fln� rite, and unusual platoo P A a e interactions betv��rrn closer Spaced rniersecz�ons operations i 5 51 anal iced ramp terminals at urban i nterchan�CS. Queue \ ' �. Manual. 5 ec ial procedures 3n" the HCM. Scope of Manua }. page } -?. H t�h►� av Capac�T. P ma serlousl\ dision th e p Repon 209. updated December 1997. 5 APR --02 -2002 12:50 714 724 P. 13 V I. MITIGATION MEASURES • Commission. � 957.48 U.S. e •us [Nollan v. California Coastal , . Tl S should roe i de the n x • Q wav facilities. The The F the traff a impacts to state hibh . - S.Ct. ; l 4 between a project and . ? U. S. N ? $_� l�8 �j v iry of Tigard. 199 u h rfl ortionalit� �Dalan . � TI S should also establish the rough p .P acts . pne method for - w •tz ation measures and the traffic imp (114 S. Ct. ? � 49 }� bets een the mz g es onsibilit }r for a . • or a project ct proponent's equitable r F bl ishin the rough proporti analzt} F J agency. Caltrans establishing Consultation between the lead ' im acts is provided in Appendix � measures and project's s p p mended to reach consensus an the mitigation rn and those preparing the TIS is recommended who will be responsible. if a 10 ` This determines d in the traffic impact analysis. m Niiti�atian measures must be included Eliminating or • educed to a level of insignificance g rD' cct`s impacts can be eliminated 4r r and the rational p 1 'Impacts P ace is the standard pursuant to CEQA to a level, of insignificance ' administering the C�QA reduGtn lead a enc%- is responsible for adminis �� nmental Pol�c� Act (NEPA). The - nt rn osal or Irn iro rite- for a raring a local developme proposal v� process and has the principal autho AP r' the Tl S for re��e p s a responsible agency. is responsible or reviewing Land use chance. C altrans, a P - The authont , vested in the lead - pertain to State highti�'a�. faetlzties. } errors and omissions that p � over ether authorities in la��- . A process does not tale precedency. o a �enc�� to administer the CEO p l . • hi hw�' ri ht -of -way an encroachment • ion measures require work in the State g I f the ni � t� fat F• a subject to Caltrans standards and • n will be required. This work � ill also b ] `. perm It from � alts s q t, raps and those preparin! the Tl S earl, .._ Consultation bet«-een the lead a�enc` _Galt Spec z t ti cat�nns. � ons . c e re�'�ew' of local de�'el npment is strop l recommended the in the • ded to expedit planning process � • � both the local agent! C ESA rd' icl` d to reduce conflicts and mzsunderstandtngs in proposal y 3n . process as well as the Caltrans encroachment permit proG S. r L! APR -02 -2002 12 =50 714 724 P.14 nr rt- rJC�- c��c.�c �.� • -+� j./1 1 i L.i1 1/ \i N 1..0+ V+ t l f l l i Vi • A PPENDIX "A" MINIMUM CONTENTS OF-A TRAFFIC,IMPAC STUDY' 714 724 P.15 MINIMUM CONTENTS 01F TRAFFIC IMPACT STUD X P EPORT- EXECUTIVE SUMMARY 11. TABLE OF CONTENTS A. List of Figures (Maps) B. List of Tables Iii. INTRODUCTION A. Description of the proposed project B. Location of project a l access to State highways (site plan. map) C. Site plan including al D. Circulation network including all access to State highways (vicinity ma P i E. Land use and zoning Lion pro posed dates of project (phaswe) cornple F . Phasing plan including p p G. Project Sponsor and contact person(s) H. References to other traffic impact studies IV. TRAFFIC ANALYSIS A. Ciearf \ stated assumptions fac•ilit� e traffic volumes f includinn turning movements). B. �.xrst ;n� and projected � sin aid mulzi- ( including storage lengths . and traffic controls (including signal pha g si n nal roeressi on where appropriate) (figure) C P %. C. I' ro. ecz trip generation including references (table) � � (figure) ct generated trip distribution and�assignment [ € .) D. project � p cumulative conditrflns. and full hltl I �� %)I E. LDS and warrant analyses - existing conditions, cum ueneral plan conditions with and without project C�NC % • . C Lt iSIONS AND RECOMMENDATIONS quantities of tm acted facilities with and without mitt�tic�j� A. LDS and appropriate NIgE q P measurc5 ' i phasing lan including dates of proposed mitigation measures B. Miti_at on p C. Define responsibilities for.Implementing mitigation measures estimates for rniix ation measures and f inancino plan D. . t nit es g \'I. APPENDICES AP . Description of how traffic data was collected B. Disc P ri lion of methodologies and assumptions used in analyses C. Nk crksheets used in analyses (i.e.. signal warrant. LDS. traff c count information. etc.) APP -02 -2002 12 =51 714 724 P. 16 APPENDIX "B" METHODOLOGY FOR CALCULATING EQUITABLE i MITIGATION MEASURES APR -02 -2002 12 :51 714 724 P.17 w MITIGATION l►'iEAS1.tRES �iEwr'HG� FAR G.kLGU LATIN G E IIITABLE establish a le e-a] standard for i s neither intended as. nor does it a rv1-'de: The methodology' below .. ' is traffic impact. the intent is to p determining equitable respo nsibilit y and cost of a projec P dress traffic mitigation equitably. � . A starting point for early discussions to ad � . equitable share for rniiigating traffic impacts. 2. A means for calculating the equ Ti aid. I9�4, S 1? U.S. 374 AN it}. [Dolan v. City of g A means for estabtishing rough proportional ( l 14 S. Ct. 237fl9 )J. The formulas should be used when: - • - eir cumulative effeC15 mmediately warrant mitigat ion. but th A ro eft has impacts that do not . P J - • - d will re uire mitigating in the future. are significant an q assumed res onsibilh for • 'ate impact and the lead agenc�� has P A ro ect has an immedl p P J addressing operational Improvements . a project proponent v�•ill be recei��Ytig • t intended for circumstances where p J p P NOTE: This formula �s no - .. In these cases. fie. .. mid-block ock ac c�•,• enef�t from the identified mitigation measures . - toward a substantial b should take full respons3bilitti' to ' alization to a shopping centers the protect and sign F s rovidin the necessary infrastructure. EQUITABLE SHARE RE SPONSIBILiTY: Equation NOTE: � • T � < Ts, see explanation for Te below. 7 F' - Z'„ —Ic 1Vhere : . share for the proposed project's traffic impact. - , . t� i I i t • n ' = The equitable a peak hour o f adjacent State h' L1 hwJ I . . — 1 e trips genera by the prof ect during the P The ~chic p g vehicles per hour_ vph. . hwa facility at the time ( )f encral pLin seed traffic volume on an Impacted State highway � Tp = The foreca. . rth�st future model date feasible). 1•ph. wild -out (e. .. 20 year model or the fu ro\ -cd roicct- that b g impacted State highway facilit. plus other app r = The traffic volume existing on the impact g y will generate traffic as that h et to be constructed opened. %,ph. EQUITABLE COST: Equation &2 C = P (C-0 Where: - - �, 'nor the ro os ed p rvi ect. (S) . ( Rounded to nearr-st one e e unable cost of traffic mite "atio f P P t' Th q thousand dol tars ) � -- bit share for the project being considered. .. thL, Tie equrta ltjoate the forecasted traffic demand on • " - he total cost estimate for improvements neces, to m �- - r l lan build -out. (S). im acted State highway facilit}• in question at gen era p p NOTES le cost has been established on a per trip e uitable share responsibility and equitab . . l . ❑nee the Q t fate hi r�hwa�- faetl it!� until the hosts. the5r v alues can be utilized for al] projects on tha S eneral lan build -out model is revised. lb r recast`d � P g' these equations ould be converted to passenger car equivalent s before utilizin ,2. Truck traffic sh � care uivalents}. e Hi hv.•ati Ca acit)' Manual for converting to passen =er q see th g P APR -02 -2002 12 =51 714 724 P.18 APPENDIX "C" MEASURES OF EFFECTIVENESS BY FACILITY TYPE 71 PPR --02 -2002 12 * 51 ?2 P .19 59� � �'ESS BY FACILITY �'�'PE MEASURES OF E�FE�TI E . ice definitions located in table 1-2- asures of effectiveness for level of sere ,� Me Manual. Special Ripon _09. ter 1. of the 1 997 Hi ghw'a)' Capacity Man p . chap council. Transp oration Research Board. National Research s APR -02 -2002 12: 52 714 724 n w P.20 rim_V4C- _aWUZ- �.� - .1c- -. - • - - - - Transition between los "C" and LOS "D" Criteria (Reference 1997 High-*N-a )' capacity Manual) Basic Freeway Sections .. .. .I Dvned line represents the transition between LOS "C" and LOS "D'' 3 APR -02-2002 12:52 714 724 P-21 Maxim um Minimum Maximum Serv1Ce Maximum r Volut�ne�Capac�ty Density Seed Ftow Rate P LDS �pctmitln Ratio m h) j2c2lPJI Free -Flow Speed = 70 mph A 70. D ?DD 0.29 B 15.0 70.0 1124 0.47 24.4 68.0 1 632 0.58 D 32.E 64.E 2048 0.85 � 45.D 53 v 2400 1.00 F gar Var vat vat Weaving Areas MAXIMUM DENSITY rJrnilln LOS Freeway Weaving Multi -tang and c - D Area Wea nq Ar8a5 A E. 10 12 B 20 24 D 35 35 E �� 43 c= 40 • F � 43 >40 Ramp - Freeway ,function Areas of Influence Maximum Density Mini'murn Speed LDS Primary Measurel (Secondary Measure) (pc /mitln) MPH) A 10 58 B 20 5s 5 .� D 35 45 E > 35 42 F a a Demand flows exceed limits of table 5 -1. , Signalized Intersections .. .. .I Dvned line represents the transition between LOS "C" and LOS "D'' 3 APR -02-2002 12:52 714 724 P-21 4 _)G yr r w . V1 I »r111 41.x+ +..01 % : rn I a 1..01 t - ATTACHMENT CALTRANS DISTRICT 12 WATER POLLUTION CONTROL PROVISIONS drainin into Caltrans Right of Way must fully conform to the current discharge Any runoff g � . ents of the Regional Water Quality Control Board (RWQCB) to avoid impacting water requtrem gx ermittee shall full conform to the requirements of the Caltrans Statewide National Pollutant quality. P y q limination System (NPDES) Storm Water Permit, Order No. 99- of.DWQ, NPDES No. Discharge E y CASO40003 y . adopted b the State Water Resources Control Board (SWRCB) on July 15, 1999, to , P MPs specified in the Caltrans Storm Water Management Plan (SWMP). When addition to th e B he ermittee will also conform to the requirements of the General NPDES Permit far applicable, t P � Construction ction Activities, Order No. 99- 08 -DWQ, NPDES No. CAS004002, and any subsequent General P ermit in effect at the time of issuance of this Encroachment Permit. These permits regulate storm water and non -storm water discharges associated with year -round construction activities. e note that project activities should a extra attention to storm water pollution control during the Pleas p J 5c pay " r Season"' (October 1St —Ida 1 and follow the Water Pollution Control BMPs to minimize Ra ny 5 Y ) impact to g receivin waters. Measures must be incorporated to contain all vehicle loads and avoid any trackin g of materials, which may fall or blow onto Caltrans right of Way. For all Projects resulting in 2 hectares 5 acres) or more of soil disturbance or otherwise subject to the F p � g � NPDES P �' ro am the Contractor will develop, implement, and maintain a Storm Water Pollution Prevention Plan (SWPPP) conformin to the r uirements of the Caltrans Specification Section 7- Pr g � . 1.01 G "Water Pollution Control ", Caltrans Statewide NPDES Permit, the General NPDES Permit far Construction Activities, and the Caltrans Storm Water Quality Handbooks "Storm Water Pollution Prevention Plan (SWPPP) and Water Pollution Control Program (WPCP) Preparation Manual ", and P " C g "Construction Site Best Management Practices (BMPs) Manual" effective November 2000, and subsequent revisions. In addition, the SWPPP must conform to the requirements of the SWRCB Resolution No. 2001 -046, the Sampling and Analytical Procedures (SAP) Plan. For all P resulting ects resultin in less than 2 hectares (5 acres) of soil disturbance or not otherwise subj cct to the requirements of the NPDES program, the Contractor will develop, implement, and maintain a Water Pollution Control Program (WPCP).confonning to the requirements of Caltrans Specifications Section 7 -1 -.01 G, ``Water Pollution Control ", and the Caltrans Storm Water Quality Handbooks "Storm Water Pollution Prevention Plan (SWPPP) and Water Pollution Control Program (WPCP) Preparation Manual ", and "Construction Site Best Management Practices (BMPs) Manual" effective November 2000, and subsequent revisions. Copies of the Permits and the Construction Contractor's wide and Specifications of the Caltrans P Storm Water Quality Handbook may be obtained from the Departrnent of Transportation, Material Operations Branch, Publication Distribution Unit, 1900 Royal Oaks Drive, Sacramento, California DP 95815, Telephone: (916) 445 -3520. Copies of the Permits and Handbook are also available for review at Caltrans District 12, 3347 Michelson Drive, Suite 100, Irvine, California 92612, Telephone: (949) 724 - 2250.' Electronic copies can be found at hq-://www.dot.ca.pov/hg./ronstruc/stormwatCT.htrnl Revised 10/23/01 APR -02 -2002 122=53 714 724 P.22 i TOTAL P.23 APR -02-1-2002 12 53 714 724 P.23 r pity of Huntington Beach 2000 MAIN STREET CALIFORNIA 92648 DEPARTMENT OF PLANNING Phone 535 -5271 Fax 374 -1 540 374 -1 548 April 3, 2002 CrrY 0r- SEAL BEACH APR - 8 2002 DEFA,R ".' `'NT OF DEVELORi %�i&Ev i � ;RVICES Mr. Mac Cummins City of Sea] Beach 211 Eighth St. � Seal Beach, CA 90740 Subject: Boeing Headquarters Site Notice of Preparation Dear Mr. Cummins: The City of Huntington Beach has reviewed the Notice of Preparation and Initial Study for the proposed Boeing Headquarters Site and concurs with the conclusion to prepare an environmental impact report (EIR ). The EIR should clearly indicate the net increase in building square footage over what is existing and fully analyze potential traffic impacts to the surrounding area. The City of Huntington Beach looks forward to reviewing the draft EIR. Thank you for the opportunity to comment on the Notice of Preparation. Sincerely, G-� Mary Beth Broeren Principal Planner - STATE OF CALUnRNIA - THE RESOURCES DIPARTMENT of FISH AND GAME South Coast Region 4949 Viewridge Avenue Sam Diego, California 92123 (858 )457 -4201 (858)467 -4235 FAX Mac Cummins City of Seal Beach 2118" Street Seal Beach, CA 90740 MY OF SEAL BEACH :•. APR 8 2001 QEF; R T M ENT OF DEVELOPMENT SEMACES April 3, 2002 r Comments on the Notice of Preparation of a Draft Environmental Impact Report for the Boeing Headquarters Site Draft Environmental Impact Report (SCH# 2002031015) Dear Mr. G ' s: The Department ofFish and Game (Department) appreciates this opportunity to comment on above-referenced project, relative to impacts to biological resources. In a letter dated March 15, the ab P � Department provided comments on a Mitigated Negative Declaration � for the Pacific 2001, the I]ep p tewa Business Center, located on the Boeing Headquarters property. At that time, the Department requested a delineation ofwetland resources pursuant to the U. S. Fish and wildlife Depart eq Service wetland adopted and definition ado b the Department . The NOP includes information not previously y De P supplied in the Pacific Gateway MND, including information regarding the site's wetland resources and occurrences oftwo special-status plant species. The Department appreciates the City's willingness to obtain the requested information, and provide updated biological baseline information and analysis in the Draft Environmental Impact Report. To enable Department staffto adequately review and comment on the proposed proj ect, we reco mmend the following infom ation be included in the Draft Environmental Impact Report (DEIR), as applicable: A comp lete assessment ofthe flora and fauna within and adjacent to the project area, with 1. p P articular emphasis upon identifying endangered, threatened, and locally unique species and - sensitive habitats. a. A thorough assessment of rare plants and rare natural communities, following the Department's ar ' Ma y 1984 Guidelines (revised May 2000) for Assessing Impacts toRare Plants and Rare Natural Communities (Attachment 1). Because the site supports plant speaes associated with coastal wetlands, we recommend a detailed discussion ofthe w w w re- disturbance status ofthe site-. If available, historic aerial photographs may provide useful information regarding the site's biological resources and land use history. r Mr. Mac Cummins April 3, 2002 Page 2 b. A complete assessment ofsensitive fish, wildlife, reptile, and amphibian species. Seasonal variations in use ofthe project area should also be addressed. Focused species-specific surveys, conducted at the appropriate time ofyear and tune of day when the sensitive species are active or otherwise identifiable, are required. Acceptable tables species-specific survey procedures should be developed in consultation with the Department and the U. S. Fish and Wildlife Service. C. Rare, threatened, and endangered species to be addressed should include all those which meet the California Environmental Quality Act (CEQA) definition (see CEQA Guidelines, § 15380). d. The Department's California Natural Diversity DataBase in Sacramento should be contacted at ( 916) 327 -5960 to obtain curreht information on any previously reported sensitive species and habitat, including Signif cant Natural Areas identified under Chapter 12 ofthe Fish and game Code. 2. Athorough discussion ofdirect, indirect, and cumulative impacts expected to adversely affect biological resources, with specific measures to offset such impacts, should be included. a. CEQA Guidelines, § 15125(a), direct that knowledge ofthe regional setting is critical to an assessment of environmental impacts and that special emphasis should be placed on resources that are rare oruniqueto the region. b. ProJ ' ect * acts should be analyzed relative to their effects on off` -site habitats. P Specifically, ecif call , this should include nearby public lands, open space, adjacent natural habitats, riparian ecosystems, and any designated and/or proposedNatural Communities Conservation Planning (NCCP) reserve lands. Impacts to and maintenance of wildlife corridor /movement areas, including access to undisturbed habitat in adjacent areas, should be fully evaluated and provided. C. A discussion of impacts associated with increased lighting, noise, human activity, changes in drainage patterns, changes u� water volume, velocity, and quality, sail g g P . erosion, and /or sedimentation in streams and water courses on or near the project site with mitigation measures proposed to alleviate such impacts should be included. d. The zonin g of areas for development projects or other uses that are nearby or adjacent to natural areas may inadvertently contribute to wildlife -human interactions. A discussion of possible conflicts and mitigation measures to reduce these conflicts should be included in the environmental document. Mr. Mac Cummins April 3, 2002 Page 3 e. A cumulative effects analysis should be developed as described under CEQA Guidelines, § 15130. General and specific plans, as well as past, present, and anticipated future projects, should be analyzed relative to their impacts on similar plant communities and wildlife habitats. 3. A range of alternatives should be analyzed to ensure that alternatives to the proposed roj ect are fully considered and evaluated. A range of alternatives which avoid or otherwise m�nam*ze impacts to sensitive biological resources should be included. Specific alternative locations should also be evaluated in areas with .lover resource sensitivity where appropriate. a. The Department considers Rare Natural Communities as threatened habitats having both regional and local significances Thus, these communities should be fully avoided and otherwise protected from project - related impacts (Attachment 2). 4. N itigation measures for adverse project - related 'impacts to sensitive plants, animals, and habitats should be discussed. Mitigation measures should emphasize avoidance and reduction of project impacts. For unavoidable impacts, on -site habitat restoration or enhancement. should be discussed in detail. If on -site mitigation is not feasible, off -site mitigation through habitat creation and/or acquisition and preservation in perpetuity should be addressed. _ . a. The Department generally does not support the use of relocation, salvage, and/or transplantation as mitigation for impacts to rare, threatened, or endangered species. Studies have shown that these efforts are experimental in nature and largely unsuccessful. b. Areas reserved as mitigation for project impacts should be protected from future direct and indirect impacts. Potential issues to be considered include limitation of access, conservation easements, monitoring and management programs, control of illegal dumping, water pollution, and fire. C. Plans for restoration and revegetation should be prepared by persons with expertise in southern Califon7ua ecosystems and native plant revegetation techniques. Each plan should include, at a minimum: (a) the location of the mitigation site; (b) the plant species to be used, container sizes, and seeding rates; . (c) a schematic depicting the mitigation area; (d) planting schedule; (e) a J description of the irri ation methodology; measures to control exotic vegetation P g gy on site; (g) specific success criteria; (h) a detailed monitoring program; (i) Mr. Mac Cummins April 3, 2002 Page 4 contingency measures should the success criteria not be met; and 0} identification of the party responsible for meeting the success criteria and providing for conservation of the mitigation site in perpetuity. 5. A California Endangered Species Act (CESA} Permit must be obtained, if the project has the P otential to result in. "take" of species of plants or animals listed under CESA, either during construction or over the life of the project. CESA Permit s are issued to conserves protect, enhance, and restore State -listed threatened or endangered species and their habitats. Early consultation is encouraged, as significant modification to a project and mitigation measures may be required in order to obtain a CESA Permit. Revisions to the Fish and Game Code, effective January 1998, may require that the Department issue a separate CEQA document for the issuance of a 2081 permit unless the project CEQA document addresses ail project impacts to listed species and specifies a mitigation monitoring and reporting program that will meet the requirements of a 208 1 permit. For these reasons, the following information is requested: a. Biological mitigation monitoring and reporting proposals should be of sufficient detail and resolution to satisfy the requirements for a CESA Permit. b. A Department-approved Miti ation Agreement and Mitigation. Plan are required g for plants listed as rare under the Native Plant Protection Act. 6. The Department has responsibility for wetland and riparian habitats. It is the policy of the Department to strongly discourage development in wetlands or conversion of wetlands to i uplands. We oppose any development or conversion which would result in a reduction of P . wetland acreage or wetland habitat values, unless, at a muu. murn, project mitigation assures there will be "no net loss" of either wetland habitat values or acreage. Development and conversion include but are not limited to conversion to subsurface drains, placement of fail or building of structures within the wetland, and channelization or removal of materials from the streambed. All wetlands and watercourses, whether intermittent -or perennial, should be retained and provided with substantial setbacks which P P reserve the riparian and aquatic values and maintain their value to on -site and off -site wildlife populations. a. If the site has the potential to support aquatic, riparian, or wetland habitat, a jurisdictional. delineation of lakes, streams., and associated riparian habitats should be included *in the DES, including a wetland delineation pursuant to the U. S. Fish and w'ddlife Service wetland def ition adopted by the Department'. Please note Coward4 Lewis M., et al. 1979. Classification of wetlands and Dee water Habitats of the United States. U.S. Department of the Interior, Fish and Wildlife Service. Nor. Mac Cummins April 3, 2002 Page S that some wetland and riparian habitats subject to the Department" s authority may extend beyond the jurisdictional limits of the U.S. Army Corps of Engineers. b. The project will require a Lake or Streambed Alteration Agreement, pursuant to Section 16 00 of seq. of the Fish and game Code, with the applicant prior to the applicant's commencement of any activity that will substantially divert or obstruct the natural flow or substantially change the bed., channel, or bank (which may include associated riparian resources) of a river, stream or lake, or use material from a streambed. The Department's issuance of a Lake or Stre=W Alteration Agreement for a project that is subject to CEQA will require CEQA compliance actions by the Department as a responsible agency. The Department as a responsible agency under CEQA, may consider the local jurisdiction's (lead agency) Negative Declaration or Environmental impact Report for the project. To e additional requirements by the Department pursuant to Section 1600 et seq. and/or under CEQA, the document should fully identify the potential impacts to the lake, stream or riparian resources and provide adequate avoidance, mitigation, monitoring and reporting commitments for issuance of the agreement. The Department holds regularly scheduled pre - project planning/early consultation meetings. To make an appointment, please call our office at (858) 636 -3160. Thank you for this opportunity to comment. Questions regarding this letter and further coordination on these issues should be directed to Brad Henderson at (310) 214 -9950. Sincerely, 2 Donald R. Chadwick Habitat Conservation Supervisor Attachments cc: Department of Fish and Game 2 A Streambed Alteration Agreement form may be obtained by writing to: Department of Fish and Game, 4949 Viewridge Avenue, San Diego, CA 92123, by calling (855) 636-3160,, or by acres sing the Department's web site at www . dfcr . ca . e ov/ l 600 . Mr. Mae Cummins April 3, 2002 Page 6 File Laura Crum San Diego U.S. Army Corps of Engineers Erik Larson Los Angeles California Coastal Commission Carl S chwing Long Beach State Clearinghouse Sacramento Proposed Projects on.Rare,'I'hreatened, and . Guidelines for Assessing the Effects -of d a ge�pta;,� AridNatnral Communities •`- -- -- . - - -_ stsbe of anlifomia ?fiE RESOURCES AGENCY • Departmcat of Fish and Gamc Dooember 9, 1983 Revised May 81 2000 - . who and review enviran=nental rr�a mdations are intended to help those pr re The following reco - who should be considered qualified to conduct eterm:me when a botanical survey' needed, documents d ghat information should be contained* the how field surveys should be conducted, and .. such surveys, d a rates not accept the results of surveys that are report. The Department may recommend that Ica ge survey t�epo eP not conducted according to these guidelines. - e m cutai Cffect.s of proposed pm] acts on all '� at�C conducted in older to d e � • �' communities. e�, t}�=teaed, and endang red p�s are not threatened, and plants and plant eon oral a cies but should include �' -es which have been lid by �� and fed- g� ucoemdly ' to those spoci be threatened, andlor ca under the 'cs that, based on all available data, can be shown to tare, any span following definitions. • when the of its and reproduction are - Subspecies, or vatr�ty of punt is cadan,gcr+ed F A species, - loss of habitat, change in habitat, over- �plorta►tion, • - - from one or snore Causes, i ndud m jeopardy , . - when it*is I�CIy to become in the �4 A plant is �tenod _ preci�attonx, - �, �t � "rare "• whcu; although not presently is future �a the of P - n out us. C -� or variety is found m such cxfincdov� range #hat h racy be t Of limited d��utzon -These communities my unities arc those oon�.uaities that are o highly - ' forma ICI aural a1e M=g Gomm 'es. ne most cutrcnt version of the Cali threatened, of cn or way not contain. tare, w . unities may be used - as a guide to the names and tabase`s List of California T l Natural Comm Y Diversity Da status of communities. - . e if, or to the extent that, tare, threatened, or It is appropriate to conduct a botanical field survey to . �. FP ry ect ��= Cadangered plants will be affected by a proposed F ] threatened, or Gadangemd plants or habitats occur a vegetation occurs on the site, it is vnk nOwu r or a. lei � the t►Gatial for diroct or xndiroct effects on vegetation; on the site, and the pro] � p° - - but adequate information for impact it boon identified on the project site, �a b. Ram plants have h stm'ica y _ ent is 1a�cking- . the following qualifications: 3, $cta�nical CO"At"ts should . - =ce conducting flor'�ic field surveys; a. Fri 01Mt 'ccologY: - b. Knowiedgc of plant taxoaoaYy and d species, - the rants of �e � including rare, thrr�t��, � and c. Famdia 0 with F - totes related to pests and plant collecfng; t with the appropriate state and federal sta - d cmniaunitics. e Familiarity f develo mcnt on native plant species an c. flacpcncace with analyzing impacts o P . ' that s should be conducted in a manner that will locate any tare, threatrar�d., or cudangerad sp�i� . �. Field survey pint should be: - �cat,r Spc�caily lane, thrcat�ed, sway be p i . - teued, or an Species are both ` the field at the proper time of year when raro, a,.onductead zn M's dent and identifiable. Usually, this is when the plants are flowering. when raz`e, threatened, or ca plants and ianown to occur in the typc[s} of habitat pmt in the praj ect area, oceurrcaocs o f the lams reference sites). should be a to c that fhc specizS are nearby aaccs.�`blc p . _ � � - .. .� identiriablo at the . • . A floristic sure u= that c last observed be identif cd to the event n b. Floristic in nature survey �q �Y P to determine its rarity and Ustivig status. in addition, a sufficient number ofvisits spaced throughout the ,- win season are necessary to accurately determine what plants exist on the site. in order to properly growing as characterize the site and document the completeness of the survey, a complete list of plants observed on the site should be included in,cvcry botanical survey report. c. Conducted in a manner that is consistmt with conservation ethics. Collections (voucher specimens) of rare, threatened, or endangered species, or suspetted rare, du=tened, or endangered species should be made only when such actions would not Jeopardize the contaaued existence of the population and in accordance with to and federal rmit r uiz tents. A collecting permit from the Habitat Conservation Pta�nning applicable eta p� . � - Branch of DFG is required for collection of state4isted plant species. voucher specimens should be deposited* at recognized public herbaria for future r; cc am Photography should be used to document plant identification and habitat whenever possible, bubcspecially when the population cannot withstand collection of voucher specimens. d+ Conducted usi systematic f cld � techniques in all habitats of the site to ensure a thorough coverage of Potential impact areas. - e. Well documented. when a rare, threatened, or endangered plant [or rare plant rommuaity} is located, a " Native S 'cs (Or ) Field SurYey Form Or eat wrtt= form, oaiod by a fotna p� of the appropriate 'on of a ?-S minute topographic map with the . cc should be copy pp`roP P� - . completed and submitted tv the Natural D' ' Database, Locations may be best d Lod using global iti cros GPS) and presented in= and digital forms as these tools mote ac st -bie. -posy C Reports 5. R its of botanical field surveys "should be included in or with eavironmcatal assessments, negative Lions and miti ted n tivc declarations, Timber Ha Plans (`lift ), EIR's; and EIS's, and should declarer � contain the following information: a. Project description, including a detailed map of the project location and study area . written description of biological setting referencing the coinmu nity nomenclature used and a vegetation b. A P � . c. Detailed description of survey methodology. d. Dates of field and total person -hours spent on field.svrveys. - f field . inclu ' detailed maps and *specific tocatioa data for oac� plant population found. c. Results o survey ding Investiptors arc encouraged to provide GPS data and maps d tang population boundaries. E An asscs=ent of potential impacts. This should include a map show the distribution of plants in relation . to proposed activities. Discussion o f the significance of rare, threatened, or cadaagtrad plant populations in the project %area g. I3LS �fi _ _ considering nearby. Populations and total species dis#n'bution. h. Recommended tneasures to avoid impacts. L A list - of all plants o on the project sr�ea. Plants should be identified to the taxonomic level nectswrY to determine whether or not they are run, thrcate ne d or ca reference sit s visited and penological development of rare, threatened, or endangered �. Description of site( s) P plant(s). . Community Field Survey Forms L Copies of all California Native Species Field Survey Forms or Natural ty . P . L Marne of-field invCstigatOrWIP .. Refemnce'.s cited, persons contacted, herbaria visitcA and the k=tion Of .voucher specimens, ._ -. - ATTACHKENT 2 - - Sensitivity of Top Priority Rare Natural Communities in Southern California Sensitivity rankings are deternuned by th e D ep partinent of Fish and Game, California Natural Diversity Data Base and based on either number of known occurrences (locations) and/or amount of habitat The three rankings used for these top priority mare natural communities are as g(acreage). . follows: Less than 5 known locations and/or on less than 2,000 acres of habitat r g- 51.# Les . S2.# O== M" 5 -2� known locations and/or 2, -10,400 acres of habitat ' ' g. in 21 -1 00 -known locations and/or 10,000-60.9000 acres of habitat - - . S3.# . • er the ranks refers to the degree of threat posed to that The to the nght of the decimal point aft g natural colnnity regardless of the ranicing. For earaple. _ S 1.1 = v threatened S2.2 = tbreatened S3.3 = no cm rent threats known Sensitivity Raul ngs (February 1992) Rank CO miaauni Dame S1.1 Moj aye riparian Forest Sonoran Cottonwood Willow Riparian Mesquite Bosque Elephant Tree Woodland Crucifixion Thong Woodland Ailthorn Woodland Arizonan Woodland Southern California Walnut Forest ainl d Chetry Forest Southern Bishop Pine Forest Torrey Pine Forest Desert Mountain white Fir Forest Southern Dune Scrub Southern Coastal Bluff Scrub Maritime Su=dent Snub Riversidean Alluvial Fan Sage Scrub SouthezuMaritime Val/ 1� =Uegrass Grassland . Valley Great Basin Grassland moiave Desert Grassland Pebble Plains Southern Sedge Bog Ci,Slnontane Alkali Marsh Page 1 of 2 CDFG Attachment 2 for I CP Comment Letters Jr qrr- +rl+.. .rrr+IP� S1.2 Southern Foredunes Mono Pumice Flat Southern Interior Basalt Flow Vernal Pool S2.1 Venturan Coastal Sage Scrub Diegan Coastal Sage Scrub Riv e *dean Upland Coastal Sage Scrub Riversidean Desert Sage Scrub Sagebrush Steppe Desert Sink Scrub Mafic' Southern Mixed Chaparral San Diego Mesa Hardpan Vernal.Pool - San Diego Mesa Claypan Vernal Pool . Alkali Meadow Southersi Coastal Salt Marsh Coastal Brackish Marsh Transmontane Alkali Marsh Coastal and Valley Freslnhter Marsh Souxhern Arroyo Willow. . Pdparian Forest Southern wow Scrub M t Basin Cottonwood willow Riparian Modoc -great Basin Riparian Scrub Mojave Desert Wash Scrub Engelmann Oak Woodland Open Engelman oak Woodland Closed Engelman Oak Woodland Island oak Woodland California Walnut woodland Island Ironwood Forest Island Cherry Forest Southern Interior Cypress Forest B i gcone Spruce - Canyon oak Forest S2.2 Active Coastal Runes . Active Desert Dunes Stabilized and Partially Stabilized Desert Dunes Stabilized and partially Stabilized Desert Sandfield Mojave Mixed Steppe Transmontane Freshwater Marsh Coulter Pine Forest - Southern California Felifield White Mo Fellfield S2 -3 Bristlecone Pine Forest Lumber Pine Forest ent Page 2 of 2 CDFG Attachment 2 for NoP Comm I.encrs - - - GRAY DAVIS, Goyorrror STATE OF CALIFORNIA -THE RESOURCES AGENCY CALIFORNIA COASTAL COMMISSION South coa9c Area omce 200 Oceanpale, Suits 1 X00 Long Beach, CA 80802 -4302 April 4, 2002 (562) 590-5071 Mac Cummins City of Seal Beach 211 Eighth Street Seal Beach, CA 90740 -6379 q RE: . Boeing Headquarters Site Notice of Preparation (SCH# 2002031016) Dear Mr. Cummins: Thank you opportunity for the v ortunit to review the Notice of Preparation (Notice) for a Draft Environmental Impact Report on the Boeing Headquarters site. Commission staff received the Notice of Preparation on March 5 r 2002. According to the Notice of recs� industrial manufacturing Preparation the project includes light a and research and development ment uses for the western portion of the property and development of a hotel /retail area at the eastern portion of the property. The pr o is within ,the the Coastal Zone, Accordingly, this proposed development will property - be subject to a coastal development permit. The Commission in evaluating t . he proposed development will evaluate It based on the policies of the Coastal Act. Consequently, the 6lR should include an evaluation of the proposed development's conformance with the policies of the Coastal Act. Commission staff, on .March 30, 200 i , previously commented on an earlier de p ment vela proposal for the project site, A copy of our March 30, 2001 letter has P ro P been attached. The Coastal Act Issues identified in the March 30. 2001 letter still l and must be evaluated In the EIR. These issues relate to the protection of apply sensitive t water quality, and coastal access wetland habitat and environmentally sensitive habits , w and recreation. This letter will focus on additional issues identified through the review of the Notice. Development A reement: The Notice remarks that the proposed development may involve a Development Agreement. Pursuant to California Government Code Section 66869, a development a development agreement is not valid for any project located In an area for which a Local Coastal Program (LCP) development P roji is required to be prepared and certified unless the Commission approves the deve p 9 lv ment agreement by formal Commission action. This requirement should be discussed in the ElR section on the mandatory Agreements, Permits, and Approvals that the project will need, fir■ ec t Objectives: The project objectives of the ElR should be enhanced beyond what rn was contained in the Notice. For example, an additional and more specific Lan APP -84 --2002 15:36 562 590 5084 97% P.02 Page 2 Use project objective would be a development proposal consistent with the v� ect i policies of the Coastal Act. The environmental design objectives should include the siting and design of � rnent to avoid impacts to biological resources including off -site biological develop P For exam le, one environmental design element would be the use of resources. p drnu ht tolerant plants, primarily native end prohibiting the use of non - native 9 plants which are invasive. The project site is reasonably close to the Anaheim 138y y a National Wildlife Refuge. San Gabriel River and the Heilman Bench, and the use of non - native plants, which are Invasive, could have an adverse impact on the habitat values of these areas. The water Q uality project objectives should include specific criteria for the retention and on -site treatment of water to remove pollutants. This would include, but not be limited, to the preparation of a water quality management plan, the ability to retain a 24 -hour storm event (851 percentile), parking lot cleaning, trash removal, and the use of filters. Project Alternatives: Commission staff recom mends that the EIR evaluate a range of project alternatives. For example, Sections 30210 through 30214 of the Coastal Act promote the concept that planned development should enhance coastal access opportunities. Sections 30230, 30231, and 30240 of the Coastal Act promote the protection of marine resources and environmentally sensitive habitat areas, As currently envisioned, the proposed project does not appear to take these policies into consideration. Portions of the project site are adjeceint to open space areas, specifically the Hellman Ranch habitat restoration area, Accordingly the proposed development should consider alternatives that Include a public access component, open space for recreation, and a project design that avoids potential impact to adjacent open space areas through appropriate development setbacks. Trans ortation[Trafflc: The Notice notes that the proposed development has a P otentielly significant impact on transportation /traffic. Beach cities► such as Seal Beach, are congested and notoriously short on parking during the summer season and during special beach events. Though this project site is substantially inland, Commission staff recommends that the EIR evaluate the potential to use the project site for remote parking during peak summer use periods, such as July P 4'', and during special beech events. Though the project proposes to comply with the City's parking requirements, the simple application of default standards could actually result in inadequate parking ased on actual use. Commission staff therefore recommends that a 9 parking study be conducted for the EIR to verify that the project site is adequately parked balled on anticipated uses Page: 2 APR -04--2002 15:37 562 590 5094 97% P.03 Page 3 The Notice did not disclose whether the existing service levels of Westminster Avenue or Seal Beach Boulevard would or would not decline as a result of the project. The EIR should evaluate the existing service levels of these streets and. - � the resulting post project service levelso if there is a post project decline in service level, mitigation or project redesign may be needed to maintain existing service levels. Seal Beach Boulevard is a major access route to the beach, Construction activity occurring during the summer month& could have an adverse impact on the p ublic's ability to travel to the beach, if lanes are closed. The FIR should evaluate construction related impacts on coastal access and provide mitigation measures to minimize construction impacts on the public's ability to use Seal Beach Boulevard. one potential mitigation measure would be restricting any construction activity, which requires lane closures during the summer months. Grad in The Notice identifies that 160,000 cubic yards of import will be required. Though the Notice states that the material will be used for building pads, Commission staff requests that the EIR evaluate if any of the imported material would have an adverse impact on biological resources. For example, would the import of this material result in the fill a wetland or riparian habitat, which would be inconsistent with Section 30233 of the Coastal Act? Cultural Resources: The Notice acknowledges that project implementation may have the potential to impact archeological resources and that further review and analysis is required. Commission staff recommends that additional research be conducted prior to the generation of the EIR so that the potential impacts of the proposed development on cultural resources can be evaluated. Should the proposed development potentially have an impact, the preferred form of mitigation would take the form of designing the proposed project to avoid the impact. Thank you for the opportunity to comment on the Notice of Preparation for a Draft Environmental Impact Report on the Boeing Headquarters site. Please feel free to contact me at 562-590-5071 with any questions. Sin rely, Stephen Rynes, AICP Orange County Area Supervisor HALattere\C:ty of Seal GeschWacCummine❑ .doc Page: 3 APR -04 -2002 15 =37 562 590 5084 86% P.04 i C3RAY DAVIS, Governor •► 5'TATE OF CALIFORNIA -"THE RESOURCES AGENCY CALIFORNIA COASTAL COMMISSION: South-Coaat Area Office 200 Or..e9m9a1§, Suite 1000 Long Beach, CA 90802 -4302 March 30, 200 1 (562) 590-5071 Mr. Lee Whittenberg Development Services Dept. City of Seel Beach E 211 Eighth Street Seal Beach, CA 90740 Subject: COMMENTS - DRAFT INITIAL STUDYIMITIGATED NEGATIVE DECLARATION FOR THE PACIFIC GATEWAY BUSINESS CENTER Site, 220 • 1 Seal Beach Blvd. (Boeing Space & Comm. Div. HO Property) Seal Beach, Orange County SCH# 20410.31002 Dear Mr. Whittenberg: received the subject Draft initial Study /Mitigated Negative Declaration on Commission staff e � Study/Mitigated is the subdivision March B, 2401. Commission staff understand the project bean end Space Communications Headquarters Property � t ncfuding he of the 104.6 acre Boeing P existing facilities are creation of 7 new Iota consisting of one approximately 54 acre lot where 9 c rvx0 ately 6630100 located and the remaining 42 .acres to be divided into 8 lots for a now app square foot research and devela ment, light industrial and warehouse development. Grading c P will include importing pp in approximately 150,000 cubic yards of fill, In eddition, roads and utilities will be constructed to support the new development. The proposed project is locetad within the coastal zone in the City of Seal Beech. The proposed development does require a coastal development permit from the California Cvestal e nt re q Commission. The following comments address the issue of the proposed project's consistency with the Chapter 3 policies of the California Coastal Act of 1976. The comments contained herein are these of Coastal Commission staff only and should not be construed as representing the opinion of the Coastal Commission itself. As described below, the proposed project raises P the protection of wetland habitat and environmentally sensitive habitat areas, issues retat d to p water quality, and coastal access and recreation. Blob ical Reaources The 151MND indicates that impacts on biological resources will be "less than significant" or t" on biological resources. Tho biological report titled Vacant Lands er ~ there will be no fmpac 9 1 24DQ indicates that there are Westm►nsrer Avenue.., by Envicom Corporation dated August which have wetland characteristics but dogs not identify the several drainage an the property drains 9 es as wetlands apparently because the drainages are artificial. However, a letter dated March 19, 2001 from the California department of Fish and Game states that the drainages and requests the preparation of a wetlands identification study. may be considered wetlands 4 Regardless of the origin of the drainages on the project site, these areas ma y . be considered wetlends as Y , defined b the California Coastal Act. Therefore, similar to CDFG s request, Commission staff request that e biological survay be prepared which identifies whether any APR -04-2002_ 15:39 962 990 5084 96% P.05 Comments . Pacific Gateway Business Center Draft ISIMND SCH # 2001.031 002 - Page 2 of 6 wetlands. s defined under the California Coastal Act, are present on the property. In, a d s, a addition, any impacts upon wetlands must be analyzed to the MND. Please note that Commission staff have strong concerns regarding the fill of any wetland habitat in the coastal zone. Under section 3O233(s) of the Coastal Act, there are only eight enumerated uses for which the fill of wetland in the coastal zone is allowed, as follows: (a) The diking, filling, or dredging of open coastal waters, wetlands, estuaries, and lakes shall be permitted in accordance with other applIceble provisions of this division, where there is no feasible less environmentally damaging alternarive, and where feasible mitigation measures have been provided ,to minimize adverse environmental effec rs, and shall be limited to the following: (1) New or expanded port, energy, and coas ral- dependent industrial facilities, including e . ' commercial fishing facilitles. 121 Maintaining existing, or restoring pre viougy dredged, depths in existing navigational channels, turning basins, vessel berthing and mooring areas, and boat launching ramps. (3) In wetland areas only, entrance channels for new or expanded boating facilities; and in a degraded wetland, identified by the Department of Fish and Game pursuant to subdivision (b) of Section 30411, for boating facilities If, In conjunction with such I boa ring facilities, a subs ran tial portion of the degraded wetland is restored and maintained es a biologically productive wetland. The size of the wetland arse used for boating facilities, including berthing space, turning basins, necessary navigation channels, and any necessary support service facillries, shall not exceed 25 percent of the degraded wetland. (4) In open cogs tel waters, other than wetlands, including streams, estuaries, and lakes, new or expanded boating fa ciliries and the placement of structural pilings for public recreational piers tha r provide public access and recreational opportunities. (5) Incidental public service purposes, including but not limited to, burying sables and pipes or inspection of piers end maintenance of existing intake and outfall lines. (5) Mineral extractlon, Including sand for restoring beaches, except in environmentally sensitive areas. (7) Res rora Lion purposes. (6) Nature study, aquaculture, or similar resource dependent acrlviries. Any proposal to fill wetland habitat must demonstrate that the use is allowable under Section 30233 of the Coastal Act. If the use is- allowable, you must demonstrate that the proposed wetland-fill is the least environmentally damaging feasible aiternetive. t 1 APR --04 -2002 15:39 562 590 5064 9 ?f: P.06 comments Pacific Gateway Business center Draft 1SIMNO SCH# 2001031002 Page 3 of 6 • in addition,, many Wetland habitat at areas can also be considered environmentally sensitive habitat areas (ESHA). Section 30107.5 of the Coastal Act defines E.SHAs as h tent or animal life or their habitats are either rare or especially ...any area in wh�c p p their of special nature or role in an ecosystem and which could be valuable because easily disturbed or degraded by human activities and developments. The proposed d8V8foP � ment is adjacent to the Los Alamitos Retarding Basin, and the Hellman r❑ art which are areas which may have ESHA values. In addition,, any wetlands an the P P Y project site may have ESHA values. Section 30240 of the Coastal Act requires that uses in vin i P atible with the maintenance of the ESHA, Section 30240 s and adjacent to an ESHA be c as follows: lal Environmentally sensitive habitat areas shall be protected against any significant t y disruption of habitat values, and only uses dependent on those resources shall be , allowed within chose areas. t to environmentally en toll s ensltive habitat areas and parks (b� Development �n areas adjacent Y ould and recreation areas shalt be sired and designed to prevent impacts which w significantly t Y g 1 degrade those areas, and shall be compatible with the continuance of those habitat and recreation areas. Your environmental analysis must address the presence of ESHA on or adjacent to the subject ro osed development is consistent with Coastal Act polio {es regarding sate, end whether the p p P . ESHA's. In addition, , the b ¢ g i lv 'cal analysis indicates that the subject site contains acres of vegetated been regularly disked and have low habitat value. The biological analysis uplands. which have b n 9 Y . ased upon a single day survey, that no threatened or endangered species are indicates, P present on the site. However, the subject site, which is adjacent to end north of Adolfo Lopez Drive, is near to the Hellman Pro P ernes site which is adjacent to and south of Adolfo Lopez Drive. r� The vacant, frequently disked areas on the Hellman Properties site are utilized as foraging grounds for a variety of avian species, including raptors. According to biological analyses prepared for development of the Heilman site, the federally and state listed American ep P (Falco p rinus anatum) may occasionally forage in the area. Loggerhead peregrine falcon � P ere 9 Lanius lu�ovicianus) (e state listed Species of Special Concern) may breed in large shrike s ( shrubs and small trees in ruderal areas and forage on small prey such as insects and lizards i on the Heilman property. The white - tailed kite (Elanus leucurus) Is state listed which exist P Ful l y o P Protected species) may breed in Gum. Grove Perk and has been observed in the Hellman property area. In a ra addition, other tors that are state listed Species of Special Concern, such d P r harrier Circus c aneus), sharp - shinned hawk (Accipiter striatus), Coopers as the northern � Y -hawk (Acct . prter poop ) erii . osprey (Pandion haliaetus), prairie falcon (Falco mexicenus), merlin a Y {Falco cplumbarius and short -eared owl (Asio flammeus), occasionally forage on the Hellman � Other rs tors which have been observed at the Hellman site include the turkey property. Q h p . athartes aura], American kestral (Falco sparverius), red-tailed hawk (Suteo vulture �� . i ensis and red - shouldered hawk lButeo linestus). Gum Grove Park provides roosting. lama c nesting a nd breeding areas for these sensitive avian species. The presence of relatively APR -04 -2002 15 =38 582 590 5084 96% P.07 r Comments Pacific Gateway Business Center Draft IS /MND SCH# 2001031002 Page 4 of 5 diverse biota on an adjacent property and the presence of similar habitat on the Boeing property suggests that biological diversity and use of the Boeing Property may be more significant than identified in the single day biological survey prepared for the property. Therefore, a more detailed biological survey should be prepared for the site which documents the presence an wetland resources as well as use f the property by any sensitive biological p Y � resources, including but not limited to those identified above. The biological analysis should include surveys of the .property during those periods when use by any particular species would be anticipated. For instance, if certain species are only expected to forage or breed on the project site during certain periods during the year, then any surveys for those species should occur during that period. The MND should include the outcome of the additional biological surveys and identify biological impacts and any mitigation measures necessary. In addition, a biological resources map including overlays showing the existing versus proposed conditions should be included in the MND. Also, the proposed project includes landscaping of common areas, road medians, setbacks, and water quality enhancement areas. In order to assure that Invasive exotic species are not spread to any sensitive biological resource areas, Commission staff recommend that only plant species native to this region of California be utilized for landscaping purposes. Public Access and Recreation Section 30210 of the Coastal Act states: In carrying out the requirement of Section d4 of Article X of the Californis Cons ti to lion, maximum access, which shell be conspicuously posted, and recreational opportunities I shall be provided for all the people consistent with public safety needs and the need to protect public rights, rights of private property owners, and natural resource areas from overuse. Section 30213 of the Coastal Act states: Lo wer cos t visitor an d recrea tional fact iries shall be pro tec red, encouraged, and, where feasible, provided. Developments providing public recrea rlonal opportunities are preferred. Section 30212.5 of the Coastal Act states: Wherever appropriare and feasible, public facilities, Including parking areas or facilities, shall be distributed rhroughout an area so as to mitiga re against the impacts, social and otherwise, of o vercro wding or overuse by the public of any single area. Section 30222 of the' Coastal Act states: The use of private lands suitable for visitor- serving COMMercial recreational facilities designed to enhance public opportunities for coastal recreation shall have priority over APR --04 -2002 15:40 562 590 5084. 97% F.08 Comments f Pacific C eteway Business Center Draft 1S1MND SCH# 2001031002 Page 5 of S private reside ntial . general industrial, or general commercial development, but not over agriculture or coas ral- dependent industry. Section 30252 of the Coastal Act states: The location and amount t o f new development should main taln and enhance public access 'li s tin the provision vision or extension o f transit service, (2) providing to the coast by r 1 J f8e1 t 9 p that areas that will commercial facilities within or adjoining residential developrnenr or in o , . coastal access roads. (3; providing nonautomobrle circulation within mtnrr�r�►�e the use of ca the development, - - i ute means of veld wren t (4J pro vlding adequate perking facilities or providing substitute with public transportation, (b) assuring the potential A r public serving the development P bJ assurin the t transit for high Intensify uses such as high -rise office buildings, and by ( 9 the tetras tiv neI needs of new residents will not overload nearby coastal recreation areas by correlating the amount of development with local park acquisition and development plans with t provision ro vision of onsite recreational facilities to serve the new development. The proposed project is a "general commercial" development. Section 30222 of the Coastal priority Act places a riorit on vlsltor- searing commercial recreational facilities designed to enhance public opportunities for coastal recreation over general commercial development such as that addition the proposed project is adjacent to the Hellman Properties site where a proposed. in P P . Commission approval designates up to � g4 acres of the ion and recent Comm site for recreation pP Appropriate development of the Boeing project si*~' cou environmental open space. enhance P ace. public opportu nities for coastal recreation in this area. The MND must analyze the impacts will have upon public coastal recreation opportunities in the area, the proposed development For instance, of rivate fends which are suitable for public coastal recreation opportunities use p i use is an impact u on coastal resources. Therefore, the suitability of the for a lower priority P P site for Coastal recreation opportunities and the impacts of not utilizing such opportunities must be analyzed in th e Ni ND. Furthermore, hf'it is determined that the site is not suitable for visitor-serving commercial recreation facilities, opportunities for enhancing access to adjacent � areas which i h will provide such uses should be included. For instance, public parking along or adjacent to the proposed-to-be widened Adolfo Lopez Drive and new proposed Apollo Drive vide access to public recreation areas should be considered. In addition, at which pro P ian and bicycle access should be provided along Apollo D. ive and minimum, public pedestrian Y Adolfo Lopez Dave and a direct connection for public pedestrian and bicycle access should be n Apollo Drive and Adolfo Lopez Drive {perhaps between prop osed Building P rovided betwee „ P on the Hallman Property may 5" and "Building ) such that direct access to recreation areas be taken from Westminster Boulevard. Water Quailty The proposed project includes measures such as detention basins and vegetated swales to impacts caused by the proposed development, The proposed measures manage water quality P must be sized and designed to mitigate water quality impacts generate d by the development. T he Commission h as recently required that post - development peak runoff rates and average voium-e from the developed site shall not exceed pre-development levels for the 2 -year 24- flour storm runoff e vent. in addition, post - construction treatment control BMPs shall be designed to mitigate (treat, infiltrate or filtBrl stormwater runoff from each storm event, up to APR -04 --2002 15:41 562 590 5094 97 %: P. 09 F i 1 F r t a i r Comments Pacific Gateway Business Center Draft i StM ND SCH# 200103.1 002 Page 6 of 8 and including the 85th percentile, 24-hour storm event for volume -based BMPs, and/or the 85th percentile 1 -hour storm event, with an appropriate safety factor, for flow -based BMPs. If t he osed water quality mitigation measures do not meet the above criteria, water P ro Q dress whether file proposed quality could be adversely Impacted. The MND should address �elv meets the above guidelines and any impacts upon water quality which may de p ment . result if the development is not consistent with the guidelines. Thank you for the opportunity to comment on this Draft initial Study /Mitigated Negative ty Declaration. Commission staff request notification of any future ectivity associated with this project o r related projects. Please note, the comments provided herein are preliminary in nature, M specific p eclfic comments may be appropriate as the pro *ect develops into final form. Sincerely, Karl Schwing Coastal Program Analyst i Cc; State Clearinghouse APR -04 -2002 15:41 562 590 5084 97% . P.10 GABRIELINO/TONGVA TRIBAL COUNCIL of the GABRIELINO TONGVA NATION 501 Santa Monica Blvd., Suite 500 Santa Monica, CA 90401 -2415 (310) 587 -2203 (310) 587 -2281 (fax) www.TonzvaTrib e.o Tribal Council Hon. Martin Alcala Han. Cindi Alvitre Hon. Virginia Carmelo Hon. Samuel Dunlap Hon Shirley Machado Ion. Edgar Perez April 4, 2002 Mr. Mac Cummings City of Sea] Beach Dept. of Development Services 211 Eighth Street Sea] .Beach, CA 90740 Tribal General Counsel: Rae Lamotb e Tribal Technology Officer: Bruce Becker RE: Notice.of Preparation of Draft EIR - Boeing Headquarters Site Dear Mr. Cummings: CrTY OF SEAL BEACH . APR DEPARTMENT OF DEVELOPMENT SERVICES In response to documentation sent to our tribal office, we are responding with written comments on the above named project. After reviewing the information provided to us, we are recommending that adequate mitigation measures for the protection of archaeological resources be required for this proposed project. we recommend that a qualified archaeologist be retained for the duration of any subsurface construction activity and provide archaeological monitoring of the project area. Since the area of the proposed within the traditional tribal boundaries of the Gabrielinof Tongva Tribal Nation, we request that a Native American monitoring component be provided for this project in order to assist in the identification of any cultural material that may be encountered, and to provide proper disposition of human remains in the event they are uncovered. Please feel free to contact me directly at (909) 262 -9351 (cell) for any further assistance in this matter. incerely, Samuel H. Dunlap Tribal Secretary "One Tribe, One Nation, For all Gabrielinos" � _ o 'S �Q THOMAS B. MATHEWS County of Orange DIRECTOR 300 N. FLOWER S7. �qZjFO Planning &Development Services Department SANTA ANA. CALIFORNIA MAILING ADDRESS: P.O. BOX 4oa8 CITY OF SEAL BEACH A ANA, CA 927024048 1 NC 02 -26 APR '_ � 2002 April 8,, 2002 DEPARTMENT OF ScRViCES Mr. Mac Cummins City of Seal Beach Department of Development Services 211 Eighth Street Seal Beach, CA 90740 SUBJECT: NOP of a DEIR for the Boeing Headquarters Site Dear Mr. Cummins: The above referenced item is a Notice of Preparation (NOP) of a Dram Environmental Impact Report (DEIR) for the City of Seal Beach. The proposed Specific Plan provides for four planning areas within the 104.5 -acre property located at 2201 Seal Beach Boulevard. The proposed project includes light industrial manufacturing and research and development uses for the western portion of the Property, and development of a hotel/retail area at the eastern portion of the Property. The County of Orange has reviewed the NOP and offers the following comments: FLOOD 1. The impact of increased discharges on Los Alamitos Retarding Basin (Facility No. C01B01) from the change in land use and resultant proposed mitigation measures will need to be discussed as part of the DEIR. All hydrologic and hydraulic analyses performed to determine the potential impacts to downstream drainage facilities should utilize Orange County Flood Control District's (OCFCD) criteria and standards contained in the orange County Flood Control Design Manual, the 1985 Orange County Hydrology Manual (OCHNI), and Addend No. 1 to the OCHM. Such analyses should be submitted to the County's Flood Programs for review and approval. 2. ..The design of the ultimate improvements for the Los Alamitos Pump Station is -` - underway. The opportunity exists for the developer to participate in a cost sharing agreement with the OCFCD to mitigate increased discharges from the project site. OPEN SPACE/RECREATION Transp ortati on/Recreati on 3. We understand the City of Seal Beach is proposing a Class I (paved off -road) bikeway along the south side of Westminster Boulevard. We support this concept and suggest including this off -road bikeway in the subject project. Class I bikeways, because they are off -road and suitable for bicyclists and pedestrians with a wide range of ages and abilities, serve to encourage bicycling and walking as alternative modes of transportation. 4. In addition, the project should provide safe and convenient access to, and within, the project site for bicyclists and pedestrians. 5. Bikeways are mitigation measures to help reduce air pollution, traffic congestion, parking congestion, and noise. HISTORICAIJCULTURAL G. The cultural resources mitigation language used in the proposed DEIR should address current standards for artifact curation and long -term collection management. 7. We encourage the City of Seal Beach to follow the Board of Supervisors example in requiring that cultural resource artifacts, which may be discovered during the site devel6pment, be donated to a suitable repository that will maintain the collection for future scientific study and exhibition "within Orange County." Prior to donation, the certified cultural resources consultant should prepare the collection "to the point of identification." 8. The project proponent should be prepared to pay "potential curation fees" to the County or other suitable repository for the long --term curation and maintenance of donated collections. WASTE MANAGEMENT 9. In order to understand the solid waste capacity issue for orange County, it is necessary to distinguish between refuse disposal capacity and flow rate or daily capacity. Refuse ,disposal capacL refers to the available air space capacity at one or more County landfills. Dail ca acit refers to the maximum amount -of daily permitted tonnage that may be disposed. These capacities are established by the landfill permit. Refuse Disposal Capacity_ The County of orange owns and operates three active landfills. The olinda Alpha Landfill is the closest facility to the project, and will likely be the solid waste facility receiving the waste. Notwithstanding, the City of Seal Beach _ - is under contract to the County to commit all of its waste to the County landfill system to a articular facili until the ear 2007. The California Integrated Waste (not p facility) Y Management Board requires that all counties have an approved Countywide Integrated Waste Management Plan (CAVNT). To be approved, the CIWNT must demonstrate sufficient solid waste disposal capacity for at least 15 years, or identify additional available capacity outside of the county's jurisdiction. orange County's CIWMP, . approved in 1996, contains future solid waste disposal demand based on the County PP population projections previously adopted by the Board of Supervisors. The orange County landfill system has capacity in excess of 15 years. Consequently, it may be assumed that. adequate capacity for the subject project is available for the foreseeable future. Daily Cap If the tonnage disposed at a landfill exceeds or threatens to exceed the Permitted Daily Limit on a consistent basis the permit of the affected landfill may need to be modified to ncrease the Permitted Daily Limit. occasionally, the Frank R. Bowerman and olinda Alpha Landfills receive refuse at rates near the maximum limit. , a Consequently, significant increase in solid waste requiring disposal in those landfills q Y � could require a modification of its permit. This action would need to be preceded by an environmental analysis pursuant to the California Environmental Quality Act. Therefore, notwithstanding the availability of R;fuse Disposal Capacity in the County system, y the Count recommends that the project developer contact the City's recycling coordinator to ensure that the proposed project is in compliance with the City .s waste reduction and recycling program. These programs implement state law that requires that each city and county demonstrate a reduction of at least 50% in the amount of waste from that jurisdiction that had gone into landfills in the year 1990. Also, the state requires that this level of reduction be sustained in perpetuity. Waste haulers are expected to contribute by recycling residential and commercial waste they have collected, and project developers are expected to. employ measures to reduce the amount of construction - generated waste. Construction- and demolition - generated waste (C &D) is heavy, inert material. This material creates significant problems when disposed of in landfills; since C &D debris does not decompose, it takes up valuable landfill capacity. Additionally, since C &D debris is heavy when compared with paper and plastic, it is more difficult for the County and cities to reduce the tonnage of disposed waste. For this reason, C &D waste debris has been specifically targeted by the State of California for diversion from the waste stream. Projects that will generate C &D waste should emphasize deconstruction and. diversion planning, rather than demolition. Deconstruction is the planned, organized dismantling of the prior construction project, which allows maximum use of the deconstructed materials for recycling in other construction projects and sends a minimum of the deconstruction material to landfills. We recommend that this project address a waste reduction plan for the C &D waste g enerated from this project. This plan should be coordinated with the recycling coordinator for the City of Seal Beach to help ensure AB 939 requirements are properly ., addressed. K At this time, the County does not have information on solid waste generation rates in Orange Count .An Yquestions about solid waste generation rates should be forwarded to Y . the California Integrated Waste Management Board in Sacramento. . CIRCULATION 11. The proposed project will create a significant traffic impact on the nearby circulation P P system. Therefore a traffic study should be prepared to address these impacts and as miti ations appropriate. The Traffic Impact Analysis (TIA) should be prepared by a g registered traffic engineer and be consistent with the TIA rnethodology of the County and Orange County Transportation Authority (OCTA). The TIA should include a discussion of all assumptions used in the analysis. All intersections that will likely experience a significant ficant project impact (1 %) during the peak periods should also be analyzed. A near and long -term traffic analysis should be completed for the proposed project: The study should also evaluate the feasibility of any proposed mitigations. We would like to review the TIA when it becomes available. Thank Y ou for the opportunity to respond to the NoP. Please send one complete set of the DEIR to me at the above address when it becomes available. If you have any questions, please contact Charlotte Harryman at (714) 834 -2522. CIH Sincerely, Tamoth Y 4Mr Nee Envi ronmental Planning Services Division 4 PUBLIC COMMENT. FORM PROJECT NAME: Boeing Headquarters Site Environmental Impact Report (EIR). CrTY OF SEAL E EACH APR- 2002 DEPARTMENT of DEVELOPMENT SERVICES NAME AND ADDRESS OF COMMENTOR: (include group or public agency affiliation, as applicable) j11 '0a CLI Telephone Number:. COMMENTS: Please pro vide your comments on potential environtnental issuesrmpacts which you feel should be addressed in further detail in the EIR. Attach additional pieces of paper, as needed. This form and/or additional comments can be submitted at the Scoping Meeting or mailed f Seal Beach Department of Development Services, 21'1. Eighth Street, Seal to the City v P Beach, California, 90740, Attention: Mac Cummins, Assistant Planner. fact QL,q IL cle- oz_ WEWW- ID I l dAp, � PUBLIC COMMENT FORM 1 Ci�C` "p1 �E��H PROJECT NAME: Boeing Headquarters Site Environmental impact Report (EIR). NAME AND ADDRESS ri• VEPAI. 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Lam" C cot-'s 4 flew (S 7i,_ pry tley� —hod So �,n,.;q u�Nt lam•a"EiY�$ k. let % y � ".004 A 5 L, CapstoneNVest 5194 Palisade Circle Riverside, CA 92506 909 -787 -1179 Lee whittenburg Director of Development Services City of Seal Beach 211 Eighth Street Seal.Beach CA 90740 -6379 RE: Student Housing MAR 12 2002 . DEPARTMENT Op DEVELOPMENT -� SER CES We have been in contact with Boeing nd its brokers regarding 25 acres of their lands g ou las. We would take the portion which has lowest value formerly part of Macdonald Douglas. . • - that the student housing does well in these areas as neighbor for fight industry. we find t housing . of employment ment and presidential anchors retail well, too. I concerns are 1. The mix p y . would sell with a lengthy contingency for local plan ng and zoning doubt that they wo � which may increase coastal zone reviews, but a 90 day cash sale with normal due diligence contingencies seems possible. I think that we can make a strong case that this land use would result in better fiscal would the permitted industrial redevelopment. About half impact on the community that p of the sale site would remain open fir jobs generating land uses. We would enjoy exploring this further if the community is open to this potential land use. 6r • Sincerely, f Jon XK Hutchison low Ail lot, Proplaw-osed Bloe'iwng Speciffile Plan 96 r' IN a PA- CE & MM., HICATION GROUP P I Fl PLAN SEAL BEACH SITE se.• vw� � y f •� Y 1 r . v f � R w r 10 oei Realt Cor ora n y p '� -��� _ � -T -- -� � II � It 1� 1 1�� 1111111 II�PI�IPI91�IIIII�I. I�IIIIPI�I�PPPI�PI.��1 ■IIPIII�� �_ • . ... - V S EA L-13 EACH CALIFORNIA DECEMBER 2002 BOEING SPACE & COMMUNICATIONS GROUP SPECIFIC PLAN SEAL BEACH SITE BOE /NGF Space 8 CommuNations Group Seal Beach. CA CITY OF SEAL BEACH JOHN BAHGRSKI, CITY MANAGER LEE WHnTENBERG,, DIRECTOR OF DEVELOPMENT SERVICES DOUG DANCS, P.E., DIRECTOR OF PUBLIC WORKS MARK VUKOJEVIC, ASSISTANT CITY ENGINEER MAC CUMMINS, ASSISTANT PLANNER BOEING REALTY CORPORATION 3750 KILROY AIRPORT WAY e SUITE 500 LONG BEACH, CA 90805 PHILIP W. CYBURT, PRESIDENT ALAN DEFRANCIs, VICE PRESIDENT STEPHEN BARKER, DIRECTOR- BUSINESS OPERATIONS DEDE SOTO, PROJECT MANAGER MARK VILLAGOMEZ, DIRECTOR OF CORP. REAL ESTATE, SOUTHWEST PROJECT MAN AGENiENT AND DEVELOPMENT STONECREEK COMPANY CLAYTON M. CORWIN, PRINCIPAL SPECIFIC PLAN PREPARED BY: D. BARTLETT ASSOCIATES, INC. LAND USE AND PLANNING CONSULTANTS DAVID E. BARTLETT, PRINCIPAL IN ASSOCIATION WITH: DEREVERE & ASSOCIATES ARCHITECTURE AND PLANNING DELL DEREVERE, PRESIDENT TAIT & ASSOCIATES CIVIL ENGINEERING CHRISTOPHER HAHN P.E., PROJECT MANAGER CLARK & GREEN ASSOCIATES LANDSCAPE ARCHITECTURE MICHAEL GREEN, ASLA ELEANOR VARGAS www.boting.com Boeing Realty Corporation Q�BOE /A/O' c� BOEING SPACE & COMMUNICATIONS GROUP SPECIFIC PLAN SEAL BEACH SITE INTRODUCTION & PROJECT SUMMARY 1.1 Purpose and Intent 1 -1 1.2 Authority and Procedure 1 -2 1.3 Local and Regional Context 1 -2 1.4 Relationship to the General Plan 1 -3 1.5 Zoning Regulations 1 -5 1.6 Specific Plan Objectives 1 -5 1.7 Project Overview 1 -6 1.8 California Coastal Act 1 -11 LAND USE PLAN 2.1 Development Concept 2.2 Specific Planning Areas 2.3 Planning Area 1 2.4 Planning Area 2 2.5 Planning Area 3 2.6 Planning Area 4 2.7 Land Use Policies 2.8 Phasing Concept 2.9 Circulation Plan 2.10 Circulation Policies 2.11 Grading Concept PUBLIC FACILITIES AND SERVICES 3.1 Water System Plan 3.2 Sewer System Plan 3.3 Storm Drainage Plan 3.4 Water Quality 3.5 Solid Waste 2 -1 2 -2. 2 -5 2 -5 2 -5 2 -6 2 -6 2 -9 2 -9 2 -10 2 -12 PUBLIC FACILITIES AND SERVICES (cunt.) 3.6 Electricity 3 -9 3.7 Natural Gas 3 -9 3.8 Telephone 3 -10 3.9 Cable Television 3 -10 3.10 Police Services 3 -10 3.11 Fire and Emergency Services 3 -10 DESIGN GUIDELINES 4.1 Introduction and Theme 4 -1 4.2 Site Planning 4 -2 4.3 Architectural 4 -6 4.4 Landscape Design 4 -10 4.5 Signage and. Graphics 4 -18 4.6. Site Lighting 4 -25 DEVELOPMENT REGULATIONS 5.1 Purpose and Intent 5 -1 5.2 Development Regulations Policies 5 -1 5.3 Development Standards 54 5.4 Parking 5-4 Boeing Realty Corporation �IOE /A/O" IMPLEMENTATION PROCEDURES 6.1 Precise Plans 6-1 3 -1 6.2 Conditional Uses and Variances 6 -2 3 -1 6.3 Subdivision Map Filing 6-3 3 -2 6.4 Specific Plan Revisions 3 -2 & Adjustments 6 -3 3 -9 6.5 Specific Plan Amendments 64 6.6 Financing 64 Boeing Realty Corporation �IOE /A/O" BOEING SPACE & COMMUNICATIONS GROUP SPECIFIC PLAN! SEAL BEACH SITE FIGURE Nis 1 -1 BSC Building 80 1 -2 1 -2 Vicinity Map 1 -3 1 -3 Aerial Photograph 14 14 BSC Building 90 1 -5 1 -5 Business Park Building Concept 1 -6 1 -6 Business Park Building Concept 1 -7 1 -7 Land Use.Plan 1 -9 1 -8 Building Entry Concept 1 -9 1 -9 Apollo Drive Entry at Seal Beach Blvd. 1 -11 2 -1 Business Park Building Concept 2 -1 2 -2 Land Use Plan 2 -3 2 -3 Business Park Building Concept 2 -5 24 Hotel Concept 2 -6 2 -5 Illustrative Site Plan 2 -7 2 -6 Proposed Apollo Court/Saturn Way 2 -10 2 -7 Proposed Apollo Drive 2 -11 3 -1 Installation of Sewer Manhole 3 -1 3 -2 Water and Sewer Facilities Plan 3 -3 3 -3 Storm Drainage/Water Quality Plan 3 -5 3.4 Water Quality Basin/Retention Concept 3 -7 4 -1 Building Articulation/Fenestration 4 -1 4 -2 Architectural Concept 4 -2 4 -3 Site Planning Detail at Saturn Way 4 -3 4-4 Screening of Loading and Storage Areas 4-4 4 -5 Architectural Concept 4 -6 4 -6 Architectural Concept 4 -7 4 -7 Architectural Concept 4 -8 4 -8 Architectural Concept 4 -10 4 -9 Coordinated Landscape Appearance 4 -11 4 -10 Conceptual Landscape Sections 4 -13 4 -11 Conceptual Landscape Sections 4 -15 4 -12 Shared Entry Concept 4 -17 4 -13 Typical Signage Layout 4 -19 4-14 Wall Sign Location Examples 4 -19 4 -15 Entry Wall Sign 4 -20 4 -16 Freestanding Business Identification Sign 4 -22 4 -17 Freestanding Tenant Identification Sign 4 -23 4 -18 Side and Median Entry Sign Locations 4 -23 4 -19 Business Directory Sign 4 -24 4 -20 Informational/Directional Sign 4 -24 4 -21 Temporary Sign 4 -25 6-1 Conceptual Landscape Plan Detail 6-2 F ACE PHOTOGRAPHS rn C o yr Saturn V Destiny Shuttle Illustration International Space Station Apollo Command and Service Modules Table of contents International Space Station List of Fieures International Space Station =1i-Qn D y- i tiers Section One: Sea Launch, Port of Long Beach Section Two: Space Shuttle Section Three: International Space Station Section Four: International Space Station Section Five: Lunar Roving Vehicle Section Six: International Space Station International Space Station Space Photog,raphs Courtesy of NASA and The Boeing Company Architectural images and landscape themes graphically presented in this Specific Plan are concepts to provide general direction and are not intended to dictate a particular style or vernacular. Illustrative plans and site plans presented in this Specific Plan are concepts intended to depict a hypothetical development scenario for the property. The final location and size of all proposed public utilities and facilities has been estimated for planning purposes only. The final design will be subject to the approval of the City Engineer. MM,w.boeiag.com Boeing Realty Corporation BOEING SPACE & COMMUNICATIONS GROUP SPECIFIC PLAN SEAL BEACH SITE - LIST OF TABLES TABLE NO, TITLE PAGE 1 -1 Surrounding Land Uses 14 1 -2 Existing BSC Facilities 1 -8 1 -3 Proposed Land Uses 1 -8 2 -1 Specific Plan Land Uses 2 -2 4 -1 Wall Sign Chart 4 -21 4 -2 Freestanding Sign Chart 4 -21 .5-1 Permitted Land Uses 5 -5 5 -2 Development Standards 5 -6 F ACE PHOTOGRAPHS rn C o yr Saturn V Destiny Shuttle Illustration International Space Station Apollo Command and Service Modules Table of contents International Space Station List of Fieures International Space Station =1i-Qn D y- i tiers Section One: Sea Launch, Port of Long Beach Section Two: Space Shuttle Section Three: International Space Station Section Four: International Space Station Section Five: Lunar Roving Vehicle Section Six: International Space Station International Space Station Space Photog,raphs Courtesy of NASA and The Boeing Company Architectural images and landscape themes graphically presented in this Specific Plan are concepts to provide general direction and are not intended to dictate a particular style or vernacular. Illustrative plans and site plans presented in this Specific Plan are concepts intended to depict a hypothetical development scenario for the property. The final location and size of all proposed public utilities and facilities has been estimated for planning purposes only. The final design will be subject to the approval of the City Engineer. MM,w.boeiag.com Boeing Realty Corporation Boeing Realty Corporation Q BOE /AEG' C� SECTION ONE INTRODUCTION AND PROJECT SUMMARY 1.1 PURPOSE AND INTENT he Boeing Space &Communications Group (BSC) Specific Plan document provides assurances to the City of Seal Beach that land uses and new development within the Specific Plan area will be consistent with the policies, goals and objectives of the General Plan. The BSC Specific Plan establishes the planning concept, design theme, development regulations and administrative procedures necessary to achieve compatible, orderly and efficient development of the site. The BSC Specific Plan has been prepared under the direction of Boeing Realty Corporation (BRC), a wholly- owned subsidiary of The Boeing Company. The purpose of the BSC Specific Plan project is based on the following underlying principle: In 1993, Boeing was selected as the prime contractor for the Intemational Space Station. Boeing is responsible for design and development, testing, evaluation, hardware and software. To create a quality business park campus compatible with existing Boeing Space & Communications Group headquarters, operations and facilities. The BSC Specific Plan establishes the following: H Identification, location, character and intensities of the planned business park, hotel and commercial development activities. 8 Alignment and design of the circulation system. 0 Identification and location of all public and private facilities and infrastructure necessary to facilitate the project. 8 Land use and development standards for the existing Boeing Space & Communications facilities and for the planned business park, hotel and retail uses. H A compatible design theme for the project area, creating continuity within the planned business park and compatibility with existing buildings, facilities, operations and other surrounding land uses. SPECIFIC PLAN • SEAL BEACH, CALIFORNIA 1 -1 INTRODUCTION AND PRoiEcT SUMMARY 1,2 AUTHORITY AND PROCEDURE The BSC Specific Plan has been prepared and established under the authority granted to the City of Seal Beach by the State of California under the California Government Code, Title 7, Division 1, Chapter 3, Article 8, Sections 65450 through 65457. Specific Plans are intended to be a bridge between the local General Plan and individual development proposals. Under the authority of the above code sections, the State of California encourages cities to adopt Specific Plans either by resolution to establish a policy document or by ordinance to establish a regulatory document. The BSC Specific Plan is intended as a regulatory document and is subject to Planning Commission review and City Council adoption by ordinance. When adopted by City legislative action, this Specific Plan document will serve planning, policy and regulatory functions. The BSC Specific Plan contains standards, Seal Beach is the headquarters for Boeing Space FIGURE l al and Communications Group. Building 80, above, is one of the main buildings on the Seal Beach campus. procedures and guidelines to accomplish this purpose. The BSC Specific Plan is also authorized by the City Council adoption of Ordinance 1193, which created the Specific Plan Regulation Zone and procedures for implementation and adoption of a Specific Plan. The Code of the City of Seal Beach provides for Ordinance 1193 in Article 17, Specific Plan Regulation Zone and Article 29.5, Specific Plans. The BSC Specific Plan is consistent with the regulations and procedures as adopted by the City of Seal Beach. Adoption or amendment of a Specific Plan constitutes a project under the California Environmental Quality Act (CEQA) and the State's Environmental Impact Report (EIR) Guidelines. An Environmental Impact Report (EIR 02 -1) with identified mitigation measures has been prepared as a companion report to the Specific Plan. All development plans, subdivision maps, site plans and other entitlement requests for properties located within the boundaries of this BSC Specific Plan area shall be consistent with the regulations set forth in this Specific Plan. 1.3 LOCAL AND REGIONAL CONTEXT The BSC Specific Plan covers a 107 -acre project area located in the City of Seal Beach in the westernmost portion of Orange County, California (Figure 1 -2). Both primary and arterial roadways are adjacent to the site, providing both regional and local access within the immediate area. A mix of developed land uses surround the property, including industrial, commercial, residential, flood control and military uses. Table 1 -1 identifies the land uses adjacent to the site. 1 -2 BOEING SPACE 8 COMMUNICATIONS GROUP BOEING REALTY CORPORATION INTRODUCTION AND PROJECT SUMMARY The BSC Specific Plan project area is accessed by Seal Beach Boulevard and Westminster Avenue (arterial and primary highways, respectively), Through the City of Seal Beach and the City of Long Beach. The project is also located in close proximity to the California freeway system. Freeways in the immediate vicinity include: 8 The San Diego Freeway (405) is located approximately 1 mile to the north and 2 miles to the northwest. 8 The San Gabriel Freeway (605) is located approximately 2 miles to the northwest 8 The Garden Grove Freeway (22) is located approximately 1.5 miles to the northeast. Pacific Coast Highway (1), the primary arterial along the coast, is located approximately 1 mile to the south and 1 mile to the west. 1.4 RELATIONSHIP OF THE BSC SPECIFIC PLAN TO THE GENERAL PLAN The City of Seal Beach General Plan identifies the 107 -acre BSC Specific Plan area for Light Industrial land uses. The site has been designated for industrial land uses since the mid- 1960's, when North American Aviation initially developed the site. The existing General Plan recommends a "well - planned industrial park offering fully serviced, protected sites for quality industry." The BSC Specific Plan meets the intent of the General Plan in that a quality business park is proposed for the property. However, the BSC Specific Plan does require a General Plan Amendment for the following reasons 8 To amend the Land Use Element to specifically recommend that a Specific Plan be implemented for the BSC property. 8 To specifically permit point of sale industrial /manufacturing businesses in all Planning Areas and hotel and commercial uses in Planning Area 4. 8 To change the General Plan designation from Light Industrial to Specific Plan Regulation (S.P.R.), thereby requiring the preparation of the BSC Specific Plan. SPECIFIC PLAN •SEAL BEACH, CALIFORNIA 1.3 INTRODUCTION AND PROJECT SUMMARY 1-4 BOEING SPACE A COMMUNICATIONS GROUP BOEING REALTY CORPORATION INrRODUCTIDN AND PRoiECT SUMMARY Z.5 ZONING REGULATIONS The 107 -acre BSC Specific Plan area is presently zoned Light Manufacturing (M -1). The purpose of this designation as stated, in the Code of the City of Seal Beach is as follows "It is the intent of the City to encourage and require all development in the M -1 zone to take place under an industrial park concept in order to insure compatibility with surrounding land use and to preserve the general health,. safety and welfare of therommunity.'" The BSC Specific Plan is proposed under the business park planning concept with the Specific Plan as the mechanism or tool that will assure compatibility, preserve the general health, safety and welfare of the community and c cohesive, quality design for the proji The adoption of the BSC Specific Pla will supersede the existing zoning and establish a new set of development regulations and design guidelines for the 107 -acre site. The zoning designation will change from the existing M -1 designation to S.P.R., which the BSC Specific Plan will implement. - J= ' Building 94 on the Seal Beach campus. FIGURE .1-4 The BSC Specific Plan permits opportunities for point -of -sale industrial/ manufacturing uses and allows for office, commercial, hotel and other land uses currently not identified in the M -1 zone. The BSC Specific Plan also identifies a range of conditionally permitted land uses that pare compatible with BSC operations and the proposed business park. The BSC Specific Plan further incorporates design guidelines and development regulations that will assure development compatibility with adjacent land uses. 1.6 SPECIFIC PLAN OBJECTIVES Project objectives have been established for the development of properties within the BSC Specific Plan. These objectives are identified below: Planning and Environmental Design H Provide for comprehensive land use amd infrastructure planning, while respecting the physical and existing BSC operational constraints of the site. H Create a cohesive identity for the Specific Plan area, and provide a consistent project theme, development standards and design guidelines that allow design flexibility to better respond to market weeds. 8 Promote high quality design and well ordered spatial relationships among buildings and land uses. SPECJFIC PLAN •SEAL BEACH, CALIFORNIA 1-5 INTRODUCTION AND PROJECT SUMMARY 8 Unify the Specific Plan area through the implementation of a consistent landscape, architectural and street scene program; and create a Ouve signage system that includes identification, directional and inforrriational signage, which is industrial, manufacturing, research and development, commercial and office land uses in close proximity to similar existing uses. FIGURE 'I-5 Business Park Building Concept. C & D Aerospace at the Fiscal Benefits 8 Allow business park uses that provide point of sale opportunities, and provide for a commercial McDonnell Center Business Park. planning area appropriate for both the Specific Plan area and the overall community. 8 Establish an efficient pattern of local circulation, both vehicular and pedestrian, which will also provide linkage between the project area and the surrounding community. 8 Provide for water quality treatment of urban runoff for new development. Land Use and Develop ment 8 Implement the policies of the Seal Beach General Plan for the project site and vicinity through the Specific Plan process. 8 Increase connectivity within the Specific Plan area, and provide a planning framework that responds to the physical and market driven aspects of future development opportunities. a v (Planning Area 4) allowing for hotel and retail land uses. El Encourage revitalization and reuse within the project area in a logical, systematic manner, compatible with existing BSC operations. 1.7 PROTECT OVERVIEW A comprehensive land use plan has been prepared for the 107 -acre BSC Specific Plan area. This plan provides for development of a business park, combined with hotel and commercial uses, within the framework of the existing Boeing Space &Communications Group headquarters operations. BSC currently has 1,150,000 square feet of floor space, several parking areas, and other facilities on the developed portions of the campus. A summary description of each Planning Area and land use designation follows, with additional H Encourage the expansion of a details provided in Section 2, Land range of employment Use Plan. opportunities within the City of Seal Beach by combining light 7-6 BOEING SPACE &COMMUNICATIONS GROUP BOEING REALTY CORPORATION INTRODUCTION AND PROJECT SUMMARY Planning Area 1: Existing Boeing Space &Communications Campus Planning Area 1 (PA -1) is approximately 41 acres and consists of the core BSC campus. This planning area is designated for the continuation of the BSC facilities with requirements not to exceed BSC's existing campus -wide floor area of 1,150,000 square feet. PA -1 currently supports 805,000 square feet of gross floor area. Therefore, up to 345,000 square feet of new gross floor area may developed within PA -1. The existing office, research and development, manufacturing, warehouse and distribution, and support operations land uses in this Planning Area will be maintained. Boeing Space &Communications Group, a division of The Boeing Company, is headquartered at the property. The property was acquired in 1996 as part of Boeing's acquisition of Rockwell International. Planning Area 2: Business dark Planning Area 2 (PA -2) is approximately 16 acres encompassing a range of existing BSC buildings and facilities. The existing uses will be preserved or replaced with new buildings and facilities provided for in the BSC Specific Plan. Although this area is planned to be integrated into the new business park with new buildings, BSC may require some or all of the existing buildings and facilities to be maintained. PA -2 currently supports 345,000 square feet of gross floor area and is designated for up to 345,000 square feet of new and / or existing gross floor area. Planning Area 3: Business dark Planning Area 3 (PA -3) consists of approximately 45 acres of BSC's vacant land and is planned for business park uses. The existing light industrial (M -1 zoning) and permitted uses will be preserved and expanded, as provided for in the BSC Specific Plan. Two man-made drainage ditches will be incorporated into the landscape and water quality plan for the project in this area. PA -3 will provide for up to 628,000 square feet of new gross floor area. UASNE �� RUILDI Zk +� sniCs The Konica Corporation at = - the McDonnell Center w F �- - Business Park in _ - Huntington Beach. McDonnell Center Business Park was planned and developed by Boeing Realty Corporation SPECIFIC PLAN • SEAL BEACH, CALIFORNIA 1-7 INTRODUCTION AND PROJECT SUMMARY Planning Area Description Existing Building Area (square feet) 1 Core Boeing Space & 805,000 Communications Campus, including buildings 80, 81, 82, 90, 92 and other facilities and structures 2 Various buildings and facilities 3459000 including Buildings 84, 85, 86, 89, 91, 93, 94 and 100 3 Vacant lands 0 4 Unused arkin lot 0 EXISTING FACILITIES ON 107 ACRES: 1150 000 square feet TABLE I BSC SPECIFIC PLAN r.ROPQ LAND US (BY PLANNING AREA) Planning Land Use Gross Acres Rooms Maximum Description Area Gross Floor Area (!S. ft.) 1 Existing Light 41 11150,000 Existing core BSC facilities. Industrial Allows for up to 345,000 square feet of additional building area within PA -1. 2 Planned 16 345,004 Some or all of the existing Business Park buildings may be maintained and/or re -used. New business park buildings planned for PA -2 would require relocation and/or demolition of existing buildings and facilities. 3 Planned 45 628,000 Vacant land planned for business Business Park park buildings, roads, I infrastructure, etc. Portions of the drainage ditches will be used for -- water 2ualitj treatment puM2ses. 4 Planned Hotel 5 120 55,000 Planned hotel and commercial land Commercial 329500 uses, including retail, restawant and similar commercial uses. Business park uses are also L:SPECIF1C permitted. PLAN TOTAL 107 acres 120 rooms 22110 SW 1.8 BOEING SPACE & COMMUNICATIONS GROUP BOEING REALTY CORPORATION � , . -, , flP� " . ,L- -" , Nmr . . . 1. -- � ii ,.' , I . �' 6�1` 1 .1 - . tL� , I T. � -, 31Q , . . . . . . =�} .1 . . 1 311"� , -,I-. I F � 't , I ME , - , .. t ,., - f, -1 ts. kj I : . .1, i - . ... . I . 4 7 .. . . ... � [ - . .. I .. . . . � 4? I I - . - . � - . I.- . 'i '. I , 6 . I � &a -� F � � -� . �., . I . . . . - , Oi I I! I I . .j 0? 11 . 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N-t- � L , _ . . . , , .. 3 . � -, i - I , . , I ;fj it . . 1 . .W � --. IL i .. - ­... I . � ... . - I , . - . , . . I � i - .� fi j CA . . I- .1 - . T.9'. , .4 rp r . -i , . . Z! P; ., , . I. I � - : I . . �1 L F.V. F . . . � 9, � r r . .i , . I , L.- .1 - � % . . . . . . .1 . � � , - - -�j . - ew I - - - . p ; . .. � . . . ,�-L, . . . , . ", ��j L .. - - ;�6 k . . . - L L , : I .. :, . - . . fit - U-S - t�. ! I . , . . - . -,rL ---1. . . , 9. � � . p .. � . L . r,-.,, r 4 � � ".9, . : . , ! 7 %6 . . . - - :,. ; ... .. r � .! & -.. - . i �Zli - , . . ,; , i I �, '�' L , I , . . - � - 4I I , , t - . i. . I . L . . I - . . 1.8 INTRODUCTION AND PROJECT SUMMARY Planning Area 4: Hotel /Commercial Area Planning Area 4 (PA -4) is approximately 5 acres and consists primarily of a (unused) parking lot at the eastern end of the property, between Westminster Avenue and Seal Beach Boulevard. This area will be developed with hotel and / or commercial uses, allowing for up to 120 hotel rooms and 32,500 square feet of new commercial building floor area. Business park uses are also permitted in PA -4, if market or other factors determine that hotel/ commercial uses are not feasible for this site. Circulation The on -site circulation system has been designed to incorporate existing traffic signals to the extent feasible. Access to the proposed business park will occur from both Seal Beach Boulevard and Westminster Avenue. Both of these locations are developed with existing traffic signals and provide .access to the existing BSC campus. Apollo Drive will extend into the business park and may ultimately connect Seal Beach Boulevard to Westminster Avenue, if certain BSC buildings are demolished. Two i r , t r FIGURE 1 -9 PROPOSED APOLLO DRIVE ENTRANCE AT SEAL BEACH BOULEVARD roadways from Apollo Drive (Saturn Way and Apollo court), will provide access to all new parcels. Both roads will cul -de -sac, providing safe and efficient on -site circulation for day - today traffic and emergency vehicles. THE CALIFORNIA COASTAL AcT The City of Seal Beach by Resolution Number 3248, approved and adopted a Draft Local Coastal Land Use Plan (LUP) on February 28, 1983, after determining it to be in accordance with the goals and objectives of the California Coastal Act. The draft LUP was conditionally approved by the California Coastal Commission in 1983, but has never been certified. The draft LUP from 1983 divides the City into seven planning areas. The BSC Specific Plan project site is known in the draft LUP as Area 3, the Hellman - Rockwell Property. Westminster Avenue, Seal Beach Boulevard, the San Gabriel River and the Marina SPECIFIC PLAN * SEAL BEACH, CALIFORNIA 7 -f T INTRODUCr1ON AND PROJECT SUMMARY Hill District bound the Hellman/Rockwell Area, as designated in the draft LUP. This 336 -acre site is currently under the control of six interests, including the City of Seal Beach Redevelopment Agency (Police Station and Public Works Facilities), Hellman Properties (Open Space, Oil Production and Residential Development), State Lands Commission (Designated for Visitor - Serving Uses), Orange County Flood Control District (Los Alamitos Retarding Basin), Accurate Metals (manufacturing) and The Boeing Company (existing headquarters campus for Boeing Space & Communications Group). With the exception of Accurate Metals, adjacent to the Boeing campus, the BSC Specific Plan area is the only industrial development in the City, currently providing approximately 2,500 jobs at the Seal Beach site. The BSC Specific Plan is consistent with the Draft LUP in that it: Provides development of non - noxious industry, such as commercial, research and development and light- industry uses, in an area where such activities will be compatible with existing land uses. • Provides commercial uses that will minimize the use of coastal access roads. Provides development contiguous with existing developed areas that will not have significant adverse effects on coastal resources. Because the City's draft LUP and Local Coastal Program (LCP) remain un- certified, development within the BSC Specific Plan area will require Coastal Development Permit (CDP) approval from the California Coastal Commission (CCC). The CCC is required to make findings that development of this site is in compliance with the goals and policies of the California Coastal Act of 1976 ( "Coastal Act "). The CDP entitlement process with the CCC will be initiated after the City of Seal Beach discretionary approvals have been granted (i.e., General Plan Amendment, Zone Change, Vesting Tentative Tract Map and Precise Plan). The BSC Specific Plan includes objectives, design features and other components that are consistent with Coastal Act goals and policies. These include: • Water quality control features to treat urban runoff. • Maintenance and enhancement of two man-made drainage ditches for water quality and retention purposes. • Biological surveys indicate that there are no Environmentally Sensitive Habitat Areas (ESHAs) located on the property. • Visitor - serving commercial land uses proposed near the corner of Seal Beach Boulevard and Westminster Avenue. 1-12 BOEING SPACE & COMMUNICATIONS GROUP BODING REALTY CORPORATION INTRODUCTION AND PROJECT SUMMARY • Public pedestrian access and connection to the Hellman Ranch open space proposed with improvements to Adolfo Lopez Drive. • Industrial development located contiguous to existing development and primary arterial highways adjacent to the property. It is the intent of this BSC Specific Plan to identify land uses and incorporate design features so that development will be consistent with the Coastal Act. W4 ftaft SPECIFIC PLAN • SEAL BEACH, CALIFORNIA 1-13 • � 1 _ .... � v... -,. -� X i� -. �•. ... -�` - - :: . yam: . +r �,.. -.� :�- .+��..�.- "_ .. •.. 'fir ter• •• . , = r: . •� s! } r � � +�V. � =� r - `-'yam -LO • v•+• � ' • I� � a�Jw�r SECTION TWO LAND USE PLAN 21 DEVELOPMENT CONCEPT he BSC Specific Plan development concept provides for a planned mixed -use business park development, that will be compatible with existing Boeing Space &Communications facilities and operations at the site. The proposed BSC Specific Plan land uses are the product of extensive alternatives FIGURE 2 -1 BUSINESS PARK BUILDING CONCEPT analysis and assessments. The Specific Plan establishes the general type, location, parameters and character of all development within the site's boundaries, while allowing for creative design ideas on individual projects consistent with an overall concept. The BSC Specific Plan takes into account the entire existing 107 -acre BSC Property, southwest of the intersection of Westminster Avenue and Seal Beach Boulevard, in the City of Seal Beach, County of Orange. The property was acquired through The Boeing Company's acquisition of Rockwell International in 1996, and is home. to BSC's headquarters operations. The 107 -acre site contains approximately 1,150,000 square feet of office, research and development, manufacturing, and support operations space. There are nine major structures, seven minor facilities /support structures and other related facilities on the property. The property also provides approximately 3,100 parking spaces. Approximately 41 acres. of the. site are currently vacant lands. Additional new development, new activities, re-use or restructuring of the existing Boeing Space & Communications facilities can be accommodated by the regulations of this Specific Plan. The Specific Plan is designed to allow for development in a manner that is compatible with the surrounding area within, and adjacent to, the City of Seal Beach. The property's existing features and proximity to regional transportation systems make the site ideal for a variety of compatible business park land uses, and for expansion within the main BSC campus. The development concept has been designed to be compatible with the existing site and current surrounding land uses, and is consistent with the community's desire for a strong, self- sufficient economy to attract and maintain jobs and create a more diverse economic base for the City of Seal Beach. SPECIFIC PLAN •SEAL BEACH, CALIFORNIA 2.1 LAND USE PLAN 2.2 SPECIFIC PLANNING AREAS The BSC Specific Plan is divided into four (4) Planning Areas: 1) Business Park 2) Business Park 3) Business Park 4) Hotel /Commercial The proposed land uses and Planning Areas are illustrated in Figure 2 -2 and detailed in Table 2 -1, below. ., PA SPECIFIC P1,AN 1,AND USES PLANNNG LAND USE GROSS MAXINRW ROOMS FUNCTION/ AREA ACRES GROSS CHARA TICS FLOOR AREAfF.A.R. Existing care campus of Boeing Space I Business Park 41 1,150,000 & Communications. Mix of uses including manufacturing, office, Max.: F.A.R.: 0.75 research and development, light industri al, warehouse a nd distri bution, and support services. Existing building area represents 805,000 square feet. Additional building area of up to 345,000 Nuare feet is permitted. Existing buildings and facilities may be 2 Business Park 16 345,000 reused or maintained for current BSC operations. New development of this Max.: FAA-: 0.60 PA would require relocation of existing facilities and demolition of existing buildings. Business park uses include manufacturing, light industrial, research and development. warehouse and distribution, and support services. This PA consists of a parking area and 3 Business Park 45 528,000 vacant land and is designated for the majority of the new business park. New Max.: F.A.R.: 0.60 roads and infrastructure are also proposed. Uses include manufacturing, light industrial, research and development and warehouse and distribution, and support services. Portions of the drainage ditches will be utilized for water quality treatment purposes. Planned hotel and commercial land 4 Hotel/ 5 87,540 120 uses, induding retail, restaurant and Commercial/ similar commercial uses. Business park Business Park Max.: F.A.R.: 0.65 uses are a] so 22nnitted. TOTAL 107 29210r5W 120 Notes: (1) Square footage may vary and may transfer between Planning Areas if intensity of use is consistent with the "Trip Generation Budget" for the BSC Specific Plan and allowed within the Planning Areas. (2) F.A.R. indicated is maximum for each Planning Area. (3) See Table 5 -1, page 5 -5 for permitted uses, and Table 5 -2, page 5 -6 for development standards. 2 -2 BOEING SPACE S GOMMUNICA rIONS GROUP BOEING REALTY CORPORA riON 7 ?'4 'JI !r CL [4'4 4 1111 ir 3j? IILM T Ir F. V L L L L 417 t I I `it Ir II +iYr �rJl.. ti j}�!y�' 1. Ci 1 �����, .,"�,.rr.�I �- � :3t., r:�:.r r �._' ::F. - }H, ,l _��l �- �I�''- ��'+ ?r +, : -I� ',i., i`�f �i- j T '4 L T7, IIV L •IL T IIrz Ii f: ILr: _j T 'I- I-T, ­4.. •1. A Ja I 411' T_ Ij • � � �.,;� #F,. ''�� e�� �r +r I''���i ••T*+'r �.� }'�-,�i•r yh:''� �f �� '�''.�,�4. _��� .[ ' ?y�t� .. _ ' ?�f,. r k ."I; •r` #�,' :i.j !��' }I- { "f 2', - .f: ykz, r` :a' 3� ,_�'a ~i� _ A�r •if L L I L I C.L. p W. Pr. JIL k 1p� IIIrL- 'P T t r o7 4 I A. F 17. r.- r k .'g� Jr I7,7 j 7 .7 • I p rK A j 4 L C7 R_ *41 3 r L �p j IL, P, Ii. 4t� IL7 4P_ L 4 p d7, _6 L L V. 4 Ij L L �, � �'. � �� _ f ,r }( .,J. ' +'i[r .fir ; rx -j 1p r IL L TLa E. I. bm� 41 04 fIs if's M. •I O I II •f i1 �:? E„ •.:! ( { { [ �F r'i�. `Y� �r' 'Y fi 4 +4 s. -r' T 7 d ' . 4 . , I '41 'r LL r I!4 ISir TV' Iid I p t I. I L'o i IL jr I7 I'L A r d. I r 4 ;g L 4�k_l L AI, c m 46Q '1Z 4L T . f - - , !p - 1. - - �. - � - 1. ' I rp L k d L p —9L 41� '16 1L d j IL I�.M L jv! ie I- V -all ?i 4j f . if 'r- cjxk? 7'0 IA: L L P L 311 72 % T7 L 2A III3 d 4 RL L .,-VLv .3 =KjMmfimua;=== «._ '47 r t ej ,- IL F I gu X� 4 " L Ile .6. t,it t7 i 0. dL Tj- 41 lip I 49 tr. 1 III �# pq V . r IL Vp k.. 2.3 2.4 2.5 LAND USE PLAN PLANNING AREA 1 BUSINESS PARK (EXISTING BOEING SPACE gL COMMUNICATIONS CAMPUS PA -1 is approximately 41 acres and comprises the existing core campus use of the property. This includes Buildings 80, 81, 82, and 90, the surface parking fronting Westminster Avenue (also known as parking lots 3 -6), and other facilities and structures. The existing office, research and development, warehouse and distribution, manufacturing, and support operations land uses in this Planning Area will be preserved and maintained. PA -1 currently supports 805,000 square feet of gross floor area. To respond to potential government and business contracts, developing communication and space technologies, and to support general business demands, PA -1 is designated for a maximum of 1,150,000 square feet of gross floor area (an additional 345,000 square feet). The maximum F.A.R. for PA -1 is 0.75. PLANNING AREA 2 PROPOSED BUSINESS PARK PA -2 is approximately 16 acres and includes a range of BSC facilities and buildings, including Buildings 84, 85, 86, 91, 93, 94, 96, and 100, a fire system tank farm, and an electrical substation. The existing gross floor area is approximately 345,000 square feet. Existing buildings and facilities in PA -2 may be maintained, reused, relocated or eliminated, depending on BSC business requirements. PA -2 is designated for business park purposes with a maximum of 345,000 square feet of new and/or existing gross floor area. The maximum F.A.R. for PA -2 is 0.60. PLANNING AREA 3 PROPOSED BUSINESS PARK PA -3 is approximately 45 acres of vacant land. This Planning Area provides for the majority of new development on the BSC site. New light industrial buildings with up to 628,000 square feet of gross floor area are designated for this Planning Area. The maximum r.....: _ F.A.R. for PA -3 is PA -3 will include a - -w new road system including ingress/ egress from Seal J� , Beach Boulevard and Westminster Avenue via o A lio p Drive, providing access to the new industrial park and existing facilities. FIGURE 2 -3 BUSINESS PARK BUILDING CONCEPT SPECIFIC PLAN & SEAL BEACH, CALIFORNIA 2 -5 2.6 2.7 LAND USE PLAN Two man-made drainage ditches will be incorporated into the water quality and landscape plan for the project in this area. The water quality concept is to incorporate bio- filtration, treatment areas and best management practices (BMPs) to capture low flows and provide retention to meet the stormwater runoff and water quality objectives of local and state agencies. PLANNING AREA 4 PROPOSED HOTEL I COMMERCIAL AREA PA-4 is approximately 5 acres consisting primarily of (unused) parking lot 7 at the NW ::�2 -77" eastern end of the FIGURE 2-4 HOTEL CONCEPT LAND USE POLICIES property, between Westminster Avenue and Seal Beach Boulevard. This area is planned for hotel and/or commercial uses, allowing for up to 120 -hotel rooms and 32,500 square feet of commercial, including retail, restaurant and / or other similar commercial uses. Business park uses are also permitted in this Planning Area. 2.7.1 The existing Boeing Space &Communications facilities may expand within each Planning Area after Precise Plan Review and / or Subdivision Map approval. 2.7.2 Office uses shall be allowed in all Planning Areas. 2.7.3 Point of sale industrial business and manufacturing uses are permitted and encouraged in all Planning Areas. 2.7.4 Business park - related land uses, particularly light manufacturing, assembly, research and development, warehouse and distribution, are permitted in all Planning Areas. 2.7.5 Planning Area 4 is intended for hotel/ commera' al uses. Commercially reasonable efforts to market the property for this use shall continue for a period of 18 months after adoption of the BSC Specific Plan. If hotel/ commercial uses are determined within such 18 -month period not to be feasible, Planning Area 4 may be developed with business park land uses. 2-6 BOEING SPACE A COMMUNICATIONS TIONS GROUP BOEING REAL rY CORPORA rION ,, - �- 14L - �j . % ., . " X I . . . . r. .--� * - - I � . � I A . . . , . . �i , . I , , - L . .. �p . -. •'. . . . . ': , ! � . . .� , , I . I . .. i- - . , 1, 46 � I � . i . � - , , . 4 " d I � . . .. . 4 ..3. � - . �. 11 I - , . . • . . . . I. . IF .. . . I I . - 4 . . . . . . - . .,. . � , � - ` � p - - -, . .. '. .,� P , . I . 17 . . . , . .. 7. � , - . . o b I .: . - I I - � . . . . % ; ... . � .. ; 3 . : . -._� .. � . . . . . I � . . d � . , ........ . . .1 . . - . I , . , 1 . . It I - . Z .. ., _� . . . . . . . . . . . . . il - - '1% - '9 I ev . _. . - I i - I k_4 � 7 ,�'. . . I . � ,.,I - - ?r W, . I W 14 .. 6 •9L- . �: ": I... .: . -6. . . . .. . , - T. . Ar" . c ... .�. I � . . 4 � . -6 . . _..k. . I. . . W4 . . , - . I .. . , . .- : k; . r� - -1 . 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It 8 r 'L . - r - - .1 :1 � I c A i�_5 ilz I. P. � 9 .: ;_ , I. r "T I �;,. ; .1 W.-r. % I � - Yr. t - - . I . � - - -_ . I L AEM I IN W_ Dr., I 0 LAND USE PLAN 2.8 PHASING CONCEPT Development starts and occupancy is not mandated by any phasing schedule. Development will be dictated by market demand and phased accordingly. The conceptual phasing schedule identified below is a best estimate for planning purposes only. 8 Demolition, grading and construction of the roadways and required infrastructure improvements to serve Planning Areas 2 and 3 of the project are anticipated to begin by the end of 2003, after all entitlements have been issued. These improvements would be completed by mid -2004 in a single phase. 8 Building construction may commence by early 2004 for the portion of Planning Area 3 located adjacent to Westminster Avenue and continue in a southerly progression. El Building construction in Planning Area 4 may commence by early 2005. 8 Occupancy is anticipated to occur as early as mid -2004, with full occupancy expected by the end of 2006. 2.9 CIRCULATION PLAN Access to the City of Seal Beach and The BSC Specific Plan area is provided by Seal Beach Boulevard and Westminster Avenue (arterial and primary streets, respectively), through the City of Seal Beach and the City of Long Beach. The City's General Plan designates Seal Beach Boulevard as a Major Arterial Highway with a 120 -foot right -of -way. Westminster Avenue is designated as a Primary Street with a 100 -foot right -of -way. The project is also located in close proximity to the California freeway system. Freeways in the immediate vicinity include: ♦ The San Diego Freeway (405) located approximately 1 mile to the north and 2 miles to the northwest. ♦ The San Gabriel Freeway (605) located approximately 2 miles to the northwest. ♦ The Garden Grove Freeway (22) located approximately 1.5 miles to the northeast. ♦ Pacific Coast Highway (1), the primary arterial along the coast, located approximately 1 mile to the south. SPECIFIC PLAN • SEAL BEACH, CALIFORNIA 2 -9 LAND USE PLAN The Land Use Plan and Illustrative Site Plan illustrate the general alignments and locations for streets within the BSC Specific Plan. Internal circulation for the existing campus is currently provided by a network of private streets and drives that meet the requirements of current BSC operations at the site. New primary access locations into the project area will be from Westminster Avenue and Seal Beach Boulevard (Apollo Drive). Apollo Drive may ultimately connect Seal Beach Boulevard and Westminster Avenue, with the demolition of buildings and facilities in Planning Area 2. Apollo Drive access points have been located and designed to provide full turning movements at existing signalized intersections. Two roads from Apollo Drive (Saturn Way and Apollo Court) will provide access to the new parcels and will cul -de -sac. The roadway system will adequately serve the projected traffic volumes for the Specific Plan area. The circulation system will accommodate the build -out of the Specific Plan area. Initial street construction and future phased construction or reconstruction will be Vow on* law •'mil �r ri { MASINear &MLm IDNIPmft - _ !A `► X r.Fy t t 31. i 4 � *�s Si �± � r� _■ � icT Via. _ � _ � �� a� ■ �,� aveam" X" FIGURE 2 -6 PROPOSED APOLLO COURT /SATURN WAY completed in advance of occupancy of new facility- phased construction. The Director of Development Services and the Director of Public Works shall approve phasing plans for street improvement construction, consistent with development construction phasing and implemented through the Precise Plan Review and / or Subdivision Map process. 210 CIRCULATION POLICIES 2.10.1 Saturn Way and Apollo Court are proposed to accommodate a public right- of -way of 60 feet. 2.10.2 Upon development of Planning Area 2, and in coordination with the City Engineer, Apollo Drive may be extended to connect Westminster Avenue with Seal Beach Boulevard. 2 -10 BOEING SPACE & COMMLlNICAVONS GROUP BOEING REALTY CORPORA rION LAND USE PLAN t aglow 110M •�L w F aa■■�rra •saa�s • r s 010=10 mr-M ORs= --,'• '� Pd"L OW -mew T &"W%AA Plkr* v ■ . ftrw�& s IL FIGURE 2 -7 PROPOSED APOLLO DRIVE 2.10.3 Apollo Drive is proposed to accommodate a public right -of -way of 60 feet. 2.10.4 Final right -of -way design for public streets within the BSC Specific Plan area will be determined in connection with final approval of Vesting Tentative Tract Map 16375. 2.10.5 Project entries may include a larger cross - section to accommodate full turning movements, medians and traffic signals as determined by the Director of Public works. 2.10.6 Pedestrian sidewalks shall be incorporated into the right -of -way for Apollo Drive, Apollo Court and Satum Way. Sidewalks shall be installed to best accommodate pedestrian needs adjacent to new development within the Specific Plan area. 2.10.7 Other existing ingress /egress to Westminster Avenue and Seal Beach Boulevard to the BSC campus shall be maintained. 2.10.8 Adolfo Lopez Drive shall be improved adjacent to the project. Access to the adjacent lot(s) from Adolfo Lopez Drive shall be permitted. 2.10.9 Landscaped parkways for public streets are permitted between the curb and sidewalk. 2.10.10 On street parking shall not be permitted anywhere in the project area. 2.10.11 The "Trip Generation Budget" identified in E.I.R. 02 -1 shall be reviewed with each individual project request at the time of Precise Plan Review and or Subdivision Map submittal. SPECIFIC PLAN ■ SEAL BEACH, CALIFORNIA 2-11 LAND USE PLAN 2.11 GRADING CONCEPT Site grading will require cut and fill to create building pads that are slightly elevated to match existing, developed conditions, and to facilitate adequate sewerage and drainage. Final grading plans will be approved by the City Engineer, prior to issuance of a grading permit. bNae MsIt! r—raratloe 2 -12 BOEING SPACE & COMMUNICATIONS GROUP BOEING REALTY CORPORATION Boeing Realty Corporation SECTION THREE PUBLIC FACILITIES AND SERVICES he public facilities plans identify. existing and proposed infrastructure, storm drain, sewer and water facility improvements to serve development within the Specific Plan area. Existing private utilities and facilities withal the BSC campus will continue to be the responsibility of the property owner. The sizing and location of public facilities identified in this section of the Specific Plan have been estimated for planning purposes only and are subject to refinements in the. final design of the project. The final design is subject to the approval of the City Engineer. 3.1 WATER SYSTEM PLAN An adequate water supply is necessary to serve new development within the Specific Plan area. The City of Seal Beach Public Works Department currently provides domestic water service to the property. Existing water lines and facilities will be extended and new facilities will be constructed with new development (Figure 3 -2, Water and Sewer Facilities Plan). Currently, the City of Seal Beach provides water to its service area from four wells that have a total pumping capacity of 11.46 million gallons per day (mgd) or 7,800 gallons per minute (gpm). Additionally, the City of Seal Beach owns approximately 3.9 mgd (2,700 gpm) capacity in the Metropolitan Water District's OC -35 connection. The City's combined capacity is 15.36 mgd (10,500 gpm). The maximum daily demand, peak hour demand and fire flow requirements of development within the Specific Plan area can be met with the City's existing supply capacity. All water mains are proposed to be dedicated to the City through easements and / or through public dedication for road right -of- way purposes. 3.2 SEWER SYSTEM PLAN FIGURE 3 =1 Sewer Manhole Installation The provision of adequate sewerage facilities is an important prerequisite to development. The sewerage facilities in Seal Beach are composed of shared, public pipelines and related facilities which collect and transport water -borne wastes away from individual homes or businesses, treat the waste and then dispose of it in a manner that is not detrimental to the public health or to the environment. Collection and SPECIFIC PLAN • SEAL BEACH, CALIFORNIA 3-1 PUBLIC SERVICES AND UTILITIES treatment of sewerage in Seal Beach is accomplished by a combination of City and County facilities. This includes pipes, pump stations and treatment plants, all of which have the capacity to serve development of properties within the BSC Specific Plan area. Local wastewater is collected and conveyed through Seal Beach facilities to the Orange County Sanitation District Plant No. 2 in Huntington Beach where it is treated. The treated effluent is then disposed of through the existing ocean outfall. The BSC Specific Plan is located within District 3 of the Orange County Sanitation District. Existing BSC facilities connect into the City's lift station at Westminster Avenue. New development will include additional sewerage facilities, including service lines, force mains, lift stations and / or modifications to the existing City lift stations (Figure 3 -2, Water and Sewer Facilities Plan). 33 SToRm DRAINAGE PLAN The BSC Specific Plan area is developed with a series of private catch basins, storm water pipes and man-made open drainage ditches that convey runoff from the undeveloped and developed portions of the site to the adjacent Los Alamitos Retention Basin (LARB). The LARB is a 35 -acre regional flood control facility owned and operated by the Orange County Flood Control District (OCFCD). The LARB provides for collection and storage of storm water runoff from a 5,000 -acre watershed, prior to being pumped into the San Gabriel River. The BSC Specific Plan project includes use of, and extensions to, existing facilities to continue to control storm water on the site as well as construction of new facilities (Figure 3 -3, Storm Drain and Water Quality Concept Plan). The ultimate location and sizes of the proposed storm drain lines may vary from that shown on the plan. 3.4 WATER QUALITY Water quality in California is primarily regulated by the National Pollution Discharge Elimination System (NPDES), under the federal Clean Water Act. The State of California Water Resources Control Board (SWRCB) and the Regional Water Quality Control Board (RWCQB) administer both State of California and NPDES regulations. Locally, the County of Orange has developed a Drainage Area Master Plan (DAMP) and the City of Seal Beach has adopted a Storm Water Quality Management Plan (SWQMP). The SWQMP requires implementation of, and compliance with, all local, state and federal regulations regarding water quality. The BSC Specific Plan provides for provisions to be consistent with all 3-2 BOEING SPACE B COMMUNICATIONS GROUP BOEING REALTY CORPORATION Ri 1 r O w dk J4ti� � I U] Sa, LL Fz \ IN Lli rD LLJ � jo �I WV l � t Z =U U. L W I a— 3 S T I� T �1. 0 f i 1 J r w i� CL W fjW 1 #r .n W LL LO w �j cj� W r W w C :, Z Lo C. W ZO FZ o Uim F_� Z Oo � W ti C1 cc OL �r r a- 1 I: w w cl W [ul 0 CL 0 6� CL !T• r F#i -L • %��yti,,. 4� , • ler ti r jr 1i In, , tr 6 1 f i 4� r � r r f tq Li j! LLJ CL fL J CL a- 1 I: w w cl W [ul 0 CL 0 6� CL !T• r F#i -L • %��yti,,. 4� , • ler ti r jr 1i In, , tr 6 1 f i 4� r � r r f l fL J 1 O j'w.� -IBS• d�4 �'�• a }.�- �4 y�.i•ri l F ti[ #.ka'6 t! vi• - UA �•�- i � W - r a- 1 I: w w cl W [ul 0 CL 0 6� CL !T• r F#i -L • %��yti,,. 4� , • ler ti r jr 1i In, , tr 6 1 f i 4� r � r r f �a wi O � I� I� I� r R iL Li O II O� U (7 O�y YL A-- IR i If I� i I� I MOO L 0 U ti+ r �i l #t ;4 • w i E i 'T 1 I 6 1 c °n t LO i� 4. ai i CK � wo R LLI r{� i w z L W W7 ( -) 07 CL LY M �! z f F z Ld Lij 0 Ld (0 0 00 CL -i L ly. IL 1�.I z .ti r 0 bi FY ED EL .2 Ld (n 2! a I..L ci M y . 1 �'• 19 f X Ld t . r �a z 0 L rn 4 li- + 'm6m ' • -� - ell ~� 1 r s� 1 + F u i - um PA e ■ y r L � 'T 1 i� ai CK ~� 1 r s� 1 + F u i - um PA e ■ y r L � NO �l P.F Re OV ILI vaew 'I 3 1 r 1�7 AJW FF'J' lin M4 al!tj� W. T .1 pp 1p Ll IF6 Ei ffw��- �iwl mp, j . F k Ph-- o rg L Me • IT, %ki 4L IT, %ki 4L PUBLIC SERVICES AND UTILITIES local, State and federal regulations. The water quality management concept for the BSC Specific Plan is to: (a) Implement a variety of structural and non - structural Best Management Practices (BMPs); and, (b) Establish certain maintenance procedures and other management practices to prevent and / or reduce the pollution of downstream receiving facilities (i.e. the Los Alamitos Retarding Basin). Typical elements of such a BMP program will include the use of City- approved catch basin filters and may also include the use of oil and grease traps, bio- filtration, local detention basins, vegetation filter strips and inlet separation devices. The intention is to use, expand and enhance the central and southern drainage ditches for storm water runoff and water quality purposes (Figure 3 -3, Storm Drain and Water Quality Concept Plan). A final Water Quality Management Plan for the Specific Plan area will be prepared prior to issuance of any grading permit. Other public services and utility providers that service the BSC Specific Plan area.are identified below. 15 SOLID WASTE Solid waste generated by the BSC Specific Plan will be disposed of at county landfills. Within the City of Seal Beach, solid waste is currently picked up and recycled and / or disposed of by a private company selected by the City. Based on service projections and anticipated demand increase, an adequate level of service will be maintained for the Specific Plan area. No solid waste disposal facilities are planned to be located in the Specific Plan area. 3.6 ELECTRICITY The BSC Specific Plan area is currently located within the service area of the Southern California Edison (SCE) Company. Existing transmission and distribution lines are adequate to service current and potential future needs. Individual development projects may require relocating existing facilities, including the on -site sub - station, concurrent with other improvements. All new services will be provided underground. 3.7 NATURAL GAS Natural gas service in the Specific Plan area is currently provided by the Southern California Gas Company. Development projects will require SPECIFIC PLAN • SEAL BEACH, CALIFORNIA 3-9 PUBLIC SERVICES AND UTILITIES extensions and possible relocations of natural gas facilities. 3.8 TELEPHONE Telephone service in the Specific Plan area is currently provided by General Telephone (GTE). Coordination with GTE will be required for relocation of existing facilities and installation of new service. All new services will be provided underground. 3.9 CABLE TELEVISION Cable television service within Seal Beach is currently provided by Adelphia Communications. Coordination with this company will be required for the installation of new service. All new services will be provided underground. 3.10 POLICE SERVICES The City of Seal Beach Police Department currently provides police services to the BSC Specific Plan area. The Department currently has thirty -seven police officers, sixteen civilian employees, eight reserve police officers, and forty senior volunteers providing quality service to the City of Seal Beach. 3.11 FIRE AND EMERGENCY SERVICES The Orange County Fire Authority (OCFA) currently provides fire prevention/ suppression and emergency services to the City of Seal Beach. Stations serving the City of Seal Beach include Station 44 at 718 Central Avenue and Station 48 at 3131 Beverly Manor Road. �oNp Miq p�a�ua 3-10 BOEING SPACE B COMMUNICATIONS GROUP BOEING REALTY CGRPORAMN Boeing Realty Corporation �BOE /iVG' SECTION FOUR DESIGNGUIDELINES 41 INTRODUCTION AND THEME he BSC Specific flan is a planned community for existing and planned light industrial business, research and development, office and commercial uses. The design guidelines in this document define the general criteria for implementing coordinated design, organizational unity and overall visual identity for the new areas to be developed, while maintaining opportunities for specific needs and creativity for each project. Included are parameters for integrated ' g ted site 4;7 panning, architecture, landscaping and FIGURE 41 exterior lighting, as BUILDING ARTICULATION well as procedures AND FENESTRATION and requirements for .design submittal and review. The intent of these guidelines is to establish a consistent design concept that produces a clear image and a sense of prestige, efficiency and integrity. The BSC Specific Plan has an overall coordinated design character that emphasizes a clean, contemporary, straightforward and quality image. This image is expressed in site planning, architecture, landscaping, lighting, and signage. Architectural design is to be compatible in character, massing and materials throughout the BSC Specific Plan area, while allowing for individual identity and creativity in each project. The design guidelines have been developed to be "guidelines" as opposed to "development regulations" identified in Section 5, and should not be interpreted to require stringent compliance with any particular element. To promote the quality of design planned for this project, the design guidelines given in this document establish criteria that enhance the coordination, organization, function and identity of the site, while maintaining a compatible relationship with the surrounding development of the BSC Specific Plan. SPECIFIC PLAN • SEAL BEACH CALIFORNIA 4-1 DESIGN GUIDELINES 4.2 SITE PLANNING Site planning guidelines for the BSC Specific Plan have been developed to create visual consistency and promote the image of a quality business park. Site planning is to be developed in a manner that emphasizes a clean, pleasant and contemporary following site planning policies will be utilized by the City in reviewing Precise Plan applications for development within the BSC Specific Plan area. environment. The goals of the site planning guidelines are to control building placement, enhance entry effects, organize vehicular and pedestrian circulation, address future expansion for buildings and parking, and lessen the influence of disruptive elements such as service areas. To facilitate the development of the BSC Specific Plan into a unique resource for the community, the FIGURE 42 ARCHITECTURAL CONCEPT Building Entry 4.2.1 Building Locations Buildings are to be located on each site in a manner that is efficient, appropriate to site conditions, consistent with the overall architectural composition and compatible with nearby projects and development throughout. • Buildings should be located to enhance project visibility and identity, while maintaining compatible relationships with adjacent properties and street frontages. • Buildings should enhance the characteristics of the site. • Buildings should take advantage of local climate and achieve optimum energy efficiency. • Buildings should be oriented so that loading and service areas are not visible from the street, and are screened from public view and residential areas to the extent feasible. 4-2 BOEING SPACE A COMMUNICATIONS GROUP BOEING REALTY CORPORATION DESIGN GUIDELINES 1 f i f 1 1 1 ! Pu :ism 1 , Saw" wp: r FIGURE 43 CONCEPTUAL SITE PLANNING DETAIL AT SATURN WAY Additional screen walls and landscaping should be considered to reduce potential visual and noise impacts. • Buildings should be arranged to provide convenient access to entrances and efficient on -site circulation for vehicles and p edestrians. • Multiple buildings an a single site should be oriented to promote efficient auto and pedestrian circulation. Buildings should also be arranged to permit development of usable outdoor spaces. 4.2.2 Parking • Parking areas are to be landscaped to provide a pleasant appearance. • Any parking beneath buildings or in parking structures shall be screened by architectural design or landscaping. • Parking areas for motorcycles and bicycles are to be designed for orderly, uncluttered parking. Bicycle parking areas are to be provided with racks and locking capabilities. SPECIFIC PLAN & SEAL BEACH, CALIFORNIA 4-3 DESIGN GUIDELINES • Designated spaces shall be provided for handicap, carpool, motorcycle and bicycle parking, as required by the State of California and the City of Seal Beach. 4.2.3 Pedestrian Circulation Safe, clear pedestrian circulation shall be provided between buildings, parking areas and entries. Americans with Disabilities Act (ADA) compliant pedestrian circulation shall be provided from parking areas to building entries and to streets. 4.2.4 Service Areas Service, storage, maintenance, loading and refuse collection areas should be located out of view of residential areas, public roadways and buildings on adjacent sites, or screened by dense landscaping and /or architectural barriers to the extent feasible. Service areas should be located so that service vehicles have clear and convenient access that does not disrupt vehicular and pedestrian circulation or create "blind spots" for vehicular traffic. Loading and unloading is prohibited on public streets. a V*w *Rum by r imp /Vww FIGURE 4-4 CONCEPTUAL SCREENING OF LOADING AND STORAGE AREAS 4.2.5 Grading and Drainage • Grading and drainage shall be designed so that surface drainage and soil erosion does not flow off the BSC Specific Plan area. Treatment areas for water quality purposes, including BMPs, shall be incorporated into final plans. ■ Drainage shall be directed away from building entrances and pedestrian walks. On -site grading shall be designed to be compatible with streetscape grades. BOEING SPACE & COMMUNICATIONS GROUP - -- BOEING REALTY CORPORATION DESIGN GUIDELINES The grading concept shall be designed to avoid ramps from the public sidewalk to the site and from the parking lot to the building. Concrete swales in parking lots shall not be located in the center of the drive aisles, but should be located at the edge of the parking spaces and / or curb. 4.2.6 Utilities New building utility systems, including water, electricity, gas, sewer and storm drains shall be installed underground. Necessary above ground equipment such as back -flow preventers, transformers and irrigation controllers should be located away from the street frontage - landscaping zone. When possible, locate all meters and appurtenances in one general location. Utilities should be located in a common trench where possible and in accessible locations. Incoming utilities should be sized for possible expansion when appropriate. To provide visibility at intersections, pedestrian safety, and a high quality appearance, any necessary above ground equipment (such as double detector check assemblies, backflow preventers for the domestic water meter, and transformers) should be located behind the streetscape hedge and screened, if possible. 4.2.7 Walls and Fencing Walls, when used, should be designed as an integral part of the overall architectural or landscaping design concept. No walls are permitted along streets within landscaping setback areas, except for security purposes. Refuse enclosures should be equipped with self - closing gates. All walls should be built of materials and finishes that are compatible with adjacent buildings. Fences are not permitted in the areas to be developed except for security purposes, screening and adjacent to the LARB and water quality treatment areas. 4.2.8 People Places Forecourts to buildings should provide an introduction, adrop -off area, and a pause before guests enter buildings. The design should discourage the use of this area for lunch and coffee breaks. People gathering areas should be oriented such that they are protected from the prevailing winds and in the hot season sheltered from sun exposure. Trees, walls and overhead structures may be used for climate mitigation. Site furnishings are encouraged to provide intuitive destinations for people to sit and participate in the gathering areas. SPECIFIC PLAN * SEAL BEACH, CALIFORNIA 4-5 4.3 DESIGN GUIDELINES ARCHITECTURAL The objective of the architectural design guidelines is to establish a consistent aesthetic theme throughout the development of the. business park. Each project, however, should be responsive to the context in which it is located. All considerations should be made relevant to climate and weather conditions, as well as the existing, natural and architectural context. Individual creativity and identity are encouraged, but care must be taken to maintain design integrity and compatibility among all projects in order to establish a clear, unified image for the BSC Specific Plan area. FIGURE 4 -5 ARCHITECTURAL CONCEPT Contemporary Architectural Style The following guidelines present parameters for architectural character, building form and massing, fagades, fenestration, structure, entries, materials, colors, details, service areas and mechanical equipment for the business park. 4.3.1 Architectural Character The architectural character should be determined as the result of both the natural and architectural context of each specific site. While the architecture should respect local and regional influences, the overall result should still remain contemporary in nature. An acceptable character should remain clean and simple in a manner that is both progressive and timeless. Appropriate Treatment: • Contemporary, classic, technical style • Clean., smooth, efficient lines and forms • Distinctive, but compatible image Inappropriate Treatment: • Trendy or historical styles • Complicated, arbitrary forms • Sharp contrast with surrounding environment ■ Non - responsive to region or climate 4.3.2 Building Form and Massing The design should incorporate clean, simple, geometric forms. Whenever possible, function should be identified through the form of the structure. Similar forms should identify similar functions throughout the project. A definite sense of human scale should be incorporated through sensitive massing and forms. Compositions 46 BOEING SPACE 8 COMMUNICATIONS GROUP BOEING REALTY CORPORATION i DESIGN GUIDELINES At . ��!•� 'rJ+� '�' �.,f��` -• Mme'• Y- � A • T - ?'S'S:- •4yr�rr- .�'ry5- M -.r_ al4 v,,r. .ilt,� v .. �., - � ��v�.. .Z"r�T' •�� *ter'%. •7 �.�_ 4 �� FIGURE 46 ARCHITECTURAL CONCEPT Clean, Simple, Geometric Forms should be coordinated to produce an overall sense of unity throughout each new project. Massing should always respect both the natural and architectural context of the site. Care should be taken to transition larger forms and masses from pedestrian areas. Appropriate Treatment: • Straightforward geometry • Unified composition • Expression of structure • Expression of function and programmatic elements through form • Delineation of human scale Inappropriate Treatment: • Complicated forms ■ Arbitrary, inconsistent composition • Monolithic blocks 4.3.3 Facades/ Fenestration Building facades should reflect a coordinated design concept. Reinforcing the massing and form of each project, the facades should express building function, structure and scale. Fenestration should strive to delineate building uses while remaining sensitive to existing architectural context. Fenestration should be designed to optimize energy efficiency. SPECIFIC PLAN * SEAL BEACH, CALIFORNIA 4-7 DESIGN GUIDELINES Appropriate Treatment: • Straightforward, maintainable, functional design • Expression of structure • Unity and scale reinforced through an integrated grid module • Surface delineation through expression of reveals, mullions, recesses, and structure • Appropriate balance of wall and glazed surfaces • Functional and energy conscious use of glass and glass patterns • Shading devices and elements Inappropriate Treatment: • Arbitrary, inconsistent forms and decoration • Inappropriate decorative glass patterns • Overly exaggerated setbacks or reveals between materials 43.4 Entrances Building entrances should be clearly defined and easily recognizable. Whenever possible, entrances should be enhanced through massing and fenestration. The entry should always be an integral part of the overall composition of the building. Overhead protection as well as security should always be addressed. Entries may provide opportunities for signage, color, and accent lighting. 4-8 BOEING SPACE & COMMUNICATIONS GROUP BOEING REALTY CORPORATION DESIGN GUIDELINES Appropriate Treatment: • Articulation and color for identity and recognition • Light, open and inviting • Recessed, protected doorways • Integration with overall building form, site organization and entry sequence • Coordinated landscaping • Sensitive to regional and climatic conditions Inappropriate Treatment: • Exaggerated, overscaled forms and color • Dark, confined, or hidden entries ■ Abrupt entry sequences 4.3.5 Exterior Materials Building materials should enhance the overall form and massing of an individual structure. Materials should be appropriate for local climate conditions, easy to maintain, and appropriate for the function of the facility. The use of enriched materials should be encouraged in areas where they will provide the most visual impact. Care should be taken to choose materials that are sensitive to sustainable building objectives. Appropriate Materials: • Materials which enhance building form • Easily maintained highly durable materials • Sustainable materials • Clean, finished, and contemporary materials • Materials which are appropriate to function Inappropriate Materials: • Highly industrial materials, unless appropriate to function • False or simulated materials • Materials not suited for the environment in which they are being used • Highly reflective materials • Experimental, untested, unproven materials 4.3.6 Exterior colors Colors should be used to enhance forms and masses. Whenever possible, color should be inherent to the materials. Natural stones, concrete, and metal are encouraged to be used whenever possible. Color should always be used as an integrated design feature. SPECIFIC PLAN • SEAL BEACH, CALIFORNIA 4-9 DESIGN GUIDELINES Appropriate Treatment: • Colors which are integral to the material • Colors which enhance design features and building massing • Colors which express the regional nature of the facility • Timeless, classic color palettes Inappropriate treatments. • Garish use of color • Arbitrary patterns or stripes • Trendy colors • Primary colors 4.3.7 Mechanical Equipment All exterior mechanical equipment, including HVAC, electrical equipment, storage tanks and satellite dishes, should be screened from adjacent public streets. Whenever possible, -am" _0111� WL mechanical, screening e IL lements should be integrated Tinto the FIGURE 48 architectural composition. ARCHITECTURAL CONCEPT Technical Style Appropr�rate Treatment: • Rooftop equipment screened from off -site view by building parapet or mechanical screens • Mechanical screen fully integrated into architectural composition • Ground equipment screened by walls or landscaping, or covered in multi- stor3, projects • Screen. walls of same or similar building materials as adjacent building walls Inappropriate Treatment: • Isolated rooftop creen "hat" which is not integrated into the building form or p � g mass • Exposed rooftop equipment • Contrasting screen material 4.4 LANDSCAPE DESIGN GL]IDELINES The primary objective of the Landscape Design Guidelines is to promote a pleasing, responsive, and unified environment within the project area. All landscaping is designed to: • Promote a pleasant, distinctive, environment. • Augment internal cohesion and continuity. • Enhance the structured design concept of the project area. 4-10 BOEING SPACE A COMMUNICATIONS GROUP BOEING REALTY CORPORATION DESIGN GUIDELINES ■ Promote water conservation. Thus, the landscaping design concept is focused toward: ■ Providing a clean, contemporary visual appearance. • Coordinating the landscaping treatment along arterial and surface streets within the circulation system. • Coordinating streetscapes to unify its general appearance. ■ Coordinating on -site landscaping design continuity among individual development sites. f • • .. ors ass % -. + `-.'t aos OF IBM f r COORDINATED LANDSCAPE APPEARANCE The following guidelines present parameters for general a landsca p design, , water conservation, and on -site landscaping. 4.4.1. .Irrigation and Water Conservation Measure All landscape areas are to be provided with a complete, automatic irrigation system. This system shall conform to all requirements of the City of Seal Beach. Landscape design should consider the following conservation measures: ■ Site analysis of macro and microclimates, solar exposure, prevailing wind conditions, seasonal temperature patterns, soils and drainage, and grades and slopes. • Use of historical evapo- transpiration rates and weather station (CIMIS) data. • Use of planting zones coordinated according to plant type, climatic exposure, soil condition and slope to facilitate use of zoned irrigation systems. ■ Use of low water or California natural plant species. • Landscapes with "climate adaptive" schemes that once established can be weaned from irrigation systems or use minimal supplemental water. Invasive vegetation shall not be permitted. SPECIFIC PLATY • SEAL BEACH, CALIFORNIA 4-11 DESIGN GUIDELINES Irrigation system design should consider the following water conservation measures: • Audit of water use and certification by a licensed landscape architect of the irrigation system. • Use of "state of the art" irrigation technology to maximize efficient use of water, including multi- program electronic timers, rain shut -off devices, remote control valves, drip systems, pressure reducing valves, and matched output sprinkler heads. • Use of gate valves to isolate and shut down mainline breaks. • Designs to deeply soak the root growth zones while avoiding flow rates that exceed infiltration rate of soil. * Designs to prevent over -spray or discharge onto roadways, non - landscaped areas or adjacent properties and building surfaces. � Timing of irrigation cycles to be set at night when wind, evaporation and people activities are at a minimum. • Use of reclaimed water systems if practical and available. 4.4.2 On -Site Landscaping On -site landscaping is to be coordinated in a manner that enhances overall continuity of development in the BSC Specific Plan, while providing for the individual identity and needs of each project within. On -site landscaping shall be consistent and compatible with that for the street -side landscaping setbacks. In addition, on -site landscaping shall enhance the building environment, screen parking and service areas, and provide protection from exposure to the sun and wind. The landscape architect, when preparing concepts and designs, should consider the following: Functional Considerations: • Solar orientation of exterior areas. • Views. • Separation of functional uses and creation of exterior spaces such as courtyards for employees. • Reinforcement of the vehicular and pedestrian circulation system with plantings. • climatic mitigation of pedestrian spaces and corridors. • shelters from traffic noise and hazards. 4-12 BOEING SPACE A COMMUNICATIONS GROUP BOEING REALTY CORPORATION r. W�I �I I� Its jR uk ii 16 'All A4 At a -7 4410 a- Pi V 'All A4 At a -7 4410 a- Pi P�L b"Mm IN %v mm� ir IL I ". WWI Pir t3 X11 ®r 'b C�IF ■ 2 WM .4 iL rl ir L DESIGN GUIDELINES ■ Plant selection to maximize long -term ease of maintenance and optimize water conservation. • Plant material selections that are appropriate to the planting spaces available and the proximity to the constructed elements such as buildings, paving and walls. • Compatibility with size and type of existing planting on site or adjacent to the site. • Integration with building design. • Accommodation of future expansion. • Use of native plant material to the extent practicable. Aesthetic Considerations: • Design compatibility with the perimeter landscape concepts. • Creation of a central landscape focus in relation to the heart of the development (building entry, central courtyard, etc.). • Special lighting in public open spaces. • Use of plants and design elements for color in the landscape. 4.4.3 Project Entry The entry zone is the area between the street and the main building entry. It generally includes the on -site entry road, parking access points, visitor parking, and building entry area. The entry zone should be treated with special landscape elements, which will give individual identity to each project. The objectives of the landscape design for entry areas will be to: ■ Clarify the visitor path to the front door. ■ Establish a unique image for the development. ■ Establish a sense and a. � �+� ■� � � �. � ...��,.r.: � sr.. �■ sir, �-� :iA� 'rte AM r _ FIGURE 4=12 SHARED ENTRY CONCEPT sequence of entry from the public street to the more private realm. 4.4.4 Parking Areas The parking areas include parking spaces, drive aisles, parking aisles and other associated vehicular areas on -site. The objectives of the landscape design for parking areas will be to: ■ Communicate flow of circulation. SPECIFIC PLAN • SEAL BEACH, CALIFORNIA 4-17 DESIGN GUIDELINES ■ Visually reduce large paved areas with landscaping. ■ Maximize distribution of landscaping. ■ Create tree groves in orderly patterns establishing and organizing "parking rooms." ■ Integrate site lighting with the parking aisles and landscape. ■ Use minimum size trees and quantities for parking lots of one (1) twenty four (24"') box tree per ten (10) parking stalls. Additional trees may be planted in between stalls. 4.4.5 Building Perimeter Building perimeter landscaping will provide opportunities for a variety of design approaches, depending on parcel location and building siting. Landscape design objectives will be to: ■ Enhance the building architecture at ground level. Allow for landscape expression at the building edge. Where landscape setbacks are required, landscape areas shall be provided along the building face. 4.5 SIGNAGE AND GRAPHICS The Signage and Graphic Design Guidelines identify a framework in which advertising a place of business, providing directions or information can be accomplished without detracting from the overall design quality of the project area. The Signage and Graphic Design Guidelines also contribute to the overall project area design theme. Design, color, materials and placement are all important in creating signs that are architecturally attractive and integrated into the overall project area design. The intent is to crease and promote a quality visual environment by allowing only signs which are compatible with their surroundings and which effectively communicate their message. This section sets forth general criteria for new signs within the BSC Specific Plan area. New signs shall be designed to be architecturally compatible with the colors and materials of the adjacent building. A sign plan, consistent with these guidelines, shall be submitted in accordance with the procedures concurrent with Precise Plan 4-18 BOEING SPACE COMMUNICATIONS GROUP BOEING REALTY CORPORATION DESIGN. GUIDELINES e Y TYPICAL SIGNAGE LAYOUT sipr+ wcaecn om,*.aea 7rW' F%N%r*f 1 ■wi 1 OR1" 1 + 14 W" Dimensions of X and Y varies. X times Y is not greater than 100 sq. ft. for industrial FIGURE 4-1 4 projects and 150 sq. f �. for commercial projects. WALL SIGN LOCATION EXAMPLES SPECIFIC PLAN • SEAL BEACH, CALIFORNIA 4-19 DESIGN GUIDELINES Review, as required under Section 6.1 of the BSC Specific Plan. All new signage shall comply with the following policies: 4.5.1 Wall Signs To ensure consistency throughout the BSC Specific Plan, wall signs shall conform to the following: rN4&W-, f VA- WWI rN Dimensions of X and Y varies. X tirres Y is not greater than 10 sq.ft. FIGURE 415 ENTRY WALL SIGN • Wall signs and logos attached to the building shall be individual letters and surface mounted. • No signs shall be boxed with internal lighting and attached to the building. • Wall signs shall be located on the building for optimum visibility from the adjacent street or parking area. • Wall signs shall not exceed an area equal to one square foot for each lineal foot of building frontage. • The maximum sign size for a building facade adjacent to a street or parking area shall be one - hundred (100) square feet for office and industrial projects, one - hundred (150) square feet for commercial projects. 4-20 BOEING SPACE A COMMUNICATIONS GROUP BOEING REALTY CORPORATION DESIGN GUIDELINES TABLE A FREESTANDING- SIGN CHART Land Use Maximum Maximum Area Number Per Sign Face TABLE 1 WALL SIGN CHART Commercial Land Use Maxunum Maximum other Multi-tenant Number Area Per Sign Commercial 1/Building face 150 sq. ft. Below roof line Raceways not Office 1 /Bu siness 100 sq. ft. permitted Business Park l /building permitted Channel letters 7 ft. Multi -- tenant and Office Business Park 2/Business/street 100 sq. ft. only fronts e TABLE A FREESTANDING- SIGN CHART Land Use Maximum Maximum Area Number Per Sign Face Maximum Other Height Commercial 1/250 ft. 100 sq. ft. 7 ft. Multi-tenant panels are permitted Business Park l /building 50 sq. ft. 7 ft. Multi -- tenant and Office panels are permitted NOTE: (1) Entry signs, information /directional signs and temporary signs are subject to separate regulations. (2) Existing signs within the BSC campus are deemed permitted and may also be relocated or modified. SPECIFIC PLAN • SEAL BEACH, CALIFORNIA 4-21 DESIGN GUIDELINES e Wall signs shall be internally illuminated or non - illuminated. Wall signs shall be limited for secondary tenants to a maximum of one (1) sign per tenant. In no event shall there be more than four (4) secondary wall signs permitted per building and no more than two (2) per building elevation. 4.5.2 Freestanding signs Buildings may have freestanding signs for project identification subject to the following policies: Freestanding signs for business identification shall be limited to perimeter locations adjacent to existing arterials and shall be of a monument design. These signs shall not exceed seven (7) feet in height, as measured from the adjacent grade, and not more than fifty (50) square feet in area for industrial and office uses and one hundred (100) square feet for commercial uses. FIGURE 416 FREESTANDING BUSINESS IDENTIFICATION SIGN • Freestanding signs for tenant identification may be installed within or adjacent to a private entry driveway. Entry signs shall be located and sized to not interfere with vehicular visibility and / or movement. Entry signs shall be limited to thirty -two (32) square feet and shall not exceed four (4) feet in height. Entry signs may be placed on a berm not exceeding eighteen (18) inches in height. Entry signs shall include the building address. 4-22 BOEING SPACE B COMMUNICATIONS GROUP BOEING REALTY CORPDRArIGN DESIGN GUIDELINES ` ._. 4' M$xrtum HQighi )L�o "I it f f IT li ELAMUM &M ground #kv to top of ern FIGURE 417 FREESTANDING TENANT IDENTIFICATION SIGN • Center identification signs may also be installed at key intersections, in landscaped areas within the right- of -way or landscaped street medians. Center identification signs shall be limited to thirty -two (32) square feet and shall not exceed four (4) feet in vertical height, and shall only identify the overall business park. FIGURE 418 SIDE 8 MEDIAN ENTRY SIGN LOCATIONS • All freestanding signs shall be of a monument design, including: business identification, business directory, and information/ directional identification signs. Street side signs, at access driveways, shall be used to identify CL budding address /tenant, and to direct traffic to that building. Freestanding signs may be illuminated using City- approved directional lighting. SPECIFIC PLAN * SEAL BEACH, CALIFORNIA 4-23 DESIGNS GUIDELINES 4.3.3 Business Directory and Information Signs Business Directory and Information Signs are permitted subject to the following policies: Business directory signs that are freestanding shall be located near the primary entry and access drive. These signs shall be limited to identifying the building address and tenants, and shall be visible from the intersection of a private driveway and an adjacent street. These signs shall not be allowed elsewhere within the landscape setback area or along street frontages. Maim } mhaght 3 FIGURE 449 Ci�ound Lme FIGURE 4-20 in heow 'F BUSINESS DIRECTORY INFORMATIONAWDIRECTIONAL SIGN SIGN Business directory signs shall not exceed a maximum area of twelve (12) square feet per face, may be double faced adjacent to a street front and single faced adjacent to a building, and shall not exceed three (3) feet in vertical height. Signs shall be limited to one sign per building. More than one building address and tenant may be identified on one sign. Signs shall be consistent with the overall building architecture. Information/ directional signs shall be used to provide direction to on -site automobile traffic or pedestrians and shall not be visible from off -site areas. Informational /directional signs shall be limited to six (6) square feet per face, double faced. These signs shall not exceed three (3) feet in vertical height. • Informational /directional signs shall be limited to the identification of function and /or service and shall not contain the name of the business, company or corporation providing the function and /or service. When appropriate, such signs shall contain a directional arrow and provide direction to functions and / or services or information such as Authorized Vehicles Only, Handicapped Parking Only, and Loading Zone. 4-24 BOEING SPACE A COMMUNICATIONS GROUP - - -- -- BOEING REALTY CORPORATION DESIGN GUIDELINES 4.5.4 Temporary Signs Temporary signs are permitted subject to the following policies: Temporary signs shall be allowed to provide information and facilitate information during the construction and marketing process. Such signs shall be limited to one per lot, with a maximum of thirty -two (32) square feet and seven (7) feet in overall height. Temporary directory signs shall be permitted on construction sites, and limited to one (1) for all contractors. The sign shall not exceed thirty -two (32) square feet, unless legally required by government contracts to be larger. The sign shall not exceed seven (7) feet in overall height and shall be located no less than ten (10) feet from any property line. These signs shall be removed upon completion of the project. FIGURE 4,21 TEMPORARY SIGN Future tenant signs may be placed on vacant or developing property to advertise the future use of the property and where further information may be obtained. Such signs shall be limited to one per street frontage and to a maximum of thirty -two (32) square feet in area and seven (7) feet in overall height. These signs shall be placed no less than ten (10) feet from the property line. Any such sign shall be removed upon occupancy of the project. 4.6 SITE LIGHTING GUIDELINES Lighting is intended to create a nighttime character that reinforces the image of the BSC Specific Plan as a quality business location. All exterior lighting is to be generally consistent in height, spacing, color and type of fixture throughout the BSC Specific Plan area. Exterior lighting is to be provided to enhance the safety and security of motorists, pedestrians and cyclists. Exterior lighting includes lighting for parking areas, vehicular and pedestrian circulation, building exterior, service areas, landscaping, security and special effects. SPECIFIC PLAN • SEAL BEACH, CALIFORNIA 4-25 DESIGN GUIDELINES 4.6.1 General On -Site Lighting Parameters Lighting shall meet all requirements of the City of Seal Beach. The following elements should be considered: • All exterior on -site lighting should be shielded and confined within site boundaries. No direct rays are permitted to shine onto public streets or adjacent lots. Lights mounted to the roof parapet are not permitted. Wall- mounted light fixtures used to illuminate parking lots are not permitted. Lighting shall create a sequence of varying illumination levels leading up to the building entrance. This would include the orchestration of light from parking lighting, to pedestrian lighting, special feature lighting, and lighting from within. 4.6.2 Vehicular Circulation and Parking Area Lighting All vehicular circulation and parking lot lighting should have zero cut -off fixtures (i.e. lens is not visible from an angle). Pole height should he as follows: Vehicular Circulation: twenty -five (25') feet maximum Parking Area :twenty (20') feet maximum 4.6.3 Pedestrian Lighting Pedestrian walkways and building entries should be illuminated to provide for pedestrian orientation and to clearly identify a secure route between parking areas and points of entry to the building. Walkway lighting should have zero cut -off fixtures mounted at a uniform height no more than sixteen (16') feet above the walkway. Building entries may be lit with soffit, bollard, step or comparable lighting. Step or bollard lighting should be used to clearly illuminate level changes and handrails for stairs and ramps. Courtyards, arcades and seating areas should be lighted to promote pedestrian use and safety. A variety of lighting may be used to create interest and special effects in coordination with the character and function of the area. • Pedestrian lighting shall be subdued warm -white mercury or incandescent lamps. 4-26 BOEING SPACE A COMMUNICATIONS GROUP BOEING REALTY CORPORATION DESIGN GUIDELINES 4.6.4 Security Area Lighting Service area and security lighting should be visible only within the limits of the service area. Wall- mounted, security -type, service area lighting fixtures may be used only in screened service areas and only if direct lighting and glare is kept within these areas. In all other areas, wall- mounted service lighting should consist of cut- off type fixtures. Service area and security lighting may not be substituted for pedestrian, architectural or parking area lighting. 4.6.5 Accent Lighting Unique lighting may be used to feature architectural elements, landscaping, entries and pedestrian areas, provided it is compatible with all other lighting. Accent lighting used in landscaping and pedestrian areas should employ light sources such as metal halide, quartz or mercury lamps in order to accurately render plants and lawn colors. 4.6.6 Architectural Lighting All exterior architectural lighting should utilize indirect or hidden lighting sources. Acceptable lighting includes wall washing, overhead down lighting and interior lighting that spills outside. Entry areas should be lit so as to provide an inviting glow from the interior. Boeing RaattY Corp on SPECIFIC PLAN • SEAL BEACH, CALIFORNIA 4-27 Boeing Realty Corporation �BOE /NG SECTION FIVE DEVELOPMENTREGULATIONS 511 PURPOSE AND INTENT hese regulations are the standards for development within the BSC Specific IN F Plan area and will act as the controlling mechanism in implementing development. Implementation of the provisions set forth in this section will ensure that the project will proceed in a coordinated manner, consistent with the goals and policies of the BSC Specific Plan and the City of Seal Beach General Plan, as implemented by this document. The regulations are pursuant to Article 8, Authority and Scope of Specific Plans of the Planning and Zoning Law of the Government Code and are in compliance with the provisions of Sections 65450 of the Government Code, and Chapter 28, Article 29.5 of the Code of the City of Seal Beach. 5.2 DEVELOPMENT REGULATIONS POLICIES The following policies shall apply to all developments and land uses within the BSC Specific Plan: 5.2.1 Unless otherwise specified, all development within the BSC Specific Plan area shall comply with the Code of the City of Seal Beach. Terms used herein shall have the same meaning as defined in the Code of the City of Seal Beach unless otherwise defined herein. 5.2.2 Any standards, uses, details or issues not specifically covered by the BSC Specific Plan shall be subject to the regulations of the Code of the City of Seal Beach. Wherever there is inconsistency between the development standards of the Code of the City of Seal Beach and the development standards of the BSC Specific Plan, those in the Specific Plan shall control, pursuant to Section 28 -1702 of the Code of the City of Seal Beach. 5.2.3 Development standards, regulations and procedures in the BSC Specific Plan that reference the Code of the City of Seal Beach shall be those in effect on the date the application for Vesting Tentative Tract Map 16375 has been determined to be complete pursuant to Section 65943 of the Government Code. 5.2.4 Whenever a use has not been specifically listed as being a permitted use in a particular Planning Area of the Specific Plan, it shall be the duty of the Director of Development Services to determine if the use is consistent with the intent of this Specific Plan and compatible with other permitted uses. The SPECIFIC PLAN v SEAL BEACH, CALIFORNIA 5-1 DEVELoPMENr REGULATIONS applicant and / or the Director of Development Services may request that the Planning Commission make the final determination. 5.2.5 Permitted land uses also include accessory buildings and uses that are customarily incidental to, and located on the same site with, the main building. 5.2.6 The Director of Development Services may determine that other conditional uses not specifically identified are conditionally permitted uses. The applicant and / or the Director of Development Services may request that the Planning Commission make the final determination. The conditional use permit process is described in Section 6.2. 5.2.7 All construction within the boundaries of the BSC Specific Plan shall comply with the provisions of the Uniform Building Code and the various mechanical, electrical and plumbing codes adopted and locally modified by the City of Seal Beach, as established by Section 5 of the Code of the City of Seal Beach. 5.2.8 If any regulation, condition, program or portion thereof of this Specific Plan is for any reason held invalid or unconstitutional by any court of competent jurisdiction, such portion shall be deemed a separate, distinct and independent provision and the invalidity of such provision shall not affect the validity of the remaining provisions hereof. 5.2.9 An EIR (02 -1) which analyzes the worst -case situation for the cumulative impacts of physical development as proposed by the Specific Plan has been certified by the City Council and is referenced hereby. 5.2. 10 Request for expansion and / or new construction of Boeing Space & Communications buildings and facilities within Planning Area 1 for BSC- related uses shall be regulated by the Precise Plan Review process as described in Section 6.1. 5.2.11 Planning Area 4 is planned for commercial lodging and retail land uses that provide commercial and visitor - serving services. For these uses, PA-4 is regulated by design guidelines, development regulations and requirements identified for Planning Area 4. If, after 18 months from the adoption of the BSC Specific Plan, such lodging and commercial land uses are determined infeasible, this Planning Area may be developed with business park land uses. 5.2.12 Temporary buildings required for BSC uses shall be permitted subject to review and approval by the Department of Development Services under the Precise Plan Review process as described in Section 6.1. 5-2 BOEING SPACE B COMMUNICATIONS GROUP BOEING REALTY CORPORATION DEVELOPMENT NT REG ULA TI OINS 5.2.13 All structures, facilities and uses in existence within the Specific Plan area at the time of adoption of the Specific Plan shall be deemed to be in conformance with the development regulations, land use plan, public facilities and services plans, design guidelines and other applicable provisions of this Specific Plan. 5.2.14 The overall intensity for the Specific Plan area has been established with a maximum Floor Area Ratio (F.A.R.) The F.A.R. for each Planning Area is identified in Table 5 -2. 5.2.15 F.A.R. is defined as the ratio between the amount of gross floor area permitted to be constructed on a legal building lot and the size of the lot. In computing gross floor area of a building, the gross area confined within the exterior walls of the building shall be considered as the floor area of each floor of the building. This includes space devoted to hallways, stairwells, elevator shafts, lobbies, light courts and basement storage. Gross floor area does not include covered parking floor space with necessary interior driveways and ramps thereto, space within a roof structure or penthouse for the housing of equipment or machinery incidental to the operation of the building, and space for loading and storage of helicopters. 5.2.16 Large -lot subdivision, for the purpose of financing or conveyance, may be approved provided the Subdivision Map related thereto includes a declaration that the lots created are not building sites. Installation or bonding of infrastructure improvements shall not be made a condition of approval of a large -lot subdivision unless for financing or conveyance purposes infrastructure improvements are necessary to provide required street frontage access. 5.2.17 Permits and approvals required from other agencies may necessitate revisions, adjustments and / or amendments to the BSC Specific Plan. The City of Seal Beach shall not unreasonably withhold approval of any revision, adjustment or amendment that is mandated by conditions of approval imposed by any other governmental agency. 5.4 PAMNG All developments will be required to meet the minimum parking standards as established by the City of Seal Beach Municipal Code. In addition, the following parking standards outlined on the page 5 -4 shall apply: SPECIFIC PLAN • SEAL BEACH, CALIFORNIA 5"3 DEVELOPMENT REGULATIONS 1. Standard parking stall size shall be nine (9) feet wide by nineteen (19) feet deep in Planning Areas 1, 2 and 3. In Planning Area 4, standard parking stalls shall be (9) feet wide by twenty (20) feet deep. Parking stalls may be reduced to provide a wheel stop at seventeen (17) feet and eighteen (18) feet, respectively, with a two (2) foot overhang to expand the landscaping. This additional landscape area will not be credited toward the required landscape percentage. 2. A compact parking stall size of eight feet zero inches (8' -0 ") wide by seventeen (17) feet deep may be proposed for up to a maximum of twenty five (25) percent of the total required parking spaces in each Planning Area. 3. Shared parking maybe permitted for combined office, research and development, commercial and industrial uses. A shared parking program may allow for a reduction of required parking by up to twenty five (25) percent, based upon a shared parking analysis. Shared off-site parking facilities may also be permitted for adjacent office and industrial uses. A shared parking program may be approved under the provisions of the Conditional Use Permit process as described in Section 6.2. 4. Handicapped accessible parking spaces shall be provided as required by law. 5. Any existing BSc required surface parking in Planning Area 1 removed for new development, shall be replaced on a one for one basis concurrent with such new development. If new development requires a greater number of parking spaces, the increase shall also be provided. 6. The parking standards for self- storage uses are not defined in the City of Seal Beach Municipal Code. Parking standards for this use shall be 1 space per 10,000 square feet. 5.3 DEVELOPMENT STANDARDS The development standards for the BSC Specific Plan are established to provide a quality business park in conjunction with the potential for hotel and commercial uses, within the context of existing BSC operations and facilities. All Planning Areas are permitted to be developed with business park land uses. However, PA-4 provides additional flexibility for commercial uses, including hotel, retail, restaurant, and other commercial land uses. The permitted and conditionally permitted land uses are in Table 5 -1. Table 5 -2 identifies the development standards for each Planning Area. 54 BOEING SPACE A COMMUNICATIONS GROUP BOEING REALTY CORPORATION DEVELOPMENT REGULATIONS BUSINESS PARK Boeing Space & Communications, including all existing buildings, facilities and operations, and associated governmental facilities PLANNING AREA - w .�. y� ­4 F .. .� .s..'r j ..V r' v' Manufacturing N/ N/ N/ Warehousing and Distribution N/ N/ N( N( Light Industrial Conference facilities N/ Research and Develo ment d Vf V, N( Point of Sale Industrial/Manufacturin I?': _- �. � - _ •_ N/ N V, ._ a:' +\ Self Storage Facilities (indoor) Restaurants offering drive -in service, outdoor dining and/or entertainment Laboratories N( N( Nf N( Communication Facilities offices N( V( Parking Structures N/ N �.�.:ds� ".✓• 1} '1y,�•'�.� �Y �:.'L.��.•�w.•�: _- _•►.?"_r)."'•.- ..l�i�.lY'r'ti,� .:���•`• -• ,..:iyrrt� °'�,•'rs�� -� `•(.f�.�:,����'� •�i�,y ;- y3`ti- �.••..�4r". .^rt•:�►` :�'.i� . - • -: i�-.� _`r..,. '+e r ►�.�'. ... w ...... .- � . -. -- r ' rte. •.�. ..r�±� -i: �. '+'!(;�- _ �`:� '"T .. ..�. _ -•ti. �ti.:. . �.I•• -.�"". . «t_'�' _ T':�'4A'� -- �.i COMMERCIAL PLANNING AREA - w .�. y� ­4 F .. .� .s..'r j ..V r' Heli rts, Maintenanee and Service Facilities Banks and other Financial Institutions Automobile service center N( Prescription Pharmacies F ae skating, ice hockey, gymnasium, and other similar cili ties fors ports related activities N( Restaurants Conference facilities N( Hotels and Motels (with or without conference facilities) Restaurant V, N( General Retail and Commercial Services -r � .. :. w•�!- •him .. _.rli't-a �►7C:... .. r.'- w -ryy .. _. s^.T. .+� i - r �A'Y.- �. ~:1.r- f�tiT +. ��i.:.� f!'_f� r . r,F �w�' n ... �.._: I?': _- �. � - _ •_ -.c L::•. T �W.._ +�.'ii y' V, ._ a:' +\ USES SUBJECT TO A CONDITIONAL USE PERIN-11T •• kC r ..'¢. .ry: -. �. .: L� - ". '.+r'.y .v4 >.r = `JI.�.� •�(.y •' 1 %5 .•F : . -:s F.. LA ;iI SE •mow? r�•iry •`.• :.:r �,E •,;,4 -'•� " ^ ■- .• •_ . e•, .'•' PLANNING AREA - w .�. y� ­4 F .. .� .s..'r j ..V r' Heli rts, Maintenanee and Service Facilities Automobile service center F ae skating, ice hockey, gymnasium, and other similar cili ties fors ports related activities Conference facilities Restaurant V, N( N( On-sale and off-sale liquor establishments Restaurants offering drive -in service, outdoor dining and/or entertainment Commercial /retail services with drive-in service offices Parking structure Retail uses associated with warehouse /showroom Nur Z : (1) Se it-storage is a per muted land use only wi thin P laming Area 3 on lot 6 of Vesting Tentad ve Tract Map 15375. (2) Automo 6 v sery ice center is a conditionally permitted land use only within Planni ng Area 3 on i of 6 of Vesti ng Tentati ve Tract Map 16375. (3) B usiness park land uses are perfni tted within Pl anning Area 4 eighteen I 8) =nt hs after a doption of this Specific Plan. SPECIFIC PLATY • SEAL BEACH, CALIFORNIA 5-5 DEVELOPMENT REGULATIONS TABLE 5-2 DEVEI.,OPMENT STANDARDS STANDARDS PL G AREA r _ 1 2 =3 4 Minimum Lot Size ( . ft.) 10,000 10,000 10,000 7,000 Minimum Lot Depth/Width 100'1104' 100'1100' 104'1100' 140'170' Maximum Building Height, Main Building [10 acres or larger site) ?Maximum Building Height (less than 10 acre site) 75" 409* 75' 40' * 75" 40'* NIA 40'* Maximum Intensi (F.A.R.) 0.75 0.60 0.60 0.65 Maximum Lot Coverage 70% 70% 70% 60% Minimum Setback Front 25" 25' 25" 15' Interior Side 10' 10' 10' 15' Exterior Side 15' 15' 15' 15' Rear 10' 10' 10' 15' Adjacent to Westminster Avenue/ Seal Beach Boulevard 35" 35' 3 5' 35' Minimum Landscape 10% 10% 10% 10° /a Minimum Perimeter Landscape Front 15' 15' 15' 10' Interior Side 5' 5' 5' 5' Exterior Side street side) 10' 10' 10' 10' Interior Rear 5' 5' 5' 5' * NOTE: Architectural projections and screening of mechanical equipment are permitted. These features shall not exceed seven (7) additional feet. Boeing Beatty Corp os 5-6 BOEING SPACE & COMMUNICATIONS GROUP BOEING REALTY CORPORATION Boeing Realty Corporation �BOE /AEG" SECTION SIX IMPLEMENTATION PROCEDURES 6.1 PRECISE PLANS IFhe BSC Specific Plan shall be implemented through the use of Precise Plans. Precise Plans establish development guidelines for proposed structures or improvements for each planning area within the Specific Plan for the following reasons: 1. To ensure consistency with the adopted BSC Specific Plan. 2. To encourage continuity in design and development. 3. To promote the highest contemporary standards of site design. 4. To assure substantial long range compliance with the City of Seal Beach General Plan. Procedures for review of Precise Plans shall be in accordance with the provisions of Article 29 of Section 28 -2900 through Section 28 -2910 of the Code of the City of Seal Beach, as established by Ordinance 948. Exceptions are noted below: 1. The fee for the Precise Plan review shall be in accordance with the current comprehensive fee resolution of the City of Seal Beach. Additional funds may need to be deposited with the City of Seal Beach at he request of the Director of Development Services. This may be required to ensure full cost recovery of City services in reviewing Precise Plans and other discretionary land use requests. 2. Along with the supplemental requirements of Article 29, Section 28- 2903, at the request of the Director of Development Services, the developer shall submit: a) A preliminary landscape plan, addressing streetscape and project landscaping themes, including proposed size and quantities of all proposed landscape materials. b) Architectural elevations and floor plans drawn to scale, including samples of exterior materials and textures. SPECIFIC PLAN • SEAL BEACH, CALIFORNIA G-� isk IMPLEMENTATION PROCEDURES c) Detailing of exterior hardscape materials and textures. d) Precise sign plan locations, size, colors and letter type of all proposed signage. e) Preliminary grading plan, showing areas of cut and fill, location and elevation of all pads, and height of cut and fill. f) Such other information as may be needed and deemed appropriate by the Department of Development Services (e.g., traffic studies, noise studies, water quality management plans, etc.). Precise Plans shall be required prior to obtaining building permits for all Planning Areas within the BSC Specific Plan. Precise Plans shall be processed concurrent with discretionary approvals to the greatest extent practicable. Authority for approval of Precise Plans shall rest with the Director of Development Services pursuant to Article 29, Section 28 -2904, et seq. FIGURE 6 =1 CONCEPTUAL LANDSCAPE PLAN DETAIL Precise Plan approval, in accordance with this policy, shall be valid for a period of two (2) years.. If construction of a project does not commence within that time period and proceed with due diligence thereafter, the Director of Development Services may grant a time extension of up to two years. If, after 4 years construction does not commence, the approval of the Precise Plan shall terminate and additional review and approval will be required. In the event of litigation, time periods for approval shall be tolled for the period of time litigation is in existence. Precise Plan revisions that are minor in nature will be reviewed and approved by the Director of Development Services. CONDITIONAL USES AND VARIANCES Applications for all conditional use permits within and variances from the BSC Specific Plan shall be prepared and processed in accordance with Article 25 of the City of Seal Beach Municipal Code. 6 -2 BOEING SPACE & COMMUNICATIONS GROUP BOEING REAL'T'Y CORPORATION IMPLEMENrA r1ON PROCEDURES 63 SUBDIVISION MAP FILING AND REVIEW PROCEDURES All subdivisions within the BSC Specific Plan must comply with Chapter 21 of the City of Seal Beach Municipal Code and the State of California Subdivision Map Act. 6.4 SPECIFIC PLAN REVISIONS AND ADJUSTMENTS 6.4.1 Administrative Revisions Revisions to the Specific Plan which serve to implement the intent of the Specific Plan are permitted through the administrative revision process. This section grants authority to the Director of Development Services or designee to administratively act on requests for administrative revisions to implement the Specific Plan. The developer has the right to appeal the decision of the Director of Development Services to the Planning Commission within 15 days of any such action. The administrative revision process will serve both the public and Specific Plan community in that it will: 1. Minimize City staff, Planning Commission and City Council time spent on minor technical refinements. 2. Set criteria that will clearly distinguish an administrative revision from a Specific Plan Amendment. The following types of revisions are permissible through the administrative revision process: ❑ The addition of information to the exhibits or text which serve to clarify, but do not change, its meaning or intent. ❑ Modifications to the alignment of the Planning Area boundaries to coincide with specific development plans, as recommended by the Director of Development Services. All administrative revisions are to be reviewed for compliance with the purpose, intent and objectives of the BSC Specific Plan. 6.4.2 Administrative Adjustments Minor adjustments to development standards that constitute a reasonable use of property and do not endanger the public health, safety or welfare are permitted through the administrative process. This section grants authority to the Director of Development Services or designee to administratively act on requests for such minor adjustments. Administrative adjustments may allow the following: SPECIFIC PLAN • SEAL BEACH, CALIFORNIA 6.3 IMPLEMENTATION PROCEDURES 1. A decrease of not more than 10 percent of any required building setback. 2. A decrease in not more than 10% of the required parking spaces, with a parking study approved by the Director of Development Services or designee. 3. Zero -lot line development for interior side and interior rear yards. 605 SPECIFIC PLAN AMENDMENTS The procedures for amending the BSC Specific Plan will be in accordance with Government Code Section 65453 and Article 29.5 of Chapter 28 of the Seal Beach Municipal Code. Prior to approving any amendment to the BSC Specific Plan, the City Council shall make the following findings: 1. The amendment is compatible with the purpose, intent, spirit and goals of the BSC Specific Plan. 2. The amendment is consistent with the City of Seal Beach General Plan. 3. The amendment is consistent with the City of Seal Beach Local Coastal Plan, as certified by the California Coastal Commission (if applicable). 4. The amendment is compatible with adjacent land uses. 6.6 FINANCING In order for the project to be fiscally self- sufficient, the following options can be considered for implementation: 1. Alighting and landscape district can be implemented in order to defray the costs associated with street maintenance and street light costs. Additionally, a variety of other financing options can be considered by the City of Seal Beach for financing facilities and services to be provided within the BSC Specific Plan. These include: &4 BOEING SPACE A COMMUNICATIONS CATIONS GROUP BOEING REALTY CORPORATION IMPLEMENTATION PROCEDURES 1. Establishment of a Mello -Roos Community Facilities District, which enables governmental entities to finance public infrastructure on a tax -- exempt basis. 2. Special assessment districts. 3. Benefit assessment financing (generally reserved for drainage, flood control and street lighting). 4. Integrated financing districts (i.e. landowner assessments that are contingent upon development). All special district financing mechanisms must have approval of the City Council prior to adoption. As conceived, establishment of a district would enable the City to levy a special tax and to issue bonds for the financing of the improvements and services. Among the facilities that potentially could be financed are flood control, drainage and utilities, street improvements, other infrastructure and related facilities. The district provisions for those services would cover all phases, including planning, design, acquisition, construction, operations and maintenance. These assessments would only affect the BSC Specific Plan area. Boeing Space & Communications and / or other landowners within the Specific Plan area will retire the debt incurred. BOelng C0noMtloi SPECIFIC PLAN = SEAL BEACH, CALIFORNIA 6-5 BOEING SPACE & COMMUNICATIONS GROUP SPECIFIC PLAN SEAL BEACH SITE Boeing Rea Ity Corporation Q� AVOE /AEG m C'- www.boein &.com - .- mnrnir�nnnu r.r+ - i i n i � �i.rirr� I Sol I Public Health and Safety Letters FRA M G a July 31, 1330 V, P. Dash Rockwell P.O.BOX 2515 Seal Beach. CA 90740 HEALTH CARE AGENCY PUBLIC HEALTH SERVICES ENVIRONMENTAL HEALTH DIVISION 2009 E. EDINGER AVENUE SANTA ANA, CALIFORNIA 92705 (714) 667 -3700 TOM Ur DIREC L. REX EHLING, HEALTH OFF ENVIRONMENTAL HEALTH DIV] ROBERT E. MERRYMAN, REHS - DEPUTY DIREC MAILING ADDRESS: P.O. Bo: SANTA ANA, CA C Subject: Remedial Action At Rockwell, 2201 Seal Beach Boulevard, Seal Beach, CA 90740 - O.C.H.C.A. vase #90UT36 Dear Mr. Dosh: This letter confirms the completion of site investigation and remedial action at the above site. With the provision that the information provided to this Agency was accurate and representative of existing conditions, it is the position of this office that no further action is required at this time. Please be advised that this letter does not relieve you of any liability under the California Health and Safety code or water Code for past, present, or future operations at the site. Nor does it relieve you of the responsi- bility to clean up existing, additional or previously unidentified condi- tions at the site which cause or threaten to cause pollution or nuisance or otherwise pose a threat to water quality or public health. Additionally, be advised that changes in the present or proposed use of the site may require further site characterization and mitigation activity. It is the property owner's responsibility to notify this Agency of any changes in report content, future contamination findings, or site usage. If you have any questions regarding this matter, please contact Dave Woelfel at ( 714) 667 - -363610 Ve truly yours, r Livio F. Davanzo, PH.D., R.E.A. Program Manager Hazardous Materials management Section Environmental Health Division LFD:DW:gmj 1 ti rfr►f!.��, :� " J December 27, 1994 Tommy Jennings Rockwell International 2600 Westminster Blvd. Seal Beach, CA 90740 HEALTH CARE AGENCY PUBLIC HEALTH SERVICES ENVIRONMENTAL HEALTH DIVISION 2009 E. EDINGER AVENUE SANTA ANA, CALIFORNIA 92705 (71 4) 567 -3700 Subject: Underground Storage Tank (UST) Case Closure Re: Rockwell International Building 82 2600 Westminster Blvd. Seal Beach, CA 90740 o.C.H.C.A. Case #94UT28 Dear Mr. Jennings: �..' HUGH F. ,, V LLWORTH. M.D. ' •- _ENVIRONMENTAL HEALTH DIVISION ROBERT E. MERRYMAN, REHS. MFy 3EPUT'; DIRE :TOR This letter Confirms the completion of site investigation and remedial action for the underground storage tanks at the above site. Thank you for your cooperation throughout this investigation. With the provision that the information provided to this Agency was accurate and �-et res xFntative of s ;�e con," Lions, no f �rther action related to the und��rgrr�und tank release is required based on the availa -ble information as set forth in the California Code of Regulations, Title 23, Division 3, Chapter lb, Article 11, Section 2721 (e) (Underground Storage Tank Corrective Action Regulations). If you have any questions regarding this matter, please telephone David G. Woelfel at Very truly yours I If o It E. Merrym , R S, MPH, Director Environmental Health Division REM :D 3W:vrp cc: Mike Harper, State Water Resources Control Board (Attachment) Carl. Bernhardt. Santa Ana Regional Water Quality Control Board (Attachment) Orange County Fire Department Dc;,,ir Ms. - B ochm: TOM URAM HUGH E SULL"M NX, "g, MPH ROOME MaWMW Of DENTY M-;GTOA 20D� SAST Ma RAkIVENIUE SIT A ANA, CA 92-m5-.%'*3"�zv 7EUPKNE f7l k) ;5547:­MO� FAX: 1.71 th: ' -t A moval This is in re-sponse to VO'Ur'request -f -or a confumat'on of the comp I e a re )eflon of P-les, obt " n d during he- tank re moval: roject. Wi R s I t th the provision that the results for the fol Al e P on Oct ob er 9, were amurate and representative of existing condi *ons, L "S the Position of thiS t 996 off"ice that n, -o st gnifitcan ::: -soil Contam*na_tjio,,n has occurred at the above noted facility location. It should, lie pointed out that this Jeft'r. does not re 11"eve VOU of any respops,-i-bilityes man: aLed'under the Cali fornia Heal th and Safety Code if addlitional or Pre-Viousiv ti,-n-ide-titi-fied c,ontamination _I*s d1scovered at the subject site* .If yoti haw e cm y 4tiestions regarding this matter,, please contact David G. _Woelfel- -at (714.) 6 36'�'6, 'V q truly your"S', W''11.11'am J,.'Dickm.ann,:.R.,E..'H.S..,',M,.S.. % 'sin, mrl e, Hazzvdous Waste Spe yal"st Hazardous Maten"'als, M.M.ma.pment Section Environmental Health D'I'VISIO-11 2. 2, 1996 Theresa Boehm oilal Sca] .Be ach, A.9 7` 0 -82 HEALTH CARS AGENCY' PUBLIC HEALTH SERVICES -ENVIRONMENTAL: -8 ..EALTH: DIVISION 2Wg.:E, EDINGER AVENUE SAN1`A ANA. CALIFORNIA 02705 X71 4 -6-67W S,4ubjccly 'Remedial w Completion Certificati-on Re: Underg-rouildSt.oraoe Tank- fUST Cas:e R-ock-well TnteMa.tion-id 42600, Sttn1_n-1Ste::r, Blvd. Se,,] _-_Bcach, A. O.CJI.C.A. i�as.e#871`71 Dear Ms. Bochm,,:, TOM. URAM. VIRECTOA HUGH F. STALLWO SIN , M&D HEALTH: OFFiCEA ENWFIORmENTAL HEALTH DIMON ROBERT E* PASRAYWN, RESS, MPH DEPUTY -DwECToR as le-iter confirms. thei complet'on otsitc invest'.9afion. and r -mc.dial -action for the underer-ound storage. t-ank .e -ax ve- pill, -ardini th f(Arm, erl�� loewed attilic �-i-bove.-descr'lbed.loc-atii)n. Enclosed 'is the Case Closti-re Summary. ce b- r rckrencea site for .. -our record-sm, ion LhL -h I the currcnt land use d w'th the Bawd it Pon [:be. i*CVka i.11%1&bl in a-tion 11 itic] udin an-, I _r -s �t u e *n.f 9 n, ovi. p i Aiacn�cv was accurate.md.: provkh-2 I to -hk ct re- n a A'on I -a ed to the Alsw pms;e j,-ve of site conditions, no fartherac I re t Und, rtclroupu S il -a n r,.ejc, as.c. is rc. Quiread., Reswiations.., DfiJ 'on 3, ed'n Thle `13, C'ah forn "a :Code of I Isi ThIS notict'! I.S----,Ued pursuanc. tt Ulu , - tion contain Chapter .1, 0'.. -Sc ti 1 1Z fe., I if bmi n land use ()w. . .11 ispr posed the ne Agency* di his ii-i at Aw liavi% -any questioils rl.Alv please ti�, d (effiel (71,4) 667-.3636 &v V.1c0hou Davi.(,W) Siric S PHt D� Rob;ej,t:F,:.N-.4c,r. .-Iiimit RE S1 ifector S-1 F. n i r o: i i i i elmal lie-a.dt.h.-DiA 0-n.. R L­\J1:DGW,M-iJ Attar --iinent CC** Ca BcmhiwdE. Santa Anzi .sec cTonal eater Qua -Control B 1. V 0aw Mike H r, State Water R Control Board L liealthD' IvistOn 0 wormienial He afth Divls;' Karen'LM d-cl, Env' 1:011 in a 4 0. 'd In-PIac--eAemwvcd? .... .. ....... ...... Aso . ...... . . ......... ov — -�' 94 ...................... ------- .. ...... ... T E ...... ....... ........... . . and Site Cha"racteri"zation Inf mat go, -MAIIAROAR—il .................. ... ------ . . . . ... . ... ....... - ton - - ------- ---- 0. .. ........ - g� auw :.. e eleaw" hole .W � -041 . ....... .... . . .................... --- ---- Site c e on °' Date approved y oversight agency. 12-27-:95 Monftodng Wells metage Y N=ber, 2 .. ............ . .8 ope $. # eene i. t , v 3 Yes Highest GW depth .CGS. ..3 Lowest depth. 19,E Flow direcfiokn� � supply Sens"IM Curt -t U Are dnir&k5 g ate - ffKte 8 3 ?rA I name--, +g t t ......... {{�xg �r �`k e e ene ii.r I use impacts sses'l .�a � .w . .: c Yes c _. Where is report .Treatment and deposal Affected .. ... ....... .... . '6" MOIL'J � .: $��' : e U 3 8:# 3 . . ........... ter. . bA 'k' Tank ....... - -1. -94 .................. - ----- .... ..... ..... ----- - - ..... Free, Product ... ....... ..... ......... .. .... ............ O1 Groundwater Barrels Eh. ;bit N Page 1 of 2 a VL vil. enforcement Data docuor-4-lcra u.d ale re-.1ated CASZC.LQ;5UKh .10 1-: x h i b I t IN, N ge 2 () f -2 ----- ----- . .... . .......... ... .......... ee ... --- ............... - — ---- ...... . .. . . p - 0 - � avbm,"'v Of Lhe -ff.-O fik, R 4� Coi-itinued Comr-nents Case Cl ore ,,Stummary 87UT1132 gronnd wa er Boni oni benat-h e this former UST area, This downgrad*ent monitoring well (NIW-4): vvas sampled-eiaht tim S from December 1990 t0:0. tober 19,9, On Apr*] 'L 1991.MW-4. had 2 p.pb::Of benzene. detected, T st f v. -w -M grounds. sho ed he I As i e S P . pIm" non detect levels of all gaso'lme Ordlesel contwnM�ates, M' The this rito rmg ,-mo well., a 5 laced "ent 4 monrt'o.rin . well (vBNT- upgradi of the fornier U1,37 -was evtdC 9 p 11tty destroyed iand. fti's tuik-noi-vn f a to -w '111. Two rounds 1 -nNr moru ... nng data ex 1, -t r this ro P of Samph g for halog M ��pated volatile organics showed. 1. -ppb and 15 pp b of Ij d.1 I chloroethane I*n 4. W -, This conta =nate might be associated wlfth.� a s-teiam cleaning aarea located near the moraftoring Nvell* This UST was removed. On April 11, 1994. free so-11 sam p. I es iverc:,, taken m* the prevt(- detected: -,O of the Sample s.were taken in the area of the :)USIV exc.avzifion and tvk Soil con-tamlination in the north end of the excavatlwon. All soil. samples..',;ho non detect lev,,els of contarn, aftom. -v_ result au exca a as b. a kfilled fl-I v ted, soil m e I W excavation, Apparently, the ,are 04":s-oil contanw,i aton 'was minim-al and -had di'ssipa -ted over h.me. This site appears ot be a d to the environment or pub.1 healthits he t k �rem val sO.A..owed that c- on. tamination has g�rotind,��v'a.te,r,nioiiLito.r'ing and t. an 0 h-"- i of S"eal-Be ch is very c- -e been -red u red to non detect levels., In ad.d�itiort, t i. s-, are� a or Irm- n. Also th Ifirst.groun-dwater IMI..al be located above. ann area ot seawater M� SIO e I.N. A beneath the site ha ti beenshown tohaveyip to 4.310 p-prn of TDS which is much highevr than the drinkhng:waiter standard of less than 1000 ppm. "the 'refoie, anvl-, sol"I conta-mination tha t has missed detection and mignt still ex)-st I n the area would not sr re.10170urcec". be able to degnade potential m-u-nicipal and..dom esticground-watc AVOW ...... le000~.. b"ILDINNIG 86 LIQUID NTMOGEN TANX YARD V.— --, - — ---------- ........... .. ..... ""M� . ....... ..... .1Z A 'EL I I %w I. DIES REMOVED F. MW74 :10 A-3. LIMITS C)F EXCAV 4k PROPERTY LINE MW-2 N'/ R mw4a N/R FORMER GAS TANKS LIMITS OF EXCAVATION :x LIQUID Ni"FROCiEN IkANK YARD M, * MONITORING WELL LOCAPON .*THESE VALUES ARE RELATIVE ELEVAMNS BASED ON AN ASSUMD 100 FEET.DATL" GW`F C-0- N 7 -' NE- ]BASOUR - ti ED 0 N PREMOUS DATA AND LA IN M.E. RMENTS NI R INDICATES NO AEADINGTAKEN AT THIS POINT �NOIICATES DIRECTION OF FLOW NOT'TO SC A11.1 ve' poi mw -w I FIGURE ?, GROUNDWATER GRADIENT MAP: yMATENVIRONMENTAL INC. ROCKWELL ITERN. AL 22:01 SEAL BEACH BLVD. SEAL BEACHI CALIF ORNIA 807#40 ... .............................. ................. .. ........ DMWN ft FCW 11 /0:2 /94 CHK*D BY-fil G . 0114 FiG . URE 2 u1mm Sj Won COUNTY OF OPMN:GE: HU414 F. SMWORM WGIN WR Ut ;k �H CAR." AAohvwNCY HEALT: ROSERTE MEMMAN,, RENS. 14PH fry tAUNG 4k' R *S-: ZM PUBUC HEALTH AW-M ANA, CA 12 1 4* 2 12 .01VISION O.F.E.N.VIRONMENTAL HEALTH Febrw 1997 Th=8a Boehm B�ng�w Nonh.Amaric= Company P-:0* Box 4250 SCW Ueaich,, CA 9W 40-3250 W Action Compl-etion Certiric -ation Re Unde�ground -Storage Tank (LISI) C2SW. 13'(011g: N."Orth Ameniew,,VU'ilding 86 W. te low . t sm.m.1ins Seal Bewfi,, CA 90 740--81,5() (')-C H.C.A. Case- 86 M29 Dear Ms. Boehm: This lefter confi mis th eomP*60.11 Of fte investifg;f-Won anti rem, W tacdon for tile undeurrourld storage-tanks formerly Imated- -at. jhl--& dboNte-&�Sc. b-* loco C' to IM din d ed ation. E.M.1osed is ax ase C A t SUH ary re. 1. g. the lbove- re fe re nic C . d S. i Based Upon UvLl' available Inform4ld.m.including dieturrent land u.&� and 'With . 1he prmi 'm that the information p So- rovi (I d to tku's Ag 1� � =Y WaS WCurate.:-tind represemativeor s-Ite coil bons, no further action related to the Uf)(Jcr,1,4zroun(1 sto, rame lank re.am',' is required Ts t to a. rc ulaition cominned In Title 2.1 Catifo ia CoW of Regulatio This noticei's i&SW-ed... mr.u. jx 3 rru CliVI-er 16, SeUion 272 1(,e-)- Tfacb-amp mand seisp-m-Imsed, the o -T must prain Tly yl� U I mvm p notity this Agenc Plea-W lcb�,phone W0 0 fel at 714) 67-'�1630 If oubave, an qUc$00 s ' -reg n.. M3 4M sincercty, Kap n. L,, H(xsc' I'Yognarn Man.ager g ri Hazardous Maw "Als Se dron Jon EnvirOaMen(w . . . L. wa(14 11vis K L I - I.: dap p Anacl!imm cc Carl Dernhar 1. !i �aota Ana, Rep.*onal Watv*r Quahly Cmrp1..B(),*jrd Mike 11'ar1w, State Walter Rewurms C-Ontrot Omd Davt! Tk,:mm'. Stai c Waver Resuurce% Control B ar(l 1 � Hone -hourne, Environmental Health DIVL51on a e Cy . . Information ....... . . ...... 1111 0 .......... Agency Narm Orange:C . ...... . .. .. ..... ...... OuntY Health Care Agency --- -------------------- 124.P� San a .Case.Clos.ure -'summary Leaking Undergrotind Fuel Tank Program Rees or V e -s aft ... . ....... . S11 I PeTsomd: David G. woelfel Mum M�, NovemberX,19% Address: 2009 E.ist Edinger -Avenue Pt",On 9: (714) 667 3700 . . .......... ---- -- . . . . . . . . . . . . . . . . . . . . Title-Haza-rdauS ste Specialist Release and Site Characterizatiort 1xi-forrice. ini.1 he. IeZd w�_ :,Tv as t I of �,hc off"cin te r R sba! I lx.,� rel='4twd by E. 3 41ix rrlat CASE t IN Pug. 0 Case Closure Summary Lse,aking Underground Fuel Storage Tank Progra.m Case#.- 86-UT-29 Date.: January 29, .1997 Relea.se a ed) - ------ ---- - ------- nd Sits Characteriz-a-flo.n 1--nfor. m-ation Continu ..... .. .......... .... M- aximum Documented Contaminant Concentrations - - B e fore and Cleanu . ...... tl I I 1 0 0 orita; Ina t S.. Oil (PPM) Water (PP h0minant soil P. M) _�a te r TPPm) Befm "ft r I A e r Sel.". Bef�o- re ...... --- - -- ------------ -- - After 806* Af t er TPH (gas ) .. ....... .. S 10 . .. ... ....... 0 j: MTB E NA -2 ..... .. 8.enzene ........ NA ND ND Volume. no, NA 1 0- ND NO ... i ... Xylene, 89 NA - ---------------- 104-90 ND ---------- Ethytbeenze-n ...... ---------------- - ...... I .... NA ------ 40 1 +not avail. camll'", s­_� M tp......l... . . , t). ina...yeht mUnee" Sol on ton was noted tam beneath the, U's when ove.d.in 1986. The UST were bested dust South. of the $Outhwest comer of Buildlug 86. A soft boring (MW-1) phteed:::in the Southeast corner of the :tank o pit area shy ed. that gasoline 50U. c.on'tam: lination way mooted from approximately 1.3 to. 20 ft, below grade Cbg)* However, itappears that le the majority of the soil, contaminat4on was 11mited to the: center of the tank pit, Son siunp M - r sh -owed significant so-U oontanxination at 1:0 ft* bg In the c te - of the tank pit while soil, sampt e .-3 located near the southwest tangy fit vv9M showed muich lower levels of soil. contamination. An. attemptto plaet tlaree;borings to further define the vertical and downgradient lateral extent of so . U 0outaminatioln around the tank pit Was not completed as numerous underground utUltles prevented tile completion of the barings (OCHCA representa tive Patti llenshaw),_-Three. Monitoring wells were -a touk Placed arou d the er a Pit. MW-1 was placed slightly downgradient of the former tank "t P1 while MW -2 and N.TW-3 were placed to west and, north of the :tank . Only W wn -1 has sho any pit V- contamination and was sampled nlueteen times since: 1986. The highest level of co Aam".atlo:rt was noted 'Va. this monitaflng well in November 11, 1990 when 780 ppb of benz.elle VMs detectedop Since April 199 L, MW-;l was. .e tight times. with. the last three sarapling rounds- showing non- detect::bevels - of rontamination.. The highest level of Contamination noted since 1990 vms 3.1.0 ppb- of benzene:,. Non-detect levels of methyl.. tertiary butyl ether and.halogenated volatile (UTBE organi.cs werenot . ed in the monitoring well : at: the site. V. Closure V. Local A....ency.Representative Data ------- ----------- ---------- --- ------- - . . . ......... . ...... ...... ....... ........ .... ............ ------- - - ------------------ .......... _Nle4 Hazardous Waste SpeeiaUst Name,, David G. Woi I --------------- n­­­ ------- ........ . .... .... ------------ ---------- --- ...... .... slanatlure., CC71 IN -.!08 V Notificati on .......... . ... ...... .......... ........ ....... -- ---- ...... .. 11 ----------------- M Date Subirnitted to RB: _Fis Response.* ---- — ---- - ---------------- ..... Mtokm ---- - ... . . . . . . . . . . Me. I gineering Geologist Dat. CB SW4 Name: Carl Bernhardt Tj Assoc�'ate -7. ................... ... k IM, NOW ICU t . This docurn,,A�:nt sntd the t,,,fijted CASE CLOSURE I EMR, s 111v wtaneJ by t. &..' d qcacv as pan Page pf 3 V Additional Comments., Data, etc, M.W-2 and MW-3 wre ser d fp6ij ------------ (__ ........ e e ene W-30. f _wai scree from 21 ft bg to 40-ft4, b9aw Origin y.,, groundwater was detected at 23 feet bg but has boeu detected at around 15 ft. b V M* the Monitoring well. Although this mo-Mitoring well may not be sereened fdeaUy for site conditions, the Sampling data colletted from thiss monitoring well adequately shows that groundwater contaminationat -the site bas dissi-Pated to a level that is not a threat to thepubUc health and the Onvir one ent, It is unclear what levels of soil contammation remain "n the subsurface at the site, However, ft appears �'that the soil contAmination has heen: stigncantly redueedby natural attenuation as Andioated by the. groundwater sampling co -the site. In addition, imitlily s Mpleted at Contamination was found to be restrictedto a limited area., The threat of vapor raigration affecting work Crs. at this facity as low as this is an o -way from. the site"s manufacturing pen paved area: au areas, If construction: of or rep, r of th un. ground utilities Is to occur at this site, the construction or repair work individuals should be prepared for possibly, encounterm'19 gasoline Vapors* This site is a low risk sire ..for the foll-ovning reasons.- 1) the source of coast amInation was removed in. 1986* 2) Th at e. Sampling of the. three Manit-Oring wells at the site laws shown th gro un dwa ter cont4n ='atton bas natu. rally attenuated to non-detected levels; 3) The near suiface groundwater at the site is degraded by high levels of total di.ssolved solids ( ILe.. up to 4470.ppm) and is not use. ul for damestic or: irnig4tion uses. The site is very -near to an area of sea water intrusion which ewtends generally beneath the SanGsbrial River inland firom the oeean in im area known as the Los Ala "tos R l Q �; ic ise 4,114il Rev )e off' 9 R A S 1Z t th, llti_ '60-cumwat and ic e as