HomeMy WebLinkAboutCC AG PKT 2011-02-14 #J AGENDA STAFF REPORT
DATE: February 14, 2011
TO: Honorable Mayor and City Council
THRU: Patrick P. Importune, City Manager
FROM: Mark H. Persico, AICP, Director of Development Services
SUBJECT: ADOPTION OF ADDENDUM TO INITIAL STUDY /
MITIGATED NEGATIVE DECLARATION (IS /MND) 99 -1
FOR IMPROVEMNETS TO THE INTERSTATE 405 /
SEAL BEACH BOULEVARD BRIDGE
SUMMARY OF REQUEST:
That the City Council adopt an Addendum to Initial Study /Mitigated Negative
Declaration (IS /MND) for the I- 405 /Seal Beach Boulevard Bridge Improvement
Project, and adopt Resolution No. 6109.
BACKGROUND:
On October 25, 1999, the Seal Beach City Council adopted the IS /MND for the
Interstate 405 / Seal Beach Boulevard Improvement Project (Negative Declaration
99 -1). The 1999 IS /MND addressed the full -width widening of the Seal Beach
Boulevard overcrossing of 1-405 and roadway approaches from North Gate Road
(formerly Beverly Manor Drive) at the 1 -405 southbound ramps, to Old Ranch
Parkway at the 1 -405 northbound ramps. Since 1999 several factors have lead to
the project being reduced to only include improvements along the southside of the
1 -405 Freeway.
FINANCIAL IMPACT:
The construction project has already been funded through OCTA. There are no
additional fiscal impacts associated with the adoption of the Addendum to the
Initial Study /Mitigated Negative Declaration.
ANALYSIS:
Under the California Environmental Quality Act (CEQA), an Addendum to an
adopted Negative Declaration or Mitigated Negative Declaration is needed if minor
technical changes or modifications to the proposed project occur (CEQA Guidelines
Agenda Item J
Page 2
§15164). An Addendum is appropriate only if these minor technical changes or
modifications do not result in any new significant impacts or a substantial
increase in the severity of previously identified significant impacts.
The Addendum IS /MND for the 1- 405 /Seal Beach Boulevard Improvement Project
addresses a substantial reduction in the scope of the proposed project.
Previously, the proposed project addressed a range of improvements from North
Gate Road at the 1 -405 southbound ramps to Old Ranch Parkway at the 1 -405
northbound ramps in order to widen the Seal Beach Boulevard overcrossing.
The project has been revised to only include a limited range of improvements (as
described in the Addendum), none of which would result in any new significant
impacts or a substantial increase in the severity of previously identified impacts.
The roadway widening and median improvements associated with the reduced
project description would make Seal Beach Boulevard consistent with
improvements associated with the West County Connectors Project. The revised
project would support the requirement for an additional third through travel lane
heading northbound across the Seal Beach Boulevard overcrossing, as well as
maintain consistency with the Seal Beach General Plan Circulation Element's
designation of Seal Beach Boulevard as a six -lane roadway (three lanes in each
direction), providing circulation and safety benefits in the project area.
In conclusion, the reduced project has a smaller construction footprint, resulting
in no new significant impacts and no need or requirement to revise and re-
circulate the original environmental document. Pursuant to CEQA Guidelines
§15164, an Addendum is the appropriate environmental document.
RECOMMENDATION:
Adopt Resolution No. 6109, thereby adopting an Addendum to the Initial Study /
Mitigated Negative Declaration (ND 99 -1) for the I- 405 /Seal Beach Boulevard
Improvement Project.
SUBMITTED BY: NOTED AND APPROVED:
_
Mark H. Persico, AICP • atrick P. Importu
Director of Development Services City Manager
Attachments:
A. Resolution No. 6109
B Addendum to the Initial Study /Mitigated Negative Declaration for the I- 405 /Seal Beach
Boulevard Improvement Project, December 2010
ATTACHMENT "A"
RESOLUTION NO. 6109
ADOPTING THE INITIAL STUDY / MITIGATED
NEGATIVE DECLARATION FOR THE 1 -405 /
SEAL BEACH BOULEVARD IMPROVEMENT
PROJECT
RESOLUTION NUMBER 6109
A RESOLUTION OF THE SEAL BEACH CITY COUNCIL
ADOPTING AN ADDENDUM TO THE INITIAL
STUDY /MITIGATED NEGATIVE DECLARATION FOR THE
INTERSTATE 405 /SEAL BEACH BOULEVARD IMPROVEMENT
PROJECT AND INSTRUCTING STAFF TO FILE APPROPRIATE
DOCUMENTATION WITH THE COUNTY OF ORANGE
THE CITY COUNCIL OF THE CITY OF SEAL BEACH DOES HEREBY
RESOLVE, FIND, DECLARE, DETERMINE AND ORDER AS FOLLOWS:
Section 1. On October 25, 1999, the City Council adopted an Initial
Study /Mitigated Negative Declaration for improvements to the Interstate 405 /Seal
Beach Boulevard Improvement Project. The 1999 IS /MND addressed the full -width
widening of the Seal Beach Boulevard overcrossing of 1 -405 and roadway
approaches from North Gate Road (formerly Beverly Manor Drive) at the 1-405
southbound ramps, to Old Ranch Parkway at the 1 -405 northbound ramps.
Section 2. Under the California Environmental Quality Act (CEQA), an
Addendum to an adopted Negative Declaration or Mitigated Negative Declaration is
needed if minor technical changes or modifications to the proposed project occur
(CEQA Guidelines §15164). An Addendum is appropriate only if these minor
technical changes or modifications do not result in any new significant impacts or
a substantial increase in the severity of previously identified significant impacts.
Further, pursuant to CEQA Guidelines Section 15164(c) an Addendum need not
be circulated for public review.
Section 3. The Addendum IS /MND for the I- 405 /Seal Beach Boulevard
Improvement Project addresses a substantial reduction in the scope of the
proposed project. Previously, the proposed project addressed a range of
improvements from North Gate Road at the 1 -405 southbound ramps to Old
Ranch Parkway at the 1 -405 northbound ramps in order to widen the Seal Beach
Boulevard overcrossing. The project has been revised to only include a limited
range of improvements (as described in the Addendum), none of which would
result in any new significant impacts or a substantial increase in the severity of
previously identified impacts.
Section 4. The City has determined based on substantial evidence in the
record, including without limitation, the Addendum to the IS /MND dated December
2010, staff reports and testimony, that an Addendum is the appropriate
environmental document, and that none of the project revisions described in
Section 3 of the Addendum result in significant modifications to the original Project.
Further, that none of the conditions described in CEQA Guidelines Section 15162
(Subsequent Negative Declaration) exist.
The documents that comprise the record of the proceedings are on file with
the Department of Development Services, 211 Eighth Street, Seal Beach. The
custodian of said records is the Director of Development Services.
Section 5. The City Council hereby adopts the Addendum to the
Mitigated Negative Declaration, and approves the Project.
Section 6. The City Council hereby adopts the Mitigation Monitoring and
Reporting Program by reference, and imposes each mitigation measure as a
condition of the Project's approval. City staff shall be responsible for
implementation and monitoring the mitigation measures described in the 1999
MMRP and the in Addendum.
Resolution Number 6109
Section 7. The Council hereby instructs the Director of Development
Services to file a notice of determination with the County of Orange and
authorizes staff to proceed with all steps necessary to implement the Project.
PASSED, APPROVED and ADOPTED by the Seal Beach City Council at a
regular meeting held on the 14th day of February , 2011 by the following vote:
AYES: Council Members
NOES: Council Members
ABSENT: Council Members
ABSTAIN: Council Members
Mayor
ATTEST:
City Clerk
STATE OF CALIFORNIA }
COUNTY OF ORANGE } SS
CITY OF SEAL BEACH }
1, Linda Devine, City Clerk of the City of Seal Beach, do hereby certify that the
foregoing resolution is the original copy of Resolution Number 6109 on file in
the office of the City Clerk, passed, approved, and adopted by the Seal Beach
City Council at a regular meeting held on the 14th day of February , 2011.
City Clerk
ATTACHMENT "B"
ADDENDUM TO THE INITIAL STUDY /
MITIGATED NEGATIVE DECLARATION FOR
THE 1 -405 / SEAL BEACH BOULEVARD
IMPROVEMENT PROJECT, DECEMBER 2010
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Addendum to the Initial Study/
Mitigated Negative Declaration
for Interstate 405 /Seal Beach Boulevard
Improvement Project
SCH No. 99071096
LEAD AGENCY:
City of Seal Beach
Development Services Department
211 8 Street
Seal Beach, California 90740
Contact: Mr. Mark Persico, A1CP
Director of Development Services
562.431.2527
PREPARED BY:
RBF Consulting
14725 Alton Parkway
Irvine, California 92618
Contact: Mr. Glenn Lajoie, A1CP
Mr. Alan Ashimine
949.472.3505
December 2010
JN 10- 107643
:��' o ). CITY OF SEAL BEACH
6 ADDENDUM IS /MND FOR INTERSTATE 405 /SEAL BEACH BOULEVARD IMPROVEMENT PROJECT
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1. INTRODUCTION
Environmental analysis under the California Environmental Quality Act (CEQA) for the Interstate
405 (1- 405) /Seal Beach Boulevard Improvement Project was initiated by the City of Seal Beach
(City) through preparation of an Initial Study /Mitigated Negative Declaration (IS /MND) for the
proposal in 1999 (Negative Declaration 99 -1, Seal Beach Boulevard/I -405 Overcrossing
Widening Project, RBF Consulting, 1999). The 1999 IS /MND addressed the full -width widening
of the Seal Beach Boulevard overcrossing of 1-405 and roadway approaches from North Gate
Road (formerly Beverly Manor Drive) at the 1 -405 southbound ramps to Old Ranch Parkway at
the 1 -405 northbound ramps. The widening would accommodate two additional through lanes in
addition to median, sidewalk, and bicycle lane improvements. Specifically, the project consisted
of widening the overcrossing by approximately 44 feet to a total width of approximately 122 feet.
These improvements were intended to accommodate an additional two through travel lanes (for
a total of three through travel lanes in each direction) with roadway approaches. The majority of
the improvements were proposed within existing Caltrans right -of -way (ROW). Minor areas of
ROW acquisition were proposed near Seal Beach Boulevard and Old Ranch Parkway. The
IS /MND was adopted by the City of Seal Beach City Council on October 25, 1999.
Since adoption of the 1999 IS /MND, the project has undergone modifications that reduce the
scope and severity of impacts related to the project. Thus, the City has prepared this
Addendum for the Interstate 405/Seal Beach Boulevard Improvement Project (Addendum
IS/MND) to address these modifications to the project in accordance with the CEQA. A detailed
description of these modifications is provided in Section 3, Project Revisions.
2. STATUTORY BACKGROUND
Under CEQA, an Addendum to an adopted Negative Declaration or Mitigated Negative
Declaration is needed if minor technical changes or modifications to the proposed project occur
(CEQA Guidelines §15164). An Addendum is appropriate only if these minor technical changes
or modifications do not result in any new significant impacts or a substantial increase in the
severity of previously identified significant impacts. The Addendum need not be circulated for
public review (CEQA Guidelines §15164[c]); however, an Addendum is to be considered by the
decision - making body prior to making a decision on the project (CEQA Guidelines §15164[d]).
This Addendum to the previously adopted 1999 IS/MND demonstrates that the environmental
analysis, impacts, and mitigation requirements identified in the 1999 IS/MND remain
substantively unchanged despite project revisions described herein, and supports the finding
that the proposed project does not raise any new issues and does not exceed the level of
impacts identified in the previous CEQA documentation.
3. PROJECT REVISIONS
The Addendum IS/MND for the 1-405 /Seal Beach Boulevard Improvement Project addresses a
substantial reduction in the scope of the proposed project. Previously, the proposed project
addressed a range of improvements from North Gate Road at the 1-405 southbound ramps to
Old Ranch Parkway at the 1-405 northbound ramps in order to widen the Seal Beach Boulevard
overcrossing. The project has been revised to only include a limited range of improvements
along Seal Beach Boulevard where it intersects with North Gate Road /I-405 southbound ramps;
DECEMBER 2010 PAGE 1
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4 ,�; . s. CITY OF SEAL BEACH
- ; = • r :5 ADDENDUM IS /MND FOR INTERSTATE 405 /SEAL BEACH BOULEVARD IMPROVEMENT PROJECT
refer to Attachment A, Project Exhibits, for a depiction of project location and the conceptual
impact area. Specifically, the proposed project would include the following:
• Widening of Seal Beach Boulevard to include an additional through lane on the
northbound approach to the 1-405 southbound ramps, for a total of three northbound
through lanes. The widening would occur within the City's existing ROW along the
easterly edge of the roadway. The roadway would be widened approximately 15 feet,
for a length of approximately 340 feet. The widening would also require the relocation of
a traffic signal located at the southeastern corner of the intersection of Seal Beach
Boulevard and the 1 -405 southbound ramps.
• Extension of an existing raised landscaped median along Seal Beach Boulevard, south
of North Gate Road /I-405 southbound ramps. The existing raised landscaped median
currently terminates approximately 500 feet south of North Gate Road /I -405 southbound
ramps. The proposed project would extend the 14 -foot wide median an additional 320
feet to the north. However, as discussed below in Section 4, Impact Comparison, this
minor modification would not result in any new significant impacts or a substantial
increase in the severity of previously identified impacts.
The remainder of the improvements identified under the 1999 IS /MND are no longer included
within the scope of this project. Instead, they have been accounted for within the California
Department of Transportation's (Caltrans) and Orange County Transportation Authority's
(OCTA) West County Connectors Project. The West County Connectors Project will link high
occupancy vehicle (HOV) lanes /carpool lanes on 1 -405 with those on State Route 22 (SR -22)
and Interstate 605 (1 -605) to create a seamless HOV connection amongst the three freeways.
The project traverses the cities of Seal Beach, Garden Grove, Westminster, Los Alamitos, and
the community of Rossmoor. The impacts of the West County Connectors Project were
previously analyzed within an Environmental Impact Report/Environmental Impact Statement
prepared by the Federal Highway Administration (FHWA) and Caltrans. The environmental
document was approved in 2003.
The roadway widening and median improvements associated with the revised project
description would make Seal Beach Boulevard consistent with improvements associated with
the West County Connectors Project. The revised project would support the requirement for an
additional third through travel lane heading northbound across the Seal Beach Boulevard
overcrossing. The revised project would be consistent with the Seal Beach General Plan
Circulation Element's designation of Seal Beach Boulevard as a six -lane roadway (three lanes
in each direction), providing circulation and safety benefits in the project area.
4. IMPACT COMPARISON
Through the course of evaluating the revised project description, the City determined that no
new significant impacts or substantial increase in the severity of impacts would occur upon
project implementation. A comparison of impacts between the original project description (as
analyzed in the 19991S /MND) and the revised project description is provided below.
Aesthetics
In comparison to the previous version of the project description, the revised project description
would result in a substantial reduction in the potential for aesthetic impacts in the vicinity of the
DECEMBER 2010 PAGE 2
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CITY OF SEAL BEACH
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ADDENDUM IS /MND FOR INTERSTATE 405 /SEAL BEACH BOULEVARD IMPROVEMENT PROJECT
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project site. Visual impacts associated with the project would be limited to a small area south of
the 1-405 /Seal Beach Boulevard interchange.
The project would result in beneficial impacts during Tong -term operations, since it would include
a 14 -foot wide raised median that would be landscaped in accordance with City requirements.
Although the construction process could result in temporary impacts (due to grading and
construction equipment), Mitigation Measures 4.1a and 4.1b from the 1999 IS/MND would
remain applicable to the proposed project. These mitigation measures would require the
relocation or replacement of any mature trees affected by the project, in addition to landscaping
in accordance with City standards.
Thus, no new significant impacts or substantial increase in the severity of impacts would occur
in regards to aesthetics as a result of project revisions.
Agriculture and Forestry Resources
The revised project area has been previously disturbed. The portion of the project site where
the existing raised median would be extended is paved, and is not occupied by agriculture or
forestry resources. Similarly, the portion of the site where the proposed roadway widening
would occur is occupied primarily by non - native vegetation and is not being utilized for
agricultural or forestry purposes. Thus, no new significant impacts or substantial increase in the
severity of impacts would occur in regards to agriculture and /or forestry resources as a result of
project revisions.
Air Quality
An analysis of air quality related impacts within the 1999 IS/MND found that with the adherence
to South Coast Air Quality Management District (SCAQMD) Rules 402 and 403, short-term
construction related impacts would be less than significant. The project area includes the
widening of Seal Beach Boulevard (by approximately 15 feet for a length of approximately 340
feet) and the extension of a 14 -foot wide landscaped median for a length of approximately 320
feet. Construction activities are anticipated to begin in February 2011, with a six month
construction duration. Air quality emissions associated with the proposed improvements have
been quantified with the Bay Area Air Quality Management District's Roadway Construction
Emissions Model'; refer to Table 1, Estimated Daily Construction Emissions. The criteria air
pollutant emissions would be below the SCAQMD thresholds and a less than significant impact
would occur in this regard.
Table 1
.y. Estimated Daily Construction Emissions
�.' '�iPi. �','�,s f:2 `•,. 4N :\ � -'t.i. .�•. .v y ; t ''• •.• _ -ci - "•Y .+. '+�'..- (:.- "y
' ?:v r .4� Emissions ( oundsl'day ..:::t,` a�
- , t..-Emissions.
.ri ;:: ROG, t: NOz:r. a - :CQ : : - $Ox' F 44. Prviiir.:1:=V:Pmilii
Projected Emissions 4.3 35.2 18.7 0.0 2.8 1.8
SCAQMD Thresholds 75 100 550 150 150 55
Significant Impact? No No No No No No
Source: Roadway Construction Emissions Model, version 6.3.2
1 As recommended by the South Coast Air Quality Management District. http: / /www.agmd.gov /cecia /models.html
DECEMBER 2010 PAGE 3
.F 1 4t B+
F � -�?;9 CITY OF SEAL BEACH
f: r , 1 ADDENDUM IS /MND FOR INTERSTATE 405 /SEAL BEACH BOULEVARD IMPROVEMENT PROJECT
The 1999 IS/MND concluded the proposed project would result in less than significant
operational emissions due to the improvement in the level of service (LOS). The proposed
revisions would not affect the LOS and mobile source emissions would remain a less than
significant impact.
Thus, no new significant impacts or substantial increase in the severity of impacts would occur
in regards to air quality as a result of project revisions.
Biological Resources
An analysis of impacts to biological resources within the 1999 IS /MND found that no impacts to
biological resources were expected to occur due to the site's developed condition. Although the
original project was expected to impact existing landscaping within the impact area, affected
areas would be replanted and irrigated by a permanent irrigation system.
To provide an updated assessment of the potential for impacts to biological resources due to
the revised project description, a Biological Letter Report was prepared by Harmsworth
Associates as part of this Addendum IS /MND; refer to Attachment C, Biological Letter Report.
On October 27 2010, Harmsworth Associates conducted a site assessment and focused nesting
bird survey at the portion of the project site where Seal Beach Boulevard would be widened
along its eastern ROW. Surveys were conducted during the morning hours when bird activity is
highest. The area of Seal Beach Boulevard where median improvements are proposed was not
surveyed due it developed /disturbed condition and lack of any vegetation.
The project area consisted primarily of ice plant (Mesembryanthemum sp.) and bare ground. A
few caster bean (Ricinus communis) and Russian thistle (Salsola tragus) were also present. A
stand of blue gum (Eucalyptus sp.) and a Mexican fan palm (Washingtonia robusta) occurred
adjacent the site.
No active bird nests were detected within the site boundaries. The eucalyptus trees do not have
any current or old raptor nests but they have the potential to support nests during the breeding
season. The only wildlife present during the site visit was an American kestrel (Falco
parvenus).
The project site does not support any native habitats, sensitive habitats, wetlands or
streambeds. The site does not support any special status species plants or wildlife and has no
potential to support any special status species. Currently, there are no biological constraints at
the project site; however, if construction occurs during the raptor nesting season (February
through July); an additional nesting bird survey should be conducted on -site. Thus, this
measure has been formally added as a mitigation measure to the Addendum IS/MND below.
Thus, no new significant impacts or substantial increase in the severity of impacts would occur
in regards to biological resources as a result of project revisions.
DECEMBER 2010 PAGE 4
Q � SER(s� �
ti "' CITY OF SEAL BEACH
ADDENDUM IS /MND FOR INTERSTATE 405 /SEAL BEACH BOULEVARD IMPROVEMENT PROJECT
Kti
4y�9 (V •h_r�
"4.0 List of Mitigation Measures
4.4 Biological Resources
a. In the event construction for the proposed project occurs during the raptor nesting
season (February through July). the City of Seal Beach shall have a pre- construction
survey conducted by a qualified biologist to identify any active nesting locations. If the
biologist does not find any active nests within the impact area, construction will be
allowed to proceed. If the biologist finds an active nest within the construction area and
determines that the nest may be impacted. the biologist will delineate an appropriate
buffer zone around the nest dependinq on the species and the type of construction
activity. Any active nests observed during the survey will be mapped on an aerial
photograph. Only construction activities (if any). approved by the biological monitor, will
take place within the buffer zone until the nest is vacated. The biologist shall serve as a
construction monitor during those periods when construction activities shall occur near
active nest areas to ensure that no inadvertent impacts on these nests shall occur."
Cultural Resources
An analysis of cultural resources within the 1999 IS/MND found that no impacts to cultural
resources would occur upon implementation of the original version of the project description due
to the level of disturbance in the project area.
In addition, the U.S. Department of the Navy performed archaeological testing at the Seal
Beach U.S. Naval Weapons Station (southeast of the project site). As indicated in the report
entitled Archaeological Testing at Sites P- 30- 001502, P -30- 001503, and P -30- 001504, Naval
Weapons Station, Seal Beach, Orange County, California, several archaeological sites were
documented on the Weapons Station. The closest site (designated P -30- 001502) was
determined to include Native American resources within and adjacent to an existing Orange
County Flood Control District (OCFCD) channel approximately 150 feet southeast of the site.
However, the Archaeological Testing report indicated that the resources were concentrated
within and immediately surrounding the drainage channel and did not extend to the proposed
project site.
As stated above, the project site has been substantially reduced in area to include the widening
of Seal Beach Boulevard (by approximately 15 feet for a length of approximately 340 feet) and
the extension of a 14 -foot wide landscaped median for a length of approximately 320 feet. The
research conducted by the U.S. Department of the Navy for the Seal Beach Weapons Station
indicated that known archaeological resources in the area do not extend onto the project site.
Moreover, the area to be impacted by the landscaped median has been previously disturbed by
roadway uses, and no impacts are anticipated to occur. However, since known cultural
resources exist within the site vicinity, mitigation has been incorporated into this Addendum
IS /MND in the event cultural resources are encountered during project grading.
Thus, no new significant impacts or substantial increase in the severity of impacts would occur
in regards to cultural resources as a result of project revisions.
DECEMBER 2010 PAGE 5
CITY OF SEAL BEACH
ADDENDUM IS /MND FOR INTERSTATE 405 /SEAL BEACH BOULEVARD IMPROVEMENT PROJECT
• �, ;
"4.0 List of Mitigation Measures
4.5 Cultural Resources
a. In the event buried cultural resources are discovered during grading activities, an
Orange County- certified archaeologist shall be retained to evaluate the discovery prior
to resuming grading in the immediate vicinity of the find. If warranted, the archaeologist
shall collect the resource, and prepare a technical report describing the results of the
investigation. The test -level report shall evaluate the site including discussion of
significance (depth, nature, condition and extent of the resources), final mitigation
recommendations, and cost estimates. The City of Seal Beach shall prepare excavated
materials to the point of identification, and shall offer excavated finds for curatorial
purposes to the County of Orange. or its designee, on a first refusal basis. The City of
Seal Beach shall pay curatorial fees if an applicable fee program has been adopted by
the County's Board of Supervisors, and such fee program is in effect at the time of
presentation of the materials to the County of Orange or its designee."
Geology and Soils
The proposed project site would be substantially reduced in size in comparison to previous
versions of the project description. The project's impact area would be limited to a small area
south of the I- 405 /Seal Beach Boulevard interchange.
The project would no longer include improvements to Seal Beach Boulevard along its
overcrossing of 1 -405; thus, the susceptibility to geological impacts would be reduced given the
reduction in the scope of the project. As such, several mitigation measures identified within the
1999 IS /MND are no longer required.
Although impacts related to faulting /seismicity, liquefaction, erosion, and stability could
potentially occur with the revised project, all such impacts would be reduced in comparison to
the previous version of the project description. Thus, no new significant impacts or substantial
increase in the severity of impacts would occur in regards to geology and soils as a result of
project revisions.
"4.6 Geology and Soils
a. Prior to is euance of a grading permit, the City shall complete a gcotcchnical rcport for
rcport chall include the information and be in the
e. • - -. - - - - - - - • ccures to mitigate liquefaction coil conditions.
n
DECEMBER 2010 PAGE 6
Q ` SFR�B
::!*4")'" CITY OF SEAL BEACH
ADDENDUM IS /MND FOR INTERSTATE 405 /SEAL BEACH BOULEVARD IMPROVEMENT PROJECT
4.01Wyy wQ
Greenhouse Gases
The analysis for the 1999 IS /MND was conducted prior to adoption of Assembly Bill (AB) 32,
Senate Bill (SB) 97, and the recent amendments to the CEQA Guidelines which require an
analysis of global climate change impacts. On December 5, 2008, the SCAQMD adopted
greenhouse gas (GHG) significance threshold for Stationary Sources, Rules, and Plans where
the SCAQMD is lead agency. The threshold uses a tiered approach. The project is compared
with the requirements of each tier sequentially and would not to result in a significant impact if it
complies with any tier. Tier 1 excludes projects that are specifically exempt from SB 97 from
resulting in a significant impact. Tier 2 excludes projects that are consistent with a GHG
reduction plan that has a certified final CEQA document and complies with AB 32 GHG
reduction goals. Tier 3 excludes projects with annual emissions lower than a screening
threshold. For industrial stationary source projects, the SCAQMD adopted a screening
threshold of 10,000 metric tons of carbon dioxide equivalents (MT CO per year. This
threshold was selected to capture 90 percent of the GHG emissions from these types of projects
where the combustion of natural gas is the primary source of GHG emissions. SCAQMD
concluded that projects with emissions less than the screening threshold would not result in a
significant cumulative impact. Tier 4 consists of three decision tree options. Tier 5 would
exclude projects that implement offsite mitigation (GHG reduction projects) or purchase offsets
to reduce GHG emission impacts to less than the proposed screening level.
Under the first decision tree option for Tier 4, the project would be excluded if design features
and /or mitigation measures resulted in emissions 30 percent lower than business as usual
emissions. Under the second option the project would be excluded if it had early compliance
with AB 32 through early implementation of the California Air Resources Board's (CARB)
Scoping Plan measures. Under the third option, project would be excluded if it met sector
based performance standards. However, the specifics of the Tier 4 compliance options were
not adopted by the SCAQMD board in order to allow further time to develop the options and
coordinate with CARB's GHG significance threshold development efforts.
While not adopted by the SCAQMD Board, the guidance document prepared for the stationary
source threshold also suggested the same tiered approach for residential and commercial
projects with a 3,000 MT CO per year screening threshold. However, at the time of adoption
of the industrial stationary source threshold, the SCAQMD felt additional analysis was required
along with coordination with CARB's GHG significance threshold development efforts.
At the most recent SCAQMD GHG working group meeting (November 2009), SCAQMD staff
presented two options for screening thresholds for residential and commercial projects. The
first option would have different thresholds for specific land uses. The proposed threshold for
residential projects is 3,500 MT CO per year, the commercial threshold is 1,400 MT CO
per year, and the mixed -use threshold is 3,000 MT CO per year. The second option would
apply the 3,000 MT CO per year screening threshold for all commercial /residential projects.
Lead agencies would be able to select either option. These thresholds are based on capturing
90 percent of the emissions from projects and requiring them to comply with the higher tiers of
the threshold (i.e., performance requirements or GHG reductions outside of the project) to not
result in a significant impact.
Staff also presented updates for compliance options for Tier 4 of the significance thresholds.
The first option would be a reduction of 23.9 percent in GHG emissions over the base case.
This percentage reduction represents the land use sector portion of the CARB Scoping Plan's
DECEMBER 2010 PAGE 7
���� •:- .�.G +�`� CITY OF SEAL BEACH
ADDENDUM IS /MND FOR INTERSTATE 405 /SEAL BEACH BOULEVARD IMPROVEMENT PROJECT
Ykk jk�x2
overall reduction of 28 percent. This target would be updated as the AB 32 Scoping Plan is
revised. The base case scenario for this reduction still needs to be defined. Residual
emissions would need to be Tess than 25,000 MT CO per year to comply with the option.
Staff proposed efficiency targets for the third option of 4.6 MT CO per year per service
population (population employment) for project level analysis and 6.6 MT CO per year for
plan level analyses. For project level analyses, residual emissions would need to be less than
25,000 MT CO per year to comply with this option.
For the proposed project, the 3,000 MT CO per year screening threshold is used as the
significance threshold. The methodology recommends that total construction emissions be
amortized over a 30 -year period or the project's expected lifetime if it is Tess than 30 years. The
combined operational and amortized construction emissions are assessed against the 3,000 MT
CO screening threshold.
Based on the modeling conducted for the proposed project, the anticipated CO emissions
would be 5.6 MT CO per year.
Thus, no new significant impacts or substantial increase in the severity of impacts would occur
in regards to greenhouse gases as a result of project revisions.
Hazards and Hazardous Materials
The 1999 IS /MND included an analysis of hazardous materials based upon a Phase I
Environmental Site Assessment (ESA). The ESA included an inventory of potential hazardous
materials sites within the site vicinity. The ESA found indicates that no known hazardous
materials sites exist within the revised project boundaries. Although the Seal Beach U.S. Naval
Weapons Station (southeast of the project site) has been identified as causing groundwater
contamination in the vicinity, the groundwater plume is not located immediately under or
adjacent to the site and is documented as traveling in a southeast direction. In addition, no
structures exist within or adjacent to the project site.
Similar to previous versions of the project description, the revised project would not create the
need for routine transport, use, or disposal of hazardous materials, beyond limited quantities of
fertilizers /pesticides needed for landscape maintenance. Moreover, although the project site is
situated within the Los Alamitos Joint Forces Training Base Airport Environs Land Use Plan
Height Restriction Zone, the project would not result in any safety impacts since it would include
only minor median and roadway widening improvements.
In addition, the project would not affect any existing or proposed school within one - quarter mile
of the site, and no private airstrip is located in the site vicinity. The project would not result in
impacts to emergency response or access, as it would improve circulation over the long -term
and would be subject to a City- required Traffic Management Plan (TMP) for short-term
construction impacts (refer to Mitigation Measure 4.15a of the 1999 1S/MND). The project would
not result in any additional impacts related to wildland fires.
2 Note, that only CO2 emissions were modeled. Other GHG's (i.e., methane, nitrous oxide, and fluorinated gases) are
negligible during construction activities. The estimated GHG emissions from the Roadway Construction Emissions
Model were 186 short tons per year, which when converted to metric tons and amortized over 30 years equates to
5.6 metric tons.
DECEMBER 2010 PAGE 8
CITY OF SEAL BEACH
ff r L . )Si ADDENDUM IS /MND FOR INTERSTATE 405 /SEAL BEACH BOULEVARD IMPROVEMENT PROJECT
�
The revised project description includes a substantially- reduced project area in comparison to
the original project description analyzed in the 1999 IS/MND. The project's impact area would
be limited to a small area south of the I- 405 /Seal Beach Boulevard interchange, where only
roadway widening and median improvements are proposed. Thus, impacts related to hazards
and hazardous materials would be reduced in comparison to the 1999 IS/MND. In addition,
Mitigation Measures 4.7a and 4.7b of the 1999 IS /MND would remain applicable to the project,
which would implement safety measures in the event unexpected hazardous materials are
discovered during construction.
Thus, no new significant impacts or substantial increase in the severity of impacts would occur
in regards to hazards and hazardous materials as a result of project revisions.
Hydrology and Water Quality
Generally, the revised project would result in reduced hydrology and water quality impacts,
given the substantially- reduced area to be impacted in comparison to previous versions of the
project description.
Similar to the results of analysis provided within the 1999 IS/MND, the revised project would not
result in any significant impacts related to groundwater, drainage patters /capacity, flooding, or
seich /tsunami /mudflow. In addition, similar to mitigation provided in the 1999 IS/MND, the
project would be required to comply with National Pollutant Discharge Elimination System
(NPDES) requirements to ensure that water quality impacts remain less than significant (refer to
Mitigation Measure 4.8a of the 1999 IS/MND).
Thus, no new significant impacts or substantial increase in the severity of impacts would occur
in regards to hydrology and water quality as a result of project revisions.
Land Use and Planning
As a roadway project that includes only minor roadway widening and median improvements, the
project would not have the ability to divide an established community, conflict with land use
plans /policies, or conflict with a habitat conservation plan or natural community conservation
plan. These conclusions are consistent with the findings of the 1999 IS/MND. Thus, no new
significant impacts or substantial increase in the severity of impacts would occur in regards to
land use and planning as a result of project revisions.
Mineral Resources
Similar to previous versions of the project description, the revised project would not interfere
with the availability of a mineral resource or result in the loss of a mineral recovery site. Thus,
no new significant impacts or substantial increase in the severity of impacts would occur in
regards to mineral resources as a result of project revisions.
Noise
Similar to the results of analysis provided within the 1999 IS/MND, the revised project would not
result in any significant impacts related to short- or long -term noise. The nearest sensitive noise
receptors are the residences to the west in Leisure World. Construction activities would be
minor and would last approximately six months. In order to establish procedures for conducting
DECEMBER 2010 PAGE 9
oho, SfRt d�:v.
F yn,, >_•�; : CITY OF SEAL BEACH
ADDENDUM IS /MND FOR INTERSTATE 405 /SEAL BEACH BOULEVARD IMPROVEMENT PROJECT
environmental analysis of short-term construction - related noise impacts and establish standard
mitigation measures, the City Council adopted Policy 600 - 11 on December 11, 2005. The
policies, procedures, and standard mitigation measures presented in City Council Policy 600 - 11
establish a benchmark for identifying significant short-term, construction related noise impacts.
City Council Policy 600 - 11 defines a substantial temporary or periodic increase as a continuous
noise of more than 70 dBA for 15 minutes or more, or an intermittent noise of more than 75 dBA
for between five and 14 minutes resulting from construction that occurs between 7:00 a.m. and
8:00 p.m. Adherence to City Council Policy 600 -11, as well as limiting construction hours and
vehicle staging areas (refer to Mitigation Measures 4.11a and 4.11b of the 1999 IS /MND) would
result in a Tess than significant impact.
Due to the scale and nature of the proposed improvements, traffic volumes would not change
nor would vehicles move closer to sensitive uses. Therefore, long -term traffic noise would be
Tess than significant.
Thus, no new significant impacts or substantial increase in the severity of impacts would occur
in regards to noise as a result of project revisions.
Population and Housing
Similar to analysis provided within the 1999 IS/MND, the revised project is not anticipated to
result in impacts related to growth inducement or the displacement of housing or people. The
project would include minor median and roadway widening improvements that would not alter
the location, distribution, density, or growth rate within the City or surrounding areas. In
addition, no housing or people occupy the project site. Thus, no new significant impacts or
substantial increase in the severity of impacts would occur in regards to population and housing
as a result of project revisions.
Public Services
The proposed project site would be substantially reduced in size in comparison to previous
versions of the project description. The project's impact area would be limited to a small area
south of the I- 405 /Seal Beach Boulevard interchange. The project itself would not result in any
uses capable of directly increasing the need for fire /police protection, schools, parks, or other
public facilities. The primary concern related to public services would be potential impacts to
emergency response and access along Seal Beach Boulevard during the short-term
construction process. However, Mitigation Measure 4.15a of the 1999 IS /MND would remain
applicable to the proposed project, requiring preparation of a TMP to ensure that adequate
emergency access is maintained.
Thus, no new significant impacts or substantial increase in the severity of impacts would occur
in regards to public services as a result of project revisions.
Recreation
The proposed project site would be substantially reduced in size in comparison to previous
versions of the project description. The project's impact area would be limited to a small area
south of the 1-405 /Seal Beach Boulevard interchange.
DECEMBER 2010 PAGE 10
Sfir2 a
���'" '%�;'r• CITY OF SEAL BEACH
ADDENDUM IS /MND FOR INTERSTATE 405 /SEAL BEACH BOULEVARD IMPROVEMENT PROJECT
'i�fCtilY gyp`
Given that the revised project would include minor roadway modifications along Seal Beach
Boulevard, the project would not increase the use of recreational facilities or require
construction or expansion of recreational facilities. Thus, no new significant impacts or
substantial increase in the severity of impacts would occur in regards to recreational facilities as
a result of project revisions.
Transportation/Traffic
The revised project description would result in median and widening improvements along Seal
Beach Boulevard that would result in improvements to vehicular safety and circulation. The
1999 IS/MND concluded that the project would result in a positive impact in relation to the traffic
load and capacity of the street system. Although the proposed project has been revised to be
substantially smaller in scale (in comparison to previous versions of the project description), the
increase in safety /circulation would similarly result in a positive impact.
In addition, the proposed project would not result in any significant impacts related to air traffic,
hazardous design features, or alternative transit facilities. Mitigation Measure 4.15a from the
1999 IS/MND would remain applicable to the project, and would minimize any short-term
construction related impacts to emergency access to a less than significant level.
Thus, no new significant impacts or substantial increase in the severity of impacts would occur
in regards to transportation and traffic as a result of project revisions.
Utilities and Services Systems
The proposed project site would be substantially reduced in size in comparison to previous
versions of the project description. The project's impact area would be limited to a small area
south of the 1-405 /Seal Beach Boulevard interchange.
Similar to previous versions of the project description, the project would not result in any
impacts related to wastewater or solid waste, since the project would include only roadway
improvements. The revised project would require water for landscape irrigation within the
proposed 14 -foot wide raised median; however, any water consumed by the project would be
nominal and could be served by extending irrigation facilities within the existing median within
Seal Beach Boulevard. In addition, the proposed project would include curb /gutter
improvements and would not alter drainage patterns within the site vicinity.
Thus, no new significant impacts or substantial increase in the severity of impacts would occur
in regards to utilities and service systems as a result of project revisions.
Mandatory Findings of Significance
Based on the impact comparison provided above, the revised project would not result in new
significant impacts or a substantial increase in the severity of impacts under CEQA. Thus, in
comparison to the analysis provided in the 1999 IS/MND, the revised project would not: a) result
in increased impacts related to degradation of the environment or impacts to biological or
cultural resources; b) result in increased cumulative impacts; or c) result in increased substantial
adverse effects on human beings, either directly or indirectly.
DECEMBER 2010 PAGE 11
O B
M r ei CITY OF SEAL BEACH
P ._ _ ADDENDUM IS /MND FOR INTERSTATE 405 /SEAL BEACH BOULEVARD IMPROVEMENT PROJECT
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5. CONCLUSION
§15073.5 of the CEQA Guidelines states that a lead agency is required to recirculate an
IS /MND when a document has been substantially revised after public notice of its availability
has previously been given. However, recirculation is not required when new information is
added to the IS /MND, which merely clarifies, amplifies, or makes insignificant modifications to
the document. The project revisions described above in Section 3, Project Revisions do not
result in significant modifications. In addition, the impact comparison provided above
demonstrates that no new significant impacts or substantial increase in the severity of impacts
would occur upon implementation of the revised project description. Therefore, no recirculation
is required.
While the proposed changes do not warrant the recirculation of the IS /MND, this document
should be made part of the administrative record and transmitted to the City's decision - making
body along with the previously - approved 1999 /S /MND to provide clarification regarding
proposed changes outlined above and to comply with CEQA Guidelines §15164.
DECEMBER 2010 PAGE 12
ATTACHMENT A
Project Exhibits
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ATTACHMENT C
Biological Letter Report
HARMSWORTH ASSOCIATES
Environmental Consultants
October 29, 2010
Alan Ashimine
Environmental Services
RBF Consulting
14725 Alton Parkway
Irvine, CA 92618
Dear Mr. Ashimine,
Re: Seal Beach Boulevard off -ramp
This letter report presents the findings of a site assessment and focused nesting bird
survey conducted at the Seal Beach Boulevard off -ramp project site, Orange County,
California. The survey was conducted under contract to RBF Consultants.
On October 27 2010, Harmsworth Associates biologist Brian Karpman, conducted the
site assessment and focused nesting bird survey at all portions of the off -ramp project
site. Surveys were conducted during the morning hours when bird activity is highest.
The project area consisted primarily of ice plant (Mesembryanthemum sp.) and bare
ground. A few caster bean (Ricinus communis) and Russian thistle (Salsola tragus) were
also present. A stand of blue gum (Eucalyptus sp.) and a Mexican fan palm
(Washingtonia robusta) occurred adjacent the site.
No active bird nests were detected within the site boundaries. The eucalyptus trees do
not have any current or old raptor nests but they have the potential to support nests during
the breeding season. The only wildlife present during the site visit was an American
kestrel (Falco sparverius).
The project site does not support any native habitats, sensitive habitats, wetlands or
streambeds. The site does not support any special status species plant or wildlife
species and has no potential to support any special status species.
I Special status plant species = federal or state listed threatened or endangered species, or proposed
endangered, threatened or candidate species, California Native Plant Society Species List (CNPS list 1 -4),
or otherwise sensitive species.
2 Special status wildlife species = federal or state listed threatened or endangered species, or proposed
endangered, threatened or candidate species, or otherwise sensitive species.
29 Vacaville, Irvine, California 92602 — (714) 389 -9527 — Cell (714) 287 -4986 — pgalvin9 @cox.net
Currently, there are no biological constraints at the project site; but if construction is
delayed until the raptor nesting season (February through July); then an additional nesting
bird survey should be conducted onsite.
If you have any questions or require additional information, please call me at (714) 389-
9527.
Sincerely
Harmsworth Associates
r j (7
Paul Galvin, M.S.
Vice President
29 Vacaville, Irvine, California 92602 — (714) 389 -9527 — Cell (714) 287 -4986 — pgalvin9 @coa.net
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29 Vacaville, Irvine, California 92602 — (714) 389 -9527 — Cell (714) 287 -4986 — pgalvin9 @cox.net