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HomeMy WebLinkAboutCC AG PKT 2011-01-10 #R AGENDA STAFF REPORT DATE: January 10, 2011 TO: Honorable Mayor and City Council THRU: Patrick P. Importuna, City Manager FROM: Sean Crumby P.E., Director of Public Works SUBJECT: STATUS UPDATE ON COLLEGE PARK WEST SR22 /STUDEBAKER ROAD OFF RAMP IMPROVEMENT SUMMARY OF REQUEST: The City Council is asked to: 1. Adopt Resolution No. 6103 selecting Option 2 from the Traffic Study Report for Proposed Improvements to College Park Drive at SR -22 Ramps and Studebaker Road (copies available for review are in the City Clerk's office and the Mary Wilson Library), and 2. Adopt Resolution No. 6104 amending a contract with Willdan Engineering for $115,900 to prepare plans, specifications, estimate and Caltrans permit related to SR 22 /Studebaker Road. BACKGROUND: For many years, ingress and egress to the College Park West (CPW) community has been negatively impacted by traffic using the westbound on /off ramp for SR 22. This roadway is a multi - jurisdictional freeway off -ramp operated by Caltrans and located in the City of Long Beach. The City of Seal Beach desires to see improvements to the intersection at the entrance and exit to College Park West. This intersection also serves a neighborhood in the City of Long Beach. The intersection is located at College Park Drive and the SR 22 westbound Studebaker Road on /off ramp in the City of Long Beach. As residents of Seal Beach and Long Beach exit from College Park Drive, which terminates at the SR 22 off -ramp, the residents must stop until it is safe to proceed. College Park Drive and the SR 22 off -ramp is a stop controlled "T" intersection. At various times of the day, including the morning, noon and evening peak hours, vehicles Agenda Item R Page 2 wait an inordinate amount of time to exit from these residential areas due to the continuous stream of vehicles coming on and off the freeway. There is little concern for local Long Beach residents because they have an alternative exit through their tract. The City of Long Beach restricts access for Seal Beach residents to this alternative during the most critical times by way of a right turn prohibition at Salida Avenue. On December 8, 2008, the City Council approved an agreement to employ Willdan Engineering to prepare a feasibility study and recommend improvements for the Studebaker and College Park Drive Intersection. Willdan Engineering provided four concepts to improve the intersection. On December 14, 2009 after numerous meetings with the City of Long Beach and Caltrans the City authorized a contract amendment with Willdan to prepare concept drawings to present to Caltrans, Long Beach and OCTA. Those conceptual drawings were prepared and presented to Caltrans District 7 (Los Angeles), District 12 (Orange County), and the City of Longs Beach. All agencies are understanding of the situation and are supportive of our efforts to make improvements. Since the subject location actually is in Caltrans District 7, the City of Seal Beach needs the support of District 7 for any improvements made to this intersection. Four concepts or alternative were analyzed including a requested round about by Caltrans. On Saturday November 7, 2009, staff held a Public Meeting at Edison Park informing the residents of College Park West four proposed options that were prepared to improve said intersection. During that meeting residents of College Park East voted in favor of pursuing the Option 1 with the addition of a second lane on the off ramp. This revised option was now termed "Option 1A ". The City's consultant (Willdan Engineering) incorporated the community's comments. A brief explanation of the revised concepts is as follows: Option 1 $899,175 Install a traffic signal at the intersection of the SR -22 Ramps and College Park Drive. Option 1A $1,179,525 Install a traffic signal at the intersection of the SR -22 Ramps and College Park Drive, and widen the SR -22 Off -Ramp from one lane to two lanes between the SR -22 Freeway and College Park Drive. Option 1B $1,105,800 Install a traffic signal at the intersection of the SR -22 Ramps and College Park Drive, and widen the SR -22 Off -Ramp from one lane to two lanes between the SR -22 Freeway and College Park Drive, making the second lane a northbound right turn only lane onto College Park Drive. Page 3 Option 2 $448,125 Modify the intersection of the SR -22 Ramps and College Park Drive to provide an acceleration lane on the westbound on -ramp for motorists making left turns from College Park Drive, provide a free -right turn lane from College Park Drive to the offramp, and provide a left turn lane from the on -ramp onto College Park Drive. Option 3 $1,537,687 Limit access from College Park Drive to right turns only onto the SR -22 Ramps and allow U -turns at the SR -22 Ramps and Studebaker Road to provide a way for motorists on College Park Drive to access the on -ramp and get on the freeway going westbound. Option 4 $1,432,237 Construct a roundabout at the intersection of the SR -22 Ramps and College Park Drive. In April of 2010 the City Council adopted a resolution supporting Option 1A from the conceptual study. Additionally at this time a detailed traffic study was presented with detailed traffic modeling of the various alternatives. On July 12, 2010 the City Council approved authorization of sending a request to both Caltrans Districts allowing the City of Seal Beach to become the lead agency in delivery of improvements to the intersection. Staff became aware of a Caltrans project to resurface a portion of the ramp. In this letter request, the City asked for $250,000 from Caltrans as a contribution toward the project. Additionally, at this time a second amendment was approved for Willdan Engineering to bring the plans from a conceptual level to preliminary design and conduct detailed surveying of the intersection. Over the past six months staff, in conjunction with elected officials from Seal Beach have met with the offices of Dana Rohrabacher, Tom Harmon, Jim Silva, John Moorlach, Bonnie Lowenthal, and Gary DeLong. Numerous meetings have been held with both Caltrans districts and the City of Long Beach. Due to the City's continued requests and detailed study both agencies have increased their interest in the project. Both Caltrans and the City of Long Beach have agreed that they are not in favor of any option (1A) that includes installation of an additional traffic signal on the Studebaker Ramp. In fact they are both in favor Option 2 from the City of Seal Beach traffic studies. Caltrans has stated that stopping traffic in that area will back onto the freeway. They are also not in favor of a second lane for the exit as the weaving pattern is unsafe with radius of the exit. Caltrans has agreed to allow the project to happen and contribute $250,000 toward the improvements. Page 4 The City of Long Beach has provided the surveying for the project (relieving Seal Beach of doing so), and agreed to prepare the environmental permitting for the project. Both agencies are making their offers based upon the City of Seal Beach moving forward with Option 2. Option 2 will improve the traffic flow in the intersection by providing a protected right turn for traffic exiting College Park Drive. Additionally, the ramp will be widened to provide a protected left turn pocket for traffic turning onto College Park Drive. If this action is approved it is anticipated that the design will be completed in the spring of 2011. Additionally, Willdan Engineering will be processing the Caltrans Encroachment Permit and preparing any additional studies requested by Caltrans. Upon completion of the construction documents the City of Long Beach will complete all of the environmental permitting required by Caltrans. It is anticipated that the encroachment permit application can be submitted to Caltrans in the Summer of 2011. Bidding and construction can follow immediately after authorization is received from Caltrans. Any timeframe for construction will be coordinated with the West County Connector's project that is beginning construction in January of 2011. FINANCIAL IMPACT: Staff recommends an increase of $115,900 to the existing professional services agreement. $100,000 is the fee to prepare construction documents, and process all permitting through Caltrans. $15,900 is budgeted for preparation of an Aerially Lead Deposit investigation. This study may be required by Caltrans during the permit process. If Caltrans does not require this study the fee will be reduced to $100,000. Funds will be programmed through account number 001- 042- 44000, Engineering Contract Professional Services. (Budget Amendment No. 11- 07 -01) RECOMMENDATION: The City Council is recommended to: 1. Adopt Resolution No. 6103 selecting Option 2 from the Traffic Study Report for Proposed Improvements to College Park Drive at SR -22 Ramps and Studebaker Road (copies available for review are in the City Clerk's office and the Mary Wilson Library), and 2. Adopt Resolution No. 6104 amending a contract with Willdan Engineering for $115,900 to prepare plans, specifications, estimate and Caltrans permit related to SR 22 /Studebaker Road. Page 5 SUBMITTED BY: NOTED AND APPROVED: • rit dk Sean Crumby, P.E. Pa rick P. Importuna, City Manager Director of Public Works Attachments: A. Concept Drawing for Option 2 B. Resolution No. 6103 C. Resolution No. 6104 D. Contract Amendment with January 3, 2011 Proposal RESOLUTION NUMBER 6103 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SEAL BEACH, CALIFORNIA SELECTING OPTION 2 FROM THE TRAFFIC STUDY REPORT FOR PROPOSED IMPROVEMENTS TO COLLEGE PARK DRIVE AT SR -22 RAMPS AND STUDEBAKER ROAD WHEREAS, The City of Seal Beach recognizes a traffic impairment at College Park Drive and the SR 22 westbound Studebaker Road on /off ramp in the City of Long Beach; and WHEREAS, The City employed Willdan Engineering to prepare options to improve said intersection; and WHEREAS, Willdan prepared a draft Traffic Impact Study with findings to meet the City's goal in improving said intersection labeled as Option 2 in the Traffic Study Report for Proposed Improvements to College Park Drive at SR -22 Ramps and Studebaker Road dated March 5, 2010. THE SEAL BEACH CITY COUNCIL DOES HEREBY RESOLVE: Section 1. Selects Option 2 from the Traffic Study Report for proposed improvements to College Park Drive at SR -22 Ramps and Studebaker Road dated March 5, 2010. Section 2. Rescind Resolution 5986 (Adopted on April 12, 2010) adopting Option 1A as the preferred alternative for proposed improvements to College Park Drive at SR -22 Ramps and Studebaker Road dated March 5, 2010 PASSED, APPROVED AND ADOPTED by the City Council of the City of Seal Beach, at a regular meeting held on the 10th day of January , 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 } I, Linda Devine, City Clerk of the City of Seal Beach, do hereby certify that the foregoing resolution is the original copy of Resolution Number 6103 on file in the office of the City Clerk, passed, approved, and adopted by the City Council at a regular meeting held on the 10th day of January , 2011. City Clerk RESOLUTION NUMBER 6104 A RESOLUTION OF THE SEAL BEACH CITY COUNCIL APPROVING AN AMENDMENT TO THE AGREEMENT DATED DECEMBER 8, 2008 BETWEEN THE CITY AND WILLDAN ENGINEERING FOR ENGINEERING SERVICES IN CONNECTION WITH THE COLLEGE PARK WEST INTERSECTION IMPROVEMENT PROJECT The City Council of the City of Seal Beach hereby resolves as follows: SECTION 1. The City Council hereby approves an Amendment, dated January 10, 2010, to the Agreement between the City and Willdan Engineering for engineering services in connection with the College Park West Intersection Improvement Project. In no event shall the City pay Willdan more than $100,000 for the additional services authorized by said Amendment. SECTION 2. The Council hereby directs the City Manager to execute the Amendment on behalf of the City. SECTION 3. The City Clerk shall certify to the passage and adoption of this resolution. PASSED, APPROVED AND ADOPTED by the City Council of the City of Seal Beach, at a regular meeting held on the 10th day of January , 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 } I, Linda Devine, City Clerk of the City of Seal Beach, do hereby certify that the foregoing resolution is the original copy of Resolution Number 6104 on file in the office of the City Clerk, passed, approved, and adopted by the City Council at a regular meeting held on the 10th day of January , 2011. City Clerk 0 W N J Q Z "� h S i � { \ - � 'r vd.' 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F ; , k +i': r e rte" ,.,, w z � c v - x ^` � • 'k' �` "x "+ pa ` X . ✓ °' �* 't ma y .-,, ,�' � �� x 5 SECOND AMENDMENT TO THE AGREEMENT FOR ENGINEERING SERVICES - SR-22/STUDEBAKER ROAD FEASIBILITY STUDY between _ SEAL �c a i *• 4 C . FR 1g. City of Seal Beach 211 - 8th Street Seal Beach, CA 90740 Willdan Engineering 2401 East Katella Avenue, Suite 450 Anaheim, California 92806 -6073 Fax: (714) 978 -8299 THIS FIRST AMENDMENT is made and entered into January 10, 2011, by and between the City of Seal Beach, a municipal corporation ( "City ") and Wlldan Engineering, a California corporation ( "Consultant "). 1 RECITALS A. City and Consultant are parties to an Agreement for engineering services in connection with the SR -22 /Studebaker Road Feasibility Study, dated December 8, 2008 ( "Agreement "). B. City and Consultant mutually desire to amend the Agreement to add additional services to the work performed by Consultant. NOW, THEREFORE, in consideration of performance by the parties of the promises, covenants, and conditions herein contained, the parties agree as follows: FIRST AMENDMENT 1. The Council hereby amends Section 1 (Consultant's Services) by adding a subsection 1.5 to read as follows: "1.5 Additional Services. Subject to the terms and conditions set forth in the Agreement, City hereby engages Consultant to perform the additional services ( "Additional Services ") set forth in the "Proposal to Provide Additional Services" dated January 3, 2011, attached hereto as Exhibit A, and incorporated by this reference." 2. The Council hereby amends Section 3 (Compensation and Expense Reimbursement) by amending subsection 3.2 to read as follows: "3.2. Compensation for Additional Services. City shall pay Consultant for the Additional Services at Consultant's standard hourly rates. In no event shall the City pay Consultant more than a maximum of $100,000.00 for such Additional Services. 3. All other terms and provisions of the Agreement shall have full force and effect. 4. The Council hereby directs the City Clerk to attach this First Amendment and Exhibit A to the Agreement. 2 IN WITNESS WHEREOF, the parties, through their respective authorized representatives, have executed this First Amendment as of the date first written above. CITY OF SEAL BEACH CONSULTANT B y : 411,e7 David Carmany, City Manager By: !'�1 Name: Daniel Chow Attest: Title: President By: By: ©c,-__c Linda Devine, City Clerk Name: Dave Hunt Title: Senior Vice President Approved as to Form: By: Quinn Barrow, City Attorney 3 EXHIBIT A S7296- 020011243613v 1.doc W WILIDAN E Engineering 1 January 3, 2011 Mr. Michael Ho City Engineer City of Seal Beach 211 Eighth Street Seal Beach, CA 90740 SUBJECT: Proposal to Provide Additional Services — Studebaker Road /College Park Drive. PSE in the City of Long Beach Dear Mr. Ho: Willdan is pleased to submit this proposal to the City of Seal Beach to provide consulting services to assist the City on Studebaker Road -SR22 Ramps /College Park. Drive improvements within the City of Long Beach. We propose to perform the base services based on hourly rates with a not -to- exceed maximum of $100,000 with optional services for $17,840 (see attached scope of services and fee matrix). We appreciate the opportunity to submit our proposal and look forward to working with the City of Seal Beach. If you have any questions, please contact Eric Wiebke at (714) 978-8209 or evviebke@willdan.com. Sincerely, Wilidan Engineering. X f Kenneth C. Taylor, P.E. Director of Engineering E:1Proposals 20101Seal Beach \City of Seal Beach Studebaker Revised PSE Proposal 1 -3 -i 1.doc Introduction • The City of Seal Beach proposes to improve the intersection of the SR22 /7 Street westbound freeway Studebaker Road off -ramp and College Park Drive located in the City of Long Beach. The intersection is currently one lane in each direction in all approaches. The scope of work will add a dedicated southbound left turn and add an additional northbound through lane with striping, grading and paving improvements. The primary goal of the project is to provide a safe ingress /egress to the subdivision from College Park Drive which serves the community of Seal Beach. The proposed project is shown in Exhibit A. Caltrans has a pavement maintenance project (Contract No. 07- 2P6305) at this location and has requested that their plan set be combined into the City's project. This project will be processed through Caltrans — District 7 as a standard encroachment permit. Enclosed is the project design schedule for completion. Work Statement Technical Approach Task 1. Completion of 100% Plans, Specifications, and Estimate Subtask 1.1 — Prepare Title Sheet Prepare a title sheet for the project that meets City standards, if any or we will use our standard Willdan sheet. Subtask 1.2 — Prepare Typical Cross Section Plan Prepare a typical cross section plan to reflect the design of the widening of Studebaker Road, which will show existing improvements with the proposed improvements including the structural pavement section. Subtask 1.3 — Prepare Layout Plan Prepare layout sheets that will contain the necessary data to construct the proposed civil improvements and to join the existing improvements. The proposed civil improvements are defined as the pavement widening on both sides of Studebaker Road. Subtask 1.4 — Prepare Profile, Superelevation Plan Prepare profile and superelevation sheets that will contain the necessary data to construct the proposed civil improvements and to join the existing improvements. Subtask 1.5 — Prepare Grading Plans Prepare project grading plans for Studebaker Road improvements which will show the contour grading and topography. Subtask 1.6 — Prepare Construction Detail Plan Prepare a construction detail plan that will contain the necessary data to construct the proposed civil improvements and to join the existing improvements. 1 Subtask 1.7 — Prepare Drainage Plan Prepare drainage plan and profile sheets that will contain the necessary data to construct the proposed drainage culverts /inlets and to join the existing improvements. Subtask 1.8 — Prepare Pavement Delineation Plan Prepare one (1) pavement delineation plan at a scale of 1 " =40' for the SR22 Ramps- Studebaker Road /College Park Drive Intersection. Subtask 1.9 — Prepare Sign Plan Prepare one (1) sign plan at a scale of 1 " =40' for the SR22 Ramps- Studebaker Road /College Park Drive Intersection. Subtask 1.10 — Prepare Pavement Delineation and Sign Quantity Plan Prepare one (1) plan for the SR22 Ramps Studebaker Road /College Park Drive Intersection. Subtask 1.11 Prepare Street Lighting Plans Prepare parking lot and site access lighting plans at a scale of 1 " =40', including poles and luminaires, service facilities, and conduits and wiring, As part of the lighting design, Willdan will prepare lighting calculations to determine the appropriate lighting equipment types and placements necessary to meet required lighting levels. The design will also consider the use of energy efficient lighting fixtures such as LED's for energy conservation. Subtask 1.12 — Prepare Stage Construction Plans Prepare five (5) stage construction plans at a scale of 1"=40' for the SR22 Ramps- Studebaker Road /College Park Drive Intersection. Subtask 1.13 — Prepare Detour Plans Prepare one (1) detour plan, scale to be determined, for the SR22 Ramps- Studebaker Road /College Park Drive Intersection. Subtask 1.14 — Prepare Sign Construction Plans Prepare one (1) sign construction plan at a scale of 1 " =40' for the SR22 Ramps- Studebaker Road /College Park Drive Intersection. Subtask 1.15 — Prepare Stage Construction Quantity Plans Prepare one (1) plan for the SR22 Ramps Studebaker Road /College Park Drive Intersection. Subtask 1.16 — Prepare Utility Plans Prepare utility sheets at a scale of 1 "= 40' for the SR22 Ramps- Studebaker Road /College Park Drive Intersection. • Subtask 1.17 — Utility Documentation Review Willdan shall prepare and send utility notifications to the utility companies and other agencies with facilities within the limits of the project. Each notice will contain a letter requesting available atlases, as- builts, and proposed utilities within the project limits. The requests will also include a copy of the Tomas Bros. Map pages with the project area highlighted and a response sheet. Subtask 1.18 Utility Coordination Preliminary costs estimates and schedules will be requested from each utility company for which any utility relocation is required. Willdan will coordinate with affected agencies and determine requirements for various permits necessary for the project. Willdan shall submit a set of the preliminary plans to each affected utility 2 company for comments. We shall then submit a set of final plans to each affected utility company and affected agency, with final notification for completion of utility work. Subtask 1.19 — Prepare Geotechnical Report Willdan proposes to provide personnel, and material to perform the following scope of work: Pre - Construction Investigation and Design • Prepare and file an Encroachment Permit package with the California Department of Transportation ( "Caltrans "). We have assumed that you will arrange for any other required access permissions and /or permits from other local, state or federal agencies which may have jurisdiction over the project area. • Mark the boring locations and obtaining underground utility clearance. • Conduct subsurface investigation and sampling utilizing a light drill rig or hand - augering. The investigation will consist of drilling shallow holes at six (6) locations along the western edge of the subject ramp, within the proposed widening zone. The borings will be advanced approximately 5 feet into the subgrade to assess the condition of the existing subgrade and collect subgrade soil samples from each location. The subgrade soils samples will be tested in the laboratory to determine their index properties and R- value. Laboratory R- values will be used to determine the thickness of the • various pavement section layers required to meet the traffic carrying capacity requirements (to be provided by you or your client). All the boring locations will be backfilled with excavated soils immediately after drilling is complete at each location. . • We have assumed that no active traffic control will be required: We will provide passive traffic control. • Laboratory testing of representative subgrade soil samples collected during the investigation to determine the relevant engineering properties. Laboratory testing will consist of all or some of the following: 1. In -place moisture content 2. Expansion Index 3. Atterberg Limits 4. Gradation 5. R -value of existing subgrade soils • Engineering Design and Preparation of a draft and final report presenting (4 copies): 1. A map showing the approximate locations of the boreholes; 2. Logs with description of subgrade soils to the final depth of investigation at each location; 3. Summaries of laboratory test results; and 4. Pavement section design recommendations for provided Traffic type and volumes. Subtask 1.20 - Prepare Water Pollution Control Program A conceptual Water Pollution Control Program (WPCP) will be prepared to be in conformance with the State's Encroachment Permit for disturbed soil less than one acre. In order to provide the best cost savings to the City, a WPCP will be prepared listing plausible proposed BMPs to prevent severe erosion and prevent pollutants from entering the surface waters of the United States. Subtask 1.21 — Prepare Specifications, Bid Schedule and Cost Estimates Prepare project special provisions, construction item bid schedule, quantity estimates and associated construction cost estimate. Willdan will prepare technical special provisions in Standard Specification for Public Works Construction (SSPWC) based on the construction work included in the final plans. The City shall provide front -end "boilerplate" specifications digitally in Word format for use in the final project specifications. A bid schedule will be prepared identifying the bid items consistent with the technical specifications as well as 3 the bid item quantities. A cost estimate will also be prepared for each submittal using unit prices based on cost data collected from recent construction project. Specifications, bid schedule and cost estimates will be prepared and submitted with the milestone plan submittals of 65% and 95 %: Subsequent to addressing review comments from the 95% submittal, Willdan will provide the City a final set of specifications and estimate in hard copy as well as Word, Excel and PDF. Subtask 1.22 Project Management Perform project management duties to maintain the project team and schedule. Willdan will supervise, coordinate, monitor and review design for conformance with City standards, policies and procedures and facilitate project delivery. Staffing needs are reviewed regularly to meet project design schedules and the project design budget is tracked to confirm design efforts are consistent with project deliverables. Subtask 1.23 Process Caltrans Encroachment Permit Process the project encroachment permit application through Caltrans - District 7 through approval. Subtask 1.24 — Reimbursable Expenses Provide printing, delivery and mail services as required to produce and provide project deliverables to the City. Willdan will provide reproduction services including photocopying and plotting for required meeting documents, exhibits, plans, reports as requested by the City and as identified in the Task I. A 15% markup will be added to all outsourced reimbursable expenses. The City will provide all reproduction services of the final bid documents for advertisement. Mileage for Willdan project team members to travel to and from the project site and to attend project meetings as required in the scope of work will be included as reimbursable expenses at the current federal mileage rate at the time of invoicing. Assumptions • City will provide a sample set of plans, specifications, electronic border, general notes, vicinity map and standard construction details (if applicable) for use in preparing the plan sheets. • City will provide copies of all record drawings and documentation of City owned utilities, street improvements, developments plans, etc. adjacent to and relative to the proposed site improvements. • Technical specifications and cost estimates for utility relocations will be prepared by the respective agency. • SUSMP is not a part of this proposal. • A Hydrology and Hydraulic Report is not part of this proposal. • The project will be processed through Caltrans as a standard encroachment permit. • Determination, preparation and implementation of NPDES permit requirements will be performed by the City and /or contractor. • City will provide bid advertisement and administration of the bidding process. • City will prepare the necessary legal documents for property acquisition and temporary construction easements on private property for design and /or construction purposes. • Survey and design efforts on private property are not included; private property improvements will be protected in place. Optional Tasks. Prepare Aerial Deposited Lead Investigation Willdan proposes to provide personnel, and material to perform the following scope of work: Evaluate the Presence of Aerially Deposited Lead (AOL) in Soil • Prepare and file an Encroachment Permit package with the California Department of Transportation ( "Caltrans "). We have assumed that you will arrange for any other required access permissions and /or permits from other local, state or federal agencies which may have jurisdiction over the project area. 4 • Prepare a site- specific health & safety plan. This plan will be prepared in general accordance with the Occupational Safety and Health Administration (OSHA) regulations, as specified in Title 29 of the Federal Code of Regulations to ensure the safety of site personnel conducting field work. • Prepare a work plan for site soil investigation. We will develop a work plan detailing the methods and procedures to be used for the proposed environmental site investigation to evaluate the presence of ADL in soil (and, if required, petroleum hydrocarbons and volatile organic compounds, VOCs). The work plan will include a description of field procedures and equipment, and laboratory analyses. • Mark the boring locations and obtaining underground utility clearance. • Conduct soil sampling in six (6) boreholes. The boreholes will be advanced using a 1- steel hand auger to a total depth of 5 feet below existing ground surface (bgs). Undisturbed, discrete soil samples will be collected from each borehole for lithologic description and laboratory analysis to evaluate the presence of ADL (and, if required, petroleum hydrocarbons and VOCs) at depths of 0.5, 1, 2, 3 and 5 feet bgs using a hand -held drive sampler fitted with brass rings. Upon recovery of the drive sampler, the brass rings containing the soil samples will be sealed with Teflon tape and capped with plastic end caps, placed in ziploc bags, labeled and placed on ice pending delivery to the analytical laboratory. A portion of each soil sample will be contained in a ziploc bag and screened with a photoionization detector (PID) to field -test for the presence of volatile organic compounds (VOCs). The results of field screening for the presence of VOCs will be recorded on the lithologic borehole logs. For QA/QC purposes, five duplicate soil samples will be collected for laboratory analyses (if testing for TPH and VOCs is required, then the results of VOC- headspace screening will be used to select and retain up to three samples from each borehole for laboratory analysis. Soil samples selected for petroleum hydrocarbons and VOCs analyses will be collected in accordance with United States Environmental Protection Agency (USEPA) Method 5035. Prior to sample collection, the sampler will be disassembled and subjected to a three -stage decontamination, beginning with a non - phosphate detergent solution, followed by rinsing with potable and distilled water. Equipment blank samples will be collected by rinsing soil sampling equipment with distilled water and collecting the rinsate water in a sample bottle. Analytical results obtained from the equipment blank will be used to assess the effectiveness of sampling equipment decontamination procedures. Field blank and trip blank samples will be prepared to evaluate ambient environmental conditions at the Project Site and during transport to and from the laboratory. Waste produced during drilling and sampling activities will be placed in clearly labeled 55- gallon drums and carefully stored at the Project Site pending receipt of analytical results. Upon receipt of analytical results and upon completion of waste characterization, the waste drums will be removed from the Project Site for proper disposal. Upon completion of drilling and sampling activities, the hand auger boreholes will be grouted full depth with bentonite grout, if required. We have assumed in the above that all field work can be completed in Level D PPE. Additional field time will be required and higher costs will be incurred If a higher level of protection is required. We have assumed that no active traffic control will be required. We will provide passive traffic control. • Laboratory Analyses Following sample collection, samples retained for laboratory analysis will be immediately transferred to an ice -chest and delivered under chain of custody to a state - certified environmental laboratory. Laboratory QA/QC procedures, including the analysis of method blanks, laboratory control samples, and matrix spikes will be followed as prescribed in the work plan. 5 Soil samples collected from each borehole will be submitted for the following laboratory analyses: a) Total Lead content using USEPA Method 6010. (30 primary samples and 5 duplicate samples); b) Samples with reported total lead concentrations greater than 50 milligrams per kilogram (mg /kg) and less than 1,000 mg /kg will be analyzed for soluble lead [soluble threshold limit concentration (STLC)] using the California WET method using citrate in accordance with USEPA Method 6010B -STLC. For purposes of this proposal, it is assumed that 18 samples will be analyzed for soluble lead using the WET method; c) Samples with reported soluble lead (STLC) concentrations greater than 5.0 milligrams per liter (mg /L) will be analyzed for soluble lead in accordance with USEPA Method 60108 -DI WET, using a de- ionized (DI) water extraction. For purposes of this proposal, it is assumed that 9 samples will be analyzed for soluble lead using the DI WET method; d) Twenty-five (25 %) of all samples will be analyzed for soluble lead using the toxicity characteristic leaching procedure (TCLP) in accordance with USEPA Method 1311 (this proposal assumes 9 samples). TCLP analysis will be performed on samples with the highest total lead concentrations; e) Ten percent of all soil samples (this proposal assumes 4 samples) will be analyzed for pH using EPA Method 9045C; f) If required, three soil samples will be analyzed from each borehole for total petroleum hydrocarbons (TPH) in accordance with USEPA Method 8015 Modified for gasoline and diesel (18 primary and 3 duplicate samples total); and g) If required, three soil samples will be analyzed from each borehole for VOCs in accordance with USEPA Method 8260B. This proposal assumes 18 primary and 3 duplicate soil samples total. • Statistical Analysis and Reporting: Upon receipt of the results of laboratory analyses of soil samples, a statistical analysis of the total lead data will be completed. Statistical summaries will be developed using the USEPA software ProUCL. This software provides the 95 percent upper confidence limit (UCL) for different data distribution types and recommends the most appropriate value to use for representing the data. Statistical data including the arithmetic mean, median, minimum measured concentration, maximum measured concentration, standard deviation, and 90 and 95 percent upper confidence limits of the mean will be provided. Upon completion of the above listed tasks, a draft report documenting the results of the site investigation will be prepared and submitted to Willdan for review and comment. The report will include: a) Description of the investigation methodologies including drilling and sample collection; b) Summary of the data analysis and results; c) Brief discussion of the investigation results, including the extent of impacted areas of soil relative to human health risk screening levels for petroleum hydrocarbons and VOCs and Caltrans protocols for the disposition of ADL; d) Conclusions and recommendations; e) Figures depicting the Project Site and borehole location, tables containing summarized analytical data; and f) Appendices containing borehole logs, field data forms, and analytical laboratory reports. 6 Respond to Bidder Questions Review and provide answers to contractor questions during the bidding process. Willdan will assist the City during the bidding process by responding to Requests for Information (RFIs) and issuing addenda as necessary. 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