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CITY OF LATHROP — CONSULTING SERVICES AGREEMENT AMENDMENT NO. 1
WITH CAROLLO FOR LATHROP AQUIFER STORAGE AND RECOVERY WELL DESIGN SERVICES, CIP PW 22- 36
2) Compensation. Section ( 2) of the AGREEMENT for Consulting Services is hereby amended as follows:
City hereby agrees to pay CONSULTANT an additional sum of 1 547 242 for services set forth in Tasks 1- 6 listed of Exhibit " A" of this Amendment No. 1, with a total sum not to exceed of $ 1, 848, 986 ($ 301, 744 for the original AGREEMENT, 1, 547, 242 for AMENDMENT NO. 1). CONSULTANT shall be paid within thirty 30) days of receipt of billings containing all information contained in Paragraph 5 of the original AGREEMENT. Compensation for any task must be equal to or less than the percentage of task complete. In no event shall CONSULTANT be entitled to compensation for work not included in the original scope of work and this AMENDMENT unless a written change order or authorization describing the extra work and payment terms has been executed by CITY' S Authorized Representative prior to the commencement of the work.
3) Effective Date and Term
The effective date of AMENDMENT NO. 1 is April , 2023, and it shall terminate no later than June 30, 2024. All other terms of the original AGREEMENT shall remain in full force and effect.
4) Applicabilitv to Oriqinal Consultant AGREEMENT
All terms and conditions set forth in the AGREEMENT dated January 10th, 2022 are still in effect and are incorporated by reference herein and said AGREEMENT is incorporated by reference herein.
5) Siqnatures
The individuals executing this AMENDMENT NO. 1 represent and warrant that they have the right, power, legal capacity, and authority to enter into and to execute this AMENDMENT NO. 1 on behalf of the respective legal entities of the CONSULTANT and the CITY. This agreement shall inure to the benefit of and be binding upon the parties hereto and their respective successors and assigns.
705
CITY OF LATHROP - CONSULTING SERVICES AGREEMENT AMENDMENT NO. 1
WITH CAROLLO FOR LATHROP AQUIFER STORAGE AND RECOVERY WELL DESIGN SERVICES, CIP PW 22- 36
Approved as to Form: City of Lathrop
City Attorney
y y_ z ` 3
Salvador Navarrete Date
Recommended for Approval: City of Lathrop
Public Works Director
Michael King Date
Approved by: City of Lathrop
390 Towne Centre Drive
Lathrop, CA 95330
Stephen J. Salvatore Date
City Manager
Consultant: Carollo Engineers, Inc.
2880 Gateway Oaks Drive, Suite 300
Sacramento, CA 95833
Federal ID #
Business License #
Signature Date
Print Name and Title
Signature Date
Print Name and Title
Page
7063 of 3
EXHIBIT A
SCOPE OF SERVICES
CITY OF LATHROP
AND
CAROLLO ENGINEERS, INC.
AQUIFER STORAGE AND RECOVERY WELL DESIGN
PURPOSE OF PROJECT
This Scope of Services defines Carollo Engineers, Inc.' s ( CONSULTANT) scope, schedule, and budget for furnishing design services for the Aquifer Storage and Recovery ( ASR) Well Design Project ( Project). The project scope generally includes design of a new ASR well ( Well ASR1) with a proposed production capacity of 900 gpm ( aquifer storage of up to 1450 acre-feet per year[ AFY]), site mechanical improvements, electrical facilities, and ancillary piping. Treated surface water will be supplied to the ASR well from the nearby South San Joaquin Irrigation District ( SSJID) turnout ( see Attachment 1). Production water will be discharged to the existing storage tanks adjacent to the ASR well site.
This scope of services has been developed based on prior work and findings from the Aquifer Storage and Recovery Feasibility Study and Funding Support Project ( CIP PW 22- 36) and includes preliminary and detailed design, project bidding and engineering services during construction, ASR well commissioning, and related support tasks.
CONSULTANT' S SERVICES
CONSULTANT will perform the following services:
Task 1: Project Coordination and Administration
Task 2: Data Collection and Preliminary Design
Task 3: DWSAP Report and Outside Agency Permitting
Task 4: Detailed Design
o Package 1: ASR Well Drilling, Development, and Testing o Package 2: ASR Well Equipping and Site Improvements
Task 5: Permitting Assistance
Task 6: Bidding Assistance
Task 7: Package 1 ( Well Drilling) Engineering Services During Construction Task 8: Package 2 ( Well Equipping) Engineering Services During Construction Task 9: ASR Well Commissioning
Optional Task 10: Additional Monitoring Well Depth and Coring Optional Task 11: Grant Administration Support
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TASK 1 — PROJECT COORDINATION AND ADMINISTRATION
This task provides for the following:
Task 1. 1 Project Monitoring and Administration
Maintain project coordination between the City of Lathrop ( CITY) and CONSULTANT team members, including subconsultants. This task includes development of the QA/ QC plan and Project Guide, preparation of monthly status reports, internal team meetings, regular correspondence with team members, and review of work progress for quality and completion.
Monthly status reports will include the following:
Description of work completed in reporting period
Percentage complete to date by task and subtask
Schedule and budget status
Deliverable status
Key decisions and action items
Potential project issues
Task 1. 2 Kickoff and Project Progress Meetings
Monitor project schedule and budget on a continuous basis and prepare monthly invoices and progress reports for submittal to CITY.
This task includes one project kickoff meeting, monthly ( virtual) design progress meetings, and three project progress meetings to convene with CITY staff, discuss review comments, and track key decision items. The kickoff meeting will be held shortly after Notice to Proceed. Project progress meetings are scheduled to occur after CITY review of the draft Preliminary Design Report, 60% design, and 90% design deliverable milestones.
Task 1 Deliverables
QA/ QC Plan and Project Guide
Monthly invoices, project status reports, and schedule updates Meeting agendas and minutes
Decision item, action item, and comment log updates
Task 1 Meetinqs
Kickoff meeting ( in- person)
Preliminary Design Report review workshop ( in- person) 60% design review workshop ( in- person)
90% design review workshop ( in- person)
Monthly design progress meetings ( 12 assumed; virtual conference) TASK 2 — DATA COLLECTION AND PRELIMINARY DESIGN
This task provides for the following:
Task 2. 1 Data Collection and Review
Available project data will be collected and reviewed by CONSULTANT. This includes record drawings, local utility information, hydrogeologic data, groundwater quality information, water distribution system data, San Joaquin County Environmental Health Department data, and pw:l/Carollo_ 200000/ DocumentslCAlLathrop1200919- 000000\ 01 Project Managemenfl0l Pre- ContractlDesign Page 2 of 12 March 2023
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findings of previous work. Available data will be used to inform the other work items under this task.
Task 2. 2 Surveying and Mapping
This task includes completion of a design- level topographic survey by O' Dell Engineering. The survey extent includes the proposed ASR well site, portions of the adjacent tank site, and a portion of the paved access road leading to the project area. See Attachment 1 for project location. Record drawings for the tank site will be reviewed to determine approximate as- built locations of underground facilities for background site map development.
Task 2. 3 Geotechnical Investigation
ENGEO has completed prior geotechnical investigations and furnished geotechnical recommendation for other improvements at and adjacent to the project site. ENGEO will be retained to review prior geotechnical data and provided updated geotechnical recommendations for the following:
Earthwork and grading.
Evaluation and mitigation of geologic hazards.
Current seismic design parameters.
Approximate depth to groundwater.
Foundation recommendations for the ASR well building.
On- grade concrete slabs.
Flexible pavement improvements.
Structural improvements for this project are assumed to be limited to at- grade concrete equipment slabs, a wellhead pedestal, and a conventional single- story cement masonry unit CMU) building. ENGEO' s recommendations will be presented in a Geotechnical Report Update Memorandum and supplemented with existing geotechnical data that ENGEO has previously obtained in the immediate vicinity of the project site.
Task 2. 4 Monitoring Well Installation and Analyses
As described in the ASR feasibility study, Luhdortf& Scalmanini Consulting Engineers ( LSCE) will obtain the services of a licensed well driller to complete a second on- site monitoring well to an approximate depth of 900 ft below ground surface ( BGS). The monitoring well will be used to evaluate groundwater conditions to the stated depth and be used to determine the design depth of the ASR well.
Update Groundwater Moundinq Analvsis
The quantity of the available recharge water is a major consideration with regard to assessing the feasibility of recharge. LSCE will conduct screening level groundwater/ surface water modeling to assess the technical and practical feasibility of the proposed ASR project.
The groundwater modeling evaluation will simulate the effects of recharge on the water table and vadose zones and also be used as a tool to evaluate volumes and rate( s) of recharge and to simulate how the groundwater responds under various recharge scenarios. LSCE will build upon previous work to efficiently develop GIS mapping solutions, numerical modeling, and will utilize supplemental information from the CITY. LSCE will also utilize information developed by previously conducted pumping tests and will rely on that information to refine aquifer parameters. MODFLOW and MT3DMS will be used to estimate groundwater flow, pw:llCarollo_ 200000/ DocumentslCAlLathrop 200919-000000\01 Project Management101 Pre- Contract\ Design Page 3 of 12 March 2023
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mounding ( groundwater rising), travel times, underground retention times ( URT) and transport of recharge water. The modeling effort will yield calibrated aquifer parameters to augment future modeling efforts that will eventually be needed. The initial development of estimated injection volume will be conducted after the completion of Task 2. 1 ( data collection and review) and 2. 4 ( monitoring well installation) which will be critical to addressing the following questions:
Where may aquifer recharge be feasible, at what rates, and native water quality.
How much surface water may be available for recharging, when surface water is available, and what is its water quality.
How much water is required to meet existing and future demands.
Update Geochemical Modelinq
LSCE will build upon previous work to efficiently conduct the modeling update. Geochemical analysis for this ASR phase of the project will be preliminary, focusing on known or potential geochemical issues. For this desktop geochemical evaluation, the geochemical modeling program PHREEQC or Geochemist' s Workbench will be used to conduct a mixing analysis and to identify the potential for geochemical reactions that could result in a reduction in the injection efficiency of the ASR system. The chemistry of all potential water sources that might be mixed will need to be available including groundwater chemistry from all locations of potential injection wells as well as the chemistry of injected water. Mixing ratios will be derived from modeling efforts and the full spectrum of mixing ratios will be included in the modeling.
Task 2. 5 Preliminary Design Report
The Preliminary Design Report ( PDR) will serve as the basis for final construction documents.
The PDR will include findings and recommendations from the ASR feasibility study, data collection and review ( Task 2. 1), surveying and mapping ( Task 2. 2), geotechnical investigation Task 2. 3), and monitoring well installation ( Task 2. 4). Based on discussions with CITY staff, the ASR well will receive injection water from the nearby SSJID turnout; ASR well discharge water will be conveyed directly into the on- site CITY-owned storage tanks. Supplemental booster pumping out of the storage tanks is excluded from this scope of work.
The PDR will include a Class 5 estimate of probable construction cost as defined by AACE International and a preliminary construction schedule for project completion.
A draft PDR will be submitted for CITY review and then refined and resubmitted in final version following the PDR review meeting. All key decisions, action items, and responses to CITY comments will be tracked and submitted with the final PDR.
Task 2 Assumptions
CITY will furnish all available reports and studies, including hydrogeologic data, groundwater quality information, water distribution system data, and hydraulic model files where required.
Record drawings and as- built data for the SSJID and CITY improvements on the ASR well site will be sufficient for development of yard piping drawings; supplemental potholing and utility locating are excluded from this scope of work. pw:l/Carollo_ 200000/ Documents/ CA1Lathrop1200919- 000000101 Project Management101 Pre- Contract\Design Page 4 of 12 March 2023
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All project improvements will occur within the ASR well site and the adjacent ( existing) storage tank site as shown on Attachment 1.
Design of off- site improvements is excluded from this project.
Based on the ASR feasibility study, a pH adjustment system will be required prior to injecting SSJID- supplied water. Assumptions for the pH adjustment system include:
o SSJID water will be supplied at a pH ranging from approximately 7. 8 to 8. 0. o pH will be adjusted to down to approximately 7. 0 to 7. 2 prior to injection. o Recovered water pH will be raised from approximately 7. 0- 7. 2 to approximately pH 7. 9 prior to discharge to the CITY distribution system. o pH reduction will be by either carbon dioxide or sulfuric acid. CONSLTANT will perform a planning level alternatives analysis with process flow diagrams, preliminary site layouts, and planning level cost estimates for each (two alternatives total).
o pH increase will be by caustic soda. No alternative chemicals will be evaluated. o CONSULTANT will use the RTW model to evaluate chemical doses required based on expected water quality as provided by the CITY. o The PDR will document design doses, chemical strength, storage volumes, and other chemical system design criteria for selected alternative. o CITY will provide:
Water quality from SSJID to be used for modeling chemical doses required to achieve target pH changes.
Target CITY distribution system pH.
Water quality of the water recovered from the ASR well for modeling chemical doses required to achieve target pH changes.
Distribution system water quality modeling is excluded from this scope of work.
Structural improvements for this project are assumed to be limited to at- grade concrete equipment slabs, a wellhead pedestal, and a conventional single- story cement masonry unit (CMU) building to house the ASR well pedestal and related electrical equipment.
The local storm drainage and/ or sanitary sewer collection systems are sufficiently sized to handle periodic pump- to-waste flows from the ASR well; CITY staff will provide confirmation of available storm and/ or sewer system capacity via hydraulic modeling or other methods.
All deliverables will be provided in electronic format (PDF).
Task 2 Deliverables
Draft and final Geotechnical Update Memorandum
Draft and final Preliminary Design Report
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TASK 3 - DWSAP REPORT AND OUTSIDE AGENCY PERMITTING
The State Water Resources Control Board ( SWRCB) has recently recognized that it is the best interest of the state to develop a comprehensive regulatory approach for ASR projects and has adopted general water discharge requirements for ASR project that inject drinking water into groundwater (Order No. 2012- 0010- DWQ or ASR General Order). The ASR General Order provides a consistent statewide regulatory framework for authorizing both pilot ASR testing and permanent ASR projects. LSCE and CONSULTANT will conduct a pre- application meeting with both the RWQCB and the California Division of Drinking Water ( DDV to review the proposed well site and approach to construct and test Well ASR1. LSCE will evaluate and summarize the DDW permitting requirements for Well ASR1 and prepare the required DDW submittal. The initial DDW submittal document will request siting concurrence for the new well based on compliance with SWRCB setbacks. Concurrence on the well siting is required to proceed with the design and construction of the well. LSCE will also make other DDW submittals for the preliminary and final amended water supply permit. The preliminary water supply permit includes well design information, site plan, and preliminary Drinking Water Source Assessment and Protection ( DWSAP) application. The Final water supply permit submittal will include updates to the information from the preliminary submittal in addition to the Operations Plan, well and chlorination data sheets, an engineering report, and final as- built diagrams.
LSCE will contact all applicable agencies as needed to establish permitting requirements for well drilling and construction, flood plain mitigations, encroachment permits, Waste Discharge Requirements, discharge to sanitary sewer, and electrical service application.
Task 3 Deliverables
Notice of Intent ( NOI) Application Package
Preliminary and final DWSAP Report
Well Completion Report
Task 3 Assumptions
Any and all necessary temporary construction easements, permanent easements, and/ or land acquisition services will be obtained and/ or furnished by the CITY.
TASK 4- DETAILED DESIGN
Two separate design packages are assumed under this task:
Package 1: ASR Well Drilling, Development, and Testing.
Package 2: ASR Well Equipping and Site Improvements.
This scope of work assumes that Package 1 will be completed first and advertised for bid such that the well drilling, development, and testing operations will be completed prior to completion of Package 2 design.
Task 4. 1 Package 1 - Plans, Specifications, and Estimate LSCE will prepare 95% and 100% specifications and bid set submittals that will include detailed construction requirements that must be followed by the well drilling contractor during every phase of the project, including the minimum acceptable methods for drilling fluid control, conditioning of the borehole for casing and gravel envelope installation, well development and pw: l/Carollo_ 200000/ Documents/ CA1Lathrop1200919- 000000101 Project Management101 Pre- ContractlDesign Page 6 of 12 March 2023
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testing, and performance standards. Other site- specific items will include requirements for site security/ access control, sound barriers, containment and disposal of drill cuttings and handling of discharge water during development and test pumping in accordance with applicable local, state, and federal regulations.
LSCE will provide front end specifications to supplement CITY- provided front- end documents, tech specifications, drawings, engineers cost estimate and schedule.
Task 4. 2 Package 2 - 60% Plans, Specifications, and Estimate For Package 2, CONSULTANT will design site civil, mechanical, and electrical improvements for injecting treated surface water into the ASR well and discharging groundwater to the adjacent tank site.
CONSULTANT will develop 60% plans, specifications, and construction cost estimates for the ASR Well Design Project. The project is assumed to consist of the following basic elements:
New ASR well.
Installation of a new motor control center( MCC) and related electrical facilities.
CMU building to house the ASR well, pH adjustment system( s), MCC, and variable frequency drive (if required).
Ancillary site, civil, piping, and mechanical improvements.
Carbon dioxide or sulfuric acid storage and feed system as determined in the PDR alternatives analysis.
Caustic soda storage and feed system.
All cost estimates will be prepared in accordance with AACE International guidelines.
Following CITY review of the 60% design submittal, CONSULTANT will meet with CITY to solicit feedback, review comments, and discuss next steps.
Task 4. 3 Package 2 - 90% Plans, Specifications, and Estimate Following receipt of all CITY comments on the 60% design submittal, CONSULTANT will develop the 90% design submittal. All comments, decisions, and action items will be logged for record. CONSULTANT will provide a comments response log with the 90% design submittal for CITY review. Following CITY review of the 90% design submittal, CONSULTANT will meet with CITY to solicit feedback, review comments, and discuss next steps.
Task 4.4 Package 2 - Bid Documents
Following receipt of all CITY comments on the 90% design submittal, CONSULTANT will develop the Bid Documents submittal. All comments, decisions, and action items will be logged for record. CONSULTANT will provide a comments response log with the Bid Documents submittal for CITY review.
Task 4 Deliverables
60% design submittal ( Package 2)
90% design submittal ( Package 2)
95% design submittal ( Package 1)
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Bid set submittal ( Packages 1 and 2)
Task 4 Assumptions
All deliverables will be provided in electronic format (PDF).
CITY comments will be compiled into a single document for CONSULTANT review.
CITY front-end documents will be provided for CONSULTANT review and use.
Well drilling, development, and testing will be submitted as a separate design package.
Soils are assumed to be adequate for traditionally founded structures; deep foundations will not be required.
The proposed ASR well building will be sized to house the ASR wellhead, immediate downstream mechanical improvements, chemical storage and feed systems, and related electrical facilities ( MCC and variable frequency drives, if required).
ASR well injection and discharge connections will be made to existing on- site yard piping facilities.
ASR well instrumentation will tie into existing on- site facilities. pH adjustment chemical system assumptions:
o Chemical storage and feed will be housed inside the CMU building with the ASR well and electrical equipment. If carbon dioxide is selected, the storage will be in an outdoor tank. Separate rooms will be provided for each chemical.
SCADA programming and integration services are excluded from this scope of work.
Design of the following improvements are excluded from this scope of work:
o Permanent and temporary emergency generators.
o On- site fire protection facilities.
o Off-site pipelines, including water, storm, and sewer facilities. o Natural gas facilities.
o Site security improvements.
o SCADA network upgrades and improvements.
o The site is located on CITY owned property and no further easements or land acquisitions are required for project development.
TASK 5 - PERMITTING ASSISTANCE
This task provides for the following:
Task 5. 1 Permitting Assistance
This task includes supplemental agency coordination and completion of necessary permits not included under Task 3. Coordination with the SWRCB, DDW, and San Joaquin County Environmental Health Department (SJCEHD) related to permitting for drilling, construction, and testing of the new well is anticipated. The contractor selected to drill the production well will be responsible for procurement and administration of the drilling permit. CONSULTANT and LSCE pw:llCarollo_ 200000IDocumentslCA\ Lathrop1200919- 000000101 Project Management101 Pre- ContractlDesign Page 8 of 12 March 2023
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will submit plans and applications and administer other permits as needed. This task assumes the CITY will be responsible for payment of all filing fees.
Task 5 Assumptions
Forty (40) staff hours, including two meetings with agency leads in the Sacramento or Lathrop areas, are assumed for Task 5. 1.
CITY will retain a third- party CEQA consultant for environmental planning and permitting; CEQA, CEQA-Plus, and NEPA permitting efforts are excluded from CONSULTANT' s scope of services.
CONSULTANT will furnish technical data to the CEQA consultant under Task 5. 1.
TASK 6 — BIDDING ASSISTANCE
This task provides bidding assistance for two separate bid packages ( Package 1 and Package 2) as described under Task 4. This task provides for the following:
Task 6. 1 Attend Pre-Bid Conference
CONSULTANT' s Project Manager or Project Engineer will attend the pre- bid conference for Package 2 as scheduled by the CITY and note any questions for later response by addendum.
Task 6. 2 Prepare Addenda
CONSULTANT and/ or LSCE will prepare addenda in response to questions received by the CITY in writing. CONSULTANT and/ or LSCE will submit the addenda to the CITY directly for distribution to prospective bidders.
Task 6. 3 Bid Tab Analysis
LSCE ( Package 1) and CONSULTANT ( Package 2) will review the submitted contractor bids and prepare a bid tab evaluation for the CITY.
Task 6 Assumptions
CITY will administer the bid process, including posting bid advertisements, receiving questions from prospective bidders, issuing responses to questions ( responses provided by CONSULTANT and/ or LSCE), scheduling pre- bid conferences, receiving bids, publicly opening bids, and posting bid results.
Up to two addenda for each bid package are assumed under this task.
CITY will receive written questions from prospective bidders and provide to CONSULTANT and/ or LSCE for response.
CITY will distribute addenda to prospective bidders.
TASK 7 — PACKAGE 1 ENGINEERING SERVICES DURING CONSTRUCTION Task 7. 1 Pre-Construction Conference
LSCE will attend a pre- construction conference with the contractor to answer technical or logistical questions concerning project approach and completion.
Task 7. 2 ASR Well Construction Oversight
LSCE will provide the following services during construction of Package 1:
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Verify ASR well location.
Witness conductor/ surface casing installation.
Monitor drilling operations and borehole construction.
Inspect and verify casing and screen materials.
Witness borehole conditioning and casing assembly installation.
Inspect gravel pack and seal placement and estimate final quantities for installation.
TASK 8 — PACKAGE 2 ENGINEERING SERVICES DURING CONSTRUCTION Task 8. 1 Pre- Construction Conference
CONSULTANT` s Project Manager and Project Engineer will attend a pre- construction conference with the contractor to answer technical or logistical questions concerning project approach and completion.
Task 8. 2 Engineer Site Visits and Progress Meetings
CONSULTANT` s Project Manager or Project Engineer will attend regular progress meetings for the duration of construction. This task assumes attendance at up to 24 meetings over a 12- month construction duration.
Task 8. 3 Respond to RFIs
CONSULTANT will respond to requests for information ( RFIs) submitted by the contractor to the CITY or Construction Manager. Responses will be submitted in writing and delivered to the CITY or third- party construction manager via email. Review of up to 15 RFIs is assumed under this task.
Task 8. 4 Shop Drawing Submittal Review
CONSULTANT will review shop drawing submittals for compliance with project plans and specifications. Review of 40 submittals and resubmittals is assumed under this task.
Task 8. 5 Change Order Review
CONSULTANT will review proposed change orders and assist the City and Construction Manager with response preparation. If required, supplemental drawings and specifications will be prepared for the change order response. Up to four change orders are assumed under this task.
Task 8. 6 Final Acceptance Walk
CONSULTANT' s Project Manager or Project Engineer will attend a final acceptance job walk as scheduled by the City and Construction Manager and note any final items required for project completion.
Task 8. 7 Record Drawings
CONSULTANT will prepare record drawings based on as- built markups provided by the contractor or CITY' s third- party construction manager.
Task 8 Assumptions
The total duration of construction will not exceed 12 months with active, on- site construction ( excluding material procurement periods) requiring approximately 6 months.
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information; the anticipated construction schedule will be updated as design progresses and submitted to the CITY with each design deliverable ( see Task 4).
Attendance at up to 24 on- site construction progress meetings is assumed.
Responses to up to 70 RFIs and 100 shop drawing submittals are assumed.
Responses to up to four design clarifications or change orders are assumed.
Materials testing during construction will be the responsibility of the CITY or CITY' s designated third- party construction manager.
TASK 9 — ASR WELL COMMISSIONING
This task provides for ASR well " cycle one" commissioning support, including interim recharge, to evaluate the operation of the ASR well and adjust controls to optimize long- term operation.
ASRS will prepare an O& M manual; conduct operator training; provide a first- year cycle- testing plan to guide ASR operations; monitor data from well operations during the first year after completion of wellhead facilities; and recommend any needed adjustments. The cycle one commissioning support is anticipated to occur over a duration of 12 months.
OPTIONAL TASK 10 — ADDITIONAL MONITORING WELL DEPTH AND CORING This optional task provides for modifications to the monitoring well construction described under Task 2. 4. This option will not be initiated until approved by the CITY in writing.
Optional Task 10. 1 Additional Monitoring Well Depth
The optional task provides for drilling the monitoring well deeper than the depth stated under Task 2. 4. The cost associated with this task includes drilling to a maximum depth of 1, 500 ft BGS. If an intermediate depth ( less than 1, 500 ft BGS) is desired by the CITY, a modified drilling cost can be provided.
Optional Task 10. 2 Wireline Coring of Monitoring Well
This optional task provides for wireline coring of monitoring well (described under Task 2. 4 and Optional Task 10. 1) to better evaluate geophysical conditions and potential geochemical reactions to ASR operations in the target aquifer. The cost associated with this task includes wireline coring within the monitoring well to a maximum depth of 1, 500 ft BGS. If an intermediate depth ( less than 1, 500 ft BGS) is desired by the CITY, a modified coring cost can be provided.
OPTIONAL TASK 11 — GRANT ADMINISTRATION SUPPORT
CONSULTANT will assist CITY staff with administrative tasks required to comply with grant funding requirements. Anticipated tasks include preparation of quarterly progress reports, project completion reports, and post- construction reports. The final level of effort will depend on the grant awarded and CITY staffing needs. This task assumes up to 80 CONSULTANT staff hours, including one meeting with CITY staff.
TIME OF PERFORMANCE
CONSULTANT will perform the scope of services for Task 1 through Task 6 over an assumed 12- month duration. The durations for Tasks 7 and 8 ( Engineering Services During Construction) will be established following completion of Task 2 ( Data Collection and Preliminary Design) but pw:UCarollo_ 200000/ DocumentslCA\ Lathrop1200919- 000000\ 01 Project Management\ 01 Pre- ContractlDesign Page 11 of 12 March 2023
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currently assume a duration of 12 months. The duration of Task 9 ( ASR Commissioning Support) assumes a duration of 12 months.
PAYMENT
Payment to the CONSULTANT for services performed under this Agreement shall be based on the attached fee proposal (Attachment 2) on a time and materials basis. The not-to-exceed cost limit to the CONSULTANT' s services, excluding optional tasks, shall be $ 2, 280, 423.
Including optional tasks, the not- to- exceed limit to the CONSULTANT' s services shall be 3, 061, 822.
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CITY OF LATHROP
AQUIFER STORAGE AND RECOVERY WELL DESIGN PROJECT
FEE PROPOSAL Engineers... workirrg worrders wm water
MARCH 2O23
s+rofeat
YOtal
1 Project Coord. and Admin. 114 - - - 114 $ 30, 518 $ 2, 136 $ 32, 654 $ - S - $ - $ 13, 653 $ 85, 395 $ 131, 702 2 ata Collection and PDR 346 - - 4 350 $ 82, 306 $ 5, 100 $ 87, 406 $ 9, 240 $ 3, 520 $ 8, 800 $ 387, 860 $ 41, 250 $ 538, 076 3 DWSAP Report 44 - - - 44 $ 10, 788 $ 916 $ 11, 704 $ - $ - $ - $ 27, 500 $ 8, 131 $ 47, 335 4 DetailedDesign 1, 332 284 260 120 1, 996 $ 455, 068 $ 27, 944 $ 483, 012 $ - $ 51, 480 $ - $ 12, 75fi $ 236640 $ 783, 887 5 Permitting Assistance 40 - - - 40 $ 10, 788 $ 560 $ 11, 348 $ - $ - $ - $ - $ - $ 71, 348 6 BiddingAssislance 44 B - - 52 $ 12, 652 $ 728 $ 13, 380 $ - $ 770 $ - $ 2,624 $ 18, 119 $ 34, 893 Phase 1( Design) Su6total 1, 920 292 260 124 2, 596 S 602. 120 S 37, 384 $ 639, 504 E 9, 240 S 55, 770 E 8, 800 E 444, 392 E 389, 535 S 1, 547, 242 7 Package 1 ESDC i2 - - - 12 $ 3, 348 $ 168 $ 3, 516 $ - $ - $ - $ 96, 096 $ - $ 99, 612 8 Package 2 ESDC 1, 434 32 120 - 1, 586 $ 412, 066 $ 24, 204 $ 436, 270 $ - $ 10, 230 $ - $ - $ 141, 900 $ 588, 400 9 Commissioning 72 - - - 72 $ 18, 008 $ 7, 768 $ 79, 176 $ - $ - $ - $ - $ 25, 993 $ 45, 169 Phase 2( ESDC) Subtotal 1, 518 32 120 - 7, 670 S 433, 422 S 25, 540 S 458, 962 S - S 10, 230 S - S 96, 096 S 167, 893 S 33, 181 project7otal xcWdesOptional) : 7, 438 334 380 .. 7Y4 4, Z8G AA35,Sd2 S 82,824 ; 1., 4B8, 4b8 E 8, 2A0 86, Op0 - S . 0 3 540, 488 i 5$ 7, 4R8 S 2, 80,428 Ootional Tasks
10 Additional MW Depth and Conng 2 - - - 20 $ 5, 580 $ 280 $ 5, 860 $ - $ - $ - $ 731, 379 $ 22, 000 $ 759, 239 11 GrantAdministretionSupport SO - - - SO $ 21, 040 $ 1, 120 $ 22, 160 $ - $ - $ - $ - $ - $ 22, 160 ProJeatTataljincludes. Op8ana1) 9,938 324 3$ 0 ; 9Y4 d:364 5 t, Ofi2, 1? i B i,324 S 1 126,{ 96 , i.: 8.2A4 ; 66.fi0 1 .: 3 8,b90 :; 1, 27A, E67 S S79, dR6 i 3, 061; 8Y2.
Notes:
1) Rates are based on Carollo Engineers, Inc., Fee Schedule as of Jan 1, 2023 for Califamia. 2) Other direct costs( ODC) include mileage traveling to/ fmm meefings at IRS Federal Rate, trevel at cost and Project Equipment and Communication Expense( PECE) at$ 14 per direct labor hour. 3) Includes Subconsultant markup of 10%.
pw:\\ IO- PW- INT. carollo. local: Carollo 3/ 28/ 2023
719
CAROLLO ENGINEERS, INC.
FEE SCHEDULE
As of January 1, 2023
California
Hourly Rate
Engineers/ Scientists
Assistant Professional 214. 00
Professional 263. 00
Project Professional 311. 00
Lead Project Professional 330. 00
Senior Professional 349. 00
Technicians
Technicians 161. 00
Senior Technicians 224. 00
Support Staff
Document Processing / Clerical 143. 00
Project Equipment Communication Expense 14. 00
PECE) Per DL Hour
Other Direct Expenses
Travel and Subsistence at cost
Mileage at IRS Reimbursement Rate 655 per mile
Effective January 1, 2023
Subconsultant cost + 10%
Other Direct Cost cost + 10%
Expert Witness Rate x 2. 0
This fee schedule is subject to annual revisions due to labor adjustments. 720
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