Fairfield City Council
June 16, 2026

CITY OF FAIRFIELD
RESOLUTION NO. 2024-293

AUTHORIZING THE CITY MANAGER TO EXECUTE A PROFESSIONAL SERVICES AGREEMENT

WITH WEST YOST ASSOCIATES FOR THE PROVISION OF PROFESSIONAL SERVICES FOR THE NORTH BAY REGIONAL WATER TREATMENT PLANT EXPANSION PROGRAM, UPDATING THE 5-

YEAR CAPITAL IM PROVEM ENT PLAN TO INCLUDE THE NORTH BAY REGIONAL WATER

TREATMENT PLANT EXPANSION PROJECT, AND AUTHORIZING AN UPDATE TO THE FISCAL YEAR 2024-2025 BUDGET
WHEREAS, the North Bay Regional Water Treatment Plant (NBRWTP) is jointly owned by the Cities of Vacaville and Fairfield, but is operated by City of Fairfield staff; and WHEREAS, governance, ownership and operation of NBRWTP is outlined in a joint powers agreement (JPA), which was executed in 1987; and
WHEREAS, governance, ownership and oversight powers defined with the JPA are carried out through a Joint Powers Policy Committee (JPPC); and
WHEREAS, over 20 years ago, long range planning for the cities of Vacaville and Fairfield projected that the NBRWTP would require an expansion; and WHEREAS, both cities are experiencing growth in accordance with their adopted general plans and, accordingly, need to consider planning for the future treatment plant expansion that was originally contemplated in the JPA; and
WHEREAS, both Cities have either completed or substantially completed their respective water system master plans and, correspondingly, each have independently identified and concluded that it is time to consider planning for the facility expansion originally envisioned in the JPA; and WHEREAS, in order to begin design and construction of the NBRWTP expansion project, the JPPC needs to formally reconvene to evaluate future treatment capacity strategies, identify funding arrangements and determine project delivery; and
WHEREAS, the JPPC has determined that due to the nature and technical complexity of the NBRWTP expansion, West Vost Associates has the knowledge, experience and number of staff capable of providing the best value for both Cities; and WHEREAS, pursuant to the JPA, the Cities of Vacaville and Fairfield have been depositing funds into a reserve fund that is intended to be used for pre-design efforts; and

RES. NO. 2024-293

WHEREAS, the JPA stipulates that all direct and indirect costs incurred by the administering party shall be reimbursed out of the JPA fund; and
WHEREAS, funding was not allocated for this project in the City's approved fiscal year (FY) 2024- 2025 Budget, thus requiring a budget adjustment of $1,993,100 to North Bay Regional Fund (Fund 465) for the North Bay Regional Water Treatment Plant Expansion Project; and WHEREAS, the revised appropriation constitutes an update to the FY 2024-2025 Budget approved pursuant to Resolution No. 2023-149.

NOW, THEREFORE, THE COUNCIL OF THE CITY OF FAIRFIELD HEREBY RESOLVES:

Section 1. The city manager is hereby authorized to execute a professional services agreement with West Yost Associates for the provision of professional engineering and management services for the NBRWTP Expansion Program for an amount not to exceed $1,993,100.

Section 2. The council authorizes the city manager to take all steps necessary to implement this resolution.

Section 3. The council hereby approves a budget amendment of $1,993,100 to increase appropriations to the NBR Fund (Fund 465) for the North Bay Regional Water Treatment Plant Expansion Project.

RES. NO. 2024-293

PASSED AND ADOPTED this 17th day of December 2024, by the following vote:

AYES: MEMBERS: MOY [B ERTAN l[CARR[ PAN DURO[SANDH U[TON N ESEN[WILLIAMS NOES: MEMBERS: ~ C-AJLJ
ABSENT: MEMBERS: N O V\JLI
ABSTAIN: MEMBERS: ~ Ov\Q...,
MAYOR
ATTEST:
~ t.tf:u+- CITY CLERK

Agenda Item No: U.12

AGENDA REPORT
DATE: December 17, 2024
TO: Mayor and Council
FROM: David Gassaway, City Manager
SUBJECT: Resolution 2024-XX 293
Authorizing the City Manager to Execute a Professional Services Agreement with West Yost Associates for the Provision of Professional Services for the North Bay Regional Water Treatment Plant Expansion Program, Updating the 5-Year Capital Improvement Plan to Include the North Bay Regional Water Treatment Plant Expansion Project, and Authorizing an Update to the Fiscal Year 2024-2025 Budget
Funding Source: $1,993,100; North Bay Regional Fund
Contact: Michael J. Hether, (707) 428-7493

RECOMMENDED ACTION
Adopt resolution.

STATEMENT OF ISSUE
City Council approval would authorize the city manager to execute an agreement with West Yost Associates (WYA) to provide professional engineering and management services for program development of the North Bay Regional Water Treatment Plant (NBRWTP) expansion. NBRWTP is jointly owned by the Cities of Vacaville and Fairfield but is operated by City of Fairfield staff.

Governance, ownership and operation of NBRWTP is outlined in a joint powers agreement (JPA), which was executed in 1987. Both cities are experiencing growth in accordance with their adopted general plans and, accordingly, need to consider planning for a future treatment plant expansion that was originally contemplated in the JPA.

DISCUSSION
Fairfield Municipal Utilities (FMU) provides water to the cities of Fairfield and Vacaville on a continuous basis and employs staff who are responsible for the operation of Fairfield's water system, a portion of which includes the NBRWTP. NBRWTP was conceived and constructed out of a need to realize access to the North Bay Aqueduct (NBA), both of which were completed in 1988. Back then, both cities needed a new treatment plant capable of accessing and treating the

new delta water supply that the NBA would bring to Solano and Napa counties. While NBRWTP was jointly constructed by the Cities of Vacaville and Fairfield, the plant facilities are operated by City of Fairfield staff through a JPA.

The JPA explicitly defines governance, ownership, and oversight powers, which are carried out through a Joint Powers Policy Committee (JPPC). The JPPC provides broad policy oversight to execute the duties and responsibilities defined by the JPA. While the JPPC consists of city staff from both Cities (Vacaville Utilities Director and Fairfield Assistant Public Works Director), the City of Fairfield is designated as the administering party on behalf of both cities. The JPPC used to meet regularly but has reverted to an as-needed basis over time. At a minimum, the JPPC formally convenes on an annual basis to adopt the JPA budget.

The JPA stipulates that all direct and indirect costs incurred by the administering party shall be reimbursed out of the JPA fund. Conversely, the JPA requires each City to make annual contributions to a reserve fund whose sole purpose is to provide a secure source of funding for emergencies, major equipment rehabilitation, replacement, or future expansions. Over 20 years ago, long-range planning for the cities of Vacaville and Fairfield projected that the NBRWTP would require an expansion, but there have been no efforts taken to implement a facility expansion to date. Both Cities have either completed or substantially completed their respective water system master plans, and correspondingly, each has independently identified and concluded that it is time to consider planning for the facility expansion originally envisioned in the JPA.

Master plans are guidance documents used as planning tools to ensure that systems can meet future needs. Generally, master plans are a best management practice used to identify systemw ide improvements, which can span decades. Well-writt en master plan documents contain in-depth analysis of the physical condition, operating capabilities, and criticality, which are then used to info rm decision-making. Finally, while master plans include a comprehensive list of projects across the document's planning horizon, they do not include design details or facility expansion plans.

In order to begin the design and construction of the NBRWTP expansion project, there are a series of legal, technical, and financial determinations that both Cities must consider. Befo re any engineering efforts can begin, the Cities must engage to discuss changes to the existing JPA, evaluate future treatment capacity strategies, identify funding arrangements, and determine project delivery, all of which must be summarized into a business case. The means to engage and achieve these efforts will be through a formal reconvening of the JPPC. This specific scope of work will result in laying the foundation to begin design efforts, which are expected to take place over the next two years.

Over the next couple of years, both Cities will have updated their general plans, which will allow the JPPC to lay the foundation to begin the next steps for the NBRWTP expansion. Updates to general plans always include an assessment of an existing or compilation of a water utility master plan to support buildout. As it pertains to water utility master plans, the City of Vacaville has completed its water master plan, and the City of Fairfield is near completion of its water master

plan. Due to the technical complexity of developing a water master plan, both Cities had solicited qualified consultants who specialize in water utility systems, and WYA was selected in both cases because WYA staff have current and historical knowledge of both Cities' water utility systems.

The JPPC requested a statement of qualifications from WYA to facilitate the review and evaluation of their experience. WYA has performed similar program development and pre-design efforts on regional facilities owned by multiple agencies. The JPPC has determined that due to the nature and technical complexity of the NBRWTP expansion, WYA has the knowledge, experience and number of staff capable of providing the best value for both Cities.

FINANCIAL IM PACT
The total cost to complete the NBRWTP plant expansion program is an amount not to exceed $1,993,100. Pursuant to the JPA, both Cities have been depositing funds into a reserve fund that is intended for this purpose.

The JPA also specifies that the administering party shall reimburse all direct and indirect costs incurred out of the JPA fund. Both parties wish to pursue the NBRWTP expansion and, consequently, intend to split all costs to complete this work, excluding the evaluation of Vacaville's capacity strategy ($103,000).

The NBRWTP Plant Expansion Project was not included in the fiscal year (FY) 2024-2025 Capital Budget. Therefore, a budget amendment is required to authorize an increase in appropriations of $1,993,100 to the NBR Fund (Fund 465).

The NBR Fund (Fund 465) will utilize previously collected reserves. The estimated timing and split of the reserves are as follows:

City of Fairfield (FY 2025):

City of Vacaville (FY 2025):

City of Fairfield (FY 2026):

City of Vacaville (FY 2026):
$334,550
$430,850
$610,500
$617,200
Total Fairfield contribution: $945,050
Total Vacaville contribution: $1,048,050

PUBLIC CONTACT/ ADVISORY BODY RECOM M ENDATION
N/A

ALTERNATIVE ACTION
The council may choose not to authorize the city manager to execute the agreement. However, this would be inconsistent with the authority vested in the JPPC through the JPA.

COORDINATED WITH
City Attorney's Office

STAFF CONTACT
Michael J. Hether, Assistant Director Public Works/ Utilities (707) 428-7493
rn [email protected] .gov

ATTACHMENTS
Attachment 2: Proposed Resolution
Attachment 3: Proposed Agreement - West Yost
Attachment 4: Statement of Qualifications - West Yost
Attachment 5: NBRWTP Joint Powers Agreement

PROFESSIONAL SERVICES AGREEMENT
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Close Date: 01,o (~o/ Z.,o z ~
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Destruction Date: O!,,/~o/ ,Z,.• 3,
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THIS AGREEMENT is made at Fairfield, California, as of Dec.e,yv,Jxr l9. 20.M , by and between the City of Fairfield, a municipal corporation (the "CITY") and West Yost ("CONSULTANT"), who agree as follows:
1) SERVICES. Subject to the terms and conditions set forth in this Agreement, CONSULTANT shall provide to the CITY the services described in Exhibit "A," which consists of the proposal submitted by CONSULTANT. CONSULTANT shall provide said services at the time, place, and in the manner specified in Exhibit "A."
2) PAYMENT. CITY shall pay CONSULTANT for services rendered pursuant to this Agreement at the times and in the manner set forth in Exhibit "B." The payments specified in Exhibit "B" shall be the only payments to be made to CONSULTANT for services rendered pursuant to this Agreement.

CONSULTANT shall submit all billings for said services to the CITY in the manner specified in Exhibit "B." 3) FACILITIES AND EQUIPMENT. CONSULTANT shall, at its sole cost and expense, furnish all facilities and equipment which may be required for furnishing services pursuant to this Agreement. 4) GENERAL PROVISIONS. The general provisions set forth in Exhibit "C" are part of this Agreement. In the event of any inconsistency between said general provisions and any other terms or conditions of this Agreement, the provisions set forth in Exhibit "C" shall control. 5) INSURANCE REQUIREMENTS. The insurance requirements set forth in Exhibit "D" are part of this Agreement. In the event of any inconsistency between said general provisions and any other terms or conditions of this Agreement, the requirements set forth in Exhibit "D" shall control. 6) BUSINESS LICENSE. The CONSULTANT shall obtain and keep current a business license for work within the City of Fairfield pursuant to Chapter 10B of the Fairfield City Code, with respect to the gross receipts received pursuant to this Agreement. No payments shall be made to any SERVICE PROVIDER until such business license has been obtained, and all fees paid therefore, by the CONSULTANT. Business license applications and information may be obtained from the Community Development Department, Fairfield City Hall, 1000 Webster Street, Fairfield, CA 94533-4883, {707-428- 7509) and online at www.fairfield.ca.gov/biz.
7) EXHIBITS. All exhibits referred to herein are attached hereto and are by this reference incorporated herein.
8) TERM. This agreement shall be in effect through June 30, 20260 9) GOVERNING LAW AND VENUE. Should either Party to this Agreement bring legal action against the other, the validity, interpretation, and performance of this Contract shall be controlled by and construed under the laws of California, excluding California's choice of law rules. Venue for any such action relating to this Agreement shall be in the Solano County Superior Court. 10) Where applicable, vehicles with a GVWR greater than 8,500 lbs. and light-duty package delivery vehicles operated in California may be subject to the California Air Resources Board Advanced Clean Fleets regulations. Such vehicles may therefore be subject to requirements to reduce emissions of Revised 6/28/2024

air pollutants. For more information, please visit the CARS Advanced Clean Fleets webpage at https:// wwl.arb.ca.qov/our-work/proqrams/advanced-clean-fleets 11) ENTIRE AGREEMENT. This Agreement, including any other documents incorporated herein by specific reference, represents the entire and integrated agreement between CITY and CONSULTANT.

This Agreement supersedes all prior oral or written negotiations, representations or agreements. This Agreement may not be modified or amended, nor any provision or breach waived, except in a writing signed by both parties which expressly refers to this Agreement. 12) COUNTERPARTS. This Agreement may be executed in counterpart originals, duplicate originals, or both, each of which is deemed to be an original for all purposes. 13) NOTICES. This Agreement is managed and administered on the CITY's behalf by the individual named below. All invoices must be submitted and approved by this individual and all notices shall be given to the CITY using the following contact information:

CITY Contact: Bryan Heinzelman, P.E.

E-mail: [email protected]
Address: 1000 Webster Street, Third Floor, Fairfield, CA 94533 Telephone: (707) 428-7034
Notices must be given to CONSULTANT at the following:

CONSULTANT Contact: Jeffrey D. Pelz, P.E.

E-mail: [email protected]
Address: 200 Research Park Drive, Suite 100, Davis, CA 95618 Telephone: (530) 792-3259
EXECUTED as of.the day first above-stated.

CONSULTANT
Jeffrey D. Pelz, Vice President
Revised 6/28/2024

Initial Scope of Services (FY 24/25 and FY 25/ 26)
NBRWTP Expansion Program Management
Task 3.4. Additional Studies
Beyond the sampling and data collection needs identified under Tasks 3.2 and 3.3, additional, targeted studies are needed to address concerns related to power availability, pretreatment (flocculation/ sedimentation) facilities, and filtration facilities. Accordingly, the following special studies are included in this scope:
• Distributed Energy Resources (DER) Evaluation
• Pretreatment Challenge Testing
• Filter Challenge Testing
The DER Evaluation involves assessing the potential for Fairfield to make use of its existing photovoltaic array in conjunction with a battery power storage system to allow for more flexible NBRWTP operations during peak demand periods and potentially provide seamless transition from and to the electric utility.

The Pretreatment Challenge Testing involves stress testing each of the three NBRWTP flocculation/ sedimentation units to determine the actual capacity of each unit in comparison to the rated capacity of each. As part of this effort, West Yost will assist with the development of a draft test protocol. Testing would be performed by Fairfield staff with assistance from West Yost.

The Filter Challenge Testing involves analyzing the performance of the existing filters over the full range of historical loading rates, evaluating the impact of the effective size of the granulated activated carbon and sand media layers on filter headloss and run times, and analyzing the relationship between clarified washwater parameters and filter runtimes under a variety of operational scenarios. Based upon the results of this analysis, a protocol will be developed and implemented to test the existing filters at a range of loading rates to better understand their ability to meet performance goals. Testing would be performed by Fairfield staff with assistance from West Yost.

It is expected that NBRWTP staff will conduct the challenge tests, however, 20 hours has been included to provide as needed on-site assistance. A subconsultant will be retained by West Yost to collect media core samples.

For each of these additional studies, draft and final TMs will be produced to document the findings.

Task 3 Assumptions
• Two workshops with NBRWTP staff; one ahead of testing protocol development and one to review the results of the data analysis and challenge tests.
• One meeting each (three total) with NBRWTP staff to discuss implementation of the three additional studies
• One meeting with DDW to discuss pretreatment testing protocol • City staff will extract data and collect and analyze samples with limited assistance from West Yost commensurate with an agreed budget allocation
• The budget includes an allowance for subconsultant services that will be adjusted when the media sam ling sco e is determined
W EST YOST 4 City of Fairfield
City of Vacaville

Initial Scope of Services (FY 24/ 25 and FY 25/ 26)
NBRWT P Expansion Program Management
Task 3 Deliverables
• Workshop/meeting agendas and summary notes
• Draft and final sampling and data collection plan (Task 3.2) • Draft and final TM of findings (Task 3.3)
• Draft and final pretreatment testing protocol (Task 3.4) • Draft and final filter testing protocol (Task 3.4)
• Draft and final DER evaluation TM (Task 3.4)
• Draft and final pretreatment testing results TM(Task 3.4) • Draft and final filtration testing results TM Task 3.4) TASK 4. VACAVILLE CAPACITY PLANNING
Vacaville is faced with important decisions regarding the buildout of its water supply portfolio and needs to more clearly define its future surface water and groundwater supply mix. Of particular importance, the continued use of existing facilities needs to be defined, including its Diatomaceous Earth Water Treatment Plant (DEWTP) and several of its existing water supply wells, which are aging and experiencing water quality issues due to contaminants of concern (i.e., Cr6+). These issues are relevant to the expansion of the NBRWTP as assumptions made for other City facilities directly impact the allocation of treatment capacity needed for Vacaville and cost allocations between the two Cities. Accordingly, Vacaville needs to finalize its plan for using NBRWTP capacity, in both the near/medium-term and the long-term. Key subtasks to be performed under Task 4 include:
• Task 4.1. Refinement of Demand Projections
• Task 4.2. Evaluation of Surface Water and Groundwater Supply Options • Task 4.3. Vacaville Capacity Strategy TM
Each of these tasks are described further in the following sections.

Task 4.1. Refinement of Demand Projections
The City of Vacaville completed a Water Master Plan Update (Vacaville WMPU) in February 2023 that examined different water supply alternatives in light of growing water demands and emerging water quality concerns. The demand projections developed as part of the Vacaville WMP are based on a series of conservative assumptions and development information available at the time of preparation of the Vacaville WMPU. In this task, demand projections will be reviewed to better define Vacaville's surface water needs in both the near/medium-term and the long-term. This includes reviewing updated production information and determining if demand trends are growing at a rate similar to or less than what was defined in the Vacaville WMPU.

Task 4.2. Evaluation of Surface Water and Groundwater Supply Options The Vacaville WMPU considered two different surface water treatment options: (1) construction of a new WTP facility, (2) expansion of its share of the NBRWTP coupled with a rebuilding of the DEWTP. The WMPU did not, however, consider consolidating all surface water treatment at the NBRWTP. In addition, as mentioned above, the City's existing groundwater well facilities have been impacted by CR6+. Recently issued regulations for Cr6+ have impacted Wells 3, 9, 14, 15, and 16, which all have concentrations of Cr6+ that exceed the MCL of 10 micrograms per liter. As a result, future surface water supply planning should factor in the need for blending and/or planned wellhead treatment options as well as considering W EST YOST 5 City of Fairfield
City of Vacaville

Initial Scope of Services (FY 24/25 and FY 25/ 26)
NBRWTP Expansion Program Management
increased surface water supplies. Under near-term conditions the City will likely need to rely on additional surface water deliveries in the interim while it concurrently works on addressing wells with Cr6+.

Using the updated demand projections developed under Task 4.1, the evaluation of additional supply alternatives will be accomplished as follows:

1. Conduct a Supply Strategy Alternatives Workshop to identify which new long-term and interim supply alternatives will be modeled to determine treatment and conveyance capacity needs under both near-term and long-term demand scenarios. During the workshop West Yost and City staff will agree on up to four scenarios to be evaluated using the City's hydraulic model to identify infrastructure and associated sizing. The following parameters will be agreed upon for each scenario to be evaluated:
a. Demand Scenario: Buildout, Long-term (Pre-Buildout), or Interim (near term/ mid term). b. Status of DE Plant: Converted to Storage/Blending facility, or Fully Abandoned. c. Treatment Location: NBR Capacity plus (if any) Capacity within Vacaville d. Groundwater Wells: Producing at Sustainable Yield, or Producing at Less Than Sustainable Yield due to loss of capacity for Cr6+ mitigation.

Based on conversations with City staff and internally, the following alternatives are likely examples of the four scenarios that will be refined and adopted at the workshop for subsequent modeling:

Option A: Buildout Scenario
• Demands: Buildout per the WMPU or refined based on Task 4.1 • Wells producing at the sustainable yield
• DE plant site used only for blending of water from selected wells • NBR producing the balance of supply needed to meet demands Option B: Highest Potential Need from NBR
• Same as Option A, except reduced well production
• Possible Variation: Use long-term (pre-buildout) demands Option C: Interim Conditions (tests near-term adequacy of existing conveyance) • Demands projected for near- to mid-term
• All wells impacted by Cr6+ assumed to be offline
• DE plant not operational
• NBR producing the balance of supply needed to meet demands Option D: Interim Condition with Full Groundwater
• Same as Option C, except wells producing at the sustainable yield • DE plant site used only for blending of water from selected wells

2. Perform a hydraulic evaluation of the identified alternatives to assess the improvements necessary to meet demands. The evaluation will include preparing planning-level estimates of capital costs for each evaluated scenario.

W EST YOST 6 City of Fairfield
City of Vacaville

Initial Scope of Services (FY 24/ 25 and FY 25/ 26)
NBRWTP Expansion Program Management

3. Meet with City staff to review the results and select project criteria for the NBRWTP Expansion Program. Specifically, what near-term and long-term capacity is needed at the NBRWTP for Vacaville, and what near-term and long-term offsite improvements are needed to accommodate the NBRWTP supply.

Task 4.3. Vacaville Capacity Strategy TM
Upon completion of the investigations performed under Tasks 4.1 and 4.2, a TM of findings will be produced that will document decisions about Vacaville's capacity needs from the NBRWTP, including conceptual offsite transmission facilities. A draft TM will be produced for Vacaville staff review and will be finalized based on comments and input received. Fairfield's NBRWTP capacity needs will be summarized under Task 5.

Task 4 Assumptions
• One workshop with Vacaville staff to discuss the parameters of the modeling to be performed under Tasks 4.2.
• Hydraulics will be evaluated for up to four scenarios • One meeting with Vacaville staff to discuss and agree on a basis for Vacaville's NBR capacity needs and offsite infrastructure.

Task 4 Deliverables
• Agenda and summary notes for the workshop and meeting with Vacaville staff • Draft and final NBRWTP Car1acit Strategy,__T_M ~
TASK 5. FACILITIES PLANNING
Under this task, facilities planning will be performed that results in a Benchmark Project that will provide the basis for the detailed design of NBRWTP improvements by a suitable design team to be selected at a later time. The facilities planning will define and evaluate a potential capacity phasing for meeting near­ and long-term capacity needs and will include a planning level cost estimate. The Facilities Plan will be based on the findings and conclusions of the May 24, 2024 technical memorandum (TM) titled "NBRWTP Condition Assessment, Performance Evaluation, and Expansion Analysis" (May 2024 NBRWTP TM), supplemented as described below. The key subtasks to be performed under Task 5 include:
• Task 5.1. Raw and Treated Water Quality Characterization • Task 5.2. Existing Facilities Description
• Task 5.3. Need for Project
• Task 5.4. Treatment Performance and Technology Goals
• Task 5.5. Benchmark Project Development
• Task 5.6. Project Implementation and Schedule
• Task 5.7. Cost Estimates
• Task 5.8. Benchmark Design Report
WEST YOST 7 City of Fairfield
City of Vacaville

Initial Scope of Services (FY 24/25 and FY 25/ 26)
NBRWTP Expansion Program Management
Task 5.1. Raw and Treated Water Quality Characterization West Yost will update historical raw and treated water quality characterizations prepared as part of Fairfield's recent Public Utilities Master Plan (PUMP), which included available data from 2018 to 2022.

More recent data from 2022 through 2024, including parameters recorded as a result of data collection activities under Task 3, will be incorporated into the PUMP datasets and analyses. The intent of this task is to prepare a comprehensive set of relevant source water quality and plant performance data for use by a plant expansion design team.

Task 5.2. Existing Facilities Description
Descriptions of existing NBRWTP facilities from Fairfield's recent PUMP will be updated and expanded, as appropriate, to provide additional background on the NBRWTP and its relationship with major treated drinking water infrastructure in Fairfield and Vacaville.

Task 5.3. Need for Project
West Yost will prepare a summary of the need for the proposed NBRWTP improvements, incorporating results from the PUMP (including condition-, capacity-, and performance-based drivers), as well as Tasks 3 and 4 from this scope of work. The principal changes to information previously developed as part of Fairfield's PUMP will be an updated presentation of capacity-based improvement needs to reflect Vacaville's capacity requirements, and to update discussion of performance-based improvements reflecting results from Tasks 3.3 and 3.4.

Task 5.4. Treatment Performance and Technology Goals
This task will focus on identifying and defining the Cities' preferences and expectations for the characteristics and performance of an expanded and modified NBRWTP, including definition of acceptable treatment technologies and equipment. West Yost will lead a workshop with representatives from both cities to identify and assess a range of technically feasible approaches to modifying and expanding the NBRWTP. A framework will be developed for screening options. Screening criteria may include (but are not limited to) constructability, capital and operating costs, treated water quality, operational flexibility, and ability to meet anticipated and/or potential changes to treated water quality regulations. A TM summarizing and documenting the Cities' preferences and expectations will be prepared; the TM will serve as the basis for establishing relevant constraints and/ or prescriptive requirements for incorporation into future project procurement documents. The purpose of this task is not to confine the future design to specific technologies, but rather to identify any constraints that the Cities desire to imposed on the future design.

Task S.S. Benchmark Project Development
The purpose of the Benchmark Project will be to identify and define one approach to satisfying the Cities' needs for improvements to the NBRWTP and related offsite infrastructure that would be included in a combined project. The Benchmark Project will establish the type, size, configuration, and performance of key project elements that the Cities' believe would achieve the project's capacity and performance requirements, and will serve as the basis for estimated capital and operating costs for the improved facilities. Where appropriate, the Benchmark Project is anticipated to include a degree of conservatism in terms of design criteria, operational complexity, cost, and site planning.

W EST YOST 8 City of Fairfield
City of Vacaville

Initial Scope of Services {FY 24/ 25 and FY 25/ 26)
NBRWT P Expansion Program Management
West Yost will lead a joint Project Scoping Workshop to identify which offsite infrastructure projects will be included in a combined project with the NBRWTP improvements, and which offsite project will proceed in parallel as separate projects. The scope of offsite projects to be considered for Vacaville will be based on findings developed under Task 4. The scope of offsite projects to be considered for Fairfield (if any) will be based on the PUMP with input from City staff.

Development of the Benchmark Project will include updates and refinements to facility-specific discussions in Fairfield's PUMP, modified to reflect the results ofT ask 3, Task 4, and Task 5.4 of this scope of work. Design criteria will be presented in sufficient detail to communicate the Cities' performance expectations and preferences, and to provide a basis for evaluation of future proposals for design and construction of the improvements.

Key deliverables prepared under this subtask will include design criteria tables and conceptual site plans for the NBRWTP and selected offsite improvements, including conceptual pipeline alignments.

Task 5.6. Project Implementation and Schedule
The objectives of this task will be to identify and characterize - in sufficient detail for planning purposes - the types, sequencing, and durations of the various steps necessary to implement the project. West Yost will work with the Cities to outline requirements for environmental documentation and permitting, non­ environmental permitting, land acquisition, procurement document development, bid/ proposal evaluation, design and construction, facility startup and commissioning, and project closeout. A project schedule will be developed with appropriate durations, relationships, and sequencing of key activities.

Environmental consultant input may be warranted during this subtask, and may be added to the scope and budget if determined to be necessary.

Task 5. 7. Cost Estimates
Capital and operating cost estimates will be developed for the Benchmark Project, as well as the supporting engineering, environmental, land acquisition, legal, other administrative activities necessary to support the project. Construction costs will rely primarily on parametric estimating tools incorporating actual facility cost data from recently constructed projects, and will be supported where necessary with more focused, quantity-based estimates for certain facilities. Operating costs will rely on the estimated power, chemical, labor, and equipment replacement and repair needs associated with the Benchmark Project. A 20- to 30-year lifecycle cost analysis will be prepared to combine capital and operating costs.

Task 5.8. Benchmark Design Report
Based on the May 2024 NBRWTP TM, depending on the updated capacity and phasing plan, treatment improvements are expected to include intake screening, ozonation facilities, flash mixing, pretreatment trains (i.e., flocculation/sedimentation basins), dual media filters, washwater equalization basins, washwater clarifiers, and sludge lagoons. Other onsite improvements include yard piping, electrical improvements, pumping and metering facilities, and chemical storage. Offsite improvements may include treated water transmission, blending, storage and pumping facilities. The capacity and phasing options will be based on those presented in the May 2024 NBRWTP TM and one of the options will be refined based on discussions with the staff of both Cities. The improvement and options defined in Tasks 5.1 through 5.4 will serve as the basis for preliminary site layouts showing the expanded NBRWTP.

WESTYOST 9 City of Fairfield
City of Vacaville

Initial Scope of Services (FY 24/ 25 and FY 25/ 26)
NBRW TP Expansion Program Management
The likely CEQA documentation and actions will be identified, and will affect both the costs and schedule for improvements. Similarly, an assessment of environmental permits and non-environmental permits (e.g., encroachment permits) will be performed. Additionally, potential property purchases and/or easement acquisitions will be identified.

Upon completion of Tasks 5.1 through 5.7, all of the activities under Task 5 will be documented in a Benchmark Project Report that will be submitted to the appropriate staff from both Cities for review and comment.

Task 5 Assumptions
Three meetings with the staff of both Cities to discuss improvements, options, layouts, criteria, costs, and schedule
• Hydraulic evaluations (if needed) to further define offsite improvements for Fairfield would be performed under separate contract, or under an added scope and budget for this task • Meetings with environmental and/or regional water agencies will be identified but are not included in this scope
• One meeting to discuss land/easement acquisition
• One meeting to review/discuss the Benchmark Project Report • Evaluation of North Bay Aqueduct and Putah South Canal conveyance capacity will be evaluated under an added scope item, if necessary
The scope and design criteria for any Project elements addressing repair and rehabilitation needs will be S(:!ecified by Ci!)'. staff and incor orated in the Benchmark Project ReRort.

Task 5 Deliverables
• Preliminary NBRWTP site layouts
• NBRWTP design criteria and performance goals (TM or Draft report section) • Offsite facility design criteria summary
• Preliminary cost and schedule summaries
• Draft and final Benchmark Project Report
• Agendas and summarv notes for each meeting and workshoR TASK 6. OUTSIDE FUNDING
Several potential funding mechanisms exist to support the expansion of the NBRWTP. Funding is expected to include some combination of water rates, connection fees, low-interest loans, and/or state and federal grants. Rate studies will be performed independently by both Cities, and it is assumed that a financing plan will be developed by others, as needed to support the internal funding strategy.

The focus of this task will be on the identification of loan and grant funding options available to support the NBRWTP expansion. If warranted, future scope and budget authorizations may include assistance in preparing funding applications, construction labor compliance monitoring, grant/loan administration, and reporting. The initial key subtasks include:
• Task 6.1. Funding Research
• Task 6.2. Meetings with Funding Agencies
• Task 6.3. Funding Strategy TM
• Task 6.4. Ongoing Opportunity Monitoring
W EST YOST 10 City of Fairfield
City of Vacaville

Initial Scope of Services (FY 24/ 25 and FY 25/ 26)
NBRWTP Expansion Program Management
Potential funding sources available for this project include:
• Federal Funding Programs
U.S. Bureau of Reclamation WaterSMART Drought Response Program for Drought Resiliency Projects: Funding can be up to $3,000,000 per project, with a SO percent cost share
U.S. Bureau of Reclamation WaterSMART Planning and Project Design Program. Per project funding can be up to $400,000 with a SO percent cost share Federal Emergency Management Agency (FEMA) Hazard Mitigation Grant Program.

Maximum per project funding is not specified but awards are often in the tens of millions of dollars per project with a 25 percent cost share U.S. Environmental Protection Agency (USEPA) Midsize and Large Drinking Water System Infrastructure Resilience and Sustainability Grant. Per project funding can be up to $5 million with a 10 percent cost share
• State Funding Programs
Safe Drinking Water State Revolving Fund (SRF) loan program: Offers interest rates at less than half the municipal bond rate
California Infrastructure Bank (I-Bank): Program funding is available in amounts ranging from $50,000 to $25,000,000, with loan terms of up to 30 years Additional state funding program may become available in FY25/26 if the Safe Drinking Water, Wildfire Prevention, Drought Preparedness, and Clean Air Bond Act of 2024 (otherwise known as the Proposition 4 California Climate Bond) is passed by voters in November 2024. This bond proposes to allocate $3.8 billion to water projects The scope for Task 6 will involve investigating and tracking the status of available outside funding sources, meeting with relevant funding agencies, and documenting the efforts and findings in a TM. Ongoing monitoring and maintaining an up-to-date list of opportunities is also proposed.

Task 6 Assumptions
• One meeting with Fairfield and Vacaville staff to discuss potential available funding options • Three meetings with funding agencies
• Periodic meetings to review updates to the list of opportunities (Funding Opportunity Matrix or tracking spreadsheet) will be held in conjunction with routine project team meetings • A Financing Plan will be develoRed seRarately by others Task 6 Deliverables
• Agendas and summary notes for each meeting
• Funding Opportunity Matrix or tracking spreadsheet
• Draft and final funding strategy TM - ~ -
TASK 7. PROJECT DELIVERY METHOD EVALUATION
A variety of project delivery methods may be available for the NBRWTP expansion and related offsite projects, including traditional design-bid-build as well as collaborative project delivery methods such as progressive design-build. Key subtasks include:

WESTYOST 11 City of Fairfield
City of Vacaville

Initial Scope of Services {FY 24/ 25 and FY 25/ 26)
NBRWTP Expansion Program Management
• Task 7.1. Consultations with Staff and Legal Counsels of Both Cities • Task 7.2. Project Delivery Methods TM
• Task 7.3. Presentations to City Councils
One meeting with the staff of both Cities, and another one that includes legal counsels will be conducted to review and compare options, discuss needs and constraints, and develop a preferred delivery method.

In the initial meeting, West Yost will present a summary of the pros and cons of each available project delivery method as it relates specifically to this project. The information will be summarized and presented in a brief draft TM for presentation to both City Councils with a recommended approach based on the staff discussions. The TM will then be finalized based on feedback from the City Councils.

Task 7 Assumptions
• One meeting with Fairfield and Vacaville staff and a second that includes legal counsels to discuss available/preferred project delivery methods
• Two resentations (one each,._) t;;.;;o;...C.;;.i""!Y'--"'-Co.;;.u;;;;.n;.;.c;;..;.i;.;;;ls ___.

Task 7 Deliverables
• Agendas and summary notes for each meeting
• Presentation slides for delivery to City Councils
• Draft and final P.roject delive!:'{, recommendations TM TASK 8. BUSINESS CASE DOCUMENTATION
Upon completion of Tasks 3 through 7, West Yost will develop a business case document. The document will be useful to both Cities in presenting to their respective City management and councils regarding the need for the NBRWTP expansion and the participation of both Cities. Key subtasks to be performed under Task 8 include:
• Task 8.1. Business Case Report
• Task 8.2. City Council Presentations/Hearings
The Business Case Report will describe the key drivers behind the need for NBRWTP expansion and will rely heavily on the work products completed under the previous tasks. Key drivers include water quality concerns (especially emerging contaminants, such as chromium-VI and PFAS), future demand projections, and the need for water supply diversity. The report will also summarize the need for an updated JPA, the extent of facilities required for NBRWTP expansion, preliminary costs and schedule information, environmental and permitting steps, and the funding strategy. All relevant materials will be presented at City Council sessions/hearings for both Cities.

Task 8 Assumptions
• Two City Council meetings/hearings (one for each City) • A formal economic justification will not be required, given the nature of the project drivers • Planning level costs with ample contingencies will be presented • The budget and scope for this task will be reviewed and updated (if necessary) as the project is further defined
Task 8 Deliverables
WESTYOST 12 City of Fairfield
City of Vacaville

Initial Scope of Services {FY 24/ 25 and FY 25/ 26)
NBRWTP Expansion Program Management
• Agendas and summary notes for each meeting/hearing
• Draft and final Business Case Report
• Presentation materials for City Council meetings/hearings -------~--------' TASK 9. PROJECT MANAGEMENT AND PROGRAM COORDINATION West Yost will serve as an advisor and program manager for both Cities from now through completion of construction. In this role, West Yost will guide the Cities through multiple aspects of the program, coordinating the combined efforts to advance the Project. This task is initially authorized through June 2026, and is expected to be extended and adapted as the Project and program management needs are further defined. Accordingly, the initial budget for Task 9 is based on an assumed level of effort that will be affected by many outside factors. The allocation of budget to program management activities under this task will be monitored and adjusted collaboratively with the Cities' project manager.

Key subtasks to be performed under Task 9 include:
• Task 9.1. Program Management Plan (PMP)
• Task 9.2. Program Budgeting and Cashflow Projections
• Task 9.3. Program Schedule
• Task 9.4. Progress Monitoring and Invoicing
The subtasks are further described as follows.

Task 9.1. Program Management Plan {PMP)
The PMP will describe the processes and controls necessary to successfully execute the Project, and will be revised and updated as the Project proceeds. Accordingly, the PMP will address the roles and responsibilities of each Project team member, the project controls needed to manage various aspects of the program (such as document management, scheduling, change management, accounting, and budgeting), and the quality assurance/quality control (QA/QC) procedures to be followed.

Task 9.2. Program Budgeting and Cashflow Projections
Program budgeting will involve cost projections in both summary and line-item form for all elements of the Project. Updates will be performed at least semi-annually, and the task/line-item structure will be adapted as the Project progresses and the budget is refined over time. Annual cash flow projections will be maintained as part of the budgeting process.

Task 9.3. Program Schedule
A detailed Program schedule will be maintained, with updates on an as-needed basis, approximately quarterly. In the future, the Program schedule will incorporate or reference design and construction schedules developed by the entity(ies) selected to design and construct the facilities.

Task 9.4. Progress Monitoring and Invoicing
Biweekly virtual meetings with the Project Manager(s) for the Cities will be held to review Project progress, action items, critical path items, and upcoming meetings or decisions needed. West Yost will use a Project SharePoint site to post relevant information and documents, including the Action Item Log WESTYOST 13 City of Fairfield
City of Vacaville

Initial Scope of Services (FY 24/ 25 and FY 25/ 26)
NBRWTP Expansion Program Management
and Decision Log. Monthly invoices will be prepared that include a summary of the work completed under each task.

Task 9.5 Program Technical Team Meetings
Program technical team meetings will be held at least bi-monthly to make decisions and keep senior staff informed. These meetings will be an important tool for building and maintaining project momentum.

Monthly technical team meetings are planned for the first seven months of the program.

TASK 10. AS-NEEDED SERVICES
Services may be added to this scope of work based on project needs, for example:

Potential activities that may be initiated within the time frame of this initial scope of work, before the end of FY 25/ 26:
• Collaborative Delivery Procurement Document Development • Communications (Presentations, Management Briefings)
• Public Outreach
• SCADA Assessment and Implementation/ Programming
• Cyber-lnformed Engineering Review
• Specialty Subconsulting, including but not limited to:

Environmental
Financial Planning
Surveying
Right-of-Way/ Property Acquisition
Potential activities beyond FY 25/ 26:
• Collaborative Delivery Contract Oversight
• Design Review
• Construction Monitoring
• Senate Bill 991 Reporting
A budget allowance is included for Task 10; however, a specific scope of work and associated budget will be agreed to and authorized by the Cities prior to performing services under this task or new tasks.

GENERAL ASSUMPTIONS
• The Project will include the first phase of expansion at the NBR • The Project will include some offsite transmission facilities to connect to Vacaville's distribution system, and possibly blending facilities
• The Project may include some offsite facilities (prior to distribution system connection) for Fairfield
W EST YOST 14 City of Fairfield
City of Vacaville

Initial Scope of Services (FY 24/ 25 and FY 25/ 26)
NBRWTP Expansion Program Management
• Some data collection and analysis is needed to better define the Project. The Cities will collect and West Yost will evaluate raw data as time allows without unnecessarily delaying start of design
• Program Management: In addition to the Project encompassing the NBRWTP expansion plus any combined offsite improvements, West Yost will assist with monitoring, coordinating and performing tasks associated with other related activities and projects, including other capital projects
• West Yost's scope and budget will be adapted to fit the needs of the Cities over the course of the program.
• The initial scope and budget authorization generally includes work that precedes preparation of project procurement documents; however, preparation of procurement documents could be initiated before the end of FY 25/26 if authorized as an additional task. • Environmental review (CEQA/NEPA) and permitting may be added under West Yost's contract, but is not initially included
• Legal counsel will be provide through the Cities' legal departments, including (if needed) outside specialty counsel for collaborative delivery contracting

UNKNOWNS POTENTIALLY AFFECTING SCOPE, SCHEDULE AND/ OR BUDGET The following list identifies some of the unknowns that could change the schedule and budget:
• Environmental review (CEQA/NEPA) requirements for offsite facilities • Environmental review (CEQA/NEPA) requirements for treatment (onsite) facilities • Extent of offsite facilities needed
• The mix of offsite improvements to be included in the main Project contract vs. separate projects/contracts
• Design and construction procurement method(s) to be selected for each element of the Project
• Property acquisition needed for offsite facilities
• Number of alternatives and/or phases to be considered • Level of prescriptiveness included in Benchmark Design Report, which could affect the amount of analysis needed before design begins
W EST YOST 15 City of Fairfield
City of Vacaville

Attachment B
Program Schedule

NBR Expansion: Program Schedule (July - June Fiscal Year) ATTACHMENT B Rev: 10-10-2024 ID Task Name Duration Start Finish Half 2, 2025 Half 1, 2026 Half 2, 2026 Half 1, 2027 Half 2, 2027 Half 1, 2028 D J F M A M J J A 5 0 N D _ _l F M l-~ /\L J J A _ _s_ Q_ N p J F M - A M _ ___l - J_ A 2_9 N Q 0 NBR Expansion Program 1620 days Mon 12/ 9/ 2<Thu 3/ 6/ 31 1 NTP for Program Management Services 0 days Mon 12/9/24 Mon 12/9/24 • ~ /9 2 Task 9: Project Management and Program Coordination 1620 days Mon 12/ 9/ 24 Thu 3/6/ 31 3 Task 9.1: Program Management Plan 2 mans Mon 12/9/24 Tue 2/4/25 i~ rF1 4 FY 24/25 (Tasks 9.2 - 9.5) 142 days Mon 12/9/24 Mon 6/30/25 T s General Program Management (Tasks 9.2 - 9.4) 142 days Mon 12/9/24 Mon 6/30/25 I 7 Task 9.5: Program Team Technical Meetings 17) 142 days Mon 12/9/24 Mon 6/30/25 8 FY 25/26 (Tasks 9.2 - 9.5) 256 days Tue 7/1/25 Tue 6/ 30/26 I
I
1 9 General Program Management (Tasks 9.2 - 9.4) 256 days Tue 7/1/25 Tue 6/30/26 - 11 Task 9.5: Program Team Technical Meetings (6) 256 days Tue 7/1/25 Tue 6/30/26 - 12 FY 26/27 - FY 30/31 (Tasks 9.2 - 9.5) 1222 days Wed 7/1/26 Thu 3/6/31 I ~ -tfi-HttH;fi-l-4ftfli1-fi+i.;.._..illfit1Ji111!111i-Ututth:_ .. _ .. - - ·--· ..... 13 14 Task 1: Memorandum of Understanding 100 days Mon 12/9/ 24 Wed 4/30/25 1S Task 1.1: Framework for MOU 1 man Mon 12/9/24 Tue 1/7 /25 I • 16 Task 1.2: Meeting with Legal Counsels 1 man Wed 1/8/25 Tue 2/4/25 t+ 17 Task 1.3: City Council Study Sessions [OPTIONAL] 2 mans Wed 2/5/25 Wed 4/2/25 I 18 Task 1.4: Draft, Revised Draft, and Final MOU 4 mans Wed 1/8/25 Wed 4/30/25 19 20 Task 2: Joint Powers Agreement Update 180 days Thu 5/ 1/25 Thu 1/ 15/26 I I 21 Task 2.1: JPA Review/Draft Modifications 4 mans Thu 5/1/25 Fri 8/22/25 22 Task 2.2: Council Workshops 1 man Mon 8/25/25 Mon 9/22/25 J I t-1 23 Task 2.3: Revised JPA 4 mans Tue 9/23/25 Thu 1/15/26 I 24 I 25 Task 3: Data Collection and Additional Studies 205 days Tue 12/31/ 24 Mon 10/20/25 26 Task 3.1: Existing Information Review Workshop 5 days Tue 12/31/24 Tue 1/7 /25 ~ 27 Task 3.2: Sampling and Data Collection Plan 15 days Wed 1/8/25 Tue 1/28/ 25 .--, 33 Task 3.3: Data Collection and Analysis 190 days Wed 1/22/25 Mon 10/20/25 42 Task 3.4: Additional Studies 150 days Wed 1/22/25 Fri 8/22/ 25 47 48 Task 4: Vacaville Capacity Strategy 160 days Mon 12/9/24 Fri 7 /25/25 49 Task 4.1: Refinement of Demand Projections 40 days Mon 12/ 9/ 24 Tue 2/ 4/ 25 r-i-1 S3 Task 4.2: Evaluation of Surface and Groundwater 80 days Wed 2/5/25 Thu 5/29/25 Supply Options
63 Task 4.3: Vacaville Capacity Strategy TM 40 days Fri 5/30/25 Fri 7/25/25 r--, 64 Draft TM 1 man Fri 5/30/25 Thu 6/26/25
-t 6S Meeting with City 1 wk Fri 6/27 /25 Thu 7/3/25
66 Final TM 3 wks Mon 7/7/25 Fri 7 /25/25 t.- 67
68 69
70

NBR Expansion: Program Schedule (July - June Fiscal Year) ATTACHMENT B Rev: 10-10-2024 ID Task Name Duration Start Finish Half 2, 2025 Half 1, 2026 Half 2. 2026 Half 1, 2027 Half 2, 2027 Half 1, 2028 D J F M A M J J A s 0 N D J F M A M J J A s 0 N D J F M - A M 1 J A s 0 N D 71 Task 5: Facilities Planning 340 days Wed 1/8/25 Thu 5/7/ 26 I I I I - I I I I 72 Task 5.1: Raw at Treated Water Quality 220 days Wed 1/8/25 Mon 11/17 /25 Characterization
75 Task 5.2: Existing Facilities Description 60 days Wed 1/8/25 Wed 4/2/25 r----, 76 Touch up (maybe expand) descriptions from PUMP 3 mons Wed 1/8/25 Wed 4/2/25 .... -- 77 Task 5.3: Need for Project 20 days Mon 8/25/25 Mon 9/22/25 ii 78 Merge commentary from PUMP with results from 1 mon Mon 8/25/25 Mon 9/22/25 & Tasks 3 and 4
79 Task 5.4: Treatment Performance and Technology 40 days Mon 8/25/25 Mon 10/20/25 Goals
80 Treatment performance and technology goals 1 man Mon 8/25/25 Mon 9/22/25 LL workshop
81 Goals TM or Draft Report Chapter 1 mon Tue 9/23/25 Mon 10/20/25 I I 82 Task 5.5: Benchmark Project Development 120 days Fri 6/27/25 Wed 12/17 /25 1-I 83 Refine PUMP analyses with updated capacity 1 mon Mon 8/25/25 Mon 9/22/25 requirements
L 84 Refine design criteria and unit process improvement 1 mon Tue 9/23/25 Mon 10/20/25 descriptions
85 Limited vendor outreach, if needed 1 mon Tue 9/23/25 Mon 10/20/25 - 86 Develop Vacaville offsite improvements design 3 mans Mon 7/7/25 Mon 9/29/25 I
criteria and description
87 Develop Fairfield offsite improvements design criteria 3 mons Mon 7/7/25 Mon 9/29/25 and description
88 Develop plant electrical design criteria for resilience 4 mans Fri 6/27 /25 Mon 10/20/25 (more detailed than PUMP)
l I 89 Evaluate SCADA Needs 4 mans Fri 6/27/25 Mon 10/20/25 90 Project Scoping Workshop 1 mon Tue 10/21/25 Mon 11/17 /25 ,ilaal- 91 Prepare updated overall WTP site plan 2 mans Tue 10/21/25 Wed 12/17/25 I I 92 Prepare conceptual Vacaville transmission main 2 mons Mon 8/18/25 Mon 10/13/25 ~L-t alignment drawings ~
93 Task 5.6: Project Implementation and Schedule 40 days Thu 12/18/25 Thu 2/12/26 94 Identify environmental, permitting, and land 1 man Thu 12/18/25 Thu 1/15/26 acquisition requirements I 95 Develop overall implementation sequencing and 2 mons Thu 12/18/25 Thu 2/12/26 --- schedule
I 96 Task 5.7: Cost Estimating 80 days Tue 10/21/25 Thu 2/12/26 101 Task 5.8: Prepare Benchmark Design Report 160 days Tue 9/23/25 Thu 5/7/26 102 Draft Report 6 mons Tue 9/23/25 Thu 3/12/26
I 103 Review by Cities 1 mon Fri 3/13/26 Thu 4/9/26
- 104 Final Benchmark Project Report 1 mon Fri 4/10/26 Thu 5/7/26 I ,_ I 105 I 106
107 I

NBR Expansion: Program Schedule (July - June Fiscal Year) ATTACHMENT B Rev: 10-10-2024 ID Task Name Duration Start Finish Half 2, 2025 Half 1, 2026 Half 2, 2026 Half 1, 2027 Half 2, 2027 Half 1, 2028 -- D J F M. A M J J A s 0 N 0 J F M A M J J A s 0 _ .ti Q___J _ .f__ M - A _ tyi __ / _ J ~ - s Q_ __ ]'J - Q 108
I -r -
109 Task 6: Outside Funding 1620 days Mon 12/9/24 Thu 3/6/31 I -
110 Task 6.1: Funding Research 6 mons Mon 12/9/24 Thu 5/29/25 111 Task 6.2: Meetings with Funding Agencies 2 mons Thu 4/3/25 Thu 5/29/25 +t 112 Task 6.3: Funding Strategy TM 2 mons Fri 5/30/25 Fri 7/25/25 [ ,- 113 Task 6.4: Ongoing Opportunity Monitoring 18 mons Mon 12/9/24 Thu 5/7 /26 114 Future Tasks 1500 days Fri 5/30/25 Thu 3/6/31 I
I
11S Develop Funding Applications 6 mons Fri 5/30/25 Mon 11/17 /25 T - ttlt1+ rtttttttnt,c-t,111titt, - ~ 116 Provide Post-Application Support 18 mons Tue 11/18/25 Thu 4/8/27 : .'.~ ttl .. 1111111111 .. H+H- =ml +mmr:Hn:7H+H:Ym,mcr-::mmt 117 Finalize Funding Agreement(s) 2 mons Fri 4/9/27 Thu 6/3/27 ~ 118 Provide Funding Reporting and Compliance 49 mons Fri 6/4/27 Thu 3/6/31 ~ Monitoring
119
120 Task 7: Project Delivery Method Evaluation 140 days Fri 5/30/25 Thu 12/18/25 121 Task 7.1: Consultations with Staff and Legal Counsel 3 mans Fri 5/30/25 Mon 8/25/25 '..cJ 122 Task 7.2: Project Delivery Methods TM 2 mons Mon 8/25/25 Tue 10/21/25 LllillC!ll!ff I 123 Task 7.3: Presentations to City Councils 2 mons Tue 10/21/25 Thu 12/18/25 ,-....... 124 125 Task 8: Business Case Documentation 120 days Thu 12/18/25 Thu 6/4/26 126 Task 8.1: Business Case Report 100 days Thu 12/18/25 Thu 5/7 /26 I 130 Task 8.2: City Council Presentations/Hearings 1 mon Fri 5/8/26 Thu 6/4/26 I - 131
132 Task 10: As-Needed Services 1500 days Mon 12/9/24 Thu 9/19/30 I 133 Budget Allowance (FY 24/25 and 25/26) 398 days Mon 12/9/24 Tue 6/30/26 134
13S Communications 1500 days Mon 12/9/24 Thu 9/19/30 I 136 Communicate with Management and Elected Officials 1500 days Mon 12/9/24 Thu 9/19/30 - - -- -
Thu 5/1/25 Fri 7/28/28 137 Public Outreach 840 days I 138 Communicate with the Rate Payers 18 mons Thu 5/1/25 Thu 9/24/26 :rtmttt:zartt-tittm,ttffll lfri:"itttltttt·,rttm,111mmt1tt=t ttmttt:r,thrttitmttt!lt 139 Outreach to Project Neighborhood(s) 12 mons Fri 8/27/27 Fri 7/28/28 -
140 SCADA l day Mon 12/9/24 Mon 12/9/24 I
141 Network Assessment 1 day Mon 12/9/24 Mon 12/9/24 I
142 Programming and Configuration 1 day Mon 12/9/24 Mon 12/9/24 J 143 Cyber-lnformed Engineering (CIE) Review l day Mon 12/9/24 Mon 12/9/24 144 General Assessment 1 day Mon 12/9/24 Mon 12/9/24
l 145 CIE Design Review 1 day Mon 12/9/24 Mon 12/9/24
146 Specialty Subconsulting l day Mon 12/9/24 Mon 12/9/24 147 Financial Planning 1 day Mon 12/9/24 Mon 12/9/24
148 Surveying 1 day Mon 12/9/24 Mon 12/9/24
149 Right-of-Way/ Property Acquisition 1 day Mon 12/9/24 Mon 12/9/24 T I

NBR Expansion: Program Schedule (July - June Fiscal Year) ATTACHMENT B Rev: 10-10-2024 ID Task Name Duration Start Finish
D
Half 2, 2025 Half 1, 2026

J F M A M J A S
150
151
152
153
154
Environmental Review 14 mans
COLLABORATIVE DELIVERY (Example - Progressive DB) 1620 days [Optional] Develop Procurement Guidance Document 1 mon
155
156
157
Develop RFO/RFP 6 mans
Develop Draft Collaborative Delivery Contract 6 mans
Conduct Outreach to Prospective Teams and Hold 6 mans
Meetings
Issue RFO/RFP (Progressive Design Build) 158
159
160
161
162
163
164
165
166
167
168
169
170
171 KEY
(, 'ji ...:l l' I , , •~:, \•. ·I
Select PDB Team
Negotiate Contract and Award
-~1,.-p .:1,~' •. •Jl·,. I,_, .. Ii ·1;; I t;f,,11~ 1° ··, ;p .. _;I Negotiate GMP
Issue Notice to Proceed with Phase 2
n,,I ·,., 1.,,_.._.1;: · J ;-_: ( ,_·,n:.lrL( t ln11 t_,,_.-._-f1t1·1,1:, Final Completion
Manage Collaborative Delivery Contract
Quality Assurance/ Construction Monitoring
Senate Bill 991 Reporting
0 N
Half 1, 2028

J A S O N D
O days
} 1 •i "'
l,} 1- ;c 1,
2 mans
o days
~ , L l , j.
0 days
56 mons
40 mans
700 days
Thu 5/1/25
Mon 12/ 9/ 24 Thu 3/ 6/31
Tue 11/18/25 Thu 12/18/25
Thu 12/18/25 Thu 6/4/26
Thu 12/18/25 Thu 6/4/26
Thu 12/18/25 Thu 6/4/26
Thu 6/4/26 Thu 6/4/26
I· 1,;. ':,/Jt
Fri 6/2/28
Thu 6/4/26
I ,I I - ;1
2 mans
2 mans
Fri 7 /31/26 Thu 9/24/26
Fri 9/25/26 Thu 11/19/26
t·1 I • 1l, I ,11t.·J
~ +i.;:;fl.lCFi "ttttt :....'irtb
Half 2, 2026 Half 1, 2027 Half 2, 2027

O J F M A M J J A S O N D J F M A M J
-,il-hEmH,~fm ,,;>1-flb,;; ~ r:- - - - - - - - - - - - - - f:iHI
1 4nu: -~~;:.:...u.i-i!H:t.L4HH!m ~
act • ., ll!lttt! Ul!ti±d:!w.
4: 1;1 ·'"" ·· .u= :-' .. ,.
6/4
.ttt 1
~ ~
Thu 7/27/28
Thu 7 /27 /28 Thu 7 /27 /28
f-~1 I ,II ~ - ,·: :, I
Thu 3/6/31 Thu 3/6/31
Fri 11/20/26 Thu 3/6/31
Fri 2/11/28 Thu 3/6/31
Fri 6/2/28 Thu 2/6/31
23!i" ..;,.:~ 1=
172
173
1 J::k lucluded 111 l11itiJl Sco1JI.! & BuJgct
TJ:J Nut lucluded in l11it1;.i! Scope & Bud1,;t:t ltm'"'c;mtmtml "' i ttt!'irmf'

Attachment C
Fee Estimate by Subtask

Fee Estimate by Fiscal Year (July-June) Attachment C Rev: 10-10-24 ID Task Name .Cost '25 '26
0 jNBR Expansion Program $1,993,09 $765,475 $1,227,619
NTP for Program Management Services $
2 Task 9: Project Management and Program Coordination $954,77 $366,876 $587,897 3 Task 9.1: Program Management Plan $14,432 $14,432
4 FY 24/ 25 (Tasks 9.2 - 9.5) $352,44 $352,444
5 General Program Management (Tasks 9.2 - 9.4) $300,92 $300,926 7 Task 9.5: Program Team Technical Meetings (7) $51,51 $51,518 8 FY 25/ 26 (Tasks 9.2 - 9.5) $587,89 $587,897
9 General Program Management (Tasks 9.2 - 9.4) $547,80 $547,805 11 Task 9.5: Program Team Technical Meetings (6) $40,09 $40,092 12 FY 26/27 - FY 30/31 (Tasks 9.2 - 9.5) $
13 14 Task 1: Memorandum of Understanding $53,77 $53,770 15 Task 1.1: Framework for MOU $16,57 $16,576
16 Task 1.2: Meeting with Legal Counsels $6,77 $6,773
17 Task 1.3: City Council Study Sessions [OPTIONAL] $8,10 $8,104 18 Task 1.4: Draft, Revised Draft, and Final MOU $22,31 $22,318 19 20 Task 2: Joint Powers Agreement Update $58,50 $14,436 $44,067 21 Task 2.1: JPA Review/ Draft Modifications $27,49 $14,436 $13,061 22 Task 2.2: Council Workshops $19,452 $19,452
23 Task 2.3: Revised JPA $11,553 $11,553
24 25 Task 3: Data Collection and Additional Studies $199,46 $127,502 $71,963 26 Task 3.1: Existing Information Review Workshop $6,10 $6,109 27 Task 3.2: Sampling and Data Collection Plan $19,57 $19,575 33 Task 3.3: Data Collection and Analysis $86,83 $26,284 $60,546 42 Task 3.4: Additional Studies $86,95 $75,534 $11,417
47 48 Task 4: Vacaville Capacity Strategy $103,01 $96,324 $6,694 49 Task 4.1: Refinement of Demand Projections $14,52 $14,524 53 Task 4.2: Evaluation of Surface and Groundwater Supply $66,06 $66,066 Options
63 Task 4.3: Vacaville Capacity Strategy TM $22,42 $15,734 $6,694 64 Draft TM $14,543 $14,543
65 Meeting with City $2,97 $1,191 $1,786
66 ' Final TM $4,90 $4,908
67 68
69 70
71 Task 5: Facilities Planning $296,39 $12,102 $284,294 72 Task 5.1: Raw at Treated Water Quality Characterization $7,12 $4,711 $2,411 75 Task 5.2: Existing Facilities Description $6,81 $6,814 76 Touch up (maybe expand) descriptions from PUMP $6,81 $6,814 77 Task 5.3: Need for Project $5,22 $5,221
78 Merge commentary from PUMP with results from Tasks 3 $5,221 $5,221 and 4
NBR Expansion Program Page 1

Fee Estimate by Fiscal Year (July-June) Attachment C Rev: 10-10-24 ID .Task Name jcost '25 '26
79 Task 5.4: Treatment Performance and Technology Goals $21,97 $21,973 80 Treatment performance and technology goals workshop $11,103 $11,103 81 Goals TM or Draft Report Chapter $10,87 $10,870
82 Task 5.5: Benchmark Project Development $123,22 $576 $122,651 83 Refine PUMP analyses with updated capacity requirements $6,74 $6,748 84 Refine design criteria and unit process improvement $6,831 $6,831 descriptions
85 I
Limited vendor outreach, if needed $5,95 $5,957
86 Develop Vacaville offsite improvements design criteria and $7,87 $7,875 description
87 Develop Fairfield offsite improvements design criteria and $6,24 $6,244 description
88 Develop plant electrical design criteria for resilience (more $10,192 $255 $9,937 detailed than PUMP)
89 Evaluate SCADA Needs $12,863 $322 $12,541
90 Project Scoping Workshop $12,33 $12,330
91 Prepare updated overall WTP site plan $25,87 $25,875 92 Prepare conceptual Vacaville transmission main alignment $28,313 $28,313 drawings
93 Task 5.6: Project Implementation and Schedule $48,987 94 Identify environmental, permitting, and land acquisition $21,628 requirements
95 Develop overall implementation sequencing and schedule $27,359 $27,359 96 Task 5. 7: Cost Estimating $35,26 $35,266
101 Task 5.8: Prepare Benchmark Design Report $47,78 $47,785 102 Draft Report $32,00 $32,003
103 Review by Cities $
104 Final Benchmark Project Report $15,782 $15,782
105
106
107
108 Task 6: Outside Funding $49,61 $29,830 $19,788
109 Task 6.1: Funding Research $7,95 $7,952
110 Task 6.2: Meetings with Funding Agencies $5,35 $5,358 111 Task 6.3: Funding Strategy TM $14,822 $8,152 $6,670 112 Task 6.4: Ongoing Opportunity Monitoring $21,48 $8,368 $13,118 113
118
119 Task 7: Project Delivery Method Evaluation $56,25 $8,005 $48,249 120 Task 7.1: Consultations with Staff and Legal Counsel $21,832 $8,005 $13,827 121 Task 7.2: Project Delivery Methods TM $14,30 $14,308 122 Task 7.3: Presentations to City Councils $20,11 $20,114 123
124 Task 8: Business Case Documentation $60,06 $60,065
125 Task 8.1: Business Case Report $45,97 $45,978
129 Task 8.2: City Council Presentations/ Hearings $14,08 $14,087 130
131 Task 10: As-Needed Services $161,23 $56,629
NBR Expansion Program Page 2

EXHIBIT "B"

PAYMENT
1) The total contract price for services rendered by CON SU LT ANT under this Agreement shall not exceed $1,993,100.
2) Payment shall be made to CONSULTANT in accordance with the CONSULTANT'S price proposal as accepted by the City, and CONSULTANT shall submit monthly invoices to the CITY for the same.
3) Any additional meetings or work required beyond that set forth in Exhibit "A" shall be mutually agreed to in writing by the CITY and CONSULTANT, and shall be billed on a time and materials basis to the City of Fairfield.
4 Revised 6/28/2024

Fee Estimate by Fiscal Year (July-June) Attachment C Rev: 10-10-24 ID .Task Name [Cost '25 I '26 I
0 INBR Expansion Program $1,993,09 $765,475 $1,227,619
j NTP for Program Management Services $
2 1 Task 9: Project Management and Program Coordination $954,77 $366,876 $587,897 3 Task 9.1: Program Management Plan $14,432 $14,432
4 FY 24/25 (Tasks 9.2 - 9.5) $352,44 $352,444
5 General Program Management (Tasks 9.2 - 9.4) $300,92 $300,926 7 Task 9.5: Program Team Technical Meetings (7) $51,51 $51,518 8 FY 25/ 26 (Tasks 9.2 - 9.5) $587,89 $587,897
9 General Program Management (Tasks 9.2 - 9.4) $547,80 $547,805 11 Task 9.5: Program Team Technical Meetings (6) $40,092 $40,092 - 12 FY 26/27 - FY 30/31 (Tasks 9.2 - 9.5) $
13 14 Task 1: Memorandum of Understanding $53,77 $53,770 15 Task 1.1: Framework for MOU $16,57 $16,576 -
16 Task 1.2: Meeting with Legal Counsels $6,773 $6,773
17 I Task 1.3: City Council Study Sessions [OPTIONAL] $8,10 $8,104 18 Task 1.4: Draft, Revised Draft, and Final MOU $22,31 $22,318 19 20 Task 2: Joint Powers Agreement Update $14,436 $44,067 21 Task 2.1: JPA Review/ Draft Modifications $14,436 $13,061 22 Task 2.2: Council Workshops $19,452
23 Task 2.3: Revised JPA $11,553
24 ·-·
25 Task 3: Data Collection and Additional Studies $199,46 $127,502 $71,963 26 Task 3.1: Existing Information Review Workshop $6,10 $6,109 27 Task 3.2: Sampling and Data Collection Plan $19,57 $19,575 33 Task 3.3: Data Collection and Analysis $86,83 $26,284 $60,546 42 Task 3.4: Additional Studies $86,95 $75,534 $11,417
47 - 48 Task 4: Vacaville Capacity Strategy $103,01 $96,324 $6,694 49 Task 4.1: Refinement of Demand Projections $14,52 $14,524 53 Task 4.2: Evaluation of Surface and Groundwater Supply $66,06 $66,066 Options
63 Task 4.3: Vacaville Capacity Strategy TM $22,42 $15,734 $6,694 64 Draft TM $14,54 $14,543
65 Meeting with City $2,97 $1,191 $1,786 -
66 Final TM $4,90 $4,908
67 68
69 70
71 Task 5: Facilities Planning $296,39 $12,102 $284,294 72 Task 5.1: Raw at Treated Water Quality Characterization $7,12 $4,711 $2,411 . 75 Task 5.2: Existing Facilities Description $6,81 $6,814 76 Touch up (maybe expand) descriptions from PUMP $6,81 $6,814 77 Task 5.3: Need for Project $5,22 $5,221
78 Merge commentary from PUMP with results from Tasks 3 $5,22 $5,221 and 4
NBR Expansion Program Page 1

Fee Estimate by Fiscal Year (July-June) Attachment C Rev: 10-10-24 ID .Task Name Cost '25 '26 I
79 Task 5.4: Treatment Performance and Technology Goals $21,97 $21,973 80 Treatment performance and technology goals workshop $11,103 $11,103 81 Goals TM or Draft Report Chapter $10,87 $10,870
82 Task 5.5: Benchmark Project Development $123,22 $576 $122,651 83 Refine PUMP analyses with updated capacity requirements $6,74 $6,748 84 Refine design criteria and unit process improvement $6,831 $6,831 descriptions
85 Limited vendor outreach, if needed $5,95 $5,957
86 Develop Vacaville offsite improvements design criteria and $7,875 $7,875 description
87 Develop Fairfield offsite improvements design criteria and $6,244 description
88 Develop plant electrical design criteria for resilience (more $10,19 $255 $9,937 detailed than PUMP)
89 Evaluate SCADA Needs $12,863 $322 $12,541
90 Project Scoping Workshop $12,33 $12,330
91 Prepare updated overall WTP site plan $25,87 $25,875 92 Prepare conceptual Vacaville transmission main alignment $28,31 $28,313 drawings
93 Task 5.6: Project Implementation and Schedule $48,98 $48,987 94 Identify environmental, permitting, and land acquisition $21,62 $21,628 requirements
95 Develop overall implementation sequencing and schedule $27,35 $27,359 96 Task 5.7: Cost Estimating $35,26 $35,266
101 Task 5.8: Prepare Benchmark Design Report $47,78 $47,785 102 Draft Report $32,003 $32,003
103 Review by Cities $
104 Final Benchmark Project Report $15,78 $15,782
105
106
107
108 Task 6: Outside Funding $49,61 $29,830 $19,788
109 Task 6.1: Funding Research $7,95 $7,952
110 Task 6.2: Meetings with Funding Agencies $5,35 $5,358 111 Task 6.3: Funding Strategy TM $14,82 $8,152 $6,670
112 Task 6.4: Ongoing Opportunity Monitoring $21,48 $8,368 $13,118 113 I
118
119 Task 7: Project Delivery Method Evaluation $56,25 $8,005 $48,249 120 Task 7.1: Consultations with Staff and Legal Counsel $21,832 $8,005 $13,827 121 Task 7.2: Project Delivery Methods TM $14,30 $14,308 122 Task 7.3: Presentations to City Councils $20,11 $20,114 123
124 Task 8: Business Case Documentation $60,06 $60,065
125 Task 8.1: Business Case Report $45,97 $45,978
129 Task 8.2: City Council Presentations/ Hearings $14,08 $14,087 130 '
131 Task 10: As-Needed Services $161,23 $56,629 $104,603 NBR Expansion Program Page 2

li'l/ W EST YOST • W ater. Eng ineered.
2024 Billing Rate Schedule
(Effective January 1, 2024, through December 31, 2024)*

POSITIONS

ENGINEERING

LABOR CHARGES (DOLLARS PER HOUR)
Principal/Vice President $355
Engineer/Scientist/Geolo ist Manager I/ II $335 I $351
Principal Engineer/Scientist/Geologist I/ II $302 / $322 Senior Engineer/Scientist/Geologist I/ II $272 / $286
Associate Engineer/Scientist/Geologist I/ II $226 / $243 Engineer/Scientist/Geologist I/ II $176 / $205
Engineering Aide $106
Field Monitorin Services $131
Administrative I/ II/ Ill/ IV $97 I $121 / $145 / $160

ENGINEERING TECHNOLOGY
Engineering Tech Manager I/ II $349 / $351
Princieal Tech Seecialist I/ II $320 I $331
Senior Tech Specialist I/ II $293 / $306
Senior GIS Analyst $265
GIS Analyst $251
Jechnical Specialist I/ II/ Ill/ IV $187 / $213 / $239 I $267 Technical Analyst I/ II $134 / $160
Technical Anal st Intern $108
Cross-Connection Control Specialist I/ II/ Ill/ IV $140 / $151 / $110 I $189 CAD Mana er
CAD Designer I/ II $164 / $185

CONSTRUCTION MANAGEMENT
Senior Construction Manager
Construction Manager I/ II/ Ill/ IV
Resident Inspector (Prevailing Wage Groups 4 / 3 / 2 / 1) Apprentice lnspecto_r _
CM Administrative I/ II
Field Services
$338
$201 / $215 / $228 / $289
$181 / $201 / $224 / $232
$164
$87 I $118
$232
■ Hourly rates include charges for technology and communication, such as general and CAD computer software, telephone calls, routine in-house copies/prints, postage, miscellaneous supplies, and other incidental project expenses. ■ Outside services, such as vendor reproductions, prints, and shipping; major West Yost reproduction efforts; as well as engineering supplies, etc., will be billed at the actual cost plus 15%. ■ The Federal Mileage Rate will be used for mileage charges and will be based on the Federal Mileage Rate applicable to when the mileage costs were incurred. Travel other than mileage will be billed at cost. ■ Subconsultants will be billed at actual cost plus 10%. ■ Expert witness services, research, technical review, analysis, preparation, and meetings will be billed at 150% of standard hourly rates. Expert witness testimony and depositions will be billed at 200% of standard hourly rates. ■ A finance charge of 1.5% per month (an annual rate of 18%) on the unpaid balance will be added to invoice amounts if not paid within 45 days from the date of the invoice. "This schedule is updated annually Page 1 of 2

" ' ' W EST YOST • W ater. Engineered.
2024 Billing Rate Schedule
(Effective January 1, 2024, through December 31, 2024)* Equipment Charges

EQUIPMENT BILLING RATES
2" Purge Pump & Control Box $300 / day
Aquacalc / Pygmy or AA Flow Meter $28 / day
Emergency SCADA System $35 / day
Field Vehicles (Groundwater) $1 / mile
Gas Detector $80 / day
Generator $60 / day
Hydrant Pressure Gauge $10 / day
-- ~- - - - - - - - - - - - - - - - - - ,-- - - - - - - - - - - - - - - Hydrant Pressure Recorder, lmi;iulse (Transient) - - - - - - - - - - - - ~ - - ~ - - - - $55 / day Hydrant Pressure Recorder, Standard $40 / day
-----------·-~--------------~ Low Flow Pump Back Pack $135 / day Low Flow Pump Controller $200 / day
Powers Water Level Meter $32 / day
Precision Water Level Meter 300ft $30 / day
Precision Water Level Meter 500ft $40 / day
Precision Water Level Meter 700ft $45 / day
QED Sample Pro Bladder Pump $65 /_da_.y _ _.

Skydio 2+ Drone (2 hour mimimum)
Stora e Tank
Sump Pump
Transducer Communications Cable
Transducer Components (per installation)
$24 / day
$10 / day
Trimble GPS - Geo 7x
Tube Length Counter
Turbidity Meter
Turbidity Meter (2100Q Portable)
Vehicle (Construction Mana ement)
Water Flow Probe Meter
$23 / day
$220 / day
$22 / day
- - --, $30 I day
$35 / day
----------------- $ 10 / hour
$20 / day
Water Quality Meter
Water Quality Multimeter
---~~------~-. Well Sounder
$50 Ida
$185 / day
$30 /_d_a,,_ _.
' This schedule is updated annually Page 2 of 2

~ , , W EST YOST
• W ater. Engineered.
2025 Billing Rate Schedule
(Effective January 1, 2025, through December 31, 2025}*

POSITIONS LABOR CHARGES (DOLLARS PER HOUR)
Principal/ Vice President $373
Engineer/Scientist/Geologist Manager I/ II $352 / $369
Principal Engineer/Scientist/ Geologist I/ II $317 / $338 Senior Engineer/Scientist/Geologist I/ II $286 $300
Associate Engineer/ Scientist/Geologist I/ II $237 / $255 En ineer/Scientist/Geolo ist I/ II $185 / $215
Engineering Aide $111
Field Monitoring Services $138
Administrative I/ II/ Ill/ IV $102 / $127 / $152 / $168

ENGINEERING TECHNOLOGY
Engineering Tech Manager I/ II $366 I $369
Principal Tech Specialist I/ II $336 I $348
Senior Tech Specialist I/ II $308 I $321
Senior GIS Analyst $278
GIS Analyst $264
Technical Si:>ecialist I/ II/ Ill/ IV $196 I $224 / $251 / $280 Technical Analyst I/ II $141 / $168
Technical Analyst Intern $113
Cross-Connection Control Specialist I/ II/ Ill/ IV $147 / $159 / $179 / $198 CAD Manager $222
CAD Designer I/ II $172 / $194

CONSTRUCTION MANAGEMENT
Senior Construction Manager $355
Construction Manager I/ II/ Ill/ IV $211 / $226 / $239 / $303 Resident Inspector (Prevailing Wage Gro ups 4 / 3 / 2 / 1) $190 I $211 / $235 / $244 A i:>rentice lnsi:>ector
CM Administrative I/ II
$172
$91 / $124
Field Services $244
■ Hourly rates include charges for technology and communication, such as general and CAD computer software, telephone calls, routine in-house copies/prints, postage, miscellaneous supplies, and other incidental project expenses. ■ Outside services, such as vendor reproductions, prints, and shipping; major West Yost reproduction efforts; as well as engineering supplies, etc., will be billed at the actual cost plus 15%. ■ The Federal Mileage Rate will be used for mileage charges and will be based on the Federal Mileage Rate applicable to when the mileage costs were incurred. Travel other than mileage will be billed at cost. ■ Subconsultants will be billed at actual cost plus 10%. ■ Expert witness services, research, technical review, analysis, preparation, and meetings will be billed at 150% of standard hourly rates. Expert witness testimony and depositions will be billed at 200% of standard hourly rates. ■ A finance charge of 1.5% per month (an annual rate of 18%) on the unpaid balance will be added to invoice amounts if not paid within 45 days from the date of the invoice. * This schedule is updated annually Page 1 of 2

" ' ' W EST YOST • W ater. Eng ineered.
2025 Billing Rate Schedule
(Effective January 1, 2025, through December 31, 2025)* Equipment Charges

EQUIPMENT I

BILLING RATES
2" Purge Pump & Control Box $300 / day
Aqua ca le/ Pygmy or AA Flow Meter $28 / da
Emergency SCADA System $35 / day
Field Vehicles Groundwater $1.02 / mile
Gas Detector $80 / day
Generator $60 / day
Hydrant Pressure Gauge $10 / day
Hydrant Pressure Recorder, Impulse (Transient) $55 / da Hydrant Pressure Recorder, Standard $40 / day
Low Flow Pum Back Pack $135 / da-,,
Low Flow Pump Controller $200 / day ___________ , _ Powers Water Level Meter $32 / day Precision Water Level Meter 300ft $30 / day
Precision Water Level Meter 500ft $40 / day
------- Precision Water Level Meter 700ft $45 / day
QED Sample Pro Bladder Pum $65 / day
Skydio 2+ Drone (2 hour mimimum) $100 / hour
Storage Tank - ~ - - - - - - ~ - ~ - - - - - -- - - - - - - - - - - - - - - - - $20 da-,, Sump Pump $24 / day
Transducer Communications Cable $10 / day
Transducer Components (per installation) $23 / day
Trimble GPS - Geo 7x $220 / day
Tube Length Counter $22 / day
Turbidit Meter $30 / da
Turbidity Meter (2100Q Portable) $35 / day
Vehicle Construction Management)
Water Flow Probe Meter
Water Quality Meter
Water Quality Multimeter $185 / day
-- - - - - - - - - - - - - - -.-- - - - - - - - - - - - - - - - - - - - - Well Sounder - - - - - - - - - ~ - - - - - •- - - - - - - - - - - - - - - - - $30 /da ~ This schedule is updated annually Page 2 of 2

EXHIBIT "C"

GENERAL PROVISIONS
1) INDEPENDENT CONSULTANT. At all times during the term of this Agreement, CONSULTANT shall be an independent contractor and shall not be an employee of CITY. CITY shall have the right to control CONSULTANT only insofar as the results of CONSULTANT's services rendered pursuant to this Agreement; however, CITY shall not have the right to control the means by which CONSULTANT accomplishes services rendered pursuant to this Agreement. 2) LICENSES; PERMITS; ETC. CONSULTANT represents and warrants to CITY that CONSULTANT has all licenses, permits, qualifications, and approvals of whatsoever nature which are legally required for CONSUL TANT to practice CONSUL TANT's profession. CONSULTANT represents and warrants to CITY that CONSULTANT shall, at its sole cost and expense, keep in effect at all times during the term of this Agreement, any licenses, permits, and approvals which are legally required for CONSULTANT to practice his profession.
3) TIME. CONSULTANT shall devote such services pursuant to this Agreement as may be reasonably necessary for satisfactory performance of CONSULTANT's obligations pursuant to this Agreement. CONSULTANT shall adhere to the Schedule of Activities as described in their Executive Summary.
4) CONSULTANT NOT AN AGENT. Except as CITY may specify in writing, CONSULTANT shall have no authority, express or implied, to act on behalf of CITY in any capacity whatsoever as an agent.

CONSULTANT shall have no authority, express or implied, pursuant to this Agreement, to bind CITY to any obligation whatsoever.
5) ASSIGNMENT PROHIBITED. No party to this Agreement may assign any right or obligation pursuant to this Agreement. Any attempted or purported assignment of any right or obligation pursuant to this Agreement shall be void and of no effect.
6) PERSONNEL. CONSULTANT shall assign only competent personnel to perform services pursuant to this Agreement. In the event that CITY, in its sole discretion, at any time during the term of this Agreement, desires the removal of any person or persons assigned by CONSULTANT to perform services pursuant to this Agreement, CONSULTANT shall remove any such person immediately upon receiving notice from CITY of the desire of CITY for the removal of such person or persons. 7) STANDARD OF PERFORMANCE. CONSULTANT shall perform all services required pursuant to this Agreement. Services shall be performed in the manner and according to the standards observed by a competent practitioner of the profession in which CONSULTANT is engaged in the geographical area in which CONSULTANT practices his profession. All products which CONSULTANT delivers to CITY pursuant to this Agreement shall be prepared in a workmanlike manner, and conform to the standards of quality normally observed by a person practicing in CONSULTANT's profession. CITY shall be the sole judge as to whether the product of the CONSULTANT is satisfactory.
8) CANCELLATION OF AGREEMENT. This Agreement may be canceled at any time by the CITY at its discretion upon written notification to CONSULTANT. CONSULTANT is entitled to receive full payment for all services performed and all costs incurred up to and including the date of receipt of written notice 5 Revised 6/28/2024

to cease work on the project. CONSULTANT shall be entitled to no further compensation for work performed after the date of receipt of written notice to cease work. All completed and incomplete products up to the date of receipt of written notice to cease work shall become the property of CITY. 9) PRODUCTS OF CONSULTING. All products of the CONSULTANT provided under this Agreement shall be the property of the CITY.
10) INDEMNIFY AND HOLD HARMLESS.
a) If AGREEMENT is an agreement for design professional services subject to California Civil Code § 2782.8(a) and CONSULTANT is a design professional, as defined in California Civil Code § 2782.8(c)(2), to the fullest extent permitted by law, CONSULTANT shall indemnify, defend and hold harmless CITY and its elected officials, officers, agents, employees and designated volunteers (collectively "CITY lndemnitees") from and against any and all claims, losses, liabilities, damages, costs and expenses, including attorney's fees and costs, to the extent they arise out of, pertain to, or relate to the negligence, recklessness, or willful misconduct of the CONSULTANT. CONSULTANT's duty to defend shall consist of reimbursement of defense costs incurred by CITY in direct proportion to the CONSULTANT's proportionate percentage of fault. CONSULTANT's percentage of fault shall be determined, as applicable, by a court of law, jury or arbitrator. In the event any loss, liability or damage is incurred by way of settlement or resolution without a court, jury or arbitrator having made a determination of the CONSULTANT's percentage of fault, the parties agree to mediation with a third party neutral to determine the CONSULTANT's proportionate percentage of fault for purposes of determining the amount of indemnity and defense cost reimbursement owed to the CITY.
b) If AGREEMENT is not an agreement for design professional services subject to California Civil Code § 2782.8(a) or CONSULTANT is not a design professional as defined in California Civil Code § 2782.8(c)(2), to the fullest extent allowed by law, CONSULTANT shall indemnify, defend, and hold harmless the CITY lndemnitees from all claims, suits, or actions of every name, kind and description, brought forth on account of injuries to or death of any person or damage to property arising from or connected with the willful misconduct, negligent acts, errors or omissions, ultra-hazardous activities, activities giving rise to strict liability, or defects in design by CONSULTANT or any person directly or indirectly employed by or acting as agent for CONSULTANT in the performance of this Agreement, including the concurrent or successive passive negligence of the CITY lndemnitees.

It is understood that the duty of CONSULTANT to indemnify and hold harmless includes the duty to defend as set forth in Section 2778 of the California Civil Code.

Acceptance of insurance certificates and endorsements required under this Agreement does not relieve CONSULTANT from liability under this indemnification and hold harmless clause. This indemnification and hold harmless clause shall apply whether or not such insurance policies are determined to be applicable to any such damages or claims for damages.

CONSULTANT'S responsibility for such defense and indemnity shall survive termination or completion of this agreement for the full period of time allowed by law. 11) PROHIBITED INTERESTS. No employee of the CITY shall have any direct financial interest in this agreement. This agreement shall be voidable at the option of the CITY if this provision is violated. 6 Revised 6/28/2024

12) LOCAL EMPLOYMENT POLICY. The CITY desires wherever possible, to hire qualified local residents to work on city projects. Local resident is defined as a person who resides in Solano County.

The CITY encourages an active affirmative action program on the part of its contractors, consultants, and developers. When local projects require, subcontractors, contractors, consultants and developers will solicit proposals from qualified local firms where possible.

As a way of responding to the provisions of the Davis-Bacon Act and this program, contractor, consultants, and developers will be asked, to provide no more frequently than monthly, a report which lists the employee's name, job class, hours worked, salary paid, city of residence, and ethnic origin. 13) CONSULTANT NOT A PUBLIC OFFICIAL. CONSULTANT is not a "public official" for purposes of Government Code§§ 87200 et seq. CONSULTANT conducts research and arrives at his or her conclusions, advice, recommendation, or counsel independent of the control and direction of the CITY or any CITY official, other than normal contract monitoring. In addition, CONSULTANT possesses no authority with respect to any CITY decision beyond these conclusions, advice, recommendation, or counsel. 14) EMPLOYMENT DEVELOPMENT DEPARTMENT REPORTING REQUIREMENTS. When the CITY executes an agreement for or makes payment to CONSULTANT in the amount of $600 (six hundred dollars) or more in any one calendar year, CONSULTANT shall provide the following information to CITY to comply with Employment Development Department (EDD) reporting requirements:
a) Whether CONSULTANT is doing business as a sole proprietorship, partnership, limited liability partnership, corporation, limited liability corporation, non-profit corporation or other form of organization.
b) If CONSULTANT is doing business as a sole proprietorship, CONSULTANT shall provide the full name, address and social security number of the sole proprietor. c) If CONSULTANT is doing business as other than a sole proprietorship, CONSULTANT shall provide CONSULTANT'S federal tax identification number. 7 Revised 6/28/2024

EXHIBIT "D"

INSURANCE REQUIREMENTS
CONSULTANT shall procure and maintain for the duration of the contract insurance against claims for injuries to persons or damages to property which may arise from or in connection with the performance of the work hereunder by the CONSULTANT, its agents, representatives, or employees. 1) MINIMUM SCOPE AND LIMITS OF INSURANCE
a) Commercial General Liability coverage (occurrence Form CG 00 01) with minimum limits of $1,000,000 per occurrence for bodily injury, personal injury, products and completed operations, and property damage. If Commercial General Liability or other form with a general aggregate limit is used, either the general aggregate Jim it shall apply separately to this project/location or the general aggregate limit shall be twice the required occurrence limit.
b) Automobile Liability coverage (Form CA 00 01 with Code 1 - any auto) with minimum limits of $1,000,000 per accident for bodily injury and property damage. c) Workers' Compensation insurance as required by the State of California and Employers' Liability insurance, each in the amount of $1,000,000 per accident for bodily injury or disease. 2) INDUSTRY SPECIFIC COVERAGES
If checked below, the following insurance is also required. 0 Professional Liability Insurance/ Errors and Omissions Liability in the minimum amount of $1,000,000 per occurrence.

D Pollution Liability Insurance in the minimum amount of $1,000,000 per occurrence D Garage Keepers Insurance in the minimum amount of $1,000,000 per occurrence D Fidelity/ Crime/ Dishonesty Bond in the minimum amount of $ _ D MCS-90 Endorsement to Business Automobile insurance for transportation of hazardous materials and pollutants
D Builder's Risk/ Course of Construction Insurance in the minimum amount of $ _ 3) INSURANCE PROVISIONS
a) DEDUCTIBLES AND SELF-INSURED RETENTIONS. Any deductibles or self-insured retentions must be declared to and approved by the CITY. At the option of the CITY, either the insurer shall reduce or eliminate such deductibles or self-insured retentions as respects the CITY, its officers, officials, employees and volunteers; or the CONSULTANT shall procure a bond guaranteeing payment of losses and related investigations, claim administration and defense expenses. b) The general and automobile liability policies (and if applicable, pollution liability, garage keepers 8 Revised 6/28/2024

liability and builder's risk policies) are to contain, or be endorsed to contain, the following provisions:
i) The CITY, its officers, officials, employees and volunteers are to be covered as insureds as respects: liability arising out of work or operations performed by or on behalf of the CONSULTANT; products and completed operations of the CONSULTANT; premises owned, occupied or used by the CONSULTANT; and automobiles owned, leased, hired or borrowed by the CONSULTANT. The coverage shall contain no special limitations on the scope of protection afforded to the CITY, its officers, officials, employees or volunteers. ii) For any claims related to this project, the CONSULTANT'S insurance coverage shall be primary insurance as respects the CITY, its officers, officials, employees and volunteers. Any insurance or self-insured maintained by the CITY, its officers, officials, employees or volunteers shall be in excess of the CONSULTANT'S insurance and shall not contribute with it. iii) Any failure to comply with reporting or other provisions of the policies including breaches of warranties shall not affect coverage provided to the CITY, its officers, officials, employees or volunteers.
iv) The CONSULTANT'S insurance shall apply separately to each insured against whom claim is made or suit is brought, except with respect to the limits of the insurer's liability. v) Each insurance policy required by this clause shall be endorsed to state that coverage shall not be suspended, voided, canceled by either party, reduced in coverage or in limits except after thirty (30) days' prior written notice by certified mail, return receipt requested, has been given to the CITY.
vi) The policy limits of coverage shall be made available to the full limits of the policy. The minimum limits stated above shall not serve to reduce the CONSULTANT'S policy limits of coverage.

Therefore, the requirements for coverage and limits shall be (1) the minimum coverage and limits specified in this agreement, or (2) the broader coverage and maximum limits of coverage of any insurance policy or proceeds available to the named insured, whichever is greater. c) ACCEPTABILITY OF INSURER. Insurance is to be placed with insurers with a current A.M. Best's rating of no less than A:VII, unless otherwise acceptable to the CITY.

VERIFICATION OF COVERAGE. CONSULTANT shall furnish the CITY with original endorsements effecting coverage required by this Exhibit D. The endorsements are to be signed by a person authorized by that insurer to bind coverage on its behalf; on forms equivalent to CG 20 10 11 85, subject to CITY approval; and submitted electronically through the Exigis insurance system to: [email protected].

All insurance certificates and endorsements are to be received and approved by the CITY before work commences. At the request of the CITY, CONSULTANT shall provide complete, certified copies of all required insurance policies, including endorsements affecting the coverage required by these specifications. d) SUB-CONTRACTORS. CONSULTANT shall require all subcontractors to procure and maintain insurance policies subject to the requirements of Exhibit D. Failure of CONSULTANT to verify existence of sub­ contractor's insurance shall not relieve CONSULTANT from any claim arising from sub-contractors work on behalf of CONSULTANT.
9 Revised 6/28/2024

12/18/24, 8:30 AM Business Search
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Account # Business Name
24000548 West Yost &. Associates, Inc.

Start Date
5/ 1/ 2024
Expire Date Address Phone Website
17 l ,·:c 2020 RESEARCH PARK DR !/ 100, (530) 756-5905
DAVIS, CA 95618-6148
Total records found: ·1
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CIT Y OF

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City of Fairfield, CA
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West Yost & Associates Inc.

Account: 32435
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Organizational Unit
El City of Fairfield, CA
Public Works
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ID Number End Date
Compliance Effective Expiration Started T St Status ype Date Date age 1 0 191553 PO#20511
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!Compliant 18/27 /20241 Consultant I 9; 1;2024 9/ 1/2025 / Services I j
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