2634 RFP Randall Bold Water Treatment Plant DCS PLC Upgrade

Location:	California
Posted:	Nov 20, 2025
Due:	Jan 27, 2026
Agency:	Contra Costa Water District
Type of Government:	State & Local
Category:	68 - Chemicals and Chemical Products
Solicitation No:	2634
Publication URL:	To access bid details, please log in.

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CONTRA COSTA WATER DISTRICT

REQUEST FOR PROPOSALS

Issued: Thursday, November 20, 2025

Submittal Deadline: Tuesday, January 27, 2026 @ 4:00 pm. (PST)

Contra Costa Water District

1331 Concord Avenue, Concord, California

Attn: Judy Phan, Purchasing Officer

*It is the Proposer’s responsibility to read the entire document, any addendums and to comply with all

requirements listed herein. Any addenda to this Request for Proposal (RFP) will be directed to all participating

proposers. It is the proposers’ responsibility for any addendums, notices, or changes to the RFP or RFP process.

About CCWD

Contra Costa Water District was formed in 1936 to provide water for irrigation and industry, and

now serves approximately 520,000 people in central and eastern Contra Costa County. Contra Costa

Water District is a local service agency known as a special district. Being a special district allows us

to have a single well-defined focus to meet a specific need. We provide the vital service of keeping

the water flowing to our community.

Website: http://www.ccwater.com

II. Notice of Inviting Proposals

A. Submittal of Proposals

An electronic proposal (in searchable PDF format) and Attachment B- Estimate of Costs shall

be submitted as separate files via the relevant procurement page at CCWD’s PlanetBids portal:

https://vendors.planetbids.com/portal/52380/bo/bo-detail/135969

B. Pre Proposal Meeting-Optional

The Pre-Proposal Meeting will be held Thursday, December 11, 2025, 9:00 AM at Randall Bold

Water Treatment Plant.

Please meet Purchasing Officer at Front office of 3760 Neroly Rd, Oakley, CA 94561.

C. Conditions of Request for Proposals

Terms of Agreement

This service is for a two (2) year base period Fiscal Year 2026 (FY26) July 1, 2025, through June 30, 2026,

and (FY27) July 1, 2026, through June 30, 2027

Liability of Cost and Responsibility

CCWD shall not be liable for any costs incurred in response to this RFPs. All costs shall be borne by the

person or organization responding to the request. The person or organization responding to the

request shall hold CCWD harmless from any and all liability, claim or expense whatsoever incurred by

or on behalf of that person or organization. All submitted material becomes the property of Contra

Costa Water District.

Insurance

CCWD has initiated an insurance compliance program. This program requires all companies providing

products and services to CCWD to have insurance coverage prior to the issuance of any contract. Once

the most responsive proposer has been established, that vendor will have until 15 days after selection

to provide all required insurance documents per the samples provided and register with CCWD’s

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insurance compliance tracking system, MyCOI. Failure to provide this insurance documentation will

result in CCWD considering this proposal or response to be unresponsive.

Business License

Business licenses will be verified with the issuing agencies and references will be checked.

Prevailing Wage

Pursuant to Section 1770, et seq., of the California Labor Code, the successful proposer shall pay not

less than the prevailing rate of per diem wages as determined by the Director of the California

Department of Industrial Relations. Copies of such prevailing rate of per diem wages are on file at the

office of the Purchasing Officer, where copies will be made available during normal working hours to

any interested party upon request, or Proposers may prefer to obtain the current prevailing rate of per

diem wages directly from the website maintained by the California Department of Industrial Relations

(http://www.dir.ca.gov/dlsr/pwd/index.htm ).

Equal Employment Opportunity

Per District Administrative Procedure XII-4 entitled Equal Employment Opportunity; Prohibition of

Discrimination, Harassment, Retaliation, and Abusive Conduct, CCWD is an equal employment

opportunity employer. As such, CCWD employs, recruits, retains, promotes, evaluates, terminates, and

otherwise treats all employees, contractors, and job applicants on the basis of merit, qualification, and

competence, and without regard to any Protected Category under the Equal Employment Opportunity

Commission or the State of California Department of Fair Employment and Housing. CCWD does not

tolerate discrimination, harassment, retaliation, or abusive conduct by or against employment

applicants, employees, those not employed by, but working on behalf of CCWD, and/or members of the

public. Immediate and appropriate corrective action will be implemented as warranted for all such

misconduct. Administrative Procedure XII-4 is applicable to all employees and agents of CCWD with

whom an individual comes into contact in the workplace or a work-related situation. CCWD’s policy can

be found at the following web address: https://www.ccwater.com/DocumentCenter/View/973/XII-4-

Equal-Employment-Opportunity-PDF.

RFP Notices

CCWD has included the Bid/Proposal General Provisions (Attachment C) to help explain CCWD’s bid and

proposal process.

The attached proposal requirements must be completed and provided by the respondent. The

information will be the basis for evaluation of cost between respondents and will be the basis for actual

charges for services performed under the terms of this contract. Submission of a proposal constitutes

acceptance of CCWD’s Sample Agreement (Attachment E). Failure to indicate herewith any exceptions

to the Sample Agreement shall forever waive any such exceptions, see the Proposal Guarantee

(Attachment D).

Addenda

Any changes, additions, or deletions to this proposal will be in the form of written Addenda issued by

the Contra Costa Water District and posted to CCWD’s website . CCWD will not be responsible for failure

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of any prospective Vendor to receive such Addenda. All Addenda so issued shall become part of this

proposal.

Questions concerning Randall Bold Water Treatment Plant DCS PLC Upgrade should be directed to the

CCWD Purchasing Officer at ccwdpurchasingrequests@ccwater.com, referencing RFP#2634 and must

be received by 4:00 pm. (PST) on Thursday, December 18, 2025 . Responses to all questions received by

the due date will be published on CCWD website as an Addendum to the RFP on Tuesday, January 6,

2026.

Best Value Award

CCWD specifically reserves the right to reject any or all proposal, to make any awards or any rejections

in what it alone considers to be in the best interest of CCWD, and to waive any irregularities in the

proposals. CCWD does not obligate itself to accept the lowest proposal and specifically reserves the

right to reject any or all proposal or CCWD will accept any proposal or combination of proposals

considered most favorable. CCWD reserves the right to hire a primary and secondary contractor in the

event the primary contractor cannot respond in a timely manner.

WHAT:

One copy of the sealed Proposal and one electronic (flash drive) version,

prepared in accordance with the instructions in this Request for Proposal.

WHEN:

4:00 pm., (PST) Tuesday, January 27, 2026

WHERE:

Contra Costa Water District, 1331 Concord Ave., CA. 94520

ATTENTION: Judy Phan, Purchasing Officer

Proposal should be prepared considering the information in the following attachments:

Attachment A - Scope of Work and Technical Requirements

Attachment B - Contractors Rates & Charges

Attachment C - Evaluation Criteria

Attachment D - Bid/Proposal General Provisions

Attachment E - Proposal Guarantee

Attachment F - Sample Standard Services Agreement

Attachment G - Contractual Insurance Requirements

Attachment H - Contractor / Consultant Safe Practices Handbook

Attachment I - Contractor Safety Orientation

Sincerely,

Judy Phan

Purchasing Officer

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Attachment A

SCOPE OF WORK AND TECHNICAL REQUIREMENTS

Contra Costa Water District (CCWD) is seeking Proposals from firms interested in providing design,

procurement, programming, and construction services for the Randall-Bold Water Treatment Plant

DCS PLC Upgrade.

PROJECT BACKGROUND

The Randall-Bold Water Treatment Plant (see Image 1 below) is a critical facility located in Oakley,

California, jointly operated and maintained by the Contra Costa Water District (CCWD). The plant has

the capacity to treat up to 50 million gallons of water per day (MGD) and plays an essential role in

providing clean and safe drinking water to the surrounding communities.

The existing Programmable Logic Controller (PLC) and Remote I/O (RIO) infrastructure at the plant

has reached or is nearing the end of its useful life. To ensure continued reliability, maintainability, and

alignment with current industry standards, CCWD is seeking a qualified contractor to replace all

outdated PLCs, RIO components, and related control infrastructure with modern Modicon PLC

platforms and X80 Remote I/O components.

This modernization effort includes the upgrade or replacement of Local Operator Panels (LOPs) and

control panels located throughout the facility, as well as the replacement of terminal blocks, fuses,

relays, radios, power supplies, patch panels, and other obsolete components that may no longer

meet operational or safety standards. All work shall adhere to CCWD’s wiring, labeling, and tagging

standards to ensure consistency and maintainability across all facilities.

The current system primarily consists of legacy Modicon Quantum and Momentum PLCs, with

Wonderware software serving as the Human-Machine Interface (HMI) for process control. PLC

communication is established over a multimode fiber optic backbone in a ring configuration utilizing

Modbus TCP protocol.

The project may also include modifications to the Distributed Control System (DCS) HMI screens to

reflect systemic updates, as well as upgrades or replacements of fiber-to-Ethernet media converters,

network switches, and patch panels as needed to support the new hardware.

Under this Project, CCWD intends to implement the services under a design/build contract.

1.1 EXISTING PLC SYSTEM OVERVIEW

The Randall-Bold Water Treatment Plant currently utilizes multiple PLCs distributed throughout the

facility to control various treatment processes. The primary PLCs and their configurations are

summarized below.

FY26 – FY27 RFP#2634

Randall Bold Water Treatment Plant DCS PLC Upgrade

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This is the opportunity summary page. It provides an overview of this opportunity and a preview of the attached documentation.

Bid Number:	2634
Bid Title:	2634 RFP Randall Bold Water Treatment Plant DCS PLC Upgrade
Category:	Request For Proposals
Status:	Open

2634 RFP Randall Bold Water Treatment Plant DCS PLC Upgrade

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See also