2708 ITB Solids Dewatering Services

Agency:	Contra Costa Water District
State:	California
Type of Government:	State & Local
NAICS Category:	562111 - Solid Waste Collection
Posted Date:	Mar 19, 2026
Due Date:	Apr 17, 2026
Solicitation No:	2708
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CONTRA COSTA WATER DISTRICT

INVITATION TO BID

ITB # 2708 Solids Dewatering Services

Issued: March 18, 2026

Submittal Deadline: 4:00 p.m. (PST), Friday April 17, 2026

Contra Costa Water District

1331 Concord Avenue, Concord, California

Attn: Judy Phan, Purchasing Officer

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

listed herein. Any addenda to this Invitation To Bid (ITB) will be directed to all participating bidders. It is the bidders’

responsibility for any addendums, notices, or changes to the ITB or ITB process.

About CCWD

Contra Costa Water District (CCWD) was formed in 1936 to provide water for irrigation and industry

and now serves approximately 550,000 people in central and eastern CCWD 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 a vital service for keeping the water flowing to our community.

Website: http://www.ccwater.com

II. Notice of Inviting Bidders

A. Submittal of Bids

An electronic bid (in searchable PDF format) Attachment B - Pricing shall be submitted via the

relevant procurement page at CCWD’s PlanetBids Portal below. No hard copy, email, or faxed

bids will be accepted. No bids will be accepted after the due date and time and will be deemed

unresponsive.

https://vendors.planetbids.com/portal/52380/bo/bo-detail/139562

B. Pre-Bid Meeting-Optional

At this time, CCWD will not be conducting a voluntary or mandatory pre-bid meeting.

C. Conditions of Invitation to Bid

Terms of Agreement

This service is for a two (2) year base period Fiscal Year 2027 (FY27) July 1, 2026, through June 30, 2027,

and (FY28) July 1, 2027, through June 30, 2028; with one (1) year priced option for (FY29) July 1, 2028,

through June 30, 2029.

Liability of Cost and Responsibility

CCWD is not responsible for any costs incurred in preparing a response to this ITB. All expenses associated

with responding shall be borne solely by submitting individual or organization. Respondents shall hold

CCWD harmless from any liability, claims, or expenses arising from or related to their participation in this

process. All materials submitted become the property of CCWD.

Insurance

CCWD has implemented an insurance compliance program requiring all vendors to provide products or

services to maintain appropriate insurance coverage before any agreement is issued. Once the most

responsive bidder is identified that vendor will have 15 days from selection to submit all required

insurance documents, following the provided samples, and to register with CCWD’s insurance

compliance tracking system, MyCOI. Failure to provide the required insurance documentation within this

timeframe may result in the bid being deemed unresponsive.

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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 bidder shall pay not less

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

of Industrial Relations. Bidders can download the current prevailing rate of per diem wages directly

from the California Department of Industrial Relations.

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

Equal Employment Opportunity

Contra Costa Water District is committed to equal employment opportunity for all employees and

applicants. We prohibit discrimination based upon race, color, religion, marital status, age, national

origin, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual

orientation, gender identity or expression, veteran status, or any other actual or perceived status

protected under federal, state, or local law. Employment decisions are based on individual qualifications

and performance.

Bid Notices

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

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

The information will be the basis for evaluation of costs between respondents and will be the basis for

actual charges for services performed under the terms of this agreement. Submission of a bid constitutes

acceptance of CCWD’s Purchase Order Terms and Conditions/Sample Agreement (Attachment F). Failure

to indicate herewith any exceptions to the Purchase Order Terms and Conditions/Sample Agreement

shall forever waive any such exceptions, see the Bid Guarantee (Attachment E).

Accessibility Compliance

Unless otherwise specified herein, bidders shall be required to provide all electronic deliverables or

digital content described in this ITB, including documents, websites, or web services to be provided, in a

form which meets Americans with Disabilities Act (ADA) requirements. Specifically, electronic

deliverables or digital content shall adhere to and be compliant with Web Content Accessibility

Guidelines (WCAG) 2.1, Level AA. See https://www.ada.gov/resources/2024-03-08-web-rule/

and https://www.w3.org/WAI/standards-guidelines/wcag/ for more information on these standards.

Compliance is a material requirement of this ITB. Any bid which includes a disclaimer of warranty or

compliance with these standards shall be deemed nonresponsive and will not be considered for award.

Addenda

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

Contra Costa Water District and posted to PlanetBids. CCWD will not be responsible for failure of any

prospective bidder to receive such Addenda. All Addenda so issued shall become part of this ITB.

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Questions concerning Solids Dewatering Services should be directed on CCWD’s PlanetBids website in Q

& A section and must be received by 4:00 p.m. (PST) Monday, March 31, 2026. Responses to all questions

received by the due date will be published on PlanetBids and CCWD will issue an Addendum to the ITB

on Tuesday, April 7, 2026.

Best Value Award

CCWD specifically reserves the right to reject any or all bids, 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 bids. CCWD

does not obligate itself to accept the lowest bid and specifically reserves the right to reject any or all bids

or CCWD will accept any bids or combination of bids 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.

Creative and effective problem-solving thrives in a workforce where different experiences and

perspectives influence employees’ work. Employees thrive when employers recognize the value of those

differences and integrate them into the workplace. CCWD is committed to harnessing the power of its

workforce to solve industry challenges and meet the needs of the communities it serves, now and in the

future. To that end, CCWD is committed to the equitable extension of opportunity to join and

meaningfully contributes to the CCWD team. We seek consultants and contractors who join us in these

commitments in their own operations and activities.

WHAT:

One electronic copy of the bid submitted to CCWD’s PlanetBids Portal prepared in

accordance with the instructions in this Invitation to Bid.

WHEN:

4:00 p.m., (PST), Friday, April 17, 2026

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

Attachment A -

Attachment B -

Attachment C -

Attachment D -

Attachment E -

Attachment F -

Attachment G -

Attachment H -

Scope of Work

Pricing

Bid/Proposal General Provisions

Bid Guarantee

P.O. Terms & Conditions/ Sample Agreement

Contractual Insurance Requirements

Contractor / Consultant Safe Practices Handbook

Contractor Safety Orientation

Sincerely,

Judy Phan

Purchasing Officer

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Attachment A

SCOPE OF WORK

The work to be performed under this contract consists of providing complete services for dewatering,

hauling, and disposing of water treatment solids generated at the Bollman Water Treatment Plant WTP.

There will be two dewatering sites, one located at Bollman WTP, 2015 Bates Ave., Concord, CA, and the

other within the Central Contra Costa Sanitary District (CCCSD) Wastewater Treatment Plant, 5019

Imhoff Place, Martinez, CA.

The dried solids will be disposed of at the Republic Services – Keller Canyon Landfill in Pittsburg,

California, or alternative sites TBD. The address for Keller Canyon Landfill is 901 Bailey Road, Pittsburg,

CA 94565.

On an “as-needed” basis, CCWD is seeking mechanical dewatering for on-site solids at the Bollman

WTP, 2015 Bates Avenue, Concord, CA, and Randall-Bold WTP, Oakley, CA sites to include solar drying

and solids turning & hauling based on the CCWD’s need.

Contractor shall take complete responsibility for the water treatment solids from discharge into the

basins through disposal in full and complete compliance with the obligations of CCWD under the Lease

between CCCSD and Contra Costa Water District for Drying Basins (“Lease.”) A copy of the lease is

provided as Attachment J.

Work will include at a minimum:

* Operate the CCCSD solar drying basins according to the Operations Plan developed by CCWD

(Attachment G). Average monthly solids production has been 525,000 gallons per month. Basin

II must be completely clean at the end of the dry season (October 31) and at the end of the

Contract Term (June 30). It is anticipated that the Contractor will not be on-site during the wet

weather months (November – March). Dry weather months are included in the Scope as an

example. The period of work will be designated by CCWD based on weather conditions. CCWD

will provide 14-day notice for commencement of operations and cessation of operations.

Mechanical aeration/stirring of the water treatment residuals during the drying cycle is required

for successful operation.

* On an “as needed basis,” furnish and operate decant pump assembly to withdraw clear decant

water near the water surface. Any decant water transfer between basins or decant discharge to

CCCSD must be attended to and monitored to prevent solids discharge into CCCSD’s sewer

system. The contractor shall be subject to the CCCSD pretreatment requirements and agrees to

take all reasonable measures to comply with CCCSD enforcement orders. The Contractor shall

not discharge into the CCCSD wastewater collection and treatment system any substance

categorized as hazardous. The CONTRACTOR shall furnish all necessary pumps, filters, floats,

hoses, equipment fittings, power, and power connections.

* Dried solids shall be loaded, hauled, and disposed of at the Republic Services – Keller Canyon

Landfill in Pittsburg, California, or alternative sites TBD. CCWD will pay all disposal (tips) and

administrative fees directly to the Republic Services – Keller Canyon Landfill in Pittsburg,

California, or alternative sites. The contractor shall coordinate the timing of loading and

hauling operations with Central Contra Costa Sanitary District (CCCSD). The contractor shall

FY27 ITB# 2708

Solids Dewatering Services

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This page summarizes the opportunity, including an overview and a preview of the attached documents.

2708 ITB Solids Dewatering Services

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See Also

Bid Number:	2708
Bid Title:	2708 ITB Solids Dewatering Services
Category:	Invitation to Bid
Status:	Open