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Procurement

Tri Delta Transit is always interested in forging new partnerships with businesses to help provide better public transportation services to the residents of Eastern Contra Costa County.

The following is a partial list of commodities purchased by Tri Delta Transit through informal purchase:

  • Shop supplies (nuts, bolts, wire,wire connectors, tape, batteries, light bulbs, zip ties)
  • Personal protection gear (gloves, dust masks, safety glasses, safety vests, ear plugs)
  • Bus stop repair supplies (poles, brackets, signs, concrete, plexiglass, trash cans)
  • Bus parts (brake parts, coolant, oil, parts cleaner)
  • Janitorial supplies (toilet paper, paper towels, hand soap, garbage bags, air fresheners)
  • Detail supplies (soap for bus wash, vandalism remover, glass cleaner, brooms, brushes, mops)
  • Bus fuel (diesel, unleaded, renewable diesel)
  • Office supplies (pens, printer paper, etc)
  • Food catering
  • Gifts/promotional items

The following is a partial list of typical recurring formal bids:

  • Uniforms
  • Advertising
  • Schedule printing
  • HVAC maintenance
  • Shop equipment maintenance
  • Operations
  • Financial auditor

ECCTA allows for bid/proposal submission through BidExpress. Vendors must register with BidExpress before participating at www.bidexpress.com. Registration for ECCTA solicitations is free.

We also encourage businesses to sign up for our free Email/Text Alerts to receive notification of upcoming Invitation for Bids and Request for Proposals.

Vendor Form

Email/Text Alert Sign-Up

How to submit a bid/proposal

Each formal solicitation package includes the due date, time, and any additional information for your submittal, including the date and time bids will be publicly opened, if applicable. Formal bids are generally opened publicly at Tri Delta Transit’s administrative office, 801 Wilbur Avenue, Antioch, CA 94509. Staff announces the names of firms and the submitted bids.

If no bids/proposals are listed, then there are none open at this time.

Current open bid/proposals

RFP for State Advocacy Service #2025-02

Deadline: March 20, 2025 untill 2:00 pm

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Eastern Contra Costa Transit Authority (dba:Tri Delta Transit) invites you to submit a proposal to provide state advocacy support services in regulatory, legislative, operations, and funding issues of interest to Tri Delta Transit as further detailed in the Scope of Services, Appendix A, to this RFP ("Services"). Proposers may submit a proposal to provide state advocacy support services, in accordance with the Cost Proposal Form (Form 5). Costs must include, but not be limited to, all labor, shipping, postage, materials, supplies, taxes, overhead, insurance, and profit and all other costs necessary to perform the work. A Proposer’s failure to submit a Cost Proposal may result in rejection of the proposal as non-responsive.

Tri Delta Transit anticipates awarding a contract for a one-year term, with two (2) one-year extensions, to the highest-ranked Proposer or Proposers. The successful Proposer
or Proposers will execute an Agreement for Services for a not-to-exceed (NTE) compensation amount.

Tri Delta Transit intends to adhere to the following solicitation timeline, which is subject to change at its discretion:

Important Dates:

  • RFP Issued February 20, 2025
  • Questions, and Requests for Clarification/
    (RFCs) Due March 6, 2025 prior to 2:00 p.m.
  • Proposals Due March 20, 2025 prior to 2:00 p.m.
  • Interviews (if required) Week of March 31
  • Contract Award (tentative) April 23, 2025

All Questions and/or RFCs must be submitted in writing by email to Joe Chappelle at procurement@eccta.org.

download this documentLobbyist_RFP_2025-02

BID Due Date: March 20, 2025 2:00 pm

Request for Qualifications: Hydrogen Fuel Station Consultant RFQ #2025-01

Deadline: March 07, 2025 untill 12:00 am

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Eastern Contra Costa Transit Authority (ECCTA), a Joint Powers Agency (JPA) located in eastern Contra
Costa County, California, is requesting statements of qualifications (SOQs) from firms interested in
providing design-build services to assist ECCTA with the design and installation of a hydrogen fueling
station for use by buses powered with hydrogen fuel-cells, to be located at ECCTA’s facility in the City
of Antioch, California.


The SOQs will be used to create a short list of prequalified firms who will then be invited to participate in a Request for Proposal (RFP) solicitation for the award of the final design-build contract. In accordance with California Public Contract Code section 22164 et. seq.,only those firms who have been prequalified as a result of this RFQ will be allowed to participate in the subsequent RFP.

Statements of qualifications will be received by Eastern Contra Costa Transit Authority (ECCTA) until
12:00 p.m. local time, on Friday, March 7, 2025. Statements may be submitted either via Bid Express or
via mail to ECCTA’s facility located at 801 Wilbur Avenue, Antioch, CA 94509. Statements received
after the said time or at any other place other than the time and place stated in this RFQ will not be
considered. Statements must be received on the enclosed ECCTA form with the required certification
forms listed in the RFQ documents. Statements submitted on any other forms will be considered non-responsive and will be rejected.

A complete RFQ package can be downloaded by clicking the button.

Copies of the RFQ documents may also be obtained by visiting the following link:
https://www.bidexpress.com/businesses/72695/home. New users to the Bid Express portal will be
required to complete a free registration before receiving access to the RFQ documents

download this documentRFQ_2025-01 Request for Qualifications download this documentAddendum1_2025-01 Hydrogen Fuel

BID Due Date: March 7, 2025 12:00 am