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West County Wastewater·California

Secondary Sedimentation Basins Upgrades Project - Short-term Improvements for Basins (1) & (2)

Closes 12/16/2026$5M – $6.5MInvitation for Bid
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Description

West County Wastewater District (WCW) is seeking qualified contractors to perform short‑term rehabilitation and upgrade work on Secondary Sedimentation Basins 1 and 2 at its Water Quality & Resource Recovery Plant in Richmond, CA. The contractor will install owner‑furnished collector chains and flights, replace water‑system piping, replace precast walkways and sluice gates, perform concrete surface repair, upgrade electrical components, and conduct demolition, site restoration, cleaning, commissioning, and training. The project is limited to the two basins, must be performed while the plant remains operational, and is estimated at $5.6 million. Bids are due electronically by 3 pm on December 16, 2026.

Attached files

The solicitation documents live at the source — open the bid source above to download them.

Contact

Mohammed Masoud(Project Manager)

[email protected]

(510) 407-9563

Key dates

Opened
10/27/2026
Questions due
11/26/2026
Pre-bid meeting
11/10/2026Mandatory
Site visit
9/12/2026Mandatory
Closes
12/16/2026
Projected award
12/21/2026

Last updated

Details

Type
Invitation for Bid
Industry
Construction
NAICS
237110
Solicitation №
26-IFB-040

Budget estimate

$5,000,000 – $6,500,000

The engineering estimate for the entire scope is $5,625,000. Assuming the contractor’s fee and profit are embedded in the bid amount, the expected revenue to the winning contractor will be roughly the same figure. Typical profit margins for public‑sector construction projects range from 5 % to 10 %, so the net earnings could be between $280,000 and $560,000, but the total contract budget to the contractor is anticipated to be in the $5.5 M‑$6.5 M range, depending on final bid adjustments, change orders, and any additional work added during construction.

AI estimate from the solicitation

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