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  5. ›CALAVERAS COUNTY WATER DISTRICT COPPER COVE WATER…

Calaveras County Water District·California

CALAVERAS COUNTY WATER DISTRICT COPPER COVE WATER TREATMENT PLANT FILTER REHABILITATION PROJECT CIP #11136

Closes 11/24/2025$600k – $900kInvitation for BidLogin required
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Description

The Calaveras County Water District is seeking bids from qualified contractors to rehabilitate the filters and associated appurtenances at the Copper Cove Water Treatment Plant. The project includes removing and replacing adsorption clarifier beads, mixed media, and support gravel, as well as disassembling and rehabilitating associated appurtenances. The contractor must have completed at least five filter rehabilitations in the past five years and provide proof of these projects. The contract will be subject to prevailing wage, insurance, and other public contracting requirements. • The project involves rehabilitation of two filters with a maximum capacity of 1400 gallons per minute. • The contractor must hold a Class A General Engineering Contractor's license issued by the State of California. • The project is subject to final District inspection, coating inspection, and must comply with labor requirements and applicable permits. • A non-mandatory pre-bid walk will be held on November 14, 2025, at 9:00am.

Attached files

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

Contact

Haley Airola

[email protected]

(209) 754-3181

Key dates

Opened
11/4/2025
Pre-bid meeting
11/14/2025
Closes
11/24/2025

Last updated

Details

Type
Invitation for Bid
Industry
Water Management and Sanitation
NAICS
237110
Solicitation №
11136

Budget estimate

$600,000 – $900,000

The estimated budget for this project is around $727,000, as stated in the document. This amount seems reasonable considering the scope of the project, which involves rehabilitation of two filters and associated appurtenances. The actual budget may vary depending on the bids received and the final contract awarded. Factors that may influence the likely payment range include the complexity of the project, the experience and qualifications of the contractor, and the prevailing wage and labor requirements. Given the estimated engineer's cost and the typical profit margins for contractors, a reasonable budget range could be between $600,000 and $900,000.

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