Vineyard Surface Water Treatment Plant Filter Repair

Sacramento County Water Agency is requesting bids on repair and sand media replacement of Filter #7 at the Vineyard Surface Water Treatment Plant under Contract No. 41020, with bids due September 24, 2026 at 2:00 p.m. — note that the due date has passed as of today. Pre-bid questions were due September 16, 2026. A valid California Class A Contractor License is required; prevailing wage does not apply as the estimated construction cost of $100,000 is below the $15,000 threshold for repair work under California Labor Code Section 1771.5.

The scope comprises removal of approximately 1,024 cubic feet of existing spent sand and 2,048 cubic feet of anthracite filter media, inspection and repair of filter wall-floor joints (including repairs in the south cell), procurement and installation of new silica sand meeting ANSI/NSF Standard 61 and ANSI/AWWA B100 standards with an effective size of 0.55±0.05 millimeters and uniformity coefficient less than 1.5, reinstatement of anthracite, and sampling and testing of spent media for non-hazardous classification. Six bid line items cover mobilization/demobilization, anthracite removal, sand removal, internal repairs, sand procurement and installation (unit price per cubic foot), and filter restoration, all with a contract completion deadline of 40 working days. Liquidated damages are assessed at $500 per calendar day for delays. Acceptable silica sand suppliers are CEI Filtration (Ohio), Northern Filter Media (Iowa), Unifilt Corporation (Pennsylvania), and Carbon Activated Corp. (California).

Bid security of not less than 10 percent of the aggregate bid sum is required as a bid bond, certified check, cashier's check payable to the Sacramento County Treasurer, or cash. The successful bidder must execute Material, Labor, and Performance Bonds, each for not less than 100 percent of the contract price, issued by a corporate surety acceptable to the County. Contractor award is anticipated October 1, 2026. Bids must be submitted electronically through the Sacramento County Electronic Bidding Portal with automatic online opening at 2:01 p.m. on the due date. Vehicles with a gross vehicle weight rating greater than 8,500 pounds may be subject to California Air Resources Board Advanced Clean Fleets regulations.