College Pump Station Wet Well Rehabilitation

The Orange County Sanitation District (OC SAN) is requesting bids on wet well rehabilitation at College Pump Station, 3198 College Avenue, Costa Mesa, California, with bids due September 22, 2026 at 11:00 a.m. Pacific Time. Bidders must hold a California Class "A" contractor license and demonstrate experience with at least two similar-scope projects within the last seven years and three pump sewer bypass operations projects within the last ten years with flows of at least five million gallons per day.

The scope includes removal of existing coating, unsound concrete, and corroded reinforcing steel; concrete repair; new protective coating application inside the wet well; temporary sewage bypassing; manhole riser modifications; traffic control; and road restoration. Final completion is 425 calendar days from the Notice to Proceed.

The engineer's estimate is $7,540,000. Bid security equal to 10% of the total bid amount is required and may be submitted as cash, a certified check, or a surety bond. Performance and Payment Bonds, each in the amount of 100% of the contract value, are required upon contract execution. The project is subject to California Labor Code prevailing wage requirements and compliance monitoring by the California Department of Industrial Relations.

Bidders and subcontractors must meet OC SAN's safety standards, including specified accident frequency factor limits and workers' compensation experience modification rate requirements. A non-mandatory pre-bid conference and job walk will be held August 25, 2026 at 9:00 a.m. at OC SAN's Headquarters in Fountain Valley, with an optional virtual pre-bid conference available. Written questions are due September 1, 2026 at 5:00 p.m. Pacific Time. Bids must be submitted electronically through OC SAN's Vendor Portal in OpenGov. The contract will be awarded to the lowest responsive bid by a responsible bidder within 120 days after bid receipt, and bid results will be posted within 48 hours of the bid due date.