Machado Wastewater Treatment Facility (WWTF) Upgrade and Expansion

San Miguel Community Services District is requesting sealed bids for the Machado Wastewater Treatment Facility Upgrade and Expansion in San Miguel, California, with bids due November 20, 2026 at 9:00 a.m. and a mandatory pre-bid conference on October 13, 2026 at 9:00 a.m. Bidders must hold a valid California Class A Contractor's license and be registered as a public works contractor with the Department of Industrial Relations at bid submission.

The scope encompasses demolition of existing influent and metering stations, de-sludging and abandonment of aeration ponds 1 and 3, and construction of new influent and effluent lift stations, equalization tanks, pump stations, percolation beds, and ancillary site infrastructure. Work includes coordination with equipment vendors to install owner-furnished contractor-installed (OFCI) packages: headworks skid with course screen, fine screen, and de-grit system; membrane bioreactor skid; UV disinfection skid; sludge tank and dewatering press skid; and generators. Additionally, the District requires new electrical building, covered parking, vehicle wash bay, fueling station, potable water and fire service systems, recycled water infrastructure, stormwater detention pond, fencing, site roads, and landscape work. The project duration is 820 calendar days.

The project is funded through State and Federal funds and requires compliance with Davis-Bacon and California Labor Code Section 1773 prevailing wage standards, with the higher of State or Federal rates applying. Bidders must comply with California Air Resources Board In-Use Off-Road Diesel-Fueled Fleets Regulations and submit valid Certificates of Reported Compliance. Bid security of 10 percent of the total bid price and performance and payment bonds each equal to 100 percent of the contract price from a California-admitted surety insurer are required. Owner retention is 5 percent of each progress payment. The contract will be awarded to the lowest responsive, responsible bidder based on the base bid alone. Bidding documents are available through ASAP Reprographics at https://www.projectsasap.com/jobs/public for a $25 registration fee for electronic access.