2027 CIPP Lining Project

Napa Sanitation District is soliciting sealed bids for the 2027 CIPP Lining Project (CIP 27701), which rehabilitates approximately 12,159 linear feet of 6-, 8-, 10-, and 12-inch sewer mains by cured-in-place pipe lining. A mandatory pre-bid conference is set for November 12, 2026 at 10:00 a.m. at the District office, 1515 Soscol Ferry Road, Napa, and bids are due December 2, 2026 at 2:00 p.m. Failure to attend the pre-bid conference results in bid rejection.

Bidders must be registered with the California Department of Industrial Relations, and the successful contractor must hold a valid California Class A License. All work is subject to California Labor Code requirements, including prevailing wage rates. Bids require a certified check or bidder's bond equal to 10 percent of the bid amount. A mandatory site visit precedes bidding and may be scheduled at the contractor's convenience, but bidders may not enter private property or open manholes.

The estimated construction cost is $682,000. The successful bidder has 240 calendar days from the Notice to Proceed to achieve substantial completion. Payment, performance, and maintenance bonds are due within 10 days of award notification. Bids remain irrevocable for 90 calendar days after opening, and the Owner reserves the right to reject any or all bids.

Contract documents, including half-size drawings, are available for $50.00 plus shipping from BPXpress Reprographics at www.napasanplanroom.com or (707) 745-3593. The successful bidder may enter a voluntary partnering agreement with the Owner to establish cooperative goals for on-schedule, on-budget completion.