San Pablo Dam Road 24" ACP -CIPP Trunk Line Rehabilitation

The West County Wastewater District (WCW) is seeking qualified contractors to rehabilitate a 24‑inch ACP trunk sewer on San Pablo Dam Road by installing a cured‑in‑place pipe (CIPP) liner. The scope includes 420 linear feet of liner installation, traffic control, temporary bypass/pumping, post‑installation CCTV inspection, and acquisition of all required permits. Work must be performed primarily at night to minimize traffic and sewage flow and must be completed within 30 calendar days of the Notice to Proceed. The solicitation mandates a pre‑bid conference and site visit, requires a 5 % bid security, 100 % performance and payment bonds, prevailing‑wage compliance, and specific contractor licensing (General A, C‑34, or C‑42). • Install approximately 420 LF of 24″ CIPP liner in the existing ACP trunk line • Perform work at night to avoid peak traffic and sewage flow • Provide traffic control, temporary bypass/pumping, and CCTV post‑installation video • Obtain all required permits (WCW, Contra Costa County encroachment, CARB, etc.) • Comply with prevailing‑wage, DIR registration, and California contractor licensing requirements • Submit 5 % bid security and 100 % performance/payment bonds • Complete the project within 30 calendar days of NTP • Mandatory pre‑bid conference and site visit on November 5 2026