Plumbing Repair and Replacement Services in Mariposa, San Joaquin, and Tuolumne Counties

The California Department of Transportation (Caltrans) is soliciting bids for plumbing repair and replacement services across three maintenance stations located in Mariposa, San Joaquin, and Tuolumne Counties. This Invitation for Bid (IFB) encompasses comprehensive plumbing work including excavation, sewage pipe removal and installation, utility line marking, line cleaning and unclogging, and final inspections at the Midpines Maintenance Station, Stockton Landscape Maintenance Station, and Groveland Maintenance Station. The contract includes nine line items covering removal and installation of sewage pipes at each location, plus utility work and written reports with photographs. Bidders must hold a current Class A General Engineering Contractors license, C34-Pipeline Contractors license, or C42-Sanitation Systems Contractors license from the California Contractors State Licensing Board and must be registered with the Department of Industrial Relations. Mandatory site inspections are scheduled for March 11, 2026, with three separate start times at 9:00 a.m., 11:00 a.m., and 2:30 p.m. at the respective locations. Written questions must be submitted by March 12, 2026, at 12:00 p.m., with bids due on March 26, 2026, at 2:00 p.m. and bid opening scheduled for 2:30 p.m. the same day. The proposed award date is April 13, 2026, with contract commencement on May 1, 2026, and expiration on April 20, 2027. Routine services will be provided Monday through Friday from 7:00 a.m. to 3:30 p.m., excluding state holidays.

A Small Business preference of five percent applies to this procurement, with a twenty-five percent participation goal or requirement for non-certified small businesses committing to subcontracting. Additionally, a three percent Disabled Veteran Business Enterprise (DVBE) participation is required, with incentive opportunities available up to a five percent incentive cap based on confirmed DVBE utilization. Prevailing wage requirements apply to this public works contract, with rates varying by county, and contractors must maintain certified payroll records and submit monthly invoices with supporting documentation. A payment bond of one hundred percent is required if the bid exceeds $25,000. The contract is state-funded with no federal participation indicated, and the state will pay applicable sales and use taxes. The maximum bid amount is $461,000, establishing the budget ceiling for this procurement.