Corporation Yard Groundwater Monitoring Wells Project

The Corporation Yard Groundwater Monitoring Wells Project in Pittsburg, California, requires the installation of groundwater monitoring wells, soil vapor wells, and sub-slab vapor pins, along with associated soil borings and subsurface sampling to assess petroleum-hydrocarbon contamination and vapor intrusion risks in corporation yard buildings, with a particular focus on delineating the lateral extent of PCE in soil vapor. The work involves drilling and sampling soil, groundwater, and soil vapor, followed by restoration of surface conditions, all in strict accordance with the City of Pittsburg’s 2022 Standard Details and Specifications, the current edition of Caltrans’ Standard Specifications, and applicable state codes. The project scope includes five soil borings, three shallow-zone and four deeper-zone monitoring wells, three soil vapor wells, and four sub-slab vapor pins, with completion mandated within 30 calendar days from the Notice to Proceed, though the anticipated start date of October 5, 2026, is not binding. All materials and samples must be properly labeled, sealed, and transported on ice to maintain integrity, and the contractor must comply with state environmental and safety regulations, including the Notice of Excavation requirements under Government Code § 4216 and the prevailing wage mandates of Labor Code § 1720. The successful bidder must hold a valid C-57 Well Drilling contractor’s license, obtain a City business license within 14 days of potential award, ensure all subcontractors are DIR-registered and licensed, and maintain workers’ compensation coverage in compliance with Labor Code § 3700. Pollution liability and builder’s risk insurance are waived, but bid security of ten percent of the bid amount and 100 percent performance and payment bonds are required. The bid must be submitted sealed by August 11, 2026, at 2:00 p.m. to City Hall, and responses must include a completed Bidder’s Questionnaire, which must be submitted within 48 hours if requested. The award will go to the lowest responsive and responsible bidder, who must certify examination of all contract documents, absence of discrimination, adherence to the Iran Contracting Act, and no prior debarment or termination for cause. All sampling and reporting must follow chain-of-custody protocols and be documented in the specified appendices.