DBB Prima Zone 4 Phase A Main Gas Line Project

The County of Orange’s OC Waste & Recycling division is soliciting competitive bids for the design, permitting, and construction of a new landfill‑gas collection and control system (LFGCCS) header in Prima Zone 4, Phase A. The work includes trenching, installing HDPE pipe, valves, appurtenances, tie‑ins to existing infrastructure, backfilling, testing, and site restoration, all while coordinating with ongoing landfill operations and complying with California labor and safety regulations. Bidders must hold a California “A – General Engineering” contractor license, provide a 10 % bid bond, and demonstrate at least 51 % self‑performance. The contract will be awarded to the lowest responsive and responsible bidder, with performance and payment bonds required after award. A mandatory pre‑bid meeting/site visit is scheduled for September 30, 2026. • Scope: Design, permitting, and construction of HDPE gas‑line header (trenching, pipe, valves, tie‑ins, testing, restoration). • Location: Prima Deshecha Landfill, 32250 Avenida La Pata, San Juan Capistrano, CA 92675. • Contract type: Fixed‑price lump‑sum construction under a standard County model contract. • Required license: California Class A – General Engineering. • Bid security: 10 % of total bid amount (cash, certified check, or bond). • Mandatory pre‑bid meeting & site visit: September 30, 2026, 9:00 am. • Questions due: October 5, 2026, 2:00 pm (via e‑procurement portal). • Bid submission deadline: October 12, 2026, 2:00 pm (electronic only). • Preference policies: OCLSB/DVBE participation points; required certifications for projects > $5 M.