County of San Bernardino

Release: Dec 9, 2025

Close: Jan 27, 2026

The solicitation is an Invitation for Bid from San Bernardino County Public Works (Solid Waste) for construction of a composite liner system and related civil/drainage and landfill infrastructure at the Mid-Valley Sanitary Landfill in Rialto, CA. A mandatory pre-bid meeting and job walk are scheduled for January 8, 2026; bids are due January 27, 2026 at 10:00 AM local time. Bid documents and final plans/specifications are available at no cost on the San Bernardino County ePro site (linked from the aggregator).

Release: Dec 9, 2025

Close: Feb 3, 2026

The County of San Bernardino (Department of Public Works - Solid Waste Management Division) is soliciting contractors to construct a Phase 1B liner system at the Landers Sanitary Landfill, including mobilization, excavation, installation of geosynthetic clay liners and geomembranes, drainage systems, and protective soil covers. The work includes substantial earthmoving (approx. 405,000 cubic yards of excavation) and installation of 285,000 sq ft of GCL, with performance to begin in April 2026 and completion within 180 working days from Notice to Proceed. Bidders must hold a valid California State Contractor 'A' license, register in the San Bernardino County ePro system, and provide bid security equal to 10% of the bid.

Release: Dec 9, 2025

Close: Jan 27, 2026

The County of San Bernardino, Department of Public Works (Solid Waste) issued an open market solicitation (PWG126-SOLID-6182) for construction of a composite liner system at the Mid-Valley Landfill in Rialto, CA, including excavation, geosynthetic installation, and soil compaction with prevailing wage and safety requirements. A mandatory pre-bid meeting and job walk are scheduled for January 8, 2026 at the Department of Public Works followed by a job walk at the landfill. The solicitation was posted Dec 9, 2025, has an estimated value of $5,000,000–$15,000,000, and the bid opening/response deadline is Jan 27, 2026.