Truck Loading Biofilter Media Replacement at Plant No. 2 (FR2-0034)

The Orange County Sanitation District (OC San) is seeking a qualified contractor to replace the fouled bio‑filter media in the Truck Loading Biofilter System at Plant No. 2. The contractor must provide all labor, equipment, materials, insurance, bonds, permits, licenses, and transportation necessary to procure, remove, and install new bio‑filter media. The scope includes compliance with strict safety PPE requirements, a mandatory pre‑bid job walk, and adherence to California labor and environmental regulations. Bids must be submitted electronically via OC San’s OpenGov portal; only firms that attend the mandatory job walk on September 24, 2026 will be considered responsive. The contract term is up to 84 calendar days from the notice‑to‑proceed date, with payment on net‑30 days after invoice approval.