Hazardous Waste Disposal Services in Alameda, Santa Clara, San Mateo, San Francisco, Contra Costa, Marin, Solano, Sonoma, Napa Counties

The California Department of Transportation (Caltrans) is soliciting bids for on-call hazardous waste disposal services across Alameda, Santa Clara, San Mateo, San Francisco, Contra Costa, Marin, Solano, Sonoma, and Napa Counties. The selected contractor will be responsible for the delivery, pickup, transport, and disposal or recycling of various waste streams, including biological, environmentally regulated, universal, and laboratory packed waste, such as petroleum-based asphalt, contaminated soil, solvents, and batteries. Services include waste assessment, neutralization, sampling, profiling, and manifesting. Performance is on an on-call basis, with standard requests requiring a five-working-day response time and emergency requests requiring a response within four hours. This Invitation for Bid (IFB) will be awarded to the low bidder, with a five percent preference granted to certified Small Businesses or Micro Businesses, capped at 50,000 dollars. Bidders must possess extensive certifications, including a Class A General Engineering license, HAZ certification, and various registrations from the US DOT, CHP, CalEPA, and the CA Department of Public Health. Strict adherence to packaging and marking standards per CFR Title 49 and CCR Title 22 is required. Invoices must be submitted monthly in triplicate and include detailed supporting documentation, such as signed manifests and certified weight receipts, with payment terms set at no less than 45 days from the invoice date. Bids must be mailed or hand-delivered to the Caltrans Division of Procurement and Contracts in Sacramento by October 20, 2026, at 2:00 p.m. Pacific Time.