Biosolids Transport for Planning and Public Works

Pierce County is seeking a qualified transportation contractor through a competitive RFP process to deliver biosolids from the Chambers Creek Regional Wastewater Treatment Plant to Boulder Park or other designated locations. The biosolids to be transported will primarily consist of 15-22% solid cake that meets U.S. EPA’s Class B biosolids standards. The contract aims to secure the transportation of approximately 20-70% of the county’s current biosolids production, which totals around 12,500 wet tons annually. The selected contractor will enter into a Services Agreement with Pierce County, with the contract value estimated between $500,000 and $2,000,000. The contract emphasizes compliance with prevailing wage laws under Chapter 39.12 RCW, requiring all workers involved to be paid wages at or above the prevailing rate as determined by the Department of Labor and Industries. Contractors and subcontractors must submit the necessary filings, including Statements of Intent and Affidavits of Wages Paid, along with applicable fees. The procurement process is managed by Pierce County, Washington, with a response deadline of June 18, 2025. Interested parties can contact Ashley Carabelos via email or phone for further details, and additional information is accessible through the county’s procurement portal.