Biosolids Processing and Removal Services

The City of Rock Hill, South Carolina is seeking proposals for Biosolids Processing and Removal Services for the Manchester Creek Wastewater Treatment Plant (MCWWTP). The procurement involves operating two existing 2002 2.0 Meter BDP model 3DP belt filter presses to perform biosolids dewatering, stabilization, and transportation to disposal sites. Proposers must be qualified to manage the entire scope of services, including dewatering operations, maintaining work areas, staging trucks, providing qualified operators, preparing regulatory reports, and maintaining a spill response plan. The contract will initially run for twelve months starting July 1, 2025, with potential for four additional 12-month renewals. A mandatory pre-proposal meeting is scheduled for April 28, 2025, at 10:00 am, with proposals due by May 14, 2025, at 10:00 am through the City's eProcurement Portal. The City will evaluate proposals using a weighted scoring system that considers qualifications (20%), experience (20%), approach to work (20%), capacity (20%), and price (20%), with local businesses in Rock Hill or York County potentially receiving a 3-5% adjustment factor in the evaluation process.

In 2021, approximately 11,200 tons of biosolids were sent to the Water and Sewer Authority of Cabarrus County for incineration, and 6,200 tons to Anson Landfill, which provides context for the scale of services required. While no specific set-aside designations for disadvantaged enterprises are explicitly mentioned, the proposal does include a local business preference mechanism. The pricing structure will include unit costs for labor (standard and overtime), polymer, biosolids transportation, and administration fees. The sample agreement indicates that payment will be structured on a monthly invoicing basis, with the City potentially retaining up to 10% of invoice amounts to ensure satisfactory project completion. Although specific budget ranges are not detailed, the historical tonnage and comprehensive service requirements suggest a significant municipal contract with potential for substantial annual value. The contract will require comprehensive insurance, compliance with federal, state, and local regulations, and adherence to equal opportunity employment standards.