RFP 2026-072 Twelve Mile Creek WRF Biosolids Services

Union County Water, North Carolina, is seeking qualified contractors through Request for Proposals (RFP 2026-072) to provide comprehensive biosolids management services for the Twelve Mile Creek Water Reclamation Facility located in Waxhaw, NC. The services required include removal, transportation, and processing or beneficial reuse of dewatered waste activated biosolids generated at the facility, which produces approximately 13,200 wet tons of biosolids annually with typical daily production of 50 wet tons at 16-18% solids concentration. Pricing proposals must include unit costs for transfer of dewatered biosolids to the processing facility ($/wet ton), tipping fees at the processing facility ($/wet ton), and trailer rental for biosolids storage ($/trailer), along with a fuel surcharge or discount structure based on diesel fuel prices with adjustments tied to the CPI-U South Region limited to a maximum of 7% annually after the first 12 months. The contract will have an initial three-year term with five optional one-year renewal periods at the County's discretion, subject to annual budget approval. Key deadlines include a non-mandatory pre-proposal conference and site visit on April 28, 2026, at 10:00 AM EST at the facility (8299 Kensington Dr., Waxhaw, NC 28173), written proposal questions due by May 6, 2026, at 5:00 PM, and electronic proposal submissions due May 19, 2026, at 11:00 AM EDT to the Union County Procurement Department. Contractors must comply with all federal, state, and local environmental regulations, including 40 CFR Part 503, and maintain comprehensive insurance coverage including workers' compensation, commercial general liability ($2,000,000), commercial automobile liability ($1,000,000), and pollution liability insurance ($1,000,000 claims made).

The County encourages good faith outreach to Minority Business Enterprises (HUB Certified) and Small Businesses and reserves the right to reject any or all proposals or award to multiple vendors. Union County does not guarantee estimated biosolids quantities or solids percentages, and contractors assume responsibility for all spill containment, cleanup costs, and environmental remediation associated with the services. No incumbent vendors or current contractors are identified in the procurement documentation. The specific award value or budget range for this contract has not been disclosed in the available materials, though pricing will be evaluated based on the submitted unit costs and fee structures. Qualified firms must demonstrate experience and capabilities in biosolids management and processing operations, with the ability to manage the facility's significant annual biosolids volume and maintain compliance with stringent environmental and safety standards throughout the contract period.