UNSPSC 47101524: Sludge or sewage composting equipment

UNSPSC 47101524 Sludge or sewage composting equipment (Commodity) encompasses replacement and repair of wastewater and water treatment facility equipment, including drive shafts, thickener mechanisms, clarifier components, and associated mechanical systems for sludge handling and treatment. State and local governments purchasing under this code procure replacement parts and equipment rehabilitation services to maintain solids treatment infrastructure at municipal water reclamation and wastewater treatment facilities. The code captures both standalone equipment replacement (such as dual-shaft drive units for softener systems) and broader facility equipment rebuilds (gravity thickeners and clarifiers), typically delivered through sole-source procurement, sealed bids, and design-build contracts. Issuing bodies include city water departments (Holly Hill, Phoenix, Rome), regional water authorities (Macon Water Authority), county purchasing divisions (Gwinnett County), and state environmental service agencies (Maryland Environmental Service). These bodies also solicit complementary services such as vacuum truck vactor services, sludge hauling, and polymeric chains for mechanical systems across multiple treatment plants simultaneously.

Recent activity spans Florida, Georgia, Maryland, and Arizona, with significant procurement volume in Georgia and Maryland. The City of Holly Hill, Florida posted a sole-source drive shaft replacement (SS202001) for $113,067 in October 2026. The City of Phoenix issued an IFB for five-year vactor services requirements contract (IFB-27-0462) with offers due October 19, 2026, covering vacuum truck and jet rodding across water and wastewater treatment plants with DBE-N compliance requirements. The City of Rome, Georgia solicited design-build rehabilitation statements of qualifications for secondary clarifiers (026-26) due November 3, 2026. The Macon Water Authority issued an IFB for gravity thickener and clarifier rebuilds (PE33561NONST2027000000073) due October 20, 2026 with mandatory pre-bid meeting October 6, requiring a Georgia Utility Contractor License and minimum 51 percent self-performance. Maryland Environmental Service has posted multiple sealed-bid solicitations for liquid sludge hauling services, including an SBR procurement (1262665R) due September 18, 2026, and a central-region WWTP hauling contract (1262625) due May 26, 2026, covering 309,000 to 586,000 estimated annual gallons across six to four facilities with per-gallon unit pricing and five-year renewal options.