UNSPSC 47101536: Sludge collectors

UNSPSC 47101536 Sludge collectors, a Commodity code, covers vacuum truck services, sludge hauling and transport, and related equipment for wastewater treatment plants and water reclamation facilities. State and local governments procure these services to remove, transport, and dispose of liquid sludge and biosolids generated during water and wastewater treatment processes. Issuing bodies include regional water authorities, municipal wastewater departments, environmental service agencies, and county water utilities. The Maryland Environmental Service appears as a repeat buyer, having issued multiple sludge hauling solicitations in 2026 alone.

Recent activity spans Florida, Georgia, and Maryland. The City of Phoenix issued an IFB for five-year vactor services (vacuum truck, jet rodding, hydro-blasting, and submersible pump services) due October 19, 2026, subject to DBE-N compliance and requiring five years of prior experience; the Maryland Environmental Service solicited sealed bids for liquid sludge hauling to four wastewater treatment plants in Washington and Frederick Counties with a June 29, 2026 bid due date under a Small Business Reserve set-aside requiring five years of documented liquid waste hauling experience in Maryland; the Macon Water Authority sought sealed bids for rebuild of gravity thickeners and clarifier equipment at Rocky Creek WRF due October 20, 2026 with a mandatory pre-bid meeting and requiring Georgia Utility Contractor License; and the City of Rome, Georgia solicited design-build statements of qualifications for secondary clarifier rehabilitation due November 3, 2026. The code also reflects ancillary procurement activity—Gwinnett County requested quotations for 150 units of polymeric chain (item #81424191) due August 5, 2026, and the City of Holly Hill, Florida pursued sole-source replacement of a WesTech drive shaft unit for water treatment plant softener equipment valued at $113,067.00.