NIGP 89021: Desludging Equipment and Accessories
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Code facts
NIGP codes come from the NIGP Code (NIGP: The Institute for Public Procurement, maintained by Periscope Holdings), and state and local contract opportunities from the governments' procurement sites.
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UNSPSC codes for 89021
About NIGP 89021
NIGP 89021 Desludging Equipment and Accessories, Item tier, covers replacement drive shafts, polymer conditioning chemicals, vactor and jet-rodding equipment, sludge hauling vehicles, clarifier and thickener mechanisms, and process equipment used in wastewater solids handling and biosolids dewatering operations at municipal treatment plants. State and local water and wastewater authorities—cities, counties, environmental service agencies, and special-purpose districts—procure this equipment and services through RFQs, IFBs, and sealed bids to maintain treatment infrastructure, replace aging mechanisms, and manage solids removal and disposal workflows.
Recent activity spans water authorities, county and city departments, and state environmental agencies across Florida, Georgia, Maryland, California, Missouri, and Arizona. The City of Holly Hill, Florida procured a WesTech DS43 replacement drive shaft for its Water Treatment Plant through sole-source procurement (IFB, $113,067 total including installation). The Macon Water Authority (Georgia) issued a sealed IFB for rebuild of three gravity thickeners and a clarifier #6 with mandatory pre-bid attendance by October 6, 2026 and bids due October 20, 2026. The Maryland Environmental Service has posted multiple sealed-bid solicitations for liquid sludge hauling services across central-region and multi-county wastewater treatment plants, with small-business reserve (SBR) set-asides. The City of Phoenix issued a five-year IFB for vactor and jet-rodding services (DBE-N compliance required) with offers due October 19, 2026. Charles County, Maryland sought design and engineering services for aerated sludge holding tank upgrades at its Mattawoman WWTP (RFP with site visit and pre-proposal meeting, proposals due July 13, 2026). Water treatment system service contracts are active in California and Maryland; Gwinnett County, Georgia requested quotations for polymeric chains used in treatment equipment. These solicitations emphasize compliance with confined-space regulations, prevailing wage (where applicable), equipment certifications, prior experience requirements, and firm-fixed or unit pricing.
Quick answers
What is NIGP 89021?
NIGP 89021 is Desludging Equipment and Accessories, an item in NIGP 30, Water and Sewer Treatment Equipment, Supplies, and Services.
Which states post the most state and local bids under NIGP 89021?
The states with the most state and local contract opportunities under NIGP 89021 posted in the last 90 days are Maryland (3), Texas (1) and Missouri (1).
Which UNSPSC codes match NIGP 89021?
NIGP 89021 maps to 8 UNSPSC codes, including 47101524 Sludge or sewage composting equipment, 47101526 Sludge pelletizers and 47101527 Sludge shredders.
What is the latest state & local contract opportunity under NIGP 89021?
The latest state & local contract opportunity under NIGP 89021 is Request for Information WSSC Water Biosolids Market Research from Maryland, posted October 28, 2026.
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