NIGP 89013: Clarifiers and Settlers (Separators)

NIGP 89013 Clarifiers and Settlers (Separators), an Item code, encompasses the procurement of clarifier mechanisms, drive systems, rehabilitation services, and replacement parts for municipal and county water and wastewater treatment facilities. State and local governments solicit under this code to rehabilitate existing clarifiers, replace clarifier mechanisms and drives at operating treatment plants, upgrade particle-counting and monitoring equipment, and procure specialized components such as scum baffles, effluent weirs, and drive mechanisms rated for specific flow capacities and design standards. Issuing bodies include county water and wastewater agencies (Cobb County, Georgia; Collier County, Florida; Seminole County, Florida; Gwinnett County, Georgia; Hillsborough County, Florida), municipal water and wastewater departments (City of Charlotte, North Carolina; City of Douglas, Georgia; City of Pendleton, Oregon; City of Holly Hill, Florida), and state water resource agencies (California Department of Water Resources). Recent solicitations emphasize rehabilitation and replacement of secondary and primary clarifiers at facilities operating at high average daily flows, with work scopes typically requiring continuity of plant operations during construction and compliance with prevailing wage, Davis-Bacon, and federal disadvantaged business enterprise requirements where applicable.

Recent activity concentrates in Florida, Georgia, North Carolina, Oregon, and California. The City of Pendleton, Oregon issued an ITB for West Secondary Clarifier rehabilitation at its Wastewater Treatment and Recycling Facility (due June 25, 2026), requiring prequalification and prevailing wage compliance under federal Clean Water State Revolving Fund financing. Cobb County, Georgia solicited bids for rehabilitation of four secondary clarifiers at its South Cobb Water Reclamation Facility, with one clarifier requiring immediate repairs and all work including drive mechanism rebuilds, concrete repairs, and baffle replacement (bids due August 27, 2026). The City of Charlotte, North Carolina issued ITB FY26-ITB-08 for a complete primary clarifier mechanism rated at 3.45 million gallons per day average flow and 7 million gallons per day peak flow, with 316L stainless steel construction and delivery within forty weeks (bids due April 8, 2026). Collier County, Florida solicited sealed bids for construction of a new reinforced concrete blend tank and chemical injection systems as part of lime softening improvements at its South County Regional Water Treatment Plant, with an anticipated project budget of $3.29 million and substantial completion within 277 calendar days (bids due July 1, 2026). The California Department of Water Resources issued IFB 10214188 for comprehensive water treatment system services—inspection, testing, maintenance, repair, and installation—across twelve facilities in Byron, Gustine, Bakersfield, and Pearblossom, with a three-year initial term, time-and-materials pricing, and mandatory 3 percent Disabled Veteran Business Enterprise participation (bids due June 9, 2026).