NIGP 88531: Biological Maintainers (Bacteria, Enzymes, etc.)

NIGP 88531 Biological Maintainers (Bacteria, Enzymes, Etc.), an Item code, encompasses biological systems and chemical treatments state and local governments procure to manage stormwater, water treatment, and air quality applications. Recent solicitations show municipalities and special districts purchasing engineered biological pod systems for nutrient reduction and algal bloom mitigation in stormwater facilities, specialized catalysts for ozone destruction in water filtration, biofilter rehabilitation services for odor control at wastewater treatment plants, and multipurpose water treatment chemicals including activated carbon, potassium permanganate, and polymers that support biological and chemical treatment processes. The issuing bodies are primarily county environmental and water authorities—Escambia County, Gwinnett County, and Eastern Municipal Water District—along with city utilities such as Griffin, Georgia, reflecting the concentration of procurement among regional water and stormwater management agencies.

Geographic activity spans Florida, Georgia, and California, with the most recent and largest-scope opportunities clustered in Florida and Georgia. Escambia County has posted two iterations of the same Bio-Health Pod Systems stormwater technology demonstration project (Solicitation PD2526098 due August 14, 2026 and re-solicited as PD2526111 due September 29, 2026, both RFPs funded through Florida Department of Environmental Protection's Innovative Technology Grant Program), requiring site evaluation, design, permitting, installation, and 12-month monitoring across three wet stormwater facilities with $1 million general liability and $1 million pollution liability insurance required. Gwinnett County Department of Financial Services issued an Informal Written Quotation (PE77023NONST2027000000685) due August 5, 2026 for twelve Carulite-200 catalyst units for ozone destruction. Eastern Municipal Water District solicited biofilter rehabilitation proposals (RFPHH3950, due July 24, 2026) for the Perris Valley Regional Water Reclamation Facility in Riverside County, California. The City of Griffin, Georgia issued Invitation to Bid #26-008 (due May 28, 2026) for water treatment chemicals under a one-year term with up to four renewal options, seeking sodium hydroxide, hydrated lime, liquid chlorine, aluminum sulfate, activated carbon, potassium permanganate, and other AWWA and NSF 60–approved compounds delivered within 72 hours to six treatment locations.