NIGP 88564: Filter Aids: Diatomaceous Earth, Fuller's Earth, etc.

NIGP 88564 Filter Aids: Diatomaceous Earth, Fuller's Earth, Etc. is an Item code that covers filtration and treatment media used in municipal water treatment and recycling operations. State and local governments procure under this code primarily specialized membranes, activated carbon, and treatment chemicals for direct replacement in existing water infrastructure and ongoing operational needs. The issuing bodies include water districts, municipal utilities, and city public works departments responsible for potable water treatment and wastewater recycling. The scope spans pre-qualified replacement components for advanced treatment systems, bulk delivery of treatment chemicals to multiple facilities, and supplier agreements with performance guarantees and NSF certifications.

Recent solicitation activity centers on California and Georgia. West Basin Municipal Water District in Los Angeles County posted RFQ RFQTH0131 on June 25, 2026, seeking pre-qualification of suppliers for submerged microfiltration membranes to replace end-of-life Scinor PVDF and Memcor CMF modules at the Edward C. Little Water Recycling Facility, with Statement of Qualifications due May 26, 2026 and a two-phase pre-qualification process leading to subsequent competitive testing. The City of Griffin, Georgia posted Invitation to Bid #26-008 on April 29, 2026, for FY27 water treatment chemicals including sodium hydroxide, liquid chlorine, aluminum sulfate, activated carbon, potassium permanganate, and polymers, with 72-hour delivery to six facilities and award by line item to lowest responsive bidders based on service capability, product quality, and prior performance, responses due May 28, 2026 through the Vendor Registry platform. Both solicitations require NSF 60 or ANSI/NSF Standard 60/61 certification and specify no set-aside designations.