NIGP 33512: Ammonium Sulfate

NIGP 33512 Ammonium Sulfate is an Item code covering fertilizer and chemical compounds that state and local governments procure for turf management, water treatment, and grounds maintenance operations. Recent solicitations show purchasing agencies buying ammonium sulfate in bulk (50-pound bags, dry ton quantities, and as-needed liquid supplies), alongside related products such as copper sulfate, herbicides, and pesticides under integrated landscape-chemical procurement vehicles. Issuing bodies include county governments (Pasco County and Gwinnett County, Florida and Georgia), municipal water and public-infrastructure departments (City of Tallahassee), and county parks and recreation boards (White County Board of Commissioners, Georgia). Most solicitations are structured as indefinite-quantity contracts, requirements contracts, or as-needed agreements running one to three years with potential renewal periods, reflecting ongoing operational demand at multiple delivery locations rather than one-time purchases.

Geographic activity clusters in Florida and Georgia, with recent opportunities from Pasco County (RFQ for copper sulfate crystals and liquid, due June 26, 2026; IFB for herbicides, fertilizers, and pesticides, due June 16, 2026), Gwinnett County (Informal Written Quote for 34-0-0 ammonium sulfate in 50-pound bags for parks and recreation, 840 bags total, due May 20, 2026), White County (RFP for chemical application services at three recreation facilities, due April 2, 2026), and the City of Tallahassee (IFB for bulk liquid aluminum sulfate delivery on a requirements basis, approximately 900 dry tons annually, due March 31, 2026). Vendors must typically demonstrate three years of business experience, provide multiple project references, maintain comprehensive insurance (general liability commonly $1 million to $2 million, workers' compensation, and environmental coverage where applicable), comply with state E-Verify and drug-free workplace requirements, and bid on an FOB Destination basis with all delivery and handling costs included. Local vendor preferences and participation by minority or women-owned businesses are encouraged in some jurisdictions but are not formally set-aside or required.