NIGP 88584: Sodium Hydroxide

NIGP 88584 Sodium Hydroxide, an Item code, covers the procurement of sodium hydroxide (caustic soda) solutions used in municipal water treatment operations. State and local governments procure this chemical as a pH adjustment and alkalinity control agent in drinking water systems, typically in bulk liquid form delivered to water treatment plants and related facilities. The chemical must meet American Water Works Association (AWWA) and NSF/ANSI 60 certification standards for potable water use. Issuing bodies include municipal water departments and city public works agencies responsible for water treatment infrastructure; activity appears concentrated among smaller to mid-sized cities managing their own treatment processes.

Recent solicitations show geography concentrated in the Pacific Northwest and Southeast. The City of Salem, Oregon Department of Public Works issued Bid No. 267050 on June 2, 2026 for 25% sodium hydroxide (caustic soda) as an IFB with a response date of June 17, 2026 at 11:00 a.m., seeking deliveries in both bulk (1,000-gallon loads) and tote format (280–330 gallons) to two treatment facilities with a one-year contract term running through June 30, 2027 and four renewal options. The City of Griffin, Georgia released Invitation to Bid #26-008 on April 29, 2026 for water treatment chemicals on a line-item basis for Fiscal Year 2027, with sodium hydroxide as one of 16 chemicals requested; responses closed May 28, 2026 at 2:00 p.m., with deliveries required within 72 hours to six water facilities throughout Griffin. Both solicitations emphasize compliance with AWWA and NSF standards, F.O.B. destination pricing, and firm pricing for initial contract terms.