NIGP 82078: Oxygen Reduction Equipment, Dissolved

NIGP 82078 Oxygen Reduction Equipment, Dissolved (Item) encompasses sensors, controllers, alarms, and calibration materials that detect oxygen depletion and related hazardous gases at water and wastewater facilities. State and local water authorities are the primary buyers under this code, procuring fixed atmospheric monitoring systems for confined spaces, lift stations, chemical storage areas, and process basins. The work includes installation assistance, equipment commissioning, operator training, and multi-year maintenance and spare-parts contracts with on-call response requirements.

The City of Phoenix Water Services Department posted IFB 270435 in August 2026, requesting sealed offers for atmospheric monitoring instruments with a response deadline of September 4, 2026. The five-year contract calls for equipment from approved manufacturers (ATI, De Nora, Drager, MSA, or City-approved equivalents), local stock availability of replacement parts within 48 hours with Saturday delivery, technician certification, and firm-fixed pricing for year one with notice-of-increase provisions thereafter. A DBE-Neutral program participation requirement and Federal Transit Administration small business subcontractor obligations under 49 CFR Part 26 apply. The non-mandatory pre-offer conference occurred August 25, 2026.