UNSPSC 41115611: Dissolved oxygen meters

UNSPSC 41115611 Dissolved oxygen meters is a Commodity code covering fixed atmospheric monitoring instrumentation and sensors that state and local governments deploy at water and wastewater facilities to detect hazardous gases and chemical conditions. The City of Phoenix Water Services Department solicited this equipment under IFB-270435, due September 4, 2026, as part of a five-year contract for atmospheric monitoring instruments installed at lift stations, headworks buildings, chemical storage rooms, confined space entry points, and underground vaults. The scope encompasses sensors, controllers, alarms, calibration materials, and replacement parts designed to detect hydrogen sulfide, methane, oxygen depletion, chlorine, ammonia, ozone, chlorine dioxide, and carbon monoxide. Contractors must provide installation assistance, testing, commissioning, operator training, and maintain replacement parts in local stock with 48-hour availability and Saturday delivery capability. All technicians performing maintenance and repair must be certified and trained. The solicitation required submission under a Disadvantaged Business Enterprise - Neutral program participation requirement with compliance to 49 CFR Part 26 small business subcontractor obligations under Federal Transit Administration guidelines.

The recent opportunity shows activity among municipal water and wastewater authorities in Arizona. The City of Phoenix listed manufacturers including ATI, De Nora, Drager, and MSA or city-approved equivalents, and pricing was required on a firm-and-fixed basis for the initial one-year period with annual increases thereafter, quoted as a single percentage discount from manufacturer published price lists. Award was to be made to the lowest responsive and responsible offeror, with the city reserving the right to award by individual line items, in groups, or all or none, and to award multiple contracts. Contractors needed a minimum of three years in business, three verifiable professional references, and complete certificate of insurance within ten calendar days of award. A non-mandatory pre-offer conference was held August 25, 2026, and written inquiries were due September 1, 2026.