# Madison Demandstar #5523

Water treatment chemicals for the City of Madison Water Utility

**Posted:** November 13, 2026
**Respond By:** December 04, 2026
**Identifier:** 5523
**NAICS:** 424690, 325998

The City of Madison is seeking water treatment chemicals for its Water Utility Division.
- **Buyer:** City of Madison - Purchasing Services, for the City of Madison Water Utility Division.
- **Requested items:** Water treatment chemicals; the available notice does not identify chemical types, quantities, part numbers, or product specifications.
- **Named prospective chemical suppliers and manufacturers:** Air Products and Chemicals, Inc.; American Water Chemicals, Inc.; Arq Purification, LLC; CARMEUSE LIME AND STONE; Chemtrade Chemicals US LLC; Evoqua Water Technologies LLC; Hydrite; Kemira Water Solutions; Kleenmark; and Tanner Industries.
- **Other named organizations:** Builders Exchange of WI; Onvia, Inc. - Content Department; and Uptown Compliance Services, Ltd.
- **Notable requirements:** The bid document is referenced, but its contents are unavailable here, so additional technical requirements cannot be confirmed.

### Description

The City of Madison is soliciting bids for treatment chemicals for its Water Utility Division. The bid is identified as RFB-5523-0-2026/ARH, with solicitation number 5523. The source lists the opportunity as active and gives a response deadline of December 4, 2026, at 20:00 UTC. An estimated budget is not provided.

[View original listing](https://www.demandstar.com/app/limited/bids/557651/details)