Staff recommends approval of the purchase of replacement parts for the Trojan 3000 Plus UV Disinfection System in the amount of $108,843.10.

The Water Reclamation Facility utilizes three (3) ultraviolet (UV) modules to disinfect treated wastewater before the water returns to the Yellowstone River. These modules operate continuously to disinfect the entire wastewater flow of the City, approximately 20 million gallons every day. The components of the UV modules are required to be replaced periodically to avoid disinfection failure which would result in a permit violation.

Trojan Technologies was the manufacturer of the three (3) UV modules, and they also manufacture the replacement parts. Purchasing from Trojan Technologies ensures the replacement parts match the original equipment. Trojan Technologies is the only known vendor of original equipment replacement parts. The quote form and the sole source justification is attached to this memo.

City Council may:

• Approve the purchase of the replacement parts for the Water Reclamation Facility UV Disinfection System in the amount of $108,843.10; or,
• Not Approve the purchase of the replacement parts. If not approved, the routine maintenance of the UV system will not proceed. The UV system will eventually fail, resulting in the discharge of treated wastewater that exceeds the permit and could result in fines from the Montana Department of Environmental Quality.

The purchase of the UV disinfection system replacement parts is for $108,843.10 and was funded in the FY25 wastewater budget.