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Rosemount Wastewater Treatment Plant

The Rosemount Plant is MCES's smallest facility, treating an average of 600,000 gallons per day. Built in 1973, the plant was operated in cooperation with the U.S. Environmental Protection Agency as a demonstration project using a physical/chemical treatment process. That process proved inefficient, and in 1989 the plant was rebuilt and expanded using conventional biological treatment processes.

The Rosemount Plant is an aerated pond plant with a design capacity of 1.28 million gallons per day (MGD). Secondary treatment is provided with effluent discharged to the Mississippi River. Solids production is minimized in the aerated pond process; removal of slowly accumulating sludge inventory is provided for on a periodic basis. Due to growth in the Rosemount Plant service area, MCES is studying the feasibility of replacing the plant with a lift station, forcemain and interceptor. As an interim measure, construction completed in early 2003 has increased the plants capacity from 0.84 MGD to 1.28 MGD.

Wastewater Treatment Plant Information

• Located in Rosemount, Minnesota
• Type: Aerated ponds with UV disinfection
• Capacity: 1.28 million gallons per day
• Discharges to: Mississippi River
• Communities served: 1
• Population served: 7,000
• Interceptors to plant: 8 miles

For more information about the Rosemount Wastewater Treatment Plant, please contact Tim O'Donnell at 651-602-1269 or at tim.odonnell@metc.state.mn.us