Wastewater Treatment Plant Monitoring and Assessment

Image of the Metropolitan Wastewater Treatment Plant outfallMCES monitors the quality of the treated wastewater from its eight Twin Cities Metropolitan wastewater treatment plants which is discharged into area rivers. Effluent toxicity-testing is conducted regularly to meet National Pollutant Discharge Elimination System (NPDES) permit requirements, and help ensure that the treated wastewater is safe to enter area rivers.


Groundwater monitoring is also conducted at several wastewater treatment plants.

View map of MCES wastewater treatment plant locations (PDF).

Data & Report Requests

    Older reports not available on our web site may be obtained by emailing a request to MCES