Saint Ansgar WWTP - Secondary Wastewater Treatment in Saint Ansgar, Iowa

Saint Ansgar WWTP is a municipal wastewater treatment facility located in Saint Ansgar, Mitchell County, Iowa, United States. The plant serves a population of about 1,063 residents, reflecting a small community scale typical of rural Iowa towns. The plant provides secondary treatment, which is the standard level required by the US Clean Water Act for municipal wastewater. With a designed capacity of 378.54 cubic meters per day and an average discharge volume of 340.69 cubic meters per day, the facility operates below its capacity, indicating adequate headroom for current demand. The treated effluent is discharged into local receiving waters that ultimately drain into the Mississippi River basin, contributing to the overall water quality management of the region. The plant's operations help protect downstream aquatic ecosystems and support the environmental health of the surrounding watershed.

The plant discharges into local streams that are part of the Upper Mississippi River basin. The Mississippi River downstream supports diverse aquatic life and provides critical habitat for migratory birds and fish species. The region's agricultural landscape means that nutrient management from wastewater is important for preventing eutrophication in downstream water bodies.