Charles City WWTP - Municipal Wastewater Treatment in Charles City, Iowa

Charles City WWTP is a municipal wastewater treatment facility located in Charles City, Iowa, serving a population of around 7,787. The plant is situated inland in Floyd County, part of the Upper Midwest region of the United States. As a publicly owned treatment works (POTW), it plays a key role in managing wastewater for the community. Under the U.S. Clean Water Act, plants of this scale are typically required to provide secondary treatment as a minimum standard. The National Pollutant Discharge Elimination System (NPDES) permit program governs discharge limits to ensure compliance with water quality standards. The plant is expected to meet these federal and state requirements. The treated effluent from Charles City WWTP is discharged into a receiving water body within the Cedar River watershed, which ultimately flows into the Mississippi River. This drainage basin supports diverse aquatic life and provides water resources for downstream communities. The plant's operations contribute to maintaining water quality in this important regional system.

Charles City WWTP discharges into a tributary of the Cedar River, which flows southeast to the Iowa River and then to the Mississippi River. The Mississippi River is a major ecological corridor supporting diverse fish, bird, and plant species. The Cedar River watershed is subject to nutrient pollution concerns, making effective wastewater treatment critical for downstream water quality and aquatic habitat.