Donahue WWTP - Secondary Wastewater Treatment in Donahue, Iowa

Donahue WWTP is a municipal wastewater treatment facility located in Donahue, Iowa, serving a small population of 316 residents. The plant provides secondary treatment, a standard level for communities of this size in the United States. The plant has a designed capacity of 151.42 cubic meters per day and currently discharges approximately 75.71 cubic meters per day. As a US facility, it operates under the Clean Water Act, with National Pollutant Discharge Elimination System (NPDES) permits issued by the Iowa Department of Natural Resources to regulate effluent quality and protect receiving waters. The treated effluent from Donahue WWTP enters the local drainage network, which flows into the Mississippi River via tributaries. The Mississippi River is a major ecological corridor supporting diverse aquatic life and providing drinking water for millions downstream. The plant's secondary treatment helps reduce nutrient and pollutant loads to this vital waterway.

Donahue WWTP discharges into the local watershed that drains to the Mississippi River, one of the largest river systems in North America. The Mississippi River supports a wide range of aquatic species and serves as a critical migratory route for birds and fish. Nutrient loading from wastewater can contribute to hypoxia in the Gulf of Mexico, making effective treatment important for downstream ecosystem health.