Bellevue STP Wastewater Treatment Plant, Bellevue, Iowa

Bellevue STP is a municipal wastewater treatment facility located in Bellevue, Iowa, United States. The plant serves a population of approximately 2,191 residents, reflecting a small community-scale operation in the Upper Midwest region. The plant provides secondary treatment, which is the standard biological treatment process required under the U.S. Clean Water Act for municipal wastewater. With a designed capacity of 757.08 units and an average daily discharge of 492.10 units, the facility operates well within its capacity, indicating reliable treatment performance. The treated effluent is discharged into a local water body that ultimately drains into the Mississippi River, a major river system that flows into the Gulf of Mexico. The plant's operations contribute to protecting downstream water quality in the Mississippi River basin, supporting aquatic life and recreational uses.

The plant discharges into a receiving water body that flows to the Mississippi River, which drains into the Gulf of Mexico. The Mississippi River basin supports diverse aquatic ecosystems and is a critical migratory corridor for fish and birds. The plant's secondary treatment helps reduce nutrient and pollutant loads, mitigating potential impacts on downstream water quality and the hypoxic zone in the Gulf.