Sigourney East WWTP - Keokuk County, Iowa Wastewater Treatment Plant

Sigourney East WWTP is a municipal wastewater treatment facility located on State Highway 92 in Keokuk County, Iowa. The plant serves a population of approximately 2,111 residents and is part of the region's water infrastructure. It operates under the US Clean Water Act, which requires NPDES permits for discharges to surface waters. The plant provides secondary treatment, a standard level for communities of this size in the United States. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The facility has a designed capacity of 287.69 thousand cubic meters and treats an annual discharge volume of 529.96 thousand cubic meters. The treated effluent is discharged into local waterways that are part of the Mississippi River basin. The plant's operations help protect downstream water quality and aquatic habitats. As an inland facility, it does not directly impact coastal environments.

The plant discharges into tributaries of the Mississippi River, which flows into the Gulf of Mexico. This region supports diverse aquatic life and is part of a major migratory corridor for birds. The plant's secondary treatment helps reduce nutrient loads that could contribute to hypoxia in the Gulf.