Wyeville STP - Secondary Wastewater Treatment Plant in Wyeville, Wisconsin

Wyeville STP is a municipal wastewater treatment facility located in Wyeville, Wisconsin, United States. The plant serves a small population of 141 residents, reflecting its role in a rural community. It operates under the regulatory framework of the U.S. Clean Water Act, which governs wastewater discharges through the National Pollutant Discharge Elimination System (NPDES) permit program. The plant provides secondary treatment, a standard level required for most municipal facilities in the United States. Its designed capacity is 68.14 m³/day, and it currently treats an average of 37.85 m³/day, indicating operational headroom. As a small-scale facility, it is subject to state-level oversight by the Wisconsin Department of Natural Resources, which issues permits to ensure compliance with water quality standards. The treated effluent is discharged into a local waterway that ultimately drains into the Mississippi River Basin. The plant's location in inland Wisconsin means its discharge contributes to the health of regional streams and rivers. Proper treatment helps protect downstream aquatic ecosystems and supports the ecological integrity of the broader watershed.

Wyeville STP discharges into a local tributary within the Mississippi River Basin, which flows into the Mississippi River and eventually the Gulf of Mexico. The plant's secondary treatment reduces organic pollutants and suspended solids, helping to maintain water quality in the receiving stream. The surrounding area includes agricultural and forested lands, and the plant's operations support the ecological health of the region's freshwater habitats.