Woodville STP - Secondary Wastewater Treatment Plant in Woodville, Wisconsin

Woodville STP is a municipal wastewater treatment facility located in Woodville, a village in Saint Croix County, Wisconsin, United States. The plant serves a population of approximately 1,354 people, reflecting its role in a small community. It is situated near Interstate 94 in the Town of Eau Galle. The plant provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal wastewater facilities. Under the National Pollutant Discharge Elimination System (NPDES) permit program, plants of this scale must meet effluent limits to protect water quality. The designed capacity of 1,514.16 thousand gallons per day indicates the plant's ability to handle peak flows, while the current discharge volume of 465.61 thousand gallons per day suggests operational headroom. The treated effluent is discharged into a local water body, likely a tributary of the Mississippi River basin, as the area drains toward the Mississippi River and ultimately the Gulf of Mexico. The plant's operation helps maintain the ecological health of downstream waters by reducing pollutant loads from the community.

Woodville STP discharges into a receiving water body within the Mississippi River basin, which flows south to the Gulf of Mexico. The local watershed includes streams and rivers that support diverse aquatic life, including fish and macroinvertebrates. The plant's secondary treatment reduces organic matter and suspended solids, helping to protect downstream water quality in this agriculturally influenced region of western Wisconsin.