North Freedom STP - Secondary Wastewater Treatment Plant in North Freedom, Wisconsin

North Freedom STP is a municipal wastewater treatment facility located in North Freedom, Sauk County, Wisconsin, United States. The plant serves a small population of 701 residents, providing essential sanitation services to this rural community. The plant operates at the secondary treatment level, which is standard for small agglomerations under the US Clean Water Act. With a designed capacity of 264.98 and a discharge volume of 189.27, the facility is operating below its capacity. As a US plant, it is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Wisconsin Department of Natural Resources, ensuring compliance with federal water quality standards. The treated effluent from North Freedom STP is discharged into local streams that are part of the Wisconsin River basin, ultimately draining into the Mississippi River. This contributes to the ecological health of downstream aquatic habitats, supporting diverse fish and wildlife populations in the region.

The plant's discharge enters small tributaries within the Wisconsin River watershed, which flows into the Mississippi River and eventually the Gulf of Mexico. This inland location supports a mix of agricultural and natural landscapes, with the receiving waters providing habitat for native fish species and migratory birds. The secondary treatment helps reduce nutrient loads, protecting downstream water quality.