Port Edwards WWTP - Wisconsin Wastewater Treatment Plant Serving 1,818 Residents

Port Edwards WWTP is a municipal wastewater treatment facility located in Port Edwards, Wisconsin, serving a population of approximately 1,818 residents. The plant is situated near the Wisconsin River in Wood County, within the Central Wisconsin Applied Research & Business Park area. As a US-based facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permitting requirements. For small agglomerations serving under 10,000 people, secondary treatment is typically required to meet effluent limits for biochemical oxygen demand and total suspended solids. The plant discharges treated effluent into the Wisconsin River, which flows southward to join the Mississippi River near Prairie du Chien. This river system supports diverse aquatic life and is an important migratory corridor for fish and waterfowl. The plant's location inland and upstream of sensitive ecosystems underscores the importance of proper treatment to protect water quality.

The Wisconsin River flows through central Wisconsin, eventually joining the Mississippi River. This watershed supports diverse aquatic habitats, including wetlands and floodplains that provide critical ecosystem services. The plant's discharge contributes to the river's flow, and maintaining water quality is essential for downstream communities and wildlife. The region's coldwater streams and lakes are sensitive to nutrient pollution, making effective wastewater treatment important for ecological health.