Marinette WWTP - Municipal Wastewater Treatment in Marinette, Wisconsin

Marinette WWTP is a municipal wastewater treatment facility located in Marinette, Wisconsin, serving a population of about 11,749. The plant is situated near the Menominee River, which forms the border between Wisconsin and Michigan. As a medium-sized agglomeration, the plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater. The National Pollutant Discharge Elimination System (NPDES) permit program governs its discharge, ensuring compliance with water quality standards. The plant's designed capacity is 1.00 million gallons per day, indicating it is sized to handle the community's wastewater flows. The treated effluent is discharged into the Menominee River, which flows approximately 20 miles south to Green Bay, an arm of Lake Michigan. This water body supports diverse aquatic life, including fish species such as walleye and smallmouth bass, and is an important recreational and ecological resource. The plant's operations are critical to protecting the water quality of the Menominee River and downstream Lake Michigan ecosystem.

The Marinette WWTP discharges into the Menominee River, which flows into Green Bay and ultimately Lake Michigan. This watershed supports a variety of fish and wildlife, including migratory birds and aquatic species. The river is ecologically sensitive due to its role in the larger Great Lakes basin, and maintaining water quality is essential for recreational use and habitat preservation.