RIB MOUNTAIN MSD STP - Wastewater Treatment Plant in Village of Rib Mountain, Wisconsin

RIB MOUNTAIN MSD STP is a municipal wastewater treatment plant located in the Village of Rib Mountain, Marathon County, Wisconsin. It serves a population of approximately 33,687 residents, classifying it as a medium-sized facility under state and federal guidelines. The plant is situated inland, away from coastal areas, and its operations are integral to local water quality management. As a U.S. facility, the plant operates under the Clean Water Act, with National Pollutant Discharge Elimination System (NPDES) permits issued by the Wisconsin Department of Natural Resources. For a population of this scale, secondary treatment is typically required, and the plant likely employs conventional activated sludge or similar processes to meet effluent limits. Regulatory compliance ensures proper treatment before discharge. The plant's treated effluent is discharged into a local water body, likely a tributary of the Wisconsin River, which flows into the Mississippi River and ultimately the Gulf of Mexico. This connection underscores the plant's role in protecting downstream aquatic ecosystems and maintaining water quality in the Upper Mississippi River Basin.

The plant discharges into a local stream or river within the Wisconsin River watershed, which drains into the Mississippi River and eventually the Gulf of Mexico. The receiving water body supports diverse aquatic life, including fish and macroinvertebrates, and is part of a larger basin that provides habitat for migratory birds and other wildlife. The plant's operations help reduce nutrient and pollutant loads, protecting downstream water quality in this ecologically significant region.