Rib Lake STP - Advanced Wastewater Treatment in Rib Lake, Wisconsin

Rib Lake STP is a municipal wastewater treatment facility located in Rib Lake, Taylor County, Wisconsin. Serving a population of 910, the plant is part of the community's essential infrastructure for managing domestic wastewater. The plant employs advanced treatment processes, ensuring a high level of pollutant removal before discharge. With a designed capacity of 757.08 cubic meters per day and an average discharge volume of 397.47 cubic meters per day, the facility operates well within its capacity. As a US-based plant, it operates under the Clean Water Act, with National Pollutant Discharge Elimination System (NPDES) permits issued by the Wisconsin Department of Natural Resources, which set strict effluent limits to protect water quality. The treated effluent is discharged into local streams that flow into the Flambeau River, part of the Chippewa River watershed, ultimately reaching the Mississippi River and the Gulf of Mexico. The plant's advanced treatment helps protect downstream aquatic ecosystems and supports the ecological health of the region's waterways.

The plant discharges into local tributaries of the Flambeau River, which flows into the Chippewa River and then the Mississippi River, eventually reaching the Gulf of Mexico. This watershed supports diverse aquatic life, including fish species such as walleye and smallmouth bass, and provides habitat for migratory birds. The advanced treatment helps minimize nutrient loading and protects downstream water quality in this ecologically sensitive region.