Metamora South STP - Secondary Wastewater Treatment in Woodford County, Illinois

Metamora South STP is a municipal wastewater treatment facility located in Woodford County, Illinois, United States. The plant serves a population of approximately 2,600 residents, classifying it as a small-scale facility within the state's wastewater infrastructure. The plant provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal wastewater. With a designed capacity of 1,438.45 thousand cubic meters and an actual discharge volume of 681.37 thousand cubic meters, the facility operates below its capacity, indicating room for future growth or seasonal variability. The treated effluent is discharged into local waterways that ultimately drain into the Illinois River basin, a major tributary of the Mississippi River. The plant plays a role in protecting downstream water quality and aquatic habitats in the region.

The plant discharges into streams that flow into the Illinois River, which joins the Mississippi River and eventually reaches the Gulf of Mexico. The watershed supports diverse aquatic life and is important for regional biodiversity. The plant's secondary treatment helps reduce organic pollutants and protect the ecological health of the receiving waters.