Shumway Waste Treatment Plant - Secondary Treatment Facility in Shumway, Illinois

Shumway Waste Treatment Plant is a municipal wastewater facility located in Shumway, a small village in Effingham County, Illinois. The plant serves a population of 266, reflecting its role in a rural community. As a secondary treatment plant, it provides biological treatment to reduce organic matter and suspended solids before discharge. The plant operates under the U.S. Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all wastewater discharges. For small communities like Shumway, secondary treatment is the standard requirement, ensuring compliance with federal water quality standards. The plant's designed capacity of 102.21 units and current discharge volume of 83.28 units indicate it operates below capacity. The treated effluent is discharged into a local waterway that ultimately drains into the Mississippi River Basin. The plant's location in inland Illinois means its discharge contributes to the health of downstream aquatic ecosystems, including the Mississippi River and the Gulf of Mexico. Proper treatment helps prevent nutrient pollution and protects biodiversity in these waters.

The plant's discharge enters a tributary of the Kaskaskia River, which flows into the Mississippi River and eventually the Gulf of Mexico. The Mississippi River Basin supports diverse aquatic life and is a critical migratory corridor for birds and fish. Nutrient loading from wastewater can contribute to hypoxia in the Gulf, making effective treatment essential for downstream ecosystem health.