EWING WWTP - Secondary Wastewater Treatment in Ewing, Missouri

EWING WWTP is a municipal wastewater treatment facility located in Ewing, Lewis County, Missouri. The plant serves a small population of 464 residents, providing secondary treatment to meet local environmental standards. As a small-scale facility, it plays a key role in managing wastewater for this rural community. The plant operates with secondary treatment, which involves biological processes to remove organic matter and suspended solids. It has a designed capacity of 227.12 million gallons per year and currently discharges 162.77 million gallons per year, indicating it operates below capacity. Under the U.S. Clean Water Act, such facilities are typically regulated through National Pollutant Discharge Elimination System (NPDES) permits issued by the Missouri Department of Natural Resources, ensuring compliance with water quality standards. The treated effluent is discharged into a local water body, likely a tributary of the Mississippi River basin. The Mississippi River system supports diverse aquatic life and provides drinking water for millions downstream. Proper treatment at plants like EWING WWTP helps protect water quality in this major watershed.

The plant discharges into a local stream that flows into the Mississippi River basin. The Mississippi River is a major ecological corridor supporting diverse fish, bird, and plant species. Downstream, the river drains into the Gulf of Mexico, where nutrient pollution from wastewater can contribute to hypoxic zones. Effective secondary treatment helps reduce organic and nutrient loads, protecting aquatic habitats and water quality.