Oppelo WWTP - Advanced Wastewater Treatment in Conway County, Arkansas

Oppelo WWTP is a municipal wastewater treatment plant located in Conway County, Arkansas, United States. The facility serves a small community of approximately 781 residents, providing advanced treatment to protect local water quality. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 378.54 megaliters and an annual discharge volume of 132.49 megaliters, the plant operates well below its capacity, indicating room for future growth. As a US facility, it operates under the Clean Water Act, with National Pollutant Discharge Elimination System (NPDES) permits issued by the Arkansas Department of Energy and Environment. The treated effluent is discharged into a local waterway that ultimately drains into the Arkansas River, a major tributary of the Mississippi River. The plant's advanced treatment helps protect downstream aquatic ecosystems and supports the ecological health of the Arkansas River basin.

The plant discharges into a local stream that flows into the Arkansas River, which eventually joins the Mississippi River and drains into the Gulf of Mexico. The Arkansas River supports diverse aquatic life and is an important migratory corridor for fish species. Advanced treatment at Oppelo WWTP helps reduce nutrient loading, which is critical for preventing hypoxia in the Gulf of Mexico.