ISOLA POTW - Secondary Wastewater Treatment Plant in Isola, Mississippi

ISOLA POTW is a municipal wastewater treatment plant located in Isola, Mississippi, serving a small community of 910 residents. The plant provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for most municipal facilities to reduce organic matter and suspended solids before discharge. The plant has a designed capacity of 492.10 and currently discharges an average volume of 340.69, indicating it operates below its full capacity. As a facility in the United States, it operates under the National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits to protect water quality. The treated effluent from ISOLA POTW is discharged into local waterways that ultimately drain into the Mississippi River basin. The plant plays a key role in protecting the region's water resources by reducing pollutant loads before discharge, supporting downstream aquatic life and water quality in the Mississippi River watershed.

The plant discharges into local streams that flow into the Mississippi River, one of the largest river systems in North America. The Mississippi River supports diverse aquatic ecosystems and provides drinking water for millions. The plant's secondary treatment helps reduce nutrient and organic pollution, mitigating impacts on downstream habitats and the Gulf of Mexico, where nutrient runoff contributes to hypoxic zones.