Desoto County Reg Utility Auth Johnson Creek POTW - Walls, Mississippi Wastewater Treatment

Desoto County Reg Utility Auth Johnson Creek POTW is a municipal wastewater treatment plant located in Walls, DeSoto County, Mississippi. It serves a population of about 5,645 people, classifying it as a small to medium facility under US EPA guidelines. The plant is situated near the Mississippi River delta region, an area characterized by flat terrain and a humid subtropical climate. As a US facility, the plant operates under the National Pollutant Discharge Elimination System (NPDES) permit program, which is part of the Clean Water Act. This regulatory framework requires permits for any discharge of pollutants into waters of the United States. The plant's treated effluent likely discharges into a local waterway that eventually flows into the Mississippi River, one of the largest river systems in North America. The Mississippi River watershed supports diverse aquatic life and provides drinking water for millions. Downstream, the river empties into the Gulf of Mexico, where nutrient pollution from upstream sources can contribute to hypoxic zones. The plant's operations are therefore part of a larger regional water quality management effort.

The plant is located in the Mississippi River basin, with treated effluent likely entering a tributary of the Mississippi River. The Mississippi River flows southward through the Mississippi Alluvial Plain and discharges into the Gulf of Mexico. This watershed supports a wide range of aquatic species and is an important migratory corridor for birds. Nutrient loading from wastewater and agricultural runoff in the region can contribute to seasonal hypoxia in the Gulf, making effective treatment critical for downstream ecosystem health.