Walnut Grove POTW: Secondary Wastewater Treatment in Walnut Grove, Mississippi

Walnut Grove POTW (Publicly Owned Treatment Works) is a municipal wastewater treatment facility located in Walnut Grove, Leake County, Mississippi. Serving a population of 636, the plant provides secondary treatment to domestic wastewater from the community. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater. With a designed capacity of 734.37 million gallons per year and an actual discharge volume of 170.34 million gallons per year, the facility has ample capacity for current flows. Treated effluent from Walnut Grove POTW is discharged into a local waterway that ultimately drains into the Pearl River basin. The Pearl River flows south through Mississippi and Louisiana before emptying into the Gulf of Mexico, supporting diverse aquatic ecosystems along its course.

Walnut Grove POTW discharges into a tributary of the Pearl River, which flows approximately 490 miles through Mississippi and Louisiana to the Gulf of Mexico. The Pearl River watershed supports a variety of fish and wildlife, including several species of freshwater mussels and the Gulf sturgeon. The plant's secondary treatment helps protect downstream water quality in this ecologically significant river system.