South Mansfield WWSS - Advanced Wastewater Treatment in South Mansfield, Louisiana

South Mansfield WWSS is a municipal wastewater treatment facility located at 539 Albert Lewis Way in South Mansfield, DeSoto Parish, Louisiana. The plant serves a small population of 407 residents, reflecting the rural character of the area. It operates under the regulatory framework of the United States Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all point source discharges. The plant provides advanced treatment, which goes beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 473.18 megaliters per year and a discharge volume matching that figure, the facility operates at full capacity. Advanced treatment is typical for plants discharging into sensitive water bodies or where stringent effluent limits apply. The treated effluent is discharged into a local water body that ultimately drains into the Red River basin, which flows into the Mississippi River and then the Gulf of Mexico. The plant's location more than 10 km from the coast reduces direct marine impact, but its discharge contributes to the overall water quality of the Red River watershed, which supports diverse aquatic life and is an important ecological corridor in the region.

The plant discharges into a local water body within the Red River basin, which flows southward through Louisiana to the Mississippi River and eventually the Gulf of Mexico. The Red River watershed supports a variety of fish and wildlife, including several species of freshwater mussels and migratory birds. The advanced treatment provided by the plant helps protect downstream water quality in this ecologically sensitive river system.