SIMSBORO STP - Advanced Wastewater Treatment in Simsboro, Louisiana

SIMSBORO STP is a municipal wastewater treatment facility located on Best Road in Simsboro, Lincoln Parish, Louisiana. The plant serves a small population of 684 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 discharges. The plant provides advanced treatment, which goes beyond secondary treatment to remove nutrients and other pollutants. Advanced treatment is typical for facilities discharging to sensitive water bodies or where higher effluent quality is required. The plant's designed capacity is 242.27 thousand cubic meters, and it treats an annual discharge volume of 264.98 thousand cubic meters. The treated effluent is discharged into a local water body that ultimately drains into the Ouachita River basin, part of the larger Mississippi River watershed. This region supports diverse aquatic life and provides drinking water for downstream communities. The plant's advanced treatment helps protect water quality in this ecologically important river system.

The plant discharges into a tributary of the Ouachita River, which flows into the Mississippi River and eventually the Gulf of Mexico. The Ouachita River basin supports a variety of fish and wildlife, including several species of freshwater mussels and migratory birds. Advanced treatment at this plant helps reduce nutrient loading, which is critical for preventing hypoxia in the Gulf of Mexico.