Sour Lake WWTP - Advanced Wastewater Treatment in Sour Lake, Texas

Sour Lake WWTP is a municipal wastewater treatment facility located on West Barkley Street in Sour Lake, Hardin County, Texas. The plant serves a population of approximately 1,750 people, classifying it as a small-scale treatment facility within the region. The plant provides advanced treatment, which goes beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 1,741.28 thousand cubic meters per year and an actual discharge volume of 946.35 thousand cubic meters per year, the facility operates under the regulatory framework of the US Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all point source discharges. The treated effluent is discharged into local waterways that ultimately drain into the Neches River basin and then into Sabine Lake, an estuary on the Gulf Coast of Texas. The plant's advanced treatment helps protect downstream aquatic ecosystems and supports water quality in the region.

The plant's discharge flows into local streams that are part of the Neches River watershed, which drains into Sabine Lake, a brackish estuary on the Texas Gulf Coast. This estuary supports diverse aquatic life, including fish and shellfish, and serves as an important habitat for migratory birds. Advanced treatment at the plant helps reduce nutrient loading, which is critical for preventing eutrophication in the sensitive coastal environment.