Grambling STP | Wastewater Treatment Plant in Grambling, Louisiana

Grambling STP is a municipal wastewater treatment plant located in Grambling, Lincoln Parish, Louisiana. Serving a population of around 16,847, the facility is part of the region's infrastructure for managing domestic wastewater from the community and surrounding areas. Under the US Clean Water Act, municipal treatment plants of this scale are typically required to provide secondary treatment to meet National Pollutant Discharge Elimination System (NPDES) permit limits. The plant's operations are regulated to protect water quality in the receiving environment. The plant discharges treated effluent into local waterways that ultimately drain into the Gulf of Mexico via the Red River and Mississippi River systems. This downstream connection highlights the importance of effective treatment in maintaining the ecological health of the region's aquatic habitats.

The treated effluent from Grambling STP flows into local streams and rivers that are part of the Red River basin, which eventually reaches the Mississippi River and the Gulf of Mexico. This watershed supports diverse aquatic life and provides critical habitat for fish and migratory birds. Effective wastewater treatment is essential to prevent nutrient pollution and protect downstream ecosystems.