Dry Prong WWTP - Advanced Wastewater Treatment in Dry Prong, Louisiana

Dry Prong WWTP is a municipal wastewater treatment facility located in Dry Prong, Grant Parish, Louisiana. Serving a population of approximately 1,488, the plant is designed to handle a capacity of 529.96 thousand cubic meters per year, with an annual discharge volume of 287.69 thousand cubic meters. The plant employs advanced treatment processes, exceeding the secondary treatment standard required by the US Clean Water Act. As a facility in a small community, it operates under the National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits to protect water quality. The treated effluent is discharged into local waterways that drain into the Red River basin, eventually reaching the Mississippi River and the Gulf of Mexico. The plant's advanced treatment helps reduce nutrient loads and protect downstream aquatic ecosystems in this ecologically sensitive region.

The plant discharges into tributaries of the Red River, which flows into the Mississippi River and ultimately the Gulf of Mexico. This watershed supports diverse aquatic life and is important for migratory fish species. Advanced treatment at this facility helps minimize nutrient enrichment and protect downstream water quality in the Gulf's hypoxic zone.