Ringgold South Plant - Advanced Wastewater Treatment in Bienville Parish, Louisiana

Ringgold South Plant is an advanced wastewater treatment facility located in Bienville Parish, Louisiana, United States. It serves a small population of 956 residents, providing essential sanitation services to the local community. The plant is situated inland, away from coastal areas, and operates under the regulatory framework of the US Clean Water Act. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 492.10 million liters per day and a current discharge volume of 454.25 million liters per day, it operates at a high utilization rate. As a US facility, it is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Louisiana Department of Environmental Quality, ensuring compliance with water quality standards. The treated effluent from Ringgold South Plant is discharged into local waterways that ultimately drain into the Red River Basin, a major tributary of the Mississippi River. The Mississippi River flows into the Gulf of Mexico, making the plant's operations important for downstream water quality. Advanced treatment helps reduce nutrient loading, which is critical for mitigating hypoxia in the Gulf of Mexico.

Ringgold South Plant discharges into local streams that are part of the Red River Basin, which flows into the Mississippi River and eventually the Gulf of Mexico. The Gulf of Mexico experiences seasonal hypoxic zones, largely driven by nutrient pollution from upstream sources. Advanced treatment at this plant helps reduce nitrogen and phosphorus loads, supporting efforts to protect downstream aquatic ecosystems and fisheries.