Moreauville STP - Secondary Wastewater Treatment in Moreauville, Louisiana

Moreauville STP is a municipal wastewater treatment facility located in Moreauville, Avoyelles Parish, Louisiana. The plant serves a small community of about 1,025 people, providing secondary treatment to meet state and federal water quality standards. As a secondary treatment plant, Moreauville STP utilizes biological processes to reduce organic matter and suspended solids. The plant has a designed capacity of 605.66 cubic meters per day and currently treats an average daily flow of 567.81 cubic meters, indicating it operates below its full capacity. Under the U.S. Clean Water Act, such facilities must comply with National Pollutant Discharge Elimination System (NPDES) permits issued by the Louisiana Department of Environmental Quality. The treated effluent is discharged into nearby bayous that drain into the Atchafalaya River, part of the larger Mississippi River Basin. The Atchafalaya Basin is the largest swamp in the United States, supporting diverse aquatic life and providing critical habitat for migratory birds and fish species. The plant's operations help protect this ecologically sensitive watershed from nutrient pollution and pathogens.

Moreauville STP discharges into local bayous that flow into the Atchafalaya River, which ultimately reaches the Gulf of Mexico via the Atchafalaya Delta. The Atchafalaya Basin is a vast floodplain swamp that supports diverse aquatic ecosystems, including fish, shellfish, and migratory waterfowl. Nutrient loading from wastewater can contribute to algal blooms and hypoxia in the Gulf, making effective treatment essential for downstream water quality.