Grosse Tete STP - Secondary Wastewater Treatment in Grosse Tete, Louisiana

Grosse Tete STP is a municipal wastewater treatment facility located in Grosse Tete, Iberville Parish, Louisiana. The plant serves a small population of 541 residents, reflecting the rural character of the community. It operates under the regulatory framework of the U.S. Clean Water Act, which requires secondary treatment for municipal discharges. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 189.27 cubic meters per day and a discharge volume matching that figure, the facility operates at full capacity. As a small-scale plant, it is subject to EPA National Pollutant Discharge Elimination System (NPDES) permitting, administered by the Louisiana Department of Environmental Quality. The treated effluent is discharged into local waterways that drain into the Lower Mississippi River basin. The Mississippi River ultimately flows into the Gulf of Mexico, a large marine ecosystem that supports fisheries and coastal habitats. The plant's discharge contributes to the nutrient load in the basin, which is a concern for downstream hypoxia in the Gulf.

The plant discharges into the Lower Mississippi River basin, which drains into the Gulf of Mexico. The Mississippi River carries nutrients and sediments that affect coastal water quality and contribute to seasonal hypoxic zones. The surrounding area includes wetlands and bayous that provide habitat for fish, birds, and other wildlife.