ELLISVILLE STATE SCHOOL Wastewater Treatment Plant, Ellisville, Mississippi

ELLISVILLE STATE SCHOOL is a municipal wastewater treatment facility located in Ellisville, Jones County, Mississippi. The plant serves a population of approximately 1,307 people, reflecting its role in managing wastewater for a small community in the southeastern United States. The facility provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal plants. Secondary treatment typically involves biological processes to remove organic matter and suspended solids. The plant has a designed capacity of 757.08 units and currently discharges 287.69 units, indicating operational capacity below its design limit. The treated effluent is discharged into local waterways that ultimately drain into the Gulf of Mexico via the Pascagoula River basin. The plant's operations are regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, which sets discharge limits to protect water quality and downstream ecosystems.

The plant discharges into the Pascagoula River watershed, which flows southward through Mississippi and into the Gulf of Mexico. This region supports diverse aquatic life, including fish and migratory birds. The Pascagoula River is one of the last free-flowing river systems in the contiguous United States, making its water quality particularly important for ecological health.