NETTLETON POTW - Advanced Wastewater Treatment in Saltillo, Mississippi

NETTLETON POTW is a publicly owned treatment works located in Saltillo, Lee County, Mississippi, serving a population of approximately 2,013 residents. The plant is situated inland, away from coastal areas, and operates as part of the region's municipal wastewater infrastructure. The facility employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 1,892.70 units and an average daily discharge of 897.14 units, the plant operates well below its capacity, indicating room for future growth. Under the U.S. Clean Water Act, such facilities are regulated through National Pollutant Discharge Elimination System (NPDES) permits issued by the Mississippi Department of Environmental Quality. The treated effluent is discharged into local waterways that ultimately drain into the Tombigbee River basin, which flows south to the Mobile River and into the Mobile Bay estuary. This watershed supports diverse aquatic life and is an important ecological corridor in the southeastern United States.

The plant discharges into receiving waters that are part of the Tombigbee River basin, which flows into the Mobile River and eventually reaches Mobile Bay on the Gulf of Mexico. This watershed supports a variety of fish and wildlife species, including several that are ecologically sensitive. The advanced treatment helps protect downstream water quality and aquatic habitats.