STATE LINE POTW - Wastewater Treatment Plant in State Line, Mississippi

STATE LINE POTW is a municipal wastewater treatment plant located in State Line, Mississippi, a small town in Wayne County. The facility serves a population of approximately 1,125 residents, providing essential sanitation services to the community. The plant operates with secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal wastewater facilities. The designed capacity is 567.81 volume units, with an average daily discharge of 389.90 volume units, indicating the plant operates below its design capacity. The treated effluent is discharged into local receiving waters that ultimately drain into the Pascagoula River basin, which flows into the Gulf of Mexico. This contributes to the protection of downstream aquatic ecosystems and water quality in the region.

The plant's discharge enters local streams that are part of the Pascagoula River watershed, one of the largest free-flowing river systems in the contiguous United States. The Pascagoula River supports diverse aquatic life, including several species of freshwater mussels and fish. The river ultimately empties into the Gulf of Mexico, a vital marine ecosystem. The plant's secondary treatment helps reduce nutrient and pollutant loads, protecting both freshwater and coastal environments.