Metcalfe POTW - Advanced Wastewater Treatment in Metcalfe, Mississippi

Metcalfe POTW is a publicly owned treatment works located in Metcalfe, Washington County, Mississippi. The plant serves a small population of 1,090 residents and operates with a designed capacity of 567.81 thousand gallons per day. The facility provides advanced treatment, which goes beyond secondary treatment to remove nutrients and other pollutants. Under the U.S. Clean Water Act, such plants must comply with National Pollutant Discharge Elimination System (NPDES) permits issued by the Mississippi Department of Environmental Quality, ensuring effluent meets water quality standards. The treated effluent is discharged into a receiving water body within the Mississippi River basin, which ultimately drains to the Gulf of Mexico. The plant plays a role in protecting downstream aquatic ecosystems and contributing to regional water quality management in the Mississippi Delta region.

The plant discharges into a tributary of the Mississippi River, which flows into the Gulf of Mexico. The Mississippi River basin supports diverse aquatic life and is a critical migratory corridor for birds and fish. The advanced treatment helps reduce nutrient loading, which is important for mitigating hypoxia in the Gulf of Mexico.