GRACE POTW - Secondary Wastewater Treatment in Grace, Mississippi

GRACE POTW is a publicly owned treatment works located in Grace, Issaquena County, Mississippi, serving a small population of 252 residents. The plant provides secondary treatment, a standard level for small communities in the United States, ensuring removal of organic matter and suspended solids before discharge. As a facility operating under the U.S. Clean Water Act, GRACE POTW is subject to National Pollutant Discharge Elimination System (NPDES) permitting, which sets effluent limits to protect water quality. The plant's designed capacity of 75.71 units matches its current discharge volume, indicating full utilization of its treatment capacity. The treated effluent from GRACE POTW is discharged into local waterways that ultimately drain into the Mississippi River basin. The plant's inland location, over 50 km from the coast, reduces direct marine impact, but its discharge contributes to the overall water quality of the Mississippi River system, which supports diverse aquatic life and provides drinking water for downstream communities.

GRACE POTW discharges into the Mississippi River basin, a major watershed that drains a large portion of the central United States. The receiving waters eventually flow into the Gulf of Mexico, where nutrient loading from upstream sources can contribute to hypoxic zones. The plant's secondary treatment helps reduce organic pollutants, but its small scale limits regional nutrient impacts.