East Central Harrison Co PUD Wastewater Treatment Plant, Harrison County, Mississippi

East Central Harrison Co PUD is a municipal wastewater treatment facility located in Harrison County, Mississippi, United States. The plant serves a small population of 519 residents, reflecting its role in a rural or suburban community within the county. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 132.49 units and a current discharge volume of 113.56 units, the facility operates below its maximum capacity. As a US-based plant, it operates under the Clean Water Act and is subject to 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 Gulf of Mexico via the Mississippi Sound. This coastal watershed supports diverse aquatic life, including estuarine species, and the plant's advanced treatment helps protect downstream water quality in this ecologically sensitive region.

The plant discharges into local streams that flow into the Mississippi Sound and ultimately the Gulf of Mexico. This coastal watershed supports estuarine habitats, including seagrass beds and oyster reefs, which are sensitive to nutrient pollution. Advanced treatment at this facility reduces nitrogen and phosphorus loads, helping to mitigate hypoxia and algal blooms in the Gulf.