HCWandSWMD D IBERVILLE POTW - D'Iberville, Mississippi Wastewater Treatment Plant

HCWandSWMD D IBERVILLE POTW is a municipal wastewater treatment plant located in D'Iberville, Harrison County, Mississippi. It serves a population of approximately 6,566 people, classifying it as a small to medium-sized facility within the region. The plant is situated near the Gulf Coast, within 50 kilometers of the coastline, and its operations are subject to federal and state environmental regulations. As a U.S. facility, the plant operates under the National Pollutant Discharge Elimination System (NPDES) permit program, established by the Clean Water Act. This regulatory framework requires treatment plants to meet specific effluent limits to protect water quality. Plants of this scale typically employ secondary treatment as a minimum standard, which includes biological processes to reduce organic matter and suspended solids. The plant's treated effluent is discharged into local waterways that ultimately drain into the Gulf of Mexico. The Mississippi coastal region supports diverse aquatic ecosystems, including estuarine habitats that are critical for fish and shellfish. Proper wastewater treatment is essential to prevent nutrient pollution and protect these sensitive environments from eutrophication and harmful algal blooms.

The plant discharges into the Biloxi Bay watershed, which flows into the Mississippi Sound and ultimately the Gulf of Mexico. This coastal ecosystem supports important fisheries, including shrimp, oysters, and finfish, and provides habitat for migratory birds. Nutrient loading from wastewater can contribute to hypoxia and algal blooms in the Gulf, making effective treatment crucial for maintaining water quality and ecological health.