Overview
Stone County Utility Authority South Stone County WWTF serves McHenry, Mississippi, treating wastewater for approximately 5,800 residents. The plant operates under U.S. EPA and Mississippi Department of Environmental Quality regulations.
Stone County Utility Authority South Stone County WWTF is a municipal wastewater treatment facility located in McHenry, Mississippi, within Stone County. The plant serves a population of approximately 5,800 people, making it a small to medium-sized agglomeration under U.S. regulatory frameworks. As a U.S. facility, the plant 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. These permits set effluent limits to protect water quality. The plant discharges into local waterways that drain into the Gulf of Mexico via the Pascagoula River basin. This region supports diverse aquatic life and is part of the larger Gulf Coast ecosystem, which is sensitive to nutrient pollution and requires effective wastewater treatment to maintain ecological health.
Environmental context
The plant's treated effluent flows into tributaries of the Pascagoula River, which ultimately reaches the Gulf of Mexico. This coastal watershed supports estuarine habitats, including marshes and seagrass beds, that are critical for fish and bird species. Nutrient loading from wastewater can contribute to algal blooms and hypoxia in the Gulf, making effective treatment essential for downstream ecosystem health.
Frequently asked questions
The plant is located on East McHenry Road in McHenry, Mississippi, within Stone County, United States.
The plant serves approximately 5,800 residents in the McHenry area and surrounding parts of Stone County.
The plant discharges treated effluent into local waterways that are part of the Pascagoula River basin, which flows into the Gulf of Mexico.
As a U.S. facility, it operates under the Clean Water Act and is regulated by an NPDES permit issued by the Mississippi Department of Environmental Quality.
Plants of this size in Mississippi typically employ secondary treatment, such as activated sludge or lagoon systems, to meet state and federal effluent standards.
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