Overview
South Kingstown Reg STP serves Narragansett, Rhode Island, treating wastewater for approximately 34,378 people. The plant operates under the US Clean Water Act and EPA NPDES permitting framework.
South Kingstown Regional Sewage Treatment Plant (STP) is a municipal wastewater facility located in Narragansett, Rhode Island, serving the South County region. The plant treats wastewater from an estimated population of 34,378, placing it in the medium-agglomeration category for US facilities. The plant operates under the US Clean Water Act, which requires secondary treatment as a minimum standard for municipal wastewater plants. Facilities of this scale in Rhode Island are typically permitted through the Rhode Island Department of Environmental Management under the EPA's National Pollutant Discharge Elimination System (NPDES) program. The plant discharges treated effluent into the local watershed, which ultimately drains into Narragansett Bay, a major estuary on the Atlantic coast. The bay supports diverse aquatic life, including shellfish beds and finfish populations, and is an important ecological and recreational resource for the region.
Environmental context
The plant's treated effluent flows into the Narragansett Bay watershed, a large estuary that connects to Rhode Island Sound and the Atlantic Ocean. The bay is ecologically sensitive, supporting shellfish habitats, migratory fish runs, and extensive salt marshes. Nutrient loading from wastewater discharges is a key concern in this region, as it can contribute to algal blooms and hypoxia in the bay's waters.
Frequently asked questions
The plant is located on Westmoreland Street East in Narragansett, Rhode Island, within South County. It serves the Narragansett area and surrounding communities.
The plant serves approximately 34,378 people, classifying it as a medium-sized municipal wastewater treatment facility in the United States.
The plant discharges treated effluent into the local watershed, which drains into Narragansett Bay, a major estuary that flows into Rhode Island Sound and the Atlantic Ocean.
The plant operates under the US Clean Water Act, with permits issued through the EPA's National Pollutant Discharge Elimination System (NPDES). The Rhode Island Department of Environmental Management typically administers these permits.
Under the Clean Water Act, municipal plants of this scale are required to provide at least secondary treatment, which removes about 85% of organic matter and suspended solids. Many facilities also incorporate advanced treatment for nutrient removal to protect sensitive water bodies like Narragansett Bay.
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