Overview
STILWELL ADA WWT serves Stilwell, Oklahoma, treating wastewater for approximately 3,276 residents. The plant operates under the US Clean Water Act framework, with NPDES permitting through the Oklahoma Department of Environmental Quality.
STILWELL ADA WWT is a municipal wastewater treatment plant located in Stilwell, Adair County, Oklahoma. Serving a population of around 3,276, the facility is part of the region's infrastructure for managing domestic wastewater in a rural setting. The plant's location on Cemetery Road places it within the Ozark Highlands ecoregion, characterized by forested hills and spring-fed streams. As a US facility, the plant operates under the Clean Water Act, administered by the Oklahoma Department of Environmental Quality. The National Pollutant Discharge Elimination System (NPDES) permit program sets discharge limits to protect water quality. The plant's treated effluent likely discharges to a local stream within the Arkansas River basin, ultimately reaching the Mississippi River and the Gulf of Mexico. The receiving waters support aquatic life and are used for recreation and agriculture. Proper treatment is essential to prevent nutrient pollution and protect downstream ecosystems, including the Illinois River and Tenkiller Ferry Lake, which are valued for fishing and tourism.
Environmental context
The plant's discharge enters a tributary of the Arkansas River system, which flows into the Mississippi River and then the Gulf of Mexico. The local watershed includes the Baron Fork of the Illinois River, a scenic river known for its biodiversity and recreational use. Downstream, Tenkiller Ferry Lake is a major reservoir supporting fisheries and water supply. Protecting these waters from nutrient enrichment and pathogens is critical for maintaining ecological health and regional water quality.
Frequently asked questions
STILWELL ADA WWT is located at 82127 Cemetery Road, Stilwell, Adair County, Oklahoma, United States.
The plant serves approximately 3,276 residents in the Stilwell area.
The plant discharges treated effluent to a local stream within the Arkansas River basin, which flows to the Mississippi River and the Gulf of Mexico.
The plant operates under the US Clean Water Act, with NPDES permits issued by the Oklahoma Department of Environmental Quality, setting discharge limits to protect water quality.
Small wastewater plants in Oklahoma commonly use lagoon systems or activated sludge processes to achieve secondary treatment, meeting state and federal standards for BOD and TSS removal.
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