Overview
West Alexander STP is an advanced treatment plant serving 552 people in Donegal Township, Pennsylvania. It discharges treated wastewater into local waterways, supporting the Ohio River basin.
West Alexander STP is a wastewater treatment facility located in Donegal Township, Washington County, Pennsylvania, serving a small population of 552 residents. The plant provides advanced treatment, ensuring high-quality effluent before discharge. The plant operates under the U.S. Clean Water Act, with National Pollutant Discharge Elimination System (NPDES) permits issued by the Pennsylvania Department of Environmental Protection. For small communities, advanced treatment often targets nutrient removal to protect sensitive watersheds. Treated effluent from the plant flows into local streams that drain into the Ohio River basin, ultimately reaching the Mississippi River and the Gulf of Mexico. The plant plays a key role in protecting water quality in this region, which supports diverse aquatic life and recreational uses.
Environmental context
The plant discharges into tributaries of the Ohio River, which flows into the Mississippi River and then the Gulf of Mexico. The watershed supports diverse aquatic species and is important for regional water supply. Advanced treatment helps reduce nutrient loading, which is critical for preventing downstream eutrophication in the Gulf of Mexico dead zone.
Frequently asked questions
West Alexander STP is located at 19 Main Street, West Alexander, Donegal Township, Washington County, Pennsylvania, United States.
The plant serves a population of 552 residents in the West Alexander area of Donegal Township.
West Alexander STP provides advanced treatment, which typically includes processes for nutrient removal beyond secondary treatment.
The plant operates under the U.S. Clean Water Act, requiring an NPDES permit issued by the Pennsylvania Department of Environmental Protection. Advanced treatment helps meet stringent water quality standards.
The plant discharges into the Ohio River basin, which flows to the Mississippi River and Gulf of Mexico. Advanced treatment reduces nutrient pollution, helping to protect downstream ecosystems and the Gulf of Mexico.
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