Hampton Township Allison Park STP - Pennsylvania Wastewater Treatment Plant

Hampton Township Allison Park STP is a municipal wastewater treatment facility located in Allison Park, Pennsylvania, serving a population of approximately 9,815 residents. The plant is situated in Allegheny County and operates as part of the region's wastewater infrastructure. As a US facility, the plant operates under the Clean Water Act and is regulated through the National Pollutant Discharge Elimination System (NPDES) permit program. For a plant serving this population size, secondary treatment is typically required, with additional nutrient controls possible depending on the receiving water body's sensitivity. The plant discharges treated effluent into local streams that drain into the Ohio River basin, ultimately reaching the Mississippi River and the Gulf of Mexico. This watershed supports diverse aquatic life and provides drinking water for downstream communities.

The plant's discharge enters local tributaries of the Ohio River, which flows into the Mississippi River and then to the Gulf of Mexico. This watershed supports a variety of fish and wildlife species and is an important resource for recreation and water supply. Nutrient management is critical to prevent algal blooms in downstream waters.