Overview
Unity Township Pleasant Unity STP serves 4,407 people in Unity Township, Pennsylvania. The plant operates under the US Clean Water Act NPDES program, treating wastewater for this inland community.
Unity Township Pleasant Unity STP is a wastewater treatment facility located in Unity Township, Westmoreland County, Pennsylvania. Serving a population of approximately 4,407, this plant is part of the municipal infrastructure for the local community in the Laurel Highlands region. As a US facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Pennsylvania Department of Environmental Protection. For a plant serving this population size, secondary treatment is typically required, with possible additional nutrient removal depending on the receiving water body's sensitivity. The plant discharges to local streams that are part of the Ohio River watershed, ultimately draining to the Mississippi River and the Gulf of Mexico. The region's streams support diverse aquatic life and are important for recreational fishing and water quality.
Environmental context
The plant discharges into tributaries of the Ohio River basin, which flows into the Mississippi River and then the Gulf of Mexico. The local watershed in Westmoreland County includes streams that support coldwater and warmwater fisheries, with species such as trout and smallmouth bass. The area's karst geology can make groundwater particularly sensitive to contamination, emphasizing the importance of proper treatment.
Frequently asked questions
The plant is located in Unity Township, Westmoreland County, Pennsylvania, near the community of Pleasant Unity.
The plant serves approximately 4,407 people in the Unity Township area.
The plant discharges treated effluent to local streams within the Ohio River watershed, which ultimately flows to the Mississippi River and the Gulf of Mexico.
As a US facility, it operates under the Clean Water Act and is regulated by an NPDES permit issued by the Pennsylvania Department of Environmental Protection.
Plants of this size in Pennsylvania typically provide secondary treatment, which includes biological processes to remove organic matter and suspended solids. Some may also include disinfection and nutrient removal depending on permit requirements.
Nearby plants