SWDCMA Baldwin Run STP - Aston Township, Pennsylvania Wastewater Treatment Plant

SWDCMA Baldwin Run STP is a municipal wastewater treatment plant located in Aston Township, Delaware County, Pennsylvania. It serves a population of about 38,244 people, placing it in the medium agglomeration category. The plant is situated inland, away from coastal areas, and its operations are governed by the US Clean Water Act. Plants of this scale in Pennsylvania typically employ secondary or advanced treatment to meet state and federal standards. The designed capacity is 1.00 million gallons per day, indicating a facility sized for the community's needs. Regulatory oversight is provided by the Pennsylvania Department of Environmental Protection under the National Pollutant Discharge Elimination System (NPDES) program. The plant discharges treated effluent into local waterways that ultimately drain into the Delaware River watershed. The Delaware River is a major ecological and economic resource, supporting diverse aquatic life and providing drinking water for millions. The plant's operations contribute to protecting water quality in this important basin.

The plant discharges into tributaries of the Delaware River, which flows into the Delaware Bay and then the Atlantic Ocean. The Delaware River watershed supports a variety of fish species, including American shad and striped bass, and is a critical migratory corridor. Protecting water quality in this system is essential for both ecological health and downstream communities.