Bedminster Township Stonebridge STP - Pennsylvania Wastewater Treatment Plant

Bedminster Township Stonebridge STP is a municipal wastewater treatment plant located in Bedminster Township, Bucks County, Pennsylvania, United States. The plant serves a small population of 820 residents and operates under the regulatory framework of the US Clean Water Act, which requires secondary treatment for municipal facilities. As a secondary treatment plant, it provides biological treatment to remove organic matter and suspended solids, meeting the standard effluent limits set by the National Pollutant Discharge Elimination System (NPDES) program. The plant's designed capacity is 378.54 thousand cubic meters per year, with an actual discharge volume of 264.98 thousand cubic meters per year, indicating it operates below its capacity. Secondary treatment typically involves activated sludge or trickling filter systems. The plant is located inland, more than 50 km from the coast, reducing direct marine discharge risks. The treated effluent is discharged into a local water body, likely a tributary of the Delaware River, which flows into the Delaware Bay and ultimately the Atlantic Ocean. The plant plays a key role in protecting the local watershed by reducing pollutant loads before discharge, supporting aquatic life and downstream water quality in the Delaware River Basin.

The plant discharges into a local stream that is part of the Delaware River watershed. The Delaware River flows through Pennsylvania, New Jersey, and Delaware before emptying into the Delaware Bay and the Atlantic Ocean. This watershed supports diverse aquatic ecosystems, including migratory fish species such as American shad and Atlantic sturgeon. The plant's secondary treatment helps maintain water quality in the sensitive freshwater and estuarine habitats downstream.