Salem County DuPont STP_CS - Pennsville Township, New Jersey Wastewater Treatment Plant

Salem County DuPont STP_CS is a wastewater treatment plant located in Pennsville Township, Salem County, New Jersey, United States. It serves a population of approximately 18,291 people, placing it in the medium-agglomeration category. The plant is situated near the Delaware River estuary, an ecologically significant waterway that flows into Delaware Bay. As a U.S. facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permitting. The designed capacity is 1.00 million gallons per day, indicating a moderate-scale facility. The plant's discharge ultimately reaches the Delaware River, a major tidal estuary that supports diverse aquatic life and serves as a critical migratory corridor for fish and birds. The Delaware Bay downstream is a vital habitat for horseshoe crabs and shorebirds. The plant's location within 50 km of the coast underscores its role in protecting downstream coastal ecosystems from nutrient pollution and pathogens.

The plant discharges into the Delaware River, which flows into Delaware Bay and then the Atlantic Ocean. The Delaware River estuary is a nutrient-sensitive waterbody that supports diverse aquatic life, including striped bass and American shad. Downstream, Delaware Bay is a critical stopover for migratory shorebirds and a spawning ground for horseshoe crabs. The plant's treatment performance directly affects water quality in this ecologically important coastal system.