Tinicum Township STP - Pennsylvania Wastewater Treatment Plant Serving 4,353 Residents

Tinicum Township STP is a municipal wastewater treatment plant located in Tinicum Township, Delaware County, Pennsylvania, near the Delaware River. It serves a population of approximately 4,353 residents in the Essington area, part of the Philadelphia metropolitan region. The plant is situated in a historically industrial area along the Delaware River estuary. As a small-scale facility in the United States, the plant operates under the Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all discharges. The designed capacity is 1.00 million gallons per day, indicating a facility sized for its service population. The plant's treated effluent likely discharges into the Delaware River, which flows into Delaware Bay and ultimately the Atlantic Ocean. The Delaware River estuary is a critical habitat for migratory fish such as American shad and supports diverse aquatic life. The plant's operations contribute to maintaining water quality in this ecologically important watershed.

The plant discharges into the Delaware River watershed, which drains into Delaware Bay and the Atlantic Ocean. The Delaware River estuary is a vital migratory corridor for fish and supports extensive wetlands. The area is ecologically sensitive due to its role in nutrient cycling and as a nursery for aquatic species.