Nelson Township STP - Advanced Wastewater Treatment in Nelson Township, Pennsylvania

Nelson Township STP (Sewage Treatment Plant) is a municipal facility located in Nelson Township, Tioga County, Pennsylvania, United States. The plant serves a small population of 388 residents, providing advanced treatment to protect local water quality. The plant employs advanced treatment processes, exceeding the secondary treatment baseline required by the US Clean Water Act. With a designed capacity of 227.12 megaliters and an annual discharge volume of 151.42 megaliters, it operates under the National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits to safeguard receiving waters. The treated effluent is discharged into a local waterway within the Susquehanna River basin, which ultimately drains into the Chesapeake Bay. The plant's advanced treatment helps reduce nutrient and pollutant loads, supporting the ecological health of the Chesapeake Bay watershed, a vital estuary system.

The plant discharges into a tributary of the Susquehanna River, which flows into the Chesapeake Bay, the largest estuary in the United States. The Chesapeake Bay watershed supports diverse aquatic life, including fish, crabs, and migratory birds. Advanced treatment at this plant helps reduce nitrogen and phosphorus loads, mitigating eutrophication risks in the bay.