Overview
WATSONTOWN BORO STP is a secondary treatment plant serving 2,255 people in Watsontown, Pennsylvania. It discharges 643.52 million gallons per year into the West Branch Susquehanna River.
WATSONTOWN BORO STP is a municipal wastewater treatment facility located in Watsontown, Northumberland County, Pennsylvania. The plant serves a population of approximately 2,255 residents and operates under the regulatory framework of the U.S. Clean Water Act, which requires secondary treatment for municipal discharges. The plant provides secondary treatment, a standard level for communities of this size in the United States. Its designed capacity is 1,249.18 million gallons per year, with an actual discharge volume of 643.52 million gallons per year, indicating operational headroom. The facility is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Pennsylvania Department of Environmental Protection. The treated effluent is discharged to the West Branch Susquehanna River, a major tributary of the Susquehanna River, which flows into the Chesapeake Bay. The plant plays a key role in protecting water quality in the Susquehanna River basin, supporting aquatic life and downstream ecosystems in the Chesapeake Bay watershed.
Environmental context
The plant discharges into the West Branch Susquehanna River, which flows into the main stem Susquehanna River and ultimately reaches the Chesapeake Bay. The Chesapeake Bay is the largest estuary in the United States and is ecologically sensitive, supporting diverse aquatic life including blue crabs, striped bass, and migratory waterfowl. Nutrient and sediment loads from upstream sources are a key concern for bay health.
Frequently asked questions
WATSONTOWN BORO STP is located on Park Street in Watsontown, Northumberland County, Pennsylvania, United States.
The plant serves a population of approximately 2,255 people in the Watsontown area.
The plant provides secondary treatment and discharges treated effluent into the West Branch Susquehanna River, which flows into the Susquehanna River and eventually the Chesapeake Bay.
The plant operates under the U.S. Clean Water Act and is regulated through the National Pollutant Discharge Elimination System (NPDES) permit program, enforced by the Pennsylvania Department of Environmental Protection.
For small communities of this size, secondary treatment is standard under the Clean Water Act. This typically involves biological treatment processes to reduce organic matter and suspended solids before discharge.
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