Fredericksburg Monroe Valley STP - Advanced Wastewater Treatment in Union Township, Pennsylvania

Fredericksburg Monroe Valley STP is a wastewater treatment facility located in Union Township, Lebanon County, Pennsylvania. It serves a small population of 445 residents, providing advanced treatment to protect local water quality. The plant is situated inland, away from coastal areas, and operates under the regulatory framework of the United States Clean Water Act. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 189.27 cubic meters per day and a current discharge volume of 170.34 cubic meters per day, it operates efficiently. As a small facility, it is subject to EPA NPDES permitting requirements, ensuring compliance with discharge limits. The treated effluent is discharged into local waterways that drain into the Susquehanna River basin, ultimately reaching the Chesapeake Bay. The plant plays a role in reducing nutrient loads to the bay, supporting efforts to restore this ecologically important estuary. Its advanced treatment helps mitigate impacts on downstream aquatic ecosystems.

The plant discharges into tributaries 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, which are key contributors to eutrophication and hypoxia in the bay. The facility's inland location minimizes direct marine impacts, but its discharge contributes to the overall health of the bay ecosystem.