West Grove Boro STP - Advanced Wastewater Treatment in London Grove Township, Pennsylvania

West Grove Boro STP is an advanced wastewater treatment facility located at 275 Valley Road in London Grove Township, Chester County, Pennsylvania. The plant serves a population of approximately 2,968 residents and operates as part of the municipal wastewater infrastructure for the West Grove area. The plant provides advanced treatment, which goes beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 946.35 thousand gallons per day and an average discharge volume of 772.22 thousand gallons per day, the facility operates under the U.S. Clean Water Act, which requires NPDES permits for all discharges to surface waters. The plant's advanced treatment level aligns with requirements for sensitive watersheds. The treated effluent is discharged into local streams that flow into the Delaware River Basin, ultimately reaching the Delaware Bay and the Atlantic Ocean. The plant plays a key role in protecting water quality in the region, supporting aquatic life and downstream ecosystems.

The plant discharges into tributaries of the Delaware River, which flows into the Delaware Bay and then the Atlantic Ocean. The Delaware River Basin supports diverse aquatic life, including migratory fish species such as American shad and Atlantic sturgeon. The advanced treatment helps reduce nutrient loading, which is critical for preventing eutrophication in the bay.