Lenhartsville Boro STP and CS - Greenwich Township, Pennsylvania Wastewater Treatment Plant

Lenhartsville Boro STP and CS is a municipal wastewater treatment facility located in Greenwich Township, Berks County, Pennsylvania. The plant serves a small population of 420 residents and operates under the regulatory framework of the US Clean Water Act, which requires secondary treatment for all publicly owned treatment works. As a small facility, it is subject to EPA NPDES permitting through the Pennsylvania Department of Environmental Protection, ensuring compliance with effluent limits designed to protect water quality. The plant has a designed capacity of 158.99 million gallons per year and treats wastewater to secondary treatment level, which involves biological processes to remove organic matter and suspended solids. Secondary treatment is the standard for municipal plants in the US, providing significant pollutant removal before discharge. The treated effluent is discharged into a local receiving water body, likely a tributary of the Schuylkill River, which flows into the Delaware River and ultimately to the Delaware Bay. This watershed supports diverse aquatic life and provides drinking water for downstream communities. The plant's location inland and its small population served reduce its environmental footprint, though ongoing compliance with permit limits is essential to protect the local ecosystem.

The plant discharges into a local stream that is part of the Schuylkill River watershed, which drains into the Delaware River and then the Delaware Bay. This region supports a variety of fish species and provides habitat for migratory birds. The Schuylkill River is a major drinking water source for Philadelphia, making upstream treatment quality critical for public health and ecological balance.