CLAY TWP SUPERVISORS HOPELAND STP - Advanced Wastewater Treatment in Clay Township, Pennsylvania

CLAY TWP SUPERVISORS HOPELAND STP is a municipal wastewater treatment facility located in Clay Township, Lancaster County, Pennsylvania. Serving a small population of 300, this plant is part of the region's decentralized wastewater infrastructure, typical for rural communities in the state. The plant employs advanced treatment processes, exceeding the secondary treatment standard required by the US Clean Water Act. With a designed capacity of 151.42 megaliters and an annual discharge volume of 113.56 megaliters, it operates well within its capacity. As a US facility, it operates under an EPA National Pollutant Discharge Elimination System (NPDES) permit issued by the Pennsylvania Department of Environmental Protection, which sets effluent limits to protect water quality. The treated effluent is discharged into a local waterway that drains into the Susquehanna River basin, eventually reaching the Chesapeake Bay. This makes the plant's advanced treatment important for reducing nutrient loads to the bay, a critical estuary ecosystem.

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 is ecologically sensitive, supporting diverse aquatic life and important fisheries. Advanced treatment at this plant helps reduce nitrogen and phosphorus loads, mitigating eutrophication and hypoxia in the bay.