Salisbury Township Wastewater Treatment Plant, Lancaster County, Pennsylvania

The Salisbury Township wastewater treatment plant is located in Lancaster County, Pennsylvania, serving a population of 6,335 residents. The facility is situated in the Susquehanna River basin, an important watershed in the Mid-Atlantic region. As a small municipal plant in the United States, it operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Pennsylvania Department of Environmental Protection. The plant's designed capacity of 1.00 million gallons per day indicates it is sized for a community of this scale. The treated effluent from the plant ultimately drains into the Susquehanna River, which flows into the Chesapeake Bay. This makes the plant's performance significant for downstream water quality, as the Chesapeake Bay is a large estuary that supports diverse aquatic life and is subject to nutrient reduction goals under the Chesapeake Bay Total Maximum Daily Load (TMDL).

The plant discharges into local streams that are part of the Susquehanna River watershed, which flows into the Chesapeake Bay. The Chesapeake Bay is the largest estuary in the United States and supports a rich ecosystem including blue crabs, oysters, and migratory fish. Nutrient and sediment loads from upstream sources are a key concern for bay health, making wastewater treatment performance critical for meeting regional water quality targets.