SLTMA LAWN STP - Advanced Wastewater Treatment in South Londonderry Township, Pennsylvania

SLTMA LAWN STP serves the community of South Londonderry Township in Lebanon County, Pennsylvania. This small-scale facility provides advanced treatment for a population of 265, ensuring high-quality effluent before discharge. The plant's designed capacity is 75.71 units, matching its current discharge volume, indicating efficient operation. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other contaminants. Under the US Clean Water Act, such facilities operate under National Pollutant Discharge Elimination System (NPDES) permits issued by the Pennsylvania Department of Environmental Protection, ensuring compliance with water quality standards. The treated effluent is discharged into local waterways within the Susquehanna River basin, which ultimately drains into the Chesapeake Bay. This region is ecologically significant as the Chesapeake Bay watershed supports diverse aquatic life and is a critical habitat for migratory species. The plant's advanced treatment helps reduce nutrient loading to the bay, contributing to regional restoration efforts.

The plant discharges into local streams within the Susquehanna River basin, which flows into the Chesapeake Bay. The Chesapeake Bay is the largest estuary in the United States and supports a rich ecosystem of fish, crabs, and waterfowl. Advanced treatment at this plant helps minimize nutrient pollution, which is a key concern for the bay's health.