Lititz Boro STP - Municipal Wastewater Treatment Plant in Lititz, Pennsylvania

Lititz Boro STP is a municipal wastewater treatment plant located in Lititz, Lancaster County, Pennsylvania. The facility serves a population of about 20,029, classifying it as a medium-sized agglomeration under US regulatory standards. It operates under the US Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all discharges to surface waters. As a plant of this scale, it is expected to provide at least secondary treatment, which is the national standard for municipal wastewater. The plant's treatment processes are designed to meet permit limits that protect water quality in the receiving stream. The facility is part of the broader infrastructure managed by local authorities in Lancaster County. The treated effluent from Lititz Boro STP discharges into Lititz Run, a tributary of the Conestoga River, which flows into the Susquehanna River and ultimately reaches the Chesapeake Bay. The Chesapeake Bay is a large estuary of ecological significance, supporting diverse aquatic life and important fisheries. The plant's operations contribute to the health of this watershed by reducing nutrient and pollutant loads.

The plant discharges into Lititz Run, which flows into the Conestoga River, then the Susquehanna River, and finally the Chesapeake Bay. The Chesapeake Bay is a major estuary that supports a rich ecosystem, including blue crabs, oysters, and migratory fish. Nutrient pollution from wastewater is a key concern in this watershed, as excess nitrogen and phosphorus can cause algal blooms and hypoxia. The plant's treatment level helps mitigate these impacts.