Limerick Township King Road STP - Wastewater Treatment Plant in Montgomery County, Pennsylvania

Limerick Township King Road STP is a municipal wastewater treatment facility located at 523 King Road in Limerick Township, Montgomery County, Pennsylvania. The plant serves a population of around 13,074 residents, classifying it as a medium-sized agglomeration under U.S. regulatory frameworks. As a U.S. facility, the plant 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. For a plant of this scale, secondary treatment is typically required, with additional nutrient removal standards applicable in sensitive watersheds. The treated effluent from the plant is discharged into local streams that flow into the Schuylkill River, a major tributary of the Delaware River. The Delaware River Basin supports diverse aquatic life and provides drinking water for millions of people in the northeastern United States. The plant plays a key role in protecting water quality in this ecologically and economically important watershed.

The plant discharges into the Schuylkill River watershed, which drains into the Delaware River and ultimately into the Delaware Bay and Atlantic Ocean. The Schuylkill River is a critical drinking water source for Philadelphia and supports a variety of fish species, including American shad and striped bass. The Delaware River Basin is an ecologically sensitive area that requires careful management of nutrient and pollutant loads to prevent eutrophication and maintain habitat quality.