Mahanoy City STP - Wastewater Treatment Plant in Mahanoy City, Pennsylvania

Mahanoy City STP is a wastewater treatment facility located in Mahanoy City, Schuylkill County, Pennsylvania. Serving a population of about 4,700, the plant is part of the municipal infrastructure for this small community in the coal region of eastern Pennsylvania. As a US facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permitting. It serves a population of under 5,000, classifying it as a small to medium facility. The plant discharges treated effluent into local streams that flow into the Schuylkill River, a major tributary of the Delaware River. The Schuylkill River provides drinking water for millions and supports diverse aquatic life, including migratory fish species. The plant's operation helps protect water quality in this important watershed.

The plant discharges into local waterways that drain into the Schuylkill River, which flows southeast to the Delaware River and ultimately into the Delaware Bay. The Schuylkill River watershed supports diverse aquatic ecosystems and provides drinking water for Philadelphia and surrounding communities. The plant's treatment helps reduce nutrient and pollutant loads, protecting downstream water quality and aquatic habitats.