MATHER STP - Morgan Township, Pennsylvania Wastewater Treatment Plant

MATHER STP is a municipal wastewater treatment plant located in Morgan Township, Greene County, Pennsylvania, United States. It serves a small community of approximately 1,737 residents, reflecting its role in rural wastewater management within the region. The plant provides advanced treatment, which goes beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 757.08 thousand cubic meters per year and a similar discharge volume, the facility operates efficiently for its scale. As a US plant, 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 treated effluent is discharged into local streams that drain into the Monongahela River, part of the Ohio River basin, ultimately reaching the Mississippi River and the Gulf of Mexico. The plant plays a key role in protecting water quality in this rural watershed, supporting aquatic life and downstream ecosystems.

The plant discharges into tributaries of the Monongahela River, which flows into the Ohio River and then the Mississippi River, eventually reaching the Gulf of Mexico. The local watershed supports diverse aquatic species and is important for regional water quality. Advanced treatment helps reduce nutrient loading, protecting downstream environments from eutrophication.