Monongahela City STP, Monongahela

Overview

Monongahela City STP serves approximately 9,600 residents in Monongahela, Pennsylvania. The plant operates under the US Clean Water Act, with NPDES permits regulating its discharge to protect local waterways.

Monongahela City STP is a municipal wastewater treatment plant located in Monongahela, Washington County, Pennsylvania. Serving a population of around 9,600, the facility is part of the region's infrastructure for managing domestic wastewater from the community and surrounding areas. Under the US Clean Water Act, plants of this scale are typically required to meet secondary treatment standards through National Pollutant Discharge Elimination System (NPDES) permits issued by the Pennsylvania Department of Environmental Protection. These permits set effluent limits to protect water quality in receiving streams. The plant discharges treated wastewater into the Monongahela River, a major tributary of the Ohio River. The Monongahela River supports diverse aquatic life and is used for recreation and drinking water downstream. Proper treatment helps maintain the ecological health of this important waterway.

Environmental context

The plant discharges into the Monongahela River, which flows north to join the Allegheny River at Pittsburgh, forming the Ohio River. The Ohio River then drains into the Mississippi River and ultimately the Gulf of Mexico. The Monongahela River watershed supports diverse fish populations and is a critical habitat for freshwater mussels. Maintaining water quality is essential for downstream communities and ecosystems.

Frequently asked questions

Monongahela City STP is located in Monongahela, Washington County, Pennsylvania, United States.

The plant serves approximately 9,600 residents in the Monongahela area.

The plant discharges treated effluent into the Monongahela River, which flows into the Ohio River and eventually the Gulf of Mexico.

The plant operates under the Clean Water Act, requiring an NPDES permit issued by the Pennsylvania Department of Environmental Protection. These permits set limits on pollutants to protect water quality.

Plants of this size typically provide secondary treatment, which includes biological processes to remove organic matter and suspended solids, meeting EPA standards.