Upper Gwynedd Twp STP - Wastewater Treatment Plant in Upper Gwynedd Township, Pennsylvania

Upper Gwynedd Twp STP is a municipal wastewater treatment facility located in Upper Gwynedd Township, Montgomery County, Pennsylvania. The plant serves a population of about 10,900 people, classifying it as a small to medium 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. These permits set effluent limits to protect water quality. The treated effluent is discharged to local streams that flow into the Wissahickon Creek, a tributary of the Schuylkill River, which ultimately drains into the Delaware River and Delaware Bay. The plant plays a key role in protecting the health of these water bodies and the downstream ecosystems they support.

The plant discharges into local waterways within the Wissahickon Creek watershed, part of the larger Schuylkill River basin. The Schuylkill River flows into the Delaware River, which empties into the Delaware Bay, a major estuary supporting diverse aquatic life and migratory fish. The plant's operations help maintain water quality in this ecologically sensitive region, which provides habitat for species such as American shad and Atlantic sturgeon.