Upper Saucon Twp STP - Coopersburg, Pennsylvania Wastewater Treatment Plant

Upper Saucon Twp STP is a municipal wastewater treatment facility located in Coopersburg, Lehigh County, Pennsylvania. It serves a population of about 8,897 people, classifying it as a small to medium-sized plant under U.S. EPA guidelines. As a U.S. facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permitting. For plants serving this population range, secondary treatment is typically required, with possible additional nutrient removal depending on the receiving water body's sensitivity. The treated effluent is discharged into local streams that flow into the Lehigh River, a tributary of the Delaware River. The Delaware River watershed supports diverse aquatic life and provides drinking water for millions. The plant's operations help protect water quality in this ecologically significant basin.

The plant discharges into tributaries of the Lehigh River, which flows into the Delaware River and ultimately to Delaware Bay. The Delaware River basin supports critical habitats for migratory fish such as American shad and Atlantic sturgeon. Nutrient management is important to prevent eutrophication in the bay.