HAMLIN TWP STP - Hamlin Township, Pennsylvania Wastewater Treatment Plant

HAMLIN TWP STP (Sewage Treatment Plant) serves the community of Hamlin Township in McKean County, Pennsylvania. This facility provides secondary treatment for a population of 473, reflecting a small-scale municipal wastewater operation typical of rural areas in the state. As a secondary treatment plant, it meets the minimum standard under the U.S. Clean Water Act for municipal wastewater treatment. The plant has a designed capacity of 189.27 megaliters per year, with an annual discharge volume of 151.42 megaliters, indicating operational utilization within its capacity. The plant discharges treated effluent into local streams that drain into the Allegheny River watershed, ultimately reaching the Ohio and Mississippi Rivers. This inland location supports aquatic ecosystems in the region, including fish and macroinvertebrate communities.

The plant discharges into tributaries of the Allegheny River, which flows into the Ohio River and then the Mississippi River to the Gulf of Mexico. The local watershed supports diverse aquatic life, including coldwater fish species, and the plant's secondary treatment helps protect downstream water quality in this rural forested region.