Dannemora T Lyon Mtn STP - Town of Dannemora, New York Wastewater Treatment Plant

Dannemora T Lyon Mtn STP is a municipal wastewater treatment facility located in the Town of Dannemora, Clinton County, New York. The plant serves a small population of 400 residents and operates as part of the region's wastewater infrastructure in the Adirondack foothills. The plant provides secondary treatment, which is the standard level required under the U.S. Clean Water Act for municipal facilities. With a designed capacity of 264.98 megaliters per year and an actual discharge volume of 162.77 megaliters per year, the plant operates below its capacity. As a U.S. facility, it operates under an EPA National Pollutant Discharge Elimination System (NPDES) permit issued by the New York State Department of Environmental Conservation, ensuring compliance with water quality standards. The treated effluent is discharged into local streams that flow into the Saranac River watershed, which ultimately drains into Lake Champlain. Lake Champlain is a major freshwater lake that supports diverse aquatic life and serves as a drinking water source for surrounding communities. The plant's location in the Adirondack region places it in an environmentally sensitive area with cold-water fisheries and recreational water resources.

The plant discharges into tributaries of the Saranac River, which flows into Lake Champlain, a large freshwater lake on the border of New York and Vermont. Lake Champlain supports a diverse ecosystem including lake trout, landlocked Atlantic salmon, and migratory birds. The watershed is part of the larger Lake Champlain Basin, which is managed for water quality under the Lake Champlain Management Plan to address nutrient loading and protect aquatic habitats.