Elma T SD4 STP Wastewater Treatment Plant, Elma Center, New York

Elma T SD4 STP is a municipal wastewater treatment facility located in Elma Center, Erie County, New York. Serving a small population of 190, the plant provides secondary treatment as part of the local sanitation infrastructure. The facility is situated inland, approximately 50 kilometers from the coast, and operates under the regulatory framework of the United States Clean Water Act. The plant's treatment process is secondary, which is appropriate for its small scale. With a designed capacity of 75.71 units and a current discharge volume of 53.00 units, the facility operates below its capacity. As a US plant, it is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the New York State Department of Environmental Conservation, ensuring compliance with water quality standards. The treated effluent from Elma T SD4 STP is discharged into local waterways that ultimately drain into the Great Lakes Basin, specifically Lake Erie. This watershed supports diverse aquatic life and provides drinking water for millions. The plant's secondary treatment helps protect this sensitive ecosystem from nutrient pollution and pathogens.

The plant discharges into the Great Lakes Basin, with effluent eventually reaching Lake Erie. Lake Erie is the shallowest of the Great Lakes and supports a diverse aquatic ecosystem, including important fisheries. The watershed is ecologically sensitive to nutrient loading, which can cause algal blooms. Secondary treatment reduces organic pollutants and helps maintain water quality in this vital freshwater resource.