Marion T WWTP and Onsite Sys - Advanced Wastewater Treatment in Town of Marion, New York

Marion T WWTP and Onsite Sys is a municipal wastewater treatment facility located in the Town of Marion, Wayne County, New York. Serving a population of approximately 1,100, the plant provides advanced treatment to meet stringent environmental standards. Its location in a rural area of upstate New York places it within the Lake Ontario watershed. The plant operates under the U.S. Clean Water Act, which requires NPDES permits for all discharges. With a designed capacity of 473.18 thousand gallons per day and a current discharge volume of 359.61 thousand gallons per day, the facility is operating below its capacity. Advanced treatment ensures high-quality effluent, reducing nutrient and pollutant loads to receiving waters. Treated effluent from the plant ultimately drains into Lake Ontario via local streams and tributaries. Lake Ontario is a vital freshwater resource and part of the Great Lakes system, supporting diverse aquatic life and providing drinking water for millions. The plant's advanced treatment helps protect this sensitive ecosystem from eutrophication and other pollution impacts.

The plant discharges into local waterways that flow into Lake Ontario, the easternmost Great Lake. Lake Ontario is a critical freshwater resource, supporting a diverse ecosystem including native fish species and migratory birds. The lake's health is sensitive to nutrient loading, and advanced treatment at this plant helps reduce phosphorus and nitrogen inputs, mitigating algal blooms and maintaining water quality for downstream communities.