Lewiston T Master SD WWTPandOnsites - Town of Lewiston, New York Wastewater Treatment Plant

Lewiston T Master SD WWTPandOnsites is a municipal wastewater treatment facility located in the Town of Lewiston, Niagara County, New York. The plant serves a population of about 15,602 people, placing it in the medium-agglomeration category under US regulatory frameworks. Its designed capacity is 1.00 million gallons per day, reflecting the scale of the local community it supports. As a US facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the New York State Department of Environmental Conservation. For a plant of this size, secondary treatment is typically required, with possible additional nutrient removal depending on the sensitivity of the receiving water body. The plant's treatment processes and operational status are consistent with standard municipal practices in the region. The plant discharges treated effluent into the local watershed, which ultimately drains into the Niagara River and then into Lake Ontario. This water body is part of the Great Lakes system, a critical freshwater resource supporting diverse aquatic life and providing drinking water for millions. The plant's operations are important for protecting water quality in this ecologically sensitive region.

The treated effluent from Lewiston T Master SD WWTPandOnsites flows into the Niagara River, which connects Lake Erie to Lake Ontario. Lake Ontario is the easternmost Great Lake and supports a diverse ecosystem, including fish species such as lake trout and salmon, as well as migratory birds. The Niagara River corridor is an important ecological zone, and maintaining water quality is essential for both aquatic health and downstream uses, including recreation and drinking water.