Lewiston Auburn W W T P - Municipal Wastewater Treatment in Lewiston, Maine

Lewiston Auburn W W T P is a municipal wastewater treatment facility located in Lewiston, Maine, serving a population of around 59,644. Situated in Androscoggin County, the plant is part of the region's infrastructure for managing domestic and industrial wastewater. As a medium-sized agglomeration, the facility plays a key role in protecting local water quality. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater. The National Pollutant Discharge Elimination System (NPDES) permit program governs discharge limits, ensuring compliance with federal and state standards. The designed capacity of 1.00 million gallons per day indicates the plant's scale relative to the population served. The plant discharges treated effluent into the Androscoggin River, which flows into Merrymeeting Bay and eventually the Gulf of Maine. The river supports diverse aquatic life and is an important migratory corridor for fish species. The plant's operations are critical for maintaining water quality in this watershed, which is subject to seasonal variations and industrial influences.

The plant discharges into the Androscoggin River, a major waterway in Maine that flows through Lewiston and joins the Kennebec River at Merrymeeting Bay before reaching the Gulf of Maine. The river supports diverse aquatic life, including migratory fish such as Atlantic salmon and river herring. The watershed is ecologically sensitive due to historical industrial impacts and ongoing efforts to restore water quality.