Orwell W P C F Wastewater Treatment Plant, Orwell, Vermont

Orwell W P C F is a municipal wastewater treatment plant located in Orwell, Addison County, Vermont, United States. The facility serves a small population of 353 residents, reflecting the rural character of the Lake Champlain Valley region. 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 113.56 (likely in million gallons per day or similar units) and an average discharge volume of 79.49, the plant operates within its capacity. As a small agglomeration, it is subject to EPA NPDES permitting administered by the Vermont Department of Environmental Conservation. The plant's treated effluent discharges into a receiving water body that ultimately drains into Lake Champlain, a large freshwater lake that flows north via the Richelieu River into the St. Lawrence River and the Atlantic Ocean. Lake Champlain is ecologically significant, supporting diverse aquatic life and serving as a vital resource for recreation and drinking water. The plant's coastal proximity (within 10 km of the lake) underscores the importance of effective nutrient removal to protect water quality.

The plant discharges into a tributary of Lake Champlain, a major freshwater lake in the Lake Champlain Basin. The lake drains northward via the Richelieu River into the St. Lawrence River and ultimately the Atlantic Ocean. Lake Champlain supports diverse aquatic ecosystems, including coldwater fisheries and migratory bird populations, and is sensitive to nutrient loading from wastewater discharges.