Hatfield Dept of Public Works Wastewater Treatment Plant, Hatfield Massachusetts

The Hatfield Dept of Public Works operates a municipal wastewater treatment plant located at 260 Main Street in Hatfield, Massachusetts. The facility serves a population of approximately 1,491 residents in this small Hampshire County community, situated in the Pioneer Valley region of western Massachusetts. The plant provides secondary treatment, which is the standard level required under the US Clean Water Act for municipal wastewater facilities. With a designed capacity of 2,649.78 cubic meters per day and an average daily discharge volume of 567.81 cubic meters, the plant operates well below its capacity, indicating room for future growth. The facility is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program administered by the Massachusetts Department of Environmental Protection. Treated effluent from the plant discharges to a tributary of the Connecticut River, one of the largest river systems in New England. The Connecticut River flows southward through Massachusetts and Connecticut before emptying into Long Island Sound. The plant's discharge contributes to the overall water quality of this ecologically significant watershed, which supports diverse aquatic life and provides drinking water for millions of people downstream.

The plant discharges into the Connecticut River watershed, which drains into Long Island Sound. The Connecticut River is a major migratory corridor for fish species such as American shad and Atlantic salmon. The river and its tributaries support diverse aquatic habitats, including freshwater wetlands and floodplain forests. The plant's secondary treatment helps protect downstream water quality in this ecologically sensitive basin.