Pittsfield WWTF - Secondary Wastewater Treatment Plant in Pittsfield, New Hampshire

Pittsfield WWTF is a municipal wastewater treatment facility located in Pittsfield, New Hampshire, serving a small community of about 1,480 people. The plant is situated in Merrimack County and operates under the regulatory framework of the United States Clean Water Act, which requires secondary treatment for municipal discharges to protect water quality. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 1,514.16 cubic meters per day and an average discharge volume of 749.51 cubic meters per day, the facility operates well within its capacity. As a small-scale plant, it is subject to EPA National Pollutant Discharge Elimination System (NPDES) permitting, which sets effluent limits to safeguard receiving waters. The treated effluent from Pittsfield WWTF discharges into the Suncook River watershed, which flows into the Merrimack River and eventually to the Atlantic Ocean. This river system supports diverse aquatic life and provides recreational opportunities. The plant's secondary treatment helps maintain water quality in this ecologically important watershed.

Pittsfield WWTF discharges into the Suncook River, a tributary of the Merrimack River, which flows to the Atlantic Ocean. The Merrimack River watershed supports diverse fish populations, including migratory species, and provides drinking water for downstream communities. Secondary treatment reduces nutrient loads, helping to prevent eutrophication in the river and coastal waters.