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

Woodstock WWTF is a municipal wastewater treatment facility located on Old Dump Road in Woodstock, New Hampshire, serving a population of approximately 2,513 residents. The plant operates under the regulatory framework of the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater discharges to protect water quality. As a small-scale facility, it is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the New Hampshire Department of Environmental Services. The plant provides secondary treatment, a biological process that removes organic matter and suspended solids, meeting the standard requirements for inland facilities. The plant has a designed capacity of 1,287.04 million gallons per year and currently discharges 492.10 million gallons per year, indicating operational capacity below design levels. The treated effluent is discharged into a local water body that drains into the Pemigewasset River, a tributary of the Merrimack River, which flows to the Atlantic Ocean. The plant plays a key role in protecting the water quality of the Pemigewasset River watershed, which supports diverse aquatic life and recreational uses.

The plant discharges into a local water body that flows into the Pemigewasset River, part of the Merrimack River basin. The Merrimack River ultimately reaches the Atlantic Ocean at Newburyport, Massachusetts. The watershed supports a variety of fish species, including brook trout and smallmouth bass, and is used for recreation. The plant's secondary treatment helps reduce nutrient and organic loads, protecting downstream water quality in this ecologically sensitive region.