Newfields WWTF - Secondary Wastewater Treatment in Newfields, New Hampshire

Newfields WWTF is a municipal wastewater treatment facility located in Newfields, Rockingham County, New Hampshire. The plant serves a small population of approximately 700 residents, reflecting the rural character of the community. It is situated inland, more than 10 kilometers from the Atlantic coast, and discharges treated effluent into the local watershed. The plant provides secondary treatment, which is the standard level required by the US Clean Water Act for municipal facilities of this scale. Secondary treatment typically involves biological processes to remove organic matter and suspended solids. The plant has a designed capacity of 442.89 million gallons per year and currently treats an average of 367.19 million gallons annually, indicating operational headroom. The treated effluent from Newfields WWTF flows into the Squamscott River, which drains into the Great Bay estuary and eventually the Gulf of Maine. This watershed supports diverse aquatic life, including migratory fish species. The plant's discharge is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, ensuring compliance with water quality standards to protect downstream ecosystems.

Newfields WWTF discharges into the Squamscott River, a tributary of the Great Bay estuary, which connects to the Gulf of Maine. The Great Bay is a productive estuarine system that supports diverse aquatic life, including eelgrass beds and migratory fish like river herring. The plant's secondary treatment helps reduce nutrient loading and protect downstream water quality in this ecologically sensitive coastal watershed.