Overview
Plymouth WWTF serves approximately 12,561 residents in Plymouth, New Hampshire. The plant operates under the US Clean Water Act's NPDES permit program, discharging treated wastewater to local waterways.
Plymouth WWTF is a municipal wastewater treatment facility located in Plymouth, New Hampshire, serving a population of about 12,561. The plant is situated inland, more than 50 km from the coast, and discharges into the Pemigewasset River watershed, which ultimately drains into the Merrimack River and the Atlantic Ocean. As a facility in the United States, Plymouth WWTF operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the New Hampshire Department of Environmental Services. For a community of this size, secondary treatment is typically required, with possible additional nutrient removal to protect sensitive water bodies. The plant's discharge contributes to the Pemigewasset River, a tributary of the Merrimack River. The Merrimack River watershed supports diverse aquatic life and provides drinking water for downstream communities. Proper treatment is essential to maintain water quality and ecosystem health in this region.
Environmental context
Plymouth WWTF discharges into the Pemigewasset River, which flows into the Merrimack River and eventually reaches the Atlantic Ocean. The watershed supports a variety of fish species and provides habitat for migratory birds. The plant's location inland reduces direct marine impact, but nutrient loading to freshwater systems can affect downstream water quality.
Frequently asked questions
Plymouth WWTF is located in Plymouth, New Hampshire, United States. The plant serves the municipal area of Plymouth and is situated inland, more than 50 km from the coast.
Plymouth WWTF serves approximately 12,561 residents, classifying it as a medium-sized agglomeration under typical regulatory frameworks.
The plant discharges treated wastewater into the Pemigewasset River, which flows into the Merrimack River and eventually reaches the Atlantic Ocean. The discharge is regulated under the US Clean Water Act.
Plymouth WWTF operates under the US Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the New Hampshire Department of Environmental Services.
For a community of this size, secondary treatment is typically required. Depending on the sensitivity of the receiving water body, additional nutrient removal may be mandated to protect water quality.
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