Wastewater plants in New Hampshire

88 plants indexed. Showing 35 matching current filters.

35 plants matching filters

Keene WWTF

Swanzey, New Hampshire

Keene WWTF serves approximately 27,375 people in Swanzey, New Hampshire. The plant operates under the U.S. Clean Water Act, with NPDES permits regulating its discharge to protect local water quality.

Not Reported 27,375 Low

Gorham WWTF

Gorham, New Hampshire

Gorham WWTF is a municipal wastewater treatment plant in Gorham, New Hampshire, serving approximately 2,400 residents. It operates under the US Clean Water Act, discharging treated effluent into the Androscoggin River watershed.

Not Reported 2,398 Low

Sunapee WWTF

Sunapee, New Hampshire

Sunapee WWTF serves the town of Sunapee, New Hampshire, treating wastewater for approximately 4,961 residents. The plant operates under the US Clean Water Act and EPA NPDES permitting framework.

Not Reported 4,961 Low

Newport WWTF

Newport, New Hampshire

Newport WWTF is a municipal wastewater treatment facility in Newport, New Hampshire, serving approximately 3,977 residents. The plant operates under the U.S. Clean Water Act framework.

Not Reported 3,977 Low

Claremont WWTF

Claremont, New Hampshire

Claremont WWTF is a municipal wastewater treatment plant serving approximately 10,100 people in Claremont, New Hampshire, United States. It operates under the US Clean Water Act framework.

Not Reported 10,100 Low

Charlestown WWTF

Charlestown, New Hampshire

Charlestown WWTF serves approximately 2,891 residents in Charlestown, New Hampshire. The plant operates under the U.S. Clean Water Act, with discharge likely to the Connecticut River watershed.

Not Reported 2,891 Low

Somersworth WWTF

Somersworth, New Hampshire

Somersworth WWTF is a municipal wastewater treatment plant in Somersworth, New Hampshire, serving approximately 10,547 people. It operates under the US Clean Water Act framework.

Not Reported 10,547 Low

Rochester WWTF

Rochester, New Hampshire

Rochester WWTF serves approximately 23,000 residents in Rochester, New Hampshire. The facility operates under the U.S. Clean Water Act, discharging treated wastewater into the local watershed.

Not Reported 23,096 Low

Farmington WWTF

Farmington, New Hampshire

Farmington WWTF serves approximately 2,730 residents in Farmington, New Hampshire. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater.

Not Reported 2,730 Low

Durham WWTF

Durham, New Hampshire

Durham WWTF serves approximately 18,679 residents in Durham, New Hampshire. The plant operates under the US Clean Water Act framework, discharging treated wastewater into the local watershed.

Not Reported 18,679 Low

Dover WWTF

Dover, New Hampshire

Dover WWTF is a municipal wastewater treatment facility in Dover, New Hampshire, serving approximately 25,000 residents. The plant operates under the US Clean Water Act and EPA NPDES permitting framework.

Not Reported 24,962 Low

Raymond WWTF

Raymond, New Hampshire

Raymond WWTF is a projected wastewater treatment facility in Raymond, New Hampshire, serving a population of 3,065. The plant is designed with a capacity of 1.00 million gallons per day.

Not Reported 3,065 Low

Newmarket WWTF

Newmarket, New Hampshire

Newmarket WWTF serves approximately 7,868 residents in Newmarket, New Hampshire. The plant discharges treated wastewater into the local watershed, ultimately draining to the Atlantic Ocean.

Not Reported 7,868 Low

Exeter WWTF

Exeter, New Hampshire

Exeter WWTF serves 12,170 people in Exeter, New Hampshire. The plant operates under the US Clean Water Act and EPA NPDES permitting framework.

Not Reported 12,170 Low

Derry WWTF

Derry, New Hampshire

Derry WWTF is a municipal wastewater treatment plant in Derry, New Hampshire, serving approximately 28,478 people. It operates under the US Clean Water Act framework with NPDES permitting.

Not Reported 28,478 Low

Hooksett WWTF

Hooksett, New Hampshire

Hooksett WWTF serves approximately 8,378 residents in Hooksett, New Hampshire. The plant discharges treated wastewater into the Merrimack River watershed, which flows to the Gulf of Maine.

Not Reported 8,378 Low

Concord Hall Street WWTF

Concord, New Hampshire

Concord Hall Street WWTF serves approximately 67,906 people in Concord, New Hampshire. The plant operates under the US Clean Water Act and EPA NPDES permitting framework.

Not Reported 67,906 Low

Penacook WWTF

Concord, New Hampshire

Penacook WWTF serves 9,055 people in Concord, New Hampshire. The plant discharges treated wastewater into the Merrimack River basin, supporting local water quality and downstream ecosystems.

Not Reported 9,055 Low

Allenstown Regional WWTF

Allenstown, New Hampshire

Allenstown Regional WWTF serves approximately 8,750 residents in Allenstown, New Hampshire. The plant operates under the U.S. Clean Water Act, with NPDES permits regulating its discharge.

Not Reported 8,750 Low

Peterborough WWTF

Peterborough, New Hampshire

Peterborough WWTF serves approximately 3,967 residents in Peterborough, New Hampshire. The facility discharges treated wastewater into local waterways under the U.S. Clean Water Act framework.

Not Reported 3,967 Low

Frequently asked

How many wastewater treatment plants are in New Hampshire?

UtilityRadar indexes 88 wastewater treatment plants in New Hampshire, with treatment level, capacity, operator and discharge data on each record.

What is the largest wastewater treatment plant in New Hampshire?

Among the indexed plants, Somersworth WWTF has the highest designed capacity at 1 m3/day.

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