Wastewater plants in New Hampshire

88 plants indexed. Showing 40 matching current filters.

40 plants matching filters

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

Seabrook WWTF

Seabrook, New Hampshire

Seabrook WWTF serves approximately 10,800 residents in Seabrook, New Hampshire. The facility is located within 50 km of the Atlantic coast and discharges into the local watershed.

Not Reported 10,783 Medium

Pease Development WWTF

Portsmouth, New Hampshire

Pease Development WWTF in Portsmouth, New Hampshire, serves approximately 50,000 people. The facility operates under U.S. Clean Water Act regulations with NPDES permitting.

Not Reported 50,000 Medium

Portsmouth WWTF

Portsmouth, New Hampshire

Portsmouth WWTF serves 25,578 people in Portsmouth, New Hampshire. The plant is located on Peirce Island Road and discharges treated wastewater into the Piscataqua River estuary, which flows into the Gulf of Maine.

Not Reported 25,578 Medium

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

Hampton WWTF

Hampton, New Hampshire

Hampton WWTF serves over 165,000 people in Hampton, New Hampshire, discharging treated wastewater into the Atlantic coastal environment. The plant operates under U. S. EPA and state regulations.

Not Reported 165,319 Medium

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

Nashua WWTF

Nashua, New Hampshire

Nashua WWTF serves over 100,000 residents in Nashua, New Hampshire, as a key municipal wastewater facility. It operates under the US Clean Water Act, discharging treated effluent into the Merrimack River watershed.

Not Reported 100,247 Medium

Milford WWTF

Milford, New Hampshire

Milford WWTF serves approximately 12,300 residents in Milford, New Hampshire. The plant operates under the US Clean Water Act, discharging treated wastewater into the local watershed.

Not Reported 12,307 Low

Merrimack WWTF

Merrimack, New Hampshire

Merrimack WWTF serves approximately 17,725 people in Merrimack, New Hampshire. The plant operates under the US Clean Water Act, discharging treated wastewater into the local watershed.

Not Reported 17,725 Low

Manchester WWTF

Manchester, New Hampshire

Manchester WWTF serves approximately 94,000 residents in Manchester, New Hampshire. The plant discharges treated wastewater into the Merrimack River, which flows to the Atlantic Ocean.

Not Reported 94,024 Low

Hillsborough WWTF

Hillsborough, New Hampshire

Hillsborough WWTF serves approximately 3,200 residents in Hillsborough, New Hampshire. The facility operates under the US Clean Water Act, which mandates secondary treatment for municipal wastewater plants of this scale.

Not Reported 3,200 Low

Plymouth WWTF

Plymouth, New Hampshire

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.

Not Reported 12,561 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, Durham WWTF has the highest designed capacity at 1 m3/day.

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