Wastewater plants in New Hampshire

88 plants indexed.

88 plants

Lisbon WWTF

Lisbon, New Hampshire

Lisbon WWTF is a secondary treatment plant serving 1,638 people in Lisbon, New Hampshire. It discharges treated wastewater into local waterways, operating under US EPA and state regulations.

Secondary 1,638

Woodsville WWTF

Haverhill, New Hampshire

Woodsville WWTF is a secondary treatment plant in Haverhill, New Hampshire, serving about 2,500 residents. It discharges treated wastewater into the local watershed, supporting downstream water quality.

Secondary 2,498

Canaan WWTF

Canaan, New Hampshire

Canaan WWTF is a secondary treatment plant serving 437 people in Canaan, New Hampshire. It discharges treated wastewater into local waterways, operating under U.S. EPA and state regulations.

Secondary 437

Bristol WWTF

Bristol, New Hampshire

Bristol WWTF is a secondary treatment plant serving about 9,000 people in Bristol, New Hampshire. It discharges treated wastewater into local waterways, supporting the Pemigewasset River watershed.

Secondary 9,000

Bethlehem WWTF

Bethlehem, New Hampshire

Bethlehem WWTF is a secondary treatment plant serving 2,819 people in Bethlehem, New Hampshire. It discharges 794.94 units of treated wastewater daily, with a designed capacity of 1,287.04 units.

Secondary 2,819

Ashland WWTF

Ashland, New Hampshire

Ashland WWTF is a secondary treatment plant serving 1,350 people in Ashland, New Hampshire. It discharges 908.50 units of treated wastewater daily, with a designed capacity of 6,056.64 units.

Secondary 1,350

Whitefield WWTF

Whitefield, New Hampshire

Whitefield WWTF is a secondary treatment plant serving 1,050 people in Whitefield, New Hampshire. It discharges 458.04 million gallons per year and operates under US EPA NPDES regulations.

Secondary 1,050

Stratford Millhouse WWTF

Columbia, New Hampshire

Stratford Millhouse WWTF is a secondary treatment plant in Columbia, New Hampshire, serving 168 people. It discharges treated wastewater into local waterways, supporting the Connecticut River watershed.

Secondary 168

Stratford Village WWTF

North Stratford, New Hampshire

Stratford Village WWTF is a secondary wastewater treatment plant in North Stratford, New Hampshire, serving 390 people. It discharges 79.49 million gallons per year and has a designed capacity of 170.34 million gallons.

Secondary 390

Northumberland Village WWTF

Northumberland, New Hampshire

Northumberland Village WWTF is a secondary treatment plant in Northumberland, New Hampshire, serving a small population of 271. It discharges treated wastewater into the local watershed, supporting the Upper Connecticut River basin.

Secondary 271

Groveton WWTF

Northumberland, New Hampshire

Groveton WWTF is a secondary treatment plant serving 2,578 people in Northumberland, New Hampshire. It discharges 802.51 units of treated wastewater daily, with a designed capacity of 1,389.24 units.

Secondary 2,578

Lancaster Grange WWTF

Lancaster, New Hampshire

Lancaster Grange WWTF is a secondary treatment plant serving 34 people in Lancaster, New Hampshire. It discharges 15.14 units of treated wastewater daily, operating under US EPA and state regulations.

Secondary 34

Colebrook WWTF

Colebrook, New Hampshire

Colebrook WWTF is a secondary treatment plant in Colebrook, New Hampshire, serving approximately 1,215 people. It discharges 753.30 million gallons per year and has a designed capacity of 1,703.43 million gallons per year.

Secondary 1,215

Winchester WWTF

Winchester, New Hampshire

Winchester WWTF is a secondary treatment plant serving 1,566 people in Winchester, New Hampshire. It discharges 681.37 thousand gallons per day and operates under US Clean Water Act regulations.

Secondary 1,566

Tamworth Village Septic System

Tamworth, New Hampshire

Tamworth Village Septic System is a primary treatment plant serving 64 people in Tamworth, New Hampshire. It discharges 7.57 million gallons per day and has a designed capacity of 11.36 million gallons per day.

Primary 64

Ossipee Center WWTF

Ossipee, New Hampshire

Ossipee Center WWTF is a secondary treatment plant serving 486 people in Ossipee, New Hampshire. It discharges treated wastewater into local waterways, supporting the region's water quality.

Secondary 486

New Hampton Village WWTF

New Hampton, New Hampshire

New Hampton Village WWTF is a secondary treatment plant serving 695 residents in New Hampton, New Hampshire. It discharges 189.27 megaliters of treated wastewater annually and operates under the US Clean Water Act.

Secondary 695

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

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

Franklin WWTF WRBP

Franklin, New Hampshire

Franklin WWTF WRBP serves approximately 102,784 people in Franklin, New Hampshire. The plant operates under the US Clean Water Act, with NPDES permits regulating its discharge into local waterways.

Not Reported 102,784

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, Ashland WWTF has the highest designed capacity at 6,057 m3/day.

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