Claremont Wastewater Treatment Facility
Claremont, NH · Sullivan County · Publicly Owned Treatment Works
- Average flow
- 1.2 MGD
- Design flow
- 3.9 MGD
- NPDES permit
- NH0101257
- Administratively continued
- Permit expires
- September 2021
- Population served
- 13,595
- CWNS 2022
Claremont Wastewater Treatment Facility is a publicly owned wastewater treatment works in Claremont, Sullivan County, New Hampshire treating an average of 1.2 million gallons per day against a permitted design capacity of 3.9 MGD, serving about 13,595 residents. Treatment on site includes clarifiers, biogas silos. It discharges under NPDES permit NH0101257 (administratively continued), which expires in September 2021, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Claremont Wastewater Treatment Facility.
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Nearby wastewater treatment plants in New Hampshire
Charlestown · 12 mi away
0.03 MGD
Sunapee · 13 mi away
0.22 MGD
Lebanon · 17 mi away
0.89 MGD
Hanover · 22 mi away
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Westmoreland · 29 mi away
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Henniker · 32 mi away
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Keene · 35 mi away
1.26 MGD
Bristol · 36 mi away
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Claremont Wastewater Treatment Facility: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed September 11, 2026; facility record last updated March 2, 2025.