Woodsville Wastewater Treatment Facility
Haverhill, NH · Grafton County · Publicly Owned Treatment Works
- Average flow
- 0.18 MGD
- Design flow
- —
- NPDES permit
- NHG580978
- Effective
- Permit expires
- November 2026
- Population served
- 814
- CWNS 2022
Woodsville Wastewater Treatment Facility is a publicly owned wastewater treatment works in Haverhill, Grafton County, New Hampshire treating an average of 0.18 million gallons per day, serving about 814 residents. It discharges under NPDES permit NHG580978 (effective), which expires in November 2026, with 26 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 26
- Effluent violations
- 23
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Woodsville Wastewater Treatment Facility, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Woodsville Wastewater Treatment Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in New Hampshire
Lisbon · 7 mi away
0.02 MGD
Littleton · 16 mi away
0.27 MGD
Woodstock · 20 mi away
0.08 MGD
Whitefield · 26 mi away
0.09 MGD
Waterville Valley · 30 mi away
0.14 MGD
Lancaster · 32 mi away
0.23 MGD
Hanover · 34 mi away
0.99 MGD
Lancaster · 34 mi away
0.0011 MGD
Woodsville 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 July 18, 2023.