Keene Wastewater Treatment Facility
Keene, NH · Cheshire County · Publicly Owned Treatment Works
- Average flow
- 1.26 MGD
- Design flow
- 6 MGD
- NPDES permit
- NH0100790
- Effective
- Permit expires
- November 2026
- Population served
- 25,380
- CWNS 2022
Keene Wastewater Treatment Facility is a publicly owned wastewater treatment works in Keene, Cheshire County, New Hampshire treating an average of 1.26 million gallons per day against a permitted design capacity of 6 MGD, serving about 25,380 residents. Treatment on site includes clarifiers. It discharges under NPDES permit NH0100790 (effective), which expires in November 2026, with 8 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Compliance snapshot (last 3 years)
- Total violations
- 8
- Effluent violations
- 7
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Keene
Keene's capital improvement plan lists 42 water, sewer and wastewater line items worth $66M starting 2024–2030. The largest budgeted items are shown here.
All water and sewer capital projects in Keene →
| Project | Budget | Years |
|---|---|---|
| WWTP Sludge Dryer Project | $12,575,000 | 2026–2030 |
| Water Distribution Improvements Program | $10,155,900 | 2024–2031 |
| Sewer Improvements Program | $6,501,400 | 2024–2031 |
| CR Appropriation: Sewer Infrastructure | $5,250,000 | 2024–2031 |
| Well Field Upgrades Program | $4,953,000 | 2025–2028 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
Decision-makers at Keene Wastewater Treatment Facility.
No verified contacts on file yet
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Nearby wastewater treatment plants in New Hampshire
Swanzey · 3 mi away
0.05 MGD
Winchester · 10 mi away
0.11 MGD
Westmoreland · 11 mi away
0.01 MGD
Hinsdale · 13 mi away
0.07 MGD
Charlestown · 24 mi away
0.03 MGD
Henniker · 30 mi away
0.11 MGD
Milford · 33 mi away
0.78 MGD
Sunapee · 35 mi away
0.22 MGD
Keene 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 May 21, 2025.