Keene Wastewater Treatment Facility
198 Airport Road, Keene, NH 03431 · Cheshire County · Publicly Owned Treatment Works
- Average flow
- 1.87 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 1.87 million gallons per day against a permitted design capacity of 6 MGD, serving about 25,380 residents. It discharges under NPDES permit NH0100790 (effective), which expires in November 2026, with 8 recorded violations in the last three years. EPA has recorded 5 formal enforcement actions naming the plant, the latest in July 2012.
Treatment technology
One treatment structure or unit process identified at Keene Wastewater Treatment Facility.
Available with a free Klarifi account
See the full treatment train at Keene Wastewater Treatment Facility: structures, unit processes and planned upgrades, with exact unit counts.
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.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Keene Wastewater Treatment Facility in EPA's ICIS system.
- Formal actions
- 5
- 0 since FY2020
- Penalties assessed
- $58,000
- all cases
- Compliance actions
- $22M
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Jul 2012
KEENE CITY OF
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $6M
Source: EPA ECHO, civil enforcement case 01-2004-2106.
Full case history with a free Klarifi account
Every action against Keene Wastewater Treatment Facility with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
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
0.06 MGD
Winchester · 10 mi away
0.14 MGD
Westmoreland · 11 mi away
0.01 MGD
Hinsdale · 13 mi away
0.12 MGD
Charlestown · 24 mi away
0.17 MGD
Henniker · 30 mi away
0.13 MGD
Milford · 33 mi away
1.14 MGD
Sunapee · 35 mi away
0.3 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 October 26, 2026; facility record last updated May 21, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · FOG · Equalization tank · all terms