Exeter Wastewater Treatment Facility
Exeter, NH · Rockingham County · Publicly Owned Treatment Works
- Average flow
- 1.1 MGD
- Design flow
- —
- NPDES permit
- NHG58A004
- Expired
- Permit expires
- January 2026
- Population served
- 12,736
- CWNS 2022
Exeter Wastewater Treatment Facility is a publicly owned wastewater treatment works in Exeter, Rockingham County, New Hampshire treating an average of 1.1 million gallons per day, serving about 12,736 residents. Treatment on site includes clarifiers, aerated lagoons. It discharges under NPDES permit NHG58A004 (expired), which expires in January 2026, with 18 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
- 18
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Exeter
Exeter's capital improvement plan lists 9 water, sewer and wastewater line items worth $14M starting 2025–2028. The largest budgeted items are shown here.
All water and sewer capital projects in Exeter →
| Project | Budget | Years |
|---|---|---|
| Groundwater Source Development | $6,800,000 | 2025–2025 |
| High Street/Cross Country Sewer Rehab | $3,420,000 | 2026–2026 |
| WWTF Upgrades Phase I | $2,750,000 | 2027–2028 |
| Clemson Lagoon | $500,000 | 2025–2025 |
| Court Street Pump Station | $500,000 | 2027–2027 |
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
18 verified contacts for Exeter Wastewater Treatment Facility, with validated emails and direct phone numbers.
Unlock 18 verified contacts (15 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Exeter Wastewater Treatment Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in New Hampshire
Newmarket · 5 mi away
0.35 MGD
Epping · 7 mi away
0.13 MGD
Hampton · 8 mi away
2.08 MGD
Portsmouth · 9 mi away
—
Durham · 10 mi away
0.83 MGD
Portsmouth (newington) · 10 mi away
0.1 MGD
Rye · 11 mi away
0.0021 MGD
Portsmouth · 11 mi away
2.38 MGD
Exeter 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 19, 2025.