Exeter Water Dept
PWSID: NH0801010
This system has unresolved violations related to monitoring, reporting, or procedural requirements, but none involve contaminant levels exceeding EPA health limits.
This system has more violations on record than 93% of water systems in New Hampshire.
Violation trend: 0.0 per year over the last 5 years, down from 2.8 per year in the previous 5.
System Details
| Population Served | 12,236 |
| Service Connections | 3,515 |
| Water Source | Surface Water |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Exeter |
| EPA ZIP on File | 03833 |
Areas Served
- Exeter, Rockingham County
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|---|---|---|
| Lead (90th percentile) | 0.0030 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0020 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0020 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0020 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0010 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
1 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|---|---|---|---|
| 7500 | Other | 2015-01-04 | Open |
Violation History (23 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|---|---|---|---|
| 2950 | MCL Measured: 0.1120 MG/L | 2019-07-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1080 MG/L | 2019-04-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1040 MG/L | 2019-01-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1155 MG/L | 2018-10-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1080 MG/L | 2018-07-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1170 MG/L | 2018-04-01 | Yes | Returned to Compliance |
| 0999 | MR | 2018-04-01 | Major | Returned to Compliance |
| 2950 | MCL Measured: 0.1180 MG/L | 2018-01-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1120 MG/L | 2017-10-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1070 MG/L | 2017-07-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0860 MG/L | 2017-04-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0890 MG/L | 2017-01-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0930 MG/L | 2016-10-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1150 MG/L | 2016-07-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1140 MG/L | 2016-04-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1170 MG/L | 2016-01-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1180 MG/L | 2015-10-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0990 MG/L | 2015-07-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1040 MG/L | 2015-04-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1020 MG/L | 2015-01-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 96.00 MG/L | 2014-10-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0970 MG/L | 2014-07-01 | Yes | Returned to Compliance |
Understanding This Water System's Record
Exeter Water Dept is a community water system water system that draws from surface water sources and serves a population of 12,236 in Exeter, New Hampshire. This page shows its complete compliance history as reported to the EPA's Safe Drinking Water Information System (SDWIS), the federal database that tracks every public water system in the United States.
What Do These Violations Mean?
Health-based violations mean the system exceeded an EPA maximum contaminant level (MCL) or failed to provide required treatment. These indicate potential health risks from contaminants like lead, arsenic, bacteria, nitrates, or disinfection byproducts. Non-health-based violations involve monitoring, reporting, or procedural requirements — the system missed a testing deadline or failed to notify customers, but contaminant levels were not necessarily unsafe.
What Should You Do?
Your water utility is required to publish an annual Consumer Confidence Report (CCR) that details test results and any violations. If your system has active health-based violations, consider a certified water filter rated for the specific contaminants involved. The contaminant guides on this site explain health risks and filter options for common pollutants. For the most current results, contact your water utility directly — EPA data can lag weeks or months behind real-time testing.