CHARLESTOWN WATER WORKS
New Hampshire - Community Water System - PWSID: NH0411010
System Information
| PWSID | NH0411010 |
| System Name | CHARLESTOWN WATER WORKS |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 01 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 8, 1979 |
| Last Reported | Feb 19, 2026 |
Location & Contact
| State | New Hampshire |
| City | CHARLESTOWN |
| ZIP Code | 03603 |
| Address | PO BOX 834 |
| Organization | TOWN OF CHARLESTOWN |
| Phone | - |
Population & Service
| Population Served | 2,850 |
| Service Connections | 1,250 |
Drinking Water Violations (45)
This water system has 45 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2025 | Oct 1, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Oct 1, 2025 | - | |
| Jul 1, 2025 | Oct 1, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Oct 1, 2025 | - | |
| Jul 1, 2025 | Oct 1, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Oct 1, 2025 | - | |
| Jul 1, 2025 | Oct 1, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Oct 1, 2025 | - | |
| Jul 1, 2025 | Oct 1, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Oct 1, 2025 | - | |
| Jul 1, 2025 | Oct 1, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Oct 1, 2025 | - | |
| Jul 1, 2025 | Oct 1, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Oct 1, 2025 | - | |
| Jul 1, 2025 | Oct 1, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Oct 1, 2025 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Aug 2, 2021 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Aug 2, 2021 | - | |
| Jul 1, 2019 | Oct 1, 2019 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Oct 1, 2019 | - | |
| Jul 1, 2019 | Oct 1, 2019 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Oct 1, 2019 | - | |
| Jul 1, 2019 | Oct 1, 2019 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Oct 1, 2019 | - | |
| Jul 1, 2019 | Oct 1, 2019 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Oct 1, 2019 | - | |
| Jul 1, 2019 | Oct 1, 2019 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Oct 1, 2019 | - | |
| Jul 1, 2019 | Oct 1, 2019 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Oct 1, 2019 | - | |
| Apr 1, 2019 | Jul 1, 2019 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jul 1, 2019 | - | |
| Apr 1, 2019 | Jul 1, 2019 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jul 1, 2019 | - | |
| Jan 1, 2017 | - | MR | No | No | - | TT | - | Resolved | Feb 9, 2017 | - | |
| Jan 1, 2017 | - | MR | No | No | - | TT | - | Resolved | Feb 9, 2017 | - | |
| Jan 1, 2017 | - | MR | No | No | - | TT | - | Resolved | Feb 9, 2017 | - | |
| Jan 1, 2017 | - | MR | No | No | - | TT | - | Resolved | Feb 9, 2017 | - | |
| Oct 1, 1991 | Oct 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1991 | - | |
| Oct 1, 1991 | Oct 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1991 | - | |
| Oct 1, 1991 | Oct 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1991 | - | |
| Oct 1, 1991 | Oct 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1991 | - | |
| Oct 1, 1991 | Oct 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1991 | - | |
| Oct 1, 1991 | Oct 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1991 | - | |
| Oct 1, 1991 | Oct 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1991 | - | |
| Oct 1, 1991 | Oct 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1991 | - | |
| Oct 1, 1991 | Oct 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1991 | - | |
| Jan 1, 1991 | Jan 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 31, 1991 | - | |
| Jan 1, 1991 | Jan 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 31, 1991 | - | |
| Jan 1, 1991 | Jan 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 31, 1991 | - | |
| Jan 1, 1991 | Jan 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 31, 1991 | - | |
| Jan 1, 1991 | Jan 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 31, 1991 | - | |
| Jan 1, 1991 | Jan 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 31, 1991 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.