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 | Dec 15, 2025 |
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 (23)
This water system has 23 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, 2021 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 2, 2021 | Consumer Confidence Rule |
| Jul 1, 2021 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 2, 2021 | Consumer Confidence Rule |
| Jul 1, 2019 | Oct 1, 2019 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Oct 1, 2019 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2019 | Oct 1, 2019 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Oct 1, 2019 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2019 | Oct 1, 2019 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Oct 1, 2019 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2019 | Oct 1, 2019 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Oct 1, 2019 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2019 | Oct 1, 2019 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Oct 1, 2019 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2019 | Oct 1, 2019 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Oct 1, 2019 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2019 | Jul 1, 2019 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jul 1, 2019 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2019 | Jul 1, 2019 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jul 1, 2019 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 9, 2017 | Lead and Copper Rule |
| Jan 1, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 9, 2017 | Lead and Copper Rule |
| Jan 1, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 9, 2017 | Lead and Copper Rule |
| Jan 1, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 9, 2017 | Lead and Copper Rule |
| Oct 1, 1991 | Oct 31, 1991 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1991 | Total Coliform Rule |
| Oct 1, 1991 | Oct 31, 1991 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1991 | Total Coliform Rule |
| Oct 1, 1991 | Oct 31, 1991 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1991 | Total Coliform Rule |
| Oct 1, 1991 | Oct 31, 1991 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1991 | Total Coliform Rule |
| Oct 1, 1991 | Oct 31, 1991 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1991 | Total Coliform Rule |
| Oct 1, 1991 | Oct 31, 1991 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1991 | Total Coliform Rule |
| Oct 1, 1991 | Oct 31, 1991 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1991 | Total Coliform Rule |
| Oct 1, 1991 | Oct 31, 1991 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1991 | Total Coliform Rule |
| Jan 1, 1991 | Jan 31, 1991 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 31, 1991 | Total Coliform Rule |
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.