PENNICHUCK WATER WORKS
New Hampshire — Community Water System — PWSID: NH1621010
System Information
| PWSID | NH1621010 |
| System Name | PENNICHUCK WATER WORKS |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 01 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 8, 1979 |
| Last Reported | Feb 19, 2026 |
Location & Contact
| State | New Hampshire |
| City | NASHUA |
| ZIP Code | 03064 |
| Address | PO BOX 428 |
| Organization | PENNICHUCK WATER WORKS INC |
| Phone | — |
Population & Service
| Population Served | 89,073 |
| Service Connections | 27,074 |
Drinking Water Violations (5)
This water system has 5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2008 | — | MR | No | No | — | TT | — | Resolved | Nov 10, 2008 | — | |
| Oct 1, 2008 | — | MR | No | No | — | TT | — | Resolved | Nov 10, 2008 | — | |
| Aug 1, 2002 | Aug 31, 2002 | TT | Yes | No | — | — | — | Resolved | Aug 31, 2002 | — | |
| Aug 1, 2002 | Aug 31, 2002 | TT | Yes | No | — | — | — | Resolved | Aug 31, 2002 | — | |
| Aug 1, 2002 | Aug 31, 2002 | TT | Yes | No | — | — | — | Resolved | Aug 31, 2002 | — |
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.