CORNERSTONE SCHOOL
New Hampshire — Non-Transient Non-Community — PWSID: NH2235060
System Information
| PWSID | NH2235060 |
| System Name | CORNERSTONE SCHOOL |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 01 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Mar 17, 1992 |
| Last Reported | Feb 19, 2026 |
Location & Contact
| State | New Hampshire |
| City | STRATHAM |
| ZIP Code | 03885 |
| Address | 146 HIGH ST |
| Organization | THE CORNERSTONE SCHOOL |
| Phone | — |
Population & Service
| Population Served | 190 |
| Service Connections | 1 |
Drinking Water Violations (20)
This water system has 20 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, 2007 | Dec 31, 2007 | MCL | Yes | No | .011 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | .011 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | .011 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | .011 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2007 | — | |
| Jan 1, 2006 | Mar 31, 2006 | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 2006 | — | |
| Jan 1, 2006 | Mar 31, 2006 | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 2006 | — | |
| Jan 1, 2006 | Mar 31, 2006 | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 2006 | — | |
| Jan 1, 2006 | Mar 31, 2006 | MCL | Yes | No | — | 5% of samples | — | Resolved | Mar 31, 2006 | — | |
| Jul 1, 2000 | Sep 30, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2000 | — | |
| Jul 1, 2000 | Sep 30, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2000 | — | |
| Jul 1, 2000 | Sep 30, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2000 | — | |
| Jul 1, 2000 | Sep 30, 2000 | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2000 | — | |
| Jul 1, 1998 | Sep 30, 1998 | MR | No | Yes | — | 5% of samples | — | Resolved | Sep 30, 1998 | — | |
| Jul 1, 1998 | Sep 30, 1998 | MR | No | Yes | — | 5% of samples | — | Resolved | Sep 30, 1998 | — | |
| Jul 1, 1998 | Sep 30, 1998 | MR | No | Yes | — | 5% of samples | — | Resolved | Sep 30, 1998 | — | |
| Jul 1, 1998 | Sep 30, 1998 | MR | No | Yes | — | 5% of samples | — | Resolved | Sep 30, 1998 | — | |
| Jan 1, 1996 | Mar 31, 1996 | MR | No | Yes | — | 5% of samples | — | Resolved | Mar 31, 1996 | — | |
| Jan 1, 1996 | Mar 31, 1996 | MR | No | Yes | — | 5% of samples | — | Resolved | Mar 31, 1996 | — | |
| Jan 1, 1996 | Mar 31, 1996 | MR | No | Yes | — | 5% of samples | — | Resolved | Mar 31, 1996 | — | |
| Jan 1, 1996 | Mar 31, 1996 | MR | No | Yes | — | 5% of samples | — | Resolved | Mar 31, 1996 | — |
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.