CONNECTICUT RIVER MHP
New Hampshire - Community Water System - PWSID: NH0413020
System Information
| PWSID | NH0413020 |
| System Name | CONNECTICUT RIVER MHP |
| System Type | Community Water System |
| Water Source | Ground 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 | WALPOLE |
| ZIP Code | 03608 |
| Address | PO BOX 387 |
| Organization | EVERETT E HOUGHTON CO INC |
| Phone | - |
Population & Service
| Population Served | 50 |
| Service Connections | 18 |
Drinking Water Violations (248)
This water system has 248 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, 2014 | - | Other | No | No | - | - | - | Resolved | Sep 2, 2014 | - | |
| Jul 1, 2014 | - | Other | No | No | - | - | - | Resolved | Sep 2, 2014 | - | |
| Jul 1, 2014 | - | Other | No | No | - | - | - | Resolved | Sep 2, 2014 | - | |
| Mar 26, 2014 | - | Other | No | No | - | - | - | Resolved | Dec 5, 2014 | - | |
| Mar 26, 2014 | - | Other | No | No | - | - | - | Resolved | Dec 5, 2014 | - | |
| Mar 26, 2014 | - | Other | No | No | - | - | - | Resolved | Dec 5, 2014 | - | |
| Mar 26, 2014 | - | Other | No | No | - | - | - | Resolved | Dec 5, 2014 | - | |
| Feb 9, 2014 | - | TT | Yes | No | - | - | - | Resolved | Dec 31, 2014 | - | |
| Feb 9, 2014 | - | TT | Yes | No | - | - | - | Resolved | Dec 31, 2014 | - | |
| Feb 9, 2014 | - | TT | Yes | No | - | - | - | Resolved | Dec 31, 2014 | - | |
| Feb 9, 2014 | - | TT | Yes | No | - | - | - | Resolved | Dec 31, 2014 | - | |
| Feb 9, 2014 | - | TT | Yes | No | - | - | - | Resolved | Dec 31, 2014 | - | |
| Feb 22, 2011 | - | TT | Yes | No | - | - | - | Resolved | Jul 14, 2011 | - | |
| Feb 22, 2011 | - | TT | Yes | No | - | - | - | Resolved | Jul 14, 2011 | - | |
| Feb 22, 2011 | - | TT | Yes | No | - | - | - | Resolved | Jul 14, 2011 | - | |
| Feb 22, 2011 | - | TT | Yes | No | - | - | - | Resolved | Jul 14, 2011 | - | |
| May 1, 2009 | May 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2009 | - | |
| May 1, 2009 | May 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2009 | - | |
| May 1, 2009 | May 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2009 | - | |
| May 1, 2009 | May 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2009 | - | |
| Oct 1, 2008 | Jan 1, 2009 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jan 1, 2009 | - | |
| Oct 1, 2008 | Jan 1, 2009 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jan 1, 2009 | - | |
| Jul 1, 2007 | Oct 1, 2007 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Oct 1, 2007 | - | |
| Jul 1, 2007 | Oct 1, 2007 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Oct 1, 2007 | - | |
| Apr 1, 2007 | - | TT | Yes | No | - | TT | - | Resolved | Jun 25, 2007 | - | |
| Apr 1, 2007 | - | TT | Yes | No | - | TT | - | Resolved | Jun 25, 2007 | - | |
| Apr 1, 2007 | - | TT | Yes | No | - | TT | - | Resolved | Jun 25, 2007 | - | |
| Apr 1, 2007 | - | TT | Yes | No | - | TT | - | Resolved | Jun 25, 2007 | - | |
| Jul 1, 2006 | Oct 1, 2006 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Oct 1, 2006 | - | |
| Jul 1, 2006 | - | Other | No | No | - | - | - | Resolved | Dec 29, 2006 | - | |
| Jul 1, 2006 | - | Other | No | No | - | - | - | Resolved | Dec 29, 2006 | - | |
| Jul 1, 2006 | Oct 1, 2006 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Oct 1, 2006 | - | |
| Jul 1, 2006 | Oct 1, 2006 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Oct 1, 2006 | - | |
| Jul 1, 2006 | - | Other | No | No | - | - | - | Resolved | Dec 29, 2006 | - | |
| Jul 1, 2006 | Oct 1, 2006 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Oct 1, 2006 | - | |
| Jan 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Jan 4, 2007 | - | |
| Jan 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Jan 4, 2007 | - | |
| Jan 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Jan 4, 2007 | - | |
| Jan 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Jan 4, 2007 | - | |
| Jul 1, 2004 | Jul 1, 2007 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jul 1, 2007 | - | |
| Jul 1, 2004 | Jul 1, 2007 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jul 1, 2007 | - | |
| Jul 1, 2004 | Jul 1, 2007 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jul 1, 2007 | - | |
| Jul 1, 2004 | Jul 1, 2007 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jul 1, 2007 | - | |
| Jul 1, 2004 | Jul 1, 2007 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jul 1, 2007 | - | |
| Jul 1, 2004 | Jul 1, 2007 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jul 1, 2007 | - | |
| Jul 1, 2004 | Jul 1, 2007 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jul 1, 2007 | - | |
| Jul 1, 2004 | Jul 1, 2007 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jul 1, 2007 | - | |
| Jun 1, 2000 | Jun 30, 2000 | MR | No | Yes | - | 5% of samples | - | Resolved | Jun 30, 2000 | - | |
| Jun 1, 2000 | Jun 30, 2000 | MR | No | Yes | - | 5% of samples | - | Resolved | Jun 30, 2000 | - | |
| Jun 1, 2000 | Jun 30, 2000 | MR | No | Yes | - | 5% of samples | - | Resolved | Jun 30, 2000 | - |
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.