COLBY BROOK ESTATES
New Hampshire — Community Water System — PWSID: NH0773020
System Information
| PWSID | NH0773020 |
| System Name | COLBY BROOK ESTATES |
| 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 | EPSOM |
| ZIP Code | 03234 |
| Address | PO BOX 1019 |
| Organization | GRIGGS ENTERPRISES |
| Phone | — |
Population & Service
| Population Served | 68 |
| Service Connections | 27 |
Drinking Water Violations (177)
This water system has 177 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 1, 2014 | Jun 30, 2014 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 2014 | — | |
| Jun 1, 2014 | Jun 30, 2014 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 2014 | — | |
| Jun 1, 2014 | Jun 30, 2014 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 2014 | — | |
| Jun 1, 2014 | Jun 30, 2014 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 2014 | — | |
| Dec 1, 2013 | Dec 31, 2013 | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 2013 | — | |
| Dec 1, 2013 | Dec 31, 2013 | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 2013 | — | |
| Dec 1, 2013 | Dec 31, 2013 | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 2013 | — | |
| Dec 1, 2013 | Dec 31, 2013 | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 2013 | — | |
| Jun 1, 2013 | Jun 30, 2013 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2013 | — | |
| Jun 1, 2013 | Jun 30, 2013 | MR | No | No | — | 5% of samples | — | Archived | Jun 30, 2013 | — | |
| Jun 1, 2013 | Jun 30, 2013 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2013 | — | |
| Apr 1, 2013 | Jun 30, 2013 | MCL | Yes | No | .012 MG/L | 0.010 mg/L | — | Resolved | Jun 30, 2013 | — | |
| Apr 1, 2013 | Jun 30, 2013 | MCL | Yes | No | .012 MG/L | 0.010 mg/L | — | Resolved | Jun 30, 2013 | — | |
| Apr 1, 2013 | Jun 30, 2013 | MCL | Yes | No | .012 MG/L | 0.010 mg/L | — | Resolved | Jun 30, 2013 | — | |
| Apr 1, 2013 | Jun 30, 2013 | MCL | Yes | No | .012 MG/L | 0.010 mg/L | — | Resolved | Jun 30, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MCL | Yes | No | .014 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MCL | Yes | No | .014 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MCL | Yes | No | .014 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MCL | Yes | No | .014 MG/L | 0.010 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Oct 1, 2012 | Dec 31, 2012 | MCL | Yes | No | .018 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2012 | — | |
| Oct 1, 2012 | Dec 31, 2012 | MCL | Yes | No | .018 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2012 | — | |
| Oct 1, 2012 | Dec 31, 2012 | MCL | Yes | No | .018 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2012 | — | |
| Oct 1, 2012 | Dec 31, 2012 | MCL | Yes | No | .018 MG/L | 0.010 mg/L | — | Resolved | Dec 31, 2012 | — | |
| Jul 1, 2012 | Sep 30, 2012 | MCL | Yes | No | .072 MG/L | 0.010 mg/L | — | Resolved | Sep 30, 2012 | — | |
| Jul 1, 2012 | Sep 30, 2012 | MCL | Yes | No | .072 MG/L | 0.010 mg/L | — | Resolved | Sep 30, 2012 | — | |
| Jul 1, 2012 | Sep 30, 2012 | MCL | Yes | No | .072 MG/L | 0.010 mg/L | — | Resolved | Sep 30, 2012 | — | |
| Jul 1, 2012 | Sep 30, 2012 | MCL | Yes | No | .072 MG/L | 0.010 mg/L | — | Resolved | Sep 30, 2012 | — | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Mar 31, 2007 | — | |
| Jan 1, 2007 | Mar 31, 2007 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Mar 31, 2007 | — | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Sep 30, 2006 | — | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Sep 30, 2006 | — | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Sep 30, 2006 | — | |
| Jul 1, 2006 | Sep 30, 2006 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Sep 30, 2006 | — | |
| Jul 1, 2002 | Feb 18, 2003 | Other | No | Yes | — | — | — | Resolved | Feb 18, 2003 | — | |
| Jul 1, 2002 | Feb 18, 2003 | Other | No | Yes | — | — | — | Resolved | Feb 18, 2003 | — | |
| Jul 1, 2002 | Feb 18, 2003 | Other | No | Yes | — | — | — | Resolved | Feb 18, 2003 | — | |
| Jul 1, 2002 | Feb 18, 2003 | Other | No | Yes | — | — | — | Resolved | Feb 18, 2003 | — | |
| Jul 1, 2002 | Feb 18, 2003 | Other | No | Yes | — | — | — | Resolved | Feb 18, 2003 | — | |
| Jul 1, 2002 | Feb 18, 2003 | Other | No | Yes | — | — | — | Resolved | Feb 18, 2003 | — | |
| Oct 19, 1999 | Apr 2, 2003 | Other | No | Yes | — | — | — | Resolved | Apr 2, 2003 | — | |
| Oct 19, 1999 | Apr 2, 2003 | Other | No | Yes | — | — | — | Resolved | Apr 2, 2003 | — | |
| Oct 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 0.010 mg/L | — | Archived | Dec 31, 1999 | — | |
| Oct 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 0.010 mg/L | — | Archived | Dec 31, 1999 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 1997 | — | |
| Oct 1, 1997 | Dec 31, 1997 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 1997 | — | |
| Feb 1, 1997 | Feb 28, 1997 | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 28, 1997 | — | |
| Feb 1, 1997 | Feb 28, 1997 | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 28, 1997 | — | |
| Feb 1, 1997 | Feb 28, 1997 | MCL | Yes | No | — | 5% of samples | — | Resolved | Feb 28, 1997 | — |
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.