CENTENNIAL ESTATES
New Hampshire - Community Water System - PWSID: NH0613060
System Information
| PWSID | NH0613060 |
| System Name | CENTENNIAL 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 | DERRY |
| ZIP Code | 03038 |
| Address | 2 SPRING DR |
| Organization | CENTENNIAL ESTATES COOPERATIVE INC |
| Phone | - |
Population & Service
| Population Served | 140 |
| Service Connections | 56 |
Drinking Water Violations (231)
This water system has 231 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, 2023 | Sep 30, 2023 | MCL | Yes | No | 11.6 MG/L | 10 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | 11.6 MG/L | 10 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | 11.6 MG/L | 10 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | 11.6 MG/L | 10 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Oct 29, 2012 | - | Other | No | No | - | - | - | Resolved | Jan 17, 2013 | - | |
| Oct 29, 2012 | - | Other | No | No | - | - | - | Resolved | Jan 17, 2013 | - | |
| Oct 29, 2012 | - | Other | No | No | - | - | - | Resolved | Jan 17, 2013 | - | |
| Oct 29, 2012 | - | Other | No | No | - | - | - | Resolved | Jan 17, 2013 | - | |
| Oct 29, 2012 | - | Other | No | No | - | - | - | Resolved | Jan 17, 2013 | - | |
| Oct 29, 2012 | - | Other | No | No | - | - | - | Resolved | Jan 17, 2013 | - | |
| Aug 3, 2012 | - | MR | No | Yes | - | - | - | Resolved | Sep 18, 2012 | - | |
| Aug 3, 2012 | - | MR | No | Yes | - | - | - | Resolved | Sep 18, 2012 | - | |
| Aug 3, 2012 | - | MR | No | Yes | - | - | - | Resolved | Sep 18, 2012 | - | |
| Aug 3, 2012 | - | MR | No | Yes | - | - | - | Resolved | Sep 18, 2012 | - | |
| Aug 1, 2012 | Aug 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2012 | - | |
| Aug 1, 2012 | Aug 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2012 | - | |
| Aug 1, 2012 | Aug 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2012 | - | |
| Aug 1, 2012 | Aug 31, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2012 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Sep 17, 2012 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Sep 17, 2012 | - | |
| Jul 1, 2012 | Jul 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2012 | - | |
| Jul 1, 2012 | Jul 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2012 | - | |
| Jul 1, 2012 | Jul 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2012 | - | |
| Jul 1, 2012 | Jul 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2012 | - | |
| Jul 1, 2012 | Jul 31, 2012 | MR | No | No | - | 5% of samples | - | Archived | Jul 31, 2012 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Sep 17, 2012 | - | |
| Jun 18, 2012 | - | Other | No | No | - | - | - | Resolved | Sep 13, 2012 | - | |
| Jun 18, 2012 | - | Other | No | No | - | - | - | Resolved | Sep 13, 2012 | - | |
| Apr 1, 2012 | Apr 30, 2012 | MR | No | No | - | 5% of samples | - | Archived | Apr 30, 2012 | - | |
| Apr 1, 2012 | Apr 30, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2012 | - | |
| Apr 1, 2012 | Apr 30, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2012 | - | |
| Apr 1, 2012 | Apr 30, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2012 | - | |
| Apr 1, 2012 | Apr 30, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2012 | - | |
| Oct 1, 2011 | Dec 31, 2011 | MR | No | No | - | 5% of samples | - | Archived | Dec 31, 2011 | - | |
| Oct 1, 2011 | Dec 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Nov 17, 2011 | - | |
| Oct 1, 2011 | Dec 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Nov 17, 2011 | - | |
| Oct 1, 2011 | Dec 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Nov 17, 2011 | - | |
| Oct 1, 2011 | Dec 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Nov 17, 2011 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | No | - | 0.001 mg/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | No | - | 0.05 mg/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | No | - | 0.0002 mg/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | No | - | 0.001 mg/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | No | - | 0.003 mg/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | No | - | 0.4 mg/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | No | - | 0.0002 mg/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | No | - | 0.0002 mg/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | No | - | 0.05 mg/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | No | - | 0.04 mg/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | No | - | 0.002 mg/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | No | - | 0.04 mg/L | - | Resolved | Dec 31, 2009 | - |
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.