Commonwealth Utilities Corp (Saipan)
MP - Community Water System - PWSID: MP0000001
System Information
| PWSID | MP0000001 |
| System Name | Commonwealth Utilities Corp (Saipan) |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | State |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Jan 21, 1981 |
| Last Reported | Mar 18, 2026 |
Location & Contact
| State | MP |
| City | Saipan |
| ZIP Code | 96950 |
| Address | Joeten Dandan Building |
| Organization | Commonwealth Utility Corporation |
| Phone | 6706644282 |
Population & Service
| Population Served | 48,524 |
| Service Connections | 11,317 |
Drinking Water Violations (80)
This water system has 80 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nov 1, 2023 | Nov 30, 2023 | MCL | Yes | No | - | - | - | Resolved | Nov 23, 2023 | - | |
| Oct 1, 2023 | - | TT | Yes | No | - | - | - | Resolved | Oct 14, 2023 | - | |
| Dec 1, 2021 | - | TT | Yes | No | - | - | - | Resolved | Apr 19, 2022 | - | |
| Sep 1, 2021 | - | TT | Yes | No | - | - | - | Resolved | Jan 11, 2022 | - | |
| Apr 1, 2021 | - | TT | Yes | No | - | - | - | Resolved | Dec 17, 2021 | - | |
| Apr 1, 2021 | - | TT | Yes | No | - | - | - | Resolved | Jan 11, 2022 | - | |
| Oct 30, 2019 | - | TT | Yes | No | - | - | - | Resolved | Jan 11, 2022 | - | |
| Oct 30, 2019 | - | TT | Yes | No | - | - | - | Resolved | Jan 11, 2022 | - | |
| Oct 1, 2019 | Oct 31, 2019 | MCL | Yes | No | - | - | - | Resolved | Oct 31, 2019 | - | |
| Mar 31, 2019 | - | TT | Yes | No | - | - | - | Resolved | Jan 11, 2022 | - | |
| Mar 31, 2019 | - | TT | Yes | No | - | - | - | Resolved | Jan 11, 2022 | - | |
| Mar 31, 2019 | - | TT | Yes | No | - | - | - | Resolved | Jan 11, 2022 | - | |
| Mar 31, 2019 | - | TT | Yes | No | - | - | - | Resolved | Jan 11, 2022 | - | |
| Mar 1, 2016 | Mar 31, 2016 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 2016 | - | |
| Sep 1, 2015 | Sep 30, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2015 | - | |
| Sep 1, 2014 | Sep 30, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2014 | - | |
| Dec 1, 2008 | Dec 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2008 | - | |
| Oct 1, 2008 | Oct 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2008 | - | |
| Sep 1, 2008 | Sep 30, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2008 | - | |
| Sep 1, 2008 | Sep 30, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2008 | - | |
| Aug 1, 2008 | Aug 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2008 | - | |
| Aug 1, 2008 | Aug 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2008 | - | |
| Aug 1, 2008 | Aug 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2008 | - | |
| Aug 1, 2008 | Aug 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2008 | - | |
| Jul 1, 2008 | Jul 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 15, 2008 | - | |
| Jun 1, 2008 | Jun 30, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2008 | - | |
| Mar 1, 2008 | Mar 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 10, 2008 | - | |
| Mar 1, 2008 | Mar 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 10, 2008 | - | |
| Feb 1, 2008 | Feb 29, 2008 | MCL | Yes | No | - | 5% of samples | - | Archived | Feb 29, 2008 | - | |
| Feb 1, 2008 | Feb 29, 2008 | MCL | Yes | No | - | 5% of samples | - | Archived | Feb 29, 2008 | - | |
| Feb 1, 2008 | Feb 29, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Feb 12, 2008 | - | |
| Nov 1, 2007 | Nov 30, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 27, 2007 | - | |
| Oct 1, 2007 | Oct 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Archived | Oct 31, 2007 | - | |
| Oct 1, 2007 | Oct 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 30, 2007 | - | |
| Aug 1, 2007 | Aug 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2007 | - | |
| Jun 1, 2007 | Jun 30, 2007 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 2007 | - | |
| Jun 1, 2007 | Jun 30, 2007 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 2007 | - | |
| Jun 1, 2007 | Jun 30, 2007 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 2007 | - | |
| Jun 1, 2007 | Jun 30, 2007 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 2007 | - | |
| Apr 1, 2007 | Apr 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2007 | - | |
| Apr 1, 2007 | Apr 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2007 | - | |
| Apr 1, 2007 | Apr 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2007 | - | |
| Apr 1, 2007 | Apr 30, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2007 | - | |
| Mar 1, 2007 | Mar 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Archived | Mar 31, 2007 | - | |
| Feb 1, 2007 | Feb 28, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2007 | - | |
| May 1, 2005 | May 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2005 | - | |
| Jan 1, 2005 | - | MR | No | No | - | TT | - | Resolved | May 3, 2005 | - | |
| Jan 1, 2005 | - | MR | No | No | - | TT | - | Resolved | May 3, 2005 | - | |
| Oct 1, 2004 | Oct 31, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2004 | - | |
| Jun 1, 2004 | Jun 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2004 | - |
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.