WANNACOMET WATER COMPANY
Massachusetts - Community Water System - PWSID: MA4197000
System Information
| PWSID | MA4197000 |
| System Name | WANNACOMET WATER COMPANY |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 01 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 26, 1979 |
| Last Reported | Jun 22, 2026 |
Location & Contact
| State | Massachusetts |
| City | NANTUCKET |
| ZIP Code | 02554 |
| Address | 1 MILESTONE RD |
| Organization | WANNACOMET WATER COMPANY |
| Phone | 5082280022 |
Population & Service
| Population Served | 27,703 |
| Service Connections | 7,221 |
Drinking Water Violations (103)
This water system has 103 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 2, 2025 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Jun 1, 2025 | - | MR | No | No | - | TT | - | Addressed | - | - | |
| Apr 1, 2025 | Jun 30, 2025 | MR | No | No | - | 10 mg/L | - | Archived | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MR | No | No | - | 10 mg/L | - | Archived | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MR | No | No | - | 1 mg/L | - | Archived | Jun 30, 2025 | - | |
| Apr 1, 2025 | Jun 30, 2025 | MR | No | No | - | 1 mg/L | - | Archived | Jun 30, 2025 | - | |
| Jul 1, 2022 | - | Other | No | No | - | - | - | Resolved | Aug 15, 2022 | - | |
| Jul 1, 2022 | - | Other | No | No | - | - | - | Resolved | Aug 15, 2022 | - | |
| Jul 1, 2016 | Sep 30, 2016 | MR | No | No | - | 10 mg/L | - | Archived | Sep 30, 2016 | - | |
| May 1, 2015 | May 31, 2015 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2015 | - | |
| May 1, 2015 | May 31, 2015 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 1 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.005 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.005 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 10 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.005 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.005 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.005 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.07 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.07 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.075 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.1 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.1 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.6 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.1 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.2 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.005 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.007 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.005 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.005 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.7 mg/L | - | Archived | Jun 30, 2015 | - | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | No | - | 0.002 mg/L | - | Archived | Jun 30, 2015 | - | |
| Sep 1, 2012 | Sep 30, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2012 | - | |
| Sep 1, 2012 | Sep 30, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2012 | - | |
| Sep 1, 2011 | Sep 30, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2011 | - | |
| Sep 1, 2011 | Sep 30, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2011 | - | |
| Oct 1, 2009 | - | MR | No | No | - | TT | - | Resolved | Oct 10, 2010 | - | |
| Oct 1, 2009 | - | MR | No | No | - | TT | - | Resolved | Oct 10, 2010 | - | |
| Oct 1, 2008 | - | MR | No | No | - | TT | - | Resolved | Oct 10, 2010 | - | |
| Oct 1, 2008 | - | MR | No | No | - | TT | - | Resolved | Oct 10, 2010 | - | |
| Apr 20, 2008 | - | Other | No | No | - | - | - | Resolved | May 27, 2009 | - | |
| Apr 20, 2008 | - | Other | No | No | - | - | - | Resolved | May 27, 2009 | - | |
| Mar 1, 2008 | Mar 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2008 | - | |
| Mar 1, 2008 | Mar 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2008 | - | |
| Mar 1, 2008 | Mar 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 2008 | - | |
| Mar 1, 2008 | Mar 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 2008 | - | |
| Aug 1, 2007 | Aug 31, 2007 | Other | No | No | - | 5% of samples | - | Resolved | Aug 31, 2007 | - | |
| Aug 1, 2007 | Aug 31, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2007 | - | |
| Aug 1, 2007 | Aug 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2007 | - | |
| Aug 1, 2007 | Aug 31, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2007 | - |
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.