PROSPECT MOUNTAIN
Massachusetts — Transient Non-Community — PWSID: VT0020671
System Information
| PWSID | VT0020671 |
| System Name | PROSPECT MOUNTAIN |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 01 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Aug 5, 1998 |
| Last Reported | Feb 9, 2026 |
Location & Contact
| State | Massachusetts |
| City | WILLIAMSTOWN |
| ZIP Code | 01267 |
| Address | — |
| Organization | DETHIER, DAVID |
| Phone | 413-884-4578 |
Population & Service
| Population Served | 75 |
| Service Connections | 2 |
Drinking Water Violations (158)
This water system has 158 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2022 | Jun 30, 2022 | MON | No | Yes | — | — | — | Resolved | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MON | No | Yes | — | — | — | Resolved | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MON | No | Yes | — | — | — | Resolved | Jun 30, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MON | No | Yes | — | — | — | Resolved | Jun 30, 2022 | — | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Jan 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Jan 1, 2015 | Mar 31, 2015 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2015 | — | |
| Jan 1, 2015 | Mar 31, 2015 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2015 | — | |
| Jan 1, 2015 | Mar 31, 2015 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2015 | — | |
| Jan 1, 2015 | Mar 31, 2015 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2015 | — | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2012 | — | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2012 | — | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2012 | — | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2012 | — | |
| Jan 1, 2011 | Jan 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2011 | — | |
| Jan 1, 2011 | Jan 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2011 | — | |
| Jan 1, 2011 | Jan 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2011 | — | |
| Jan 1, 2011 | Jan 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2011 | — | |
| Mar 1, 2009 | Mar 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2009 | — | |
| Mar 1, 2009 | Mar 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2009 | — | |
| Mar 1, 2009 | Mar 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2009 | — | |
| Mar 1, 2009 | Mar 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2009 | — | |
| Feb 1, 2009 | Feb 28, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2009 | — | |
| Feb 1, 2009 | Feb 28, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2009 | — | |
| Feb 1, 2009 | Feb 28, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2009 | — | |
| Feb 1, 2009 | Feb 28, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2009 | — | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2008 | — | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2008 | — | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2008 | — | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2008 | — | |
| Jan 1, 2008 | Jan 31, 2008 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 31, 2008 | — | |
| Jan 1, 2008 | Jan 31, 2008 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 31, 2008 | — | |
| Jan 1, 2008 | Jan 31, 2008 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 31, 2008 | — | |
| Jan 1, 2008 | Jan 31, 2008 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 31, 2008 | — |
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.