MT GREYLOCK REGIONAL SCHOOL
Massachusetts — Non-Transient Non-Community — PWSID: MA1341010
System Information
| PWSID | MA1341010 |
| System Name | MT GREYLOCK REGIONAL SCHOOL |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 01 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Feb 29, 1980 |
| Last Reported | Mar 17, 2026 |
Location & Contact
| State | Massachusetts |
| City | WILLIAMSTOWN |
| ZIP Code | 01267 |
| Address | ATTN DIRECTOR OF BUILDINGS AND GROUNDS |
| Organization | MT. GREYLOCK REGIONAL SCHOOL DISTRICT |
| Phone | 4134589582 |
Population & Service
| Population Served | 930 |
| Service Connections | 1 |
Drinking Water Violations (88)
This water system has 88 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2019 | Dec 31, 2019 | MR | No | No | — | — | — | Archived | Dec 31, 2019 | — | |
| Jul 1, 2018 | Jul 31, 2018 | MON | No | No | — | — | — | Resolved | Jul 31, 2018 | — | |
| Jul 1, 2018 | Jul 31, 2018 | MON | No | No | — | — | — | Resolved | Jul 31, 2018 | — | |
| Jan 1, 2011 | — | MR | No | No | — | TT | — | Resolved | Feb 20, 2014 | — | |
| Jan 1, 2011 | — | MR | No | No | — | TT | — | Resolved | Feb 20, 2014 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.5 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.006 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.002 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.002 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.05 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.05 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.1 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.1 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.04 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.04 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.004 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.004 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.003 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.003 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.04 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.04 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.2 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.5 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.001 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.001 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.02 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.02 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.0004 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.0004 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.2 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.002 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.002 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.0005 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.0005 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.0002 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.0002 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.00005 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.05 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.003 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.003 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.001 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.001 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.2 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.0002 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.0002 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.05 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.00005 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.07 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | 0.07 mg/L | — | Resolved | Jun 30, 2009 | — | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | No | — | — | — | Resolved | Jun 30, 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.