CHILMARK SCHOOL
Massachusetts - Non-Transient Non-Community - PWSID: MA4062008
System Information
| PWSID | MA4062008 |
| System Name | CHILMARK 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 | Aug 9, 2000 |
| Last Reported | Jun 22, 2026 |
Location & Contact
| State | Massachusetts |
| City | CHILMARK |
| ZIP Code | 02535 |
| Address | P.O. BOX 60 |
| Organization | CHILMARK SCHOOL |
| Phone | 5086452562 |
Population & Service
| Population Served | 90 |
| Service Connections | - |
Drinking Water Violations (87)
This water system has 87 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 1, 2021 | - | MR | No | No | - | TT | - | Addressed | - | - | |
| Nov 7, 2020 | - | Other | No | No | - | - | - | Resolved | Apr 29, 2022 | - | |
| Nov 7, 2020 | - | Other | No | No | - | - | - | Resolved | Apr 29, 2022 | - | |
| Oct 8, 2020 | - | TT | Yes | No | - | - | - | Resolved | Apr 29, 2022 | - | |
| Oct 8, 2020 | - | TT | Yes | No | - | - | - | Resolved | Apr 29, 2022 | - | |
| Oct 8, 2020 | - | TT | Yes | No | - | - | - | Resolved | Apr 29, 2022 | - | |
| Oct 1, 2020 | - | MR | No | No | - | TT | - | Addressed | - | - | |
| Oct 1, 2020 | - | MR | No | No | - | TT | - | Addressed | - | - | |
| Oct 1, 2019 | - | MR | No | No | - | TT | - | Addressed | - | - | |
| Oct 1, 2019 | - | MR | No | No | - | TT | - | Addressed | - | - | |
| Oct 1, 2012 | - | MR | No | No | - | TT | - | Resolved | Sep 6, 2013 | - | |
| Oct 1, 2012 | - | MR | No | No | - | TT | - | Resolved | Sep 6, 2013 | - | |
| Oct 1, 2011 | - | MR | No | No | - | TT | - | Resolved | Sep 6, 2013 | - | |
| Oct 1, 2011 | - | MR | No | No | - | TT | - | Resolved | Sep 6, 2013 | - | |
| Sep 1, 2010 | Sep 30, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2010 | - | |
| Sep 1, 2010 | Sep 30, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2010 | - | |
| Sep 1, 2010 | Sep 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2010 | - | |
| Sep 1, 2010 | Sep 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.1 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.007 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.007 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.005 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.005 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.005 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.1 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.1 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.002 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.002 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.1 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.005 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.005 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.07 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.07 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 1 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 1 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.005 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.005 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.005 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.005 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.005 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.005 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.2 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.2 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.6 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.6 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.07 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 10 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.07 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.005 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MR | No | No | - | 0.7 mg/L | - | Resolved | Jun 30, 2010 | - |
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.