OAK GROVE MONTESSORI SCHOOL
Connecticut - Non-Transient Non-Community - PWSID: CT0781263
System Information
| PWSID | CT0781263 |
| System Name | OAK GROVE MONTESSORI SCHOOL |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 01 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Mar 13, 1995 |
| Last Reported | Mar 30, 2026 |
Location & Contact
| State | Connecticut |
| City | MANSFIELD CENTER |
| ZIP Code | 06250 |
| Address | 132 Pleasant Valley Road |
| Organization | PAHL, LEELA |
| Phone | 860-456-1031 |
Population & Service
| Population Served | 77 |
| Service Connections | 1 |
Drinking Water Violations (67)
This water system has 67 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 17, 2024 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Oct 1, 2021 | Dec 31, 2021 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2021 | - | |
| Oct 1, 2021 | Dec 31, 2021 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2021 | - | |
| Oct 1, 2021 | Dec 31, 2021 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2021 | - | |
| Oct 1, 2021 | Dec 31, 2021 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2021 | - | |
| Dec 30, 2018 | - | MR | No | No | - | TT | - | Resolved | May 3, 2019 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2010 | - | |
| Jul 1, 2002 | Jul 31, 2002 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2002 | - | |
| Jul 1, 2002 | Jul 31, 2002 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2002 | - | |
| Apr 1, 2002 | Jun 30, 2002 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2002 | - | |
| Apr 1, 2002 | Jun 30, 2002 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2002 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | - | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | - | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | - | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | - | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Jan 1, 1995 | Dec 31, 1997 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Dec 31, 1997 | - |
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.