ST. THOMAS MORE SCHOOL-MAIN SYSTEM
Connecticut — Community Water System — PWSID: CT0861251
System Information
| PWSID | CT0861251 |
| System Name | ST. THOMAS MORE SCHOOL-MAIN SYSTEM |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 01 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Aug 2, 1994 |
| Last Reported | Dec 15, 2025 |
Location & Contact
| State | Connecticut |
| City | OAKDALE |
| ZIP Code | 06370 |
| Address | 45 COTTAGE ROAD |
| Organization | HANRAHAN, SEAN |
| Phone | 860-367-4799 |
Population & Service
| Population Served | 270 |
| Service Connections | 27 |
Drinking Water Violations (135)
This water system has 135 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| May 26, 2024 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 17, 2024 | Public Notice Rule and Revised PN Rule |
| May 26, 2024 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 17, 2024 | Public Notice Rule and Revised PN Rule |
| Jan 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 10, 2023 | Lead and Copper Rule |
| Jan 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 10, 2023 | Lead and Copper Rule |
| Jan 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 10, 2023 | Lead and Copper Rule |
| Jan 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 10, 2023 | Lead and Copper Rule |
| Sep 29, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 30, 2021 | Lead and Copper Rule |
| Sep 29, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 30, 2021 | Lead and Copper Rule |
| Aug 1, 2019 | Jul 31, 2020 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jul 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2019 | Jul 31, 2020 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jul 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2019 | Jul 31, 2020 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jul 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2019 | Jul 31, 2020 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jul 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2019 | Jul 31, 2020 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jul 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2019 | Jul 31, 2020 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jul 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2019 | Jul 31, 2020 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jul 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2019 | Jul 31, 2020 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jul 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jun 28, 2017 | — | Public Notice | Other | No | No | — | — | — | Resolved | Dec 4, 2017 | Public Notice Rule and Revised PN Rule |
| Jun 28, 2017 | — | Public Notice | Other | No | No | — | — | — | Resolved | Dec 4, 2017 | Public Notice Rule and Revised PN Rule |
| Apr 1, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 24, 2017 | Lead and Copper Rule |
| Apr 1, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 24, 2017 | Lead and Copper Rule |
| Jul 1, 2016 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 16, 2016 | Consumer Confidence Rule |
| Jan 1, 2016 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2016 | Lead and Copper Rule |
| Jan 1, 2016 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2016 | Lead and Copper Rule |
| Jan 1, 2016 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2016 | Lead and Copper Rule |
| Jan 1, 2016 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2016 | Lead and Copper Rule |
| Jan 1, 2016 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2016 | Lead and Copper Rule |
| Sep 29, 2015 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 16, 2016 | Lead and Copper Rule |
| Sep 29, 2015 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 16, 2016 | Lead and Copper Rule |
| Jul 1, 2015 | Dec 31, 2015 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2015 | Lead and Copper Rule |
| Jul 1, 2015 | Dec 31, 2015 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2015 | Lead and Copper Rule |
| Jul 1, 2015 | Dec 31, 2015 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2015 | Lead and Copper Rule |
| Jul 1, 2015 | Dec 31, 2015 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2015 | Lead and Copper Rule |
| Apr 1, 2015 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 16, 2016 | Lead and Copper Rule |
| Apr 1, 2015 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 16, 2016 | Lead and Copper Rule |
| Sep 29, 2014 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 16, 2016 | Lead and Copper Rule |
| Sep 29, 2014 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 16, 2016 | Lead and Copper Rule |
| Aug 10, 2014 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 7, 2014 | Consumer Confidence Rule |
| Aug 10, 2014 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 7, 2014 | Consumer Confidence Rule |
| Jul 1, 2014 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 30, 2014 | Consumer Confidence Rule |
| Jul 1, 2014 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 30, 2014 | Consumer Confidence Rule |
| Apr 1, 2014 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 16, 2016 | Lead and Copper Rule |
| Apr 1, 2014 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 16, 2016 | Lead and Copper Rule |
| Mar 2, 2014 | — | Lead and Copper Rule | TT | Yes | No | — | TT | — | Resolved | Feb 16, 2016 | Lead and Copper Rule |
| Mar 2, 2014 | — | Lead and Copper Rule | TT | Yes | No | — | TT | — | Resolved | Feb 16, 2016 | Lead and Copper Rule |
| Jan 1, 2014 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 16, 2016 | Lead and Copper Rule |
| Jan 1, 2014 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 16, 2016 | Lead and Copper Rule |
| Jan 1, 2014 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 16, 2016 | Lead and Copper Rule |
| Jan 1, 2014 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 16, 2016 | Lead and Copper Rule |
| Aug 30, 2013 | — | Lead and Copper Rule | TT | Yes | No | — | TT | — | Resolved | Feb 16, 2016 | Lead and Copper Rule |
| Aug 30, 2013 | — | Lead and Copper Rule | TT | Yes | No | — | TT | — | Resolved | Feb 16, 2016 | Lead and Copper Rule |
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.