OAKDALE, CT · New London County

ST. THOMAS MORE SCHOOL-MAIN SYSTEM Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Connecticut’s official records. Always confirm current status with Connecticut before making decisions based on this information.

System facts

System ID (PWSID): CT0861251
System type: Community Water System
Population served: 270
Service connections: 27
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
May 26, 2024 – July 17, 2024
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2023 – January 10, 2023
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
September 29, 2021 – December 30, 2021
Resolved
Monitoring and Reporting (DBP)
—
TTHM
August 1, 2019 – July 31, 2020
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
August 1, 2019 – July 31, 2020
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
June 28, 2017 – December 4, 2017
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
April 1, 2017 – May 24, 2017
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2016 – September 16, 2016
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2016 – June 30, 2016
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
September 29, 2015 – February 16, 2016
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2015 – December 31, 2015
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
April 1, 2015 – February 16, 2016
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
September 29, 2014 – February 16, 2016
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
August 10, 2014 – August 7, 2014
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2014 – June 30, 2014
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
April 1, 2014 – February 16, 2016
Resolved
Public Education
Health-based
Lead and Copper Rule
March 2, 2014 – February 16, 2016
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
January 1, 2014 – February 16, 2016
Resolved
Public Education
Health-based
Lead and Copper Rule
August 30, 2013 – February 16, 2016
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2013 – December 31, 2013
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2013 – June 30, 2013
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
March 31, 2012 – February 16, 2016
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
September 29, 2011 – February 16, 2016
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
September 29, 2010 – February 16, 2016
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2008 – November 26, 2008
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2007 – July 12, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2001 – September 30, 2001
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 1994 – March 29, 1996
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
May 26, 2024 – July 17, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2023 – January 10, 2023	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
September 29, 2021 – December 30, 2021	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
August 1, 2019 – July 31, 2020	Monitoring and Reporting (DBP)	TTHM	—	Resolved
August 1, 2019 – July 31, 2020	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
June 28, 2017 – December 4, 2017	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2017 – May 24, 2017	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2016 – September 16, 2016	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2016 – June 30, 2016	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
September 29, 2015 – February 16, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2015 – December 31, 2015	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
April 1, 2015 – February 16, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
September 29, 2014 – February 16, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
August 10, 2014 – August 7, 2014	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2014 – June 30, 2014	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2014 – February 16, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
March 2, 2014 – February 16, 2016	Public Education	Lead and Copper Rule	Health-based	Resolved
January 1, 2014 – February 16, 2016	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
August 30, 2013 – February 16, 2016	Public Education	Lead and Copper Rule	Health-based	Resolved
July 1, 2013 – December 31, 2013	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2013 – June 30, 2013	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
March 31, 2012 – February 16, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
September 29, 2011 – February 16, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
September 29, 2010 – February 16, 2016	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
October 1, 2008 – November 26, 2008	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2007 – July 12, 2007	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2001 – September 30, 2001	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1994 – March 29, 1996	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

December 8, 2025State Public Notification received3 linked violations
September 25, 2025State Public Notification requested2 linked violations
July 16, 2024State Violation/Reminder Notice3 linked violations
May 26, 2023State Public Notification requested4 linked violations
January 15, 2021State Public Notification received4 linked violations
December 31, 2020State Compliance achieved6 linked violations
September 30, 2020State Violation/Reminder Notice5 linked violations
November 15, 2017State Violation/Reminder Notice4 linked violations
May 24, 2017State Compliance achieved4 linked violations
September 16, 2016State Compliance achieved4 linked violations
June 30, 2016State Compliance achieved5 linked violations
February 16, 2016State Public Notification received7 linked violations
February 16, 2016State Compliance achieved12 linked violations
February 16, 2016State Compliance achieved8 linked violations
February 4, 2016State Public Notification requested5 linked violations
August 7, 2014State Compliance achieved5 linked violations
November 26, 2008State Compliance achieved6 linked violations
October 17, 2006State Violation/Reminder Notice3 linked violations
August 10, 2006State Compliance achieved8 linked violations
December 31, 2002State Compliance achieved6 linked violations
March 1, 1996State Public Notification requested6 linked violations
February 8, 1996State Public Notification requested9 linked violations
January 22, 1996State Public Notification requested5 linked violations
October 6, 1995State Public Notification requested5 linked violations
October 6, 1995State Violation/Reminder Notice6 linked violations
September 15, 1995State Public Notification requested4 linked violations

Contact

HANRAHAN, SEAN

860-367-4799

OAKDALE, CT 06370