DANBURY, CT · Fairfield County

CORNELL HILLS ASSOC, INC Water System

Current status

1 open health-based violation on record as of July 4, 2026, alongside 3 other open item(s). See the violation history below for contaminant and status details.

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): CT0340181
System type: Community Water System
Population served: 108
Service connections: 27
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2025 – July 3, 2025
Resolved
LSL Reporting
—
LEAD AND COPPER RULE REVISIONS
October 17, 2024
Unaddressed
LSL Inventory
Health-based
LEAD AND COPPER RULE REVISIONS
October 17, 2024
Unaddressed
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
August 10, 2023 – August 29, 2023
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2023 – August 29, 2023
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
December 1, 2022 – December 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
December 1, 2022 – December 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
November 1, 2022 – November 30, 2022
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
November 1, 2022 – November 30, 2022
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
October 1, 2022 – October 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2022 – October 31, 2022
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2022 – June 9, 2023
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
September 1, 2022 – September 30, 2022
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
September 1, 2022 – September 30, 2022
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
August 1, 2022 – August 31, 2022
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
August 1, 2022 – August 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
TTHM
September 1, 2021 – August 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
September 1, 2021 – August 31, 2022
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
November 13, 2020 – March 17, 2023
Resolved
Monitoring and Reporting (DBP)
—
TTHM
September 1, 2018 – August 31, 2019
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
September 1, 2018 – August 31, 2019
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2018 – July 6, 2018
Resolved
Monitoring and Reporting (DBP)
—
TTHM
September 1, 2017 – August 31, 2018
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2016 – July 1, 2016
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – July 10, 2013
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
August 10, 2011 – July 5, 2012
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2011 – March 22, 2023
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 15, 2011
Unaddressed
Public Notification Violation for NPDWR Violation
—
Public Notice
April 15, 2011
Unaddressed
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2010 – December 31, 2010
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2010 – December 31, 2010
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2010 – December 31, 2010
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2010 – July 27, 2010
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
August 10, 2009 – August 21, 2009
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2009 – August 21, 2009
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
August 10, 2008 – September 3, 2008
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2008 – September 3, 2008
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
August 10, 2006 – November 8, 2006
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2006 – November 8, 2006
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2004 – November 8, 2004
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2004 – December 31, 2004
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2004 – December 31, 2004
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 1997 – June 30, 1997
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 1994 – March 22, 1996
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
January 1, 1994 – March 22, 1996
Archived

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2025 – July 3, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 17, 2024	LSL Reporting	LEAD AND COPPER RULE REVISIONS	—	Unaddressed
October 17, 2024	LSL Inventory	LEAD AND COPPER RULE REVISIONS	Health-based	Unaddressed
August 10, 2023 – August 29, 2023	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2023 – August 29, 2023	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
December 1, 2022 – December 31, 2022	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
December 1, 2022 – December 31, 2022	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
November 1, 2022 – November 30, 2022	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
November 1, 2022 – November 30, 2022	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2022 – October 31, 2022	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2022 – October 31, 2022	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2022 – June 9, 2023	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
September 1, 2022 – September 30, 2022	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
September 1, 2022 – September 30, 2022	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
August 1, 2022 – August 31, 2022	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
August 1, 2022 – August 31, 2022	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
September 1, 2021 – August 31, 2022	Monitoring and Reporting (DBP)	TTHM	—	Resolved
September 1, 2021 – August 31, 2022	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
November 13, 2020 – March 17, 2023	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
September 1, 2018 – August 31, 2019	Monitoring and Reporting (DBP)	TTHM	—	Resolved
September 1, 2018 – August 31, 2019	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2018 – July 6, 2018	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
September 1, 2017 – August 31, 2018	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2016 – July 1, 2016	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2013 – July 10, 2013	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
August 10, 2011 – July 5, 2012	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2011 – March 22, 2023	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 15, 2011	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
April 15, 2011	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
December 1, 2010 – December 31, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 2010 – December 31, 2010	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2010 – July 27, 2010	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
August 10, 2009 – August 21, 2009	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2009 – August 21, 2009	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
August 10, 2008 – September 3, 2008	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2008 – September 3, 2008	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
August 10, 2006 – November 8, 2006	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2006 – November 8, 2006	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2004 – November 8, 2004	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 1997 – June 30, 1997	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
July 1, 1994 – March 22, 1996	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
January 1, 1994 – March 22, 1996	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Archived

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

July 3, 2025State Compliance achieved1 linked violation
August 29, 2023State Violation/Reminder Notice1 linked violation
August 29, 2023State Compliance achieved1 linked violation
August 29, 2023State Compliance achieved1 linked violation
August 24, 2023State Violation/Reminder Notice1 linked violation
March 23, 2023State Compliance achieved2 linked violations
March 17, 2023State Public Notification received7 linked violations
March 17, 2023State Public Notification received3 linked violations
March 17, 2023State Public Notification received4 linked violations
March 17, 2023State Public Notification received2 linked violations
March 17, 2023State Public Notification received3 linked violations
March 6, 2023State Public Notification requested1 linked violation
March 6, 2023State Violation/Reminder Notice1 linked violation
March 6, 2023State Violation/Reminder Notice1 linked violation
March 6, 2023State Public Notification requested1 linked violation
January 27, 2023State Violation/Reminder Notice1 linked violation
January 27, 2023State Public Notification requested2 linked violations
January 27, 2023State Public Notification requested2 linked violations
January 27, 2023State Violation/Reminder Notice2 linked violations
January 27, 2023State Public Notification requested2 linked violations
January 27, 2023State Violation/Reminder Notice2 linked violations
January 27, 2023State Public Notification requested2 linked violations
January 27, 2023State Violation/Reminder Notice2 linked violations
January 27, 2023State Public Notification requested2 linked violations
January 27, 2023State Violation/Reminder Notice2 linked violations
January 27, 2023State Public Notification requested2 linked violations
January 27, 2023State Violation/Reminder Notice2 linked violations
January 27, 2023State Violation/Reminder Notice2 linked violations
January 27, 2023State Public Notification requested6 linked violations
January 27, 2023State Violation/Reminder Notice2 linked violations
January 27, 2023State Public Notification requested2 linked violations
January 27, 2023State Violation/Reminder Notice1 linked violation
January 27, 2023State Public Notification requested1 linked violation
December 31, 2022State Compliance achieved2 linked violations
December 31, 2022State Compliance achieved1 linked violation
December 31, 2022State Compliance achieved2 linked violations
December 31, 2022State Compliance achieved3 linked violations
December 31, 2022State Compliance achieved2 linked violations
December 31, 2022State Compliance achieved2 linked violations
December 31, 2022State Compliance achieved1 linked violation
December 31, 2020State Compliance achieved8 linked violations
March 10, 2020State Public Notification requested3 linked violations
January 8, 2019State Compliance achieved6 linked violations
July 6, 2018State Compliance achieved6 linked violations
May 2, 2018State Intentional no-action3 linked violations
July 10, 2013State Compliance achieved4 linked violations
August 8, 2012State Violation/Reminder Notice3 linked violations
July 5, 2012State Compliance achieved2 linked violations
March 15, 2011State Violation/Reminder Notice5 linked violations
January 31, 2011State Compliance achievedgeneral compliance action — not tied to a specific violation on record
January 31, 2011State Compliance achieved2 linked violations
November 4, 2010State Violation/Reminder Notice2 linked violations
July 27, 2010State Compliance achieved2 linked violations
October 21, 2009State Violation/Reminder Notice4 linked violations
August 21, 2009State Compliance achieved7 linked violations
September 4, 2008State Violation/Reminder Notice1 linked violation
September 4, 2008State Public Notification requested2 linked violations
August 2, 2008State Public Notification received1 linked violation
October 31, 2006State Violation/Reminder Notice15 linked violations
July 5, 2006State Public Notification requested2 linked violations
December 31, 2005State Compliance achieved5 linked violations
December 28, 2004State Compliance achieved2 linked violations
November 8, 2004State Compliance achieved4 linked violations
January 9, 2003State Compliance achieved3 linked violations
March 14, 1994State Compliance achieved5 linked violations

Contact

LICARI, JOSEPH P.

203-628-0935

DANBURY, CT 06811