EAST HAMPTON, CT · Middlesex County

MALLARD COVE CONDOMINIUM ASSN. 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): CT0427011
System type: Community Water System
Population served: 177
Service connections: 59
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
August 10, 2025 – October 17, 2025
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Combined Uranium
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 2025 – September 30, 2025
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2025 – December 31, 2025
Archived
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2025 – December 31, 2025
Archived
Lead Consumer Notice
—
Lead and Copper Rule
September 29, 2024 – October 20, 2024
Resolved
Failure To Address Contamination
Health-based
Groundwater Rule
September 23, 2024 – June 25, 2025
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
August 10, 2024 – September 3, 2024
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
March 31, 2024 – May 21, 2024
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
August 10, 2023 – June 30, 2023
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2023 – June 30, 2023
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
April 1, 2023 – December 15, 2022
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2022 – September 9, 2025
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
April 1, 2022 – January 1, 2022
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
September 29, 2021 – July 31, 2021
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
August 10, 2021 – June 30, 2022
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
April 1, 2021 – January 31, 2021
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 2021 – April 23, 2021
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
September 29, 2020 – July 31, 2020
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
September 20, 2020 – August 29, 2022
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
September 20, 2020 – December 4, 2025
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
August 10, 2020 – June 30, 2021
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2019 – December 31, 2019
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
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
July 10, 2019 – August 14, 2019
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 2019 – October 18, 2019
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 13, 2019 – March 12, 2019
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2016 – September 1, 2022
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
August 1, 2016 – July 31, 2017
Resolved
Monitoring and Reporting (DBP)
—
TTHM
August 1, 2016 – July 31, 2017
Resolved
Monitoring, Regular
—
Styrene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Toluene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Benzene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2013 – December 31, 2015
Resolved
Monitoring, Regular
—
Selenium
January 1, 2013 – December 31, 2015
Resolved
Monitoring, Regular
—
Mercury
January 1, 2013 – December 31, 2015
Resolved
Monitoring, Regular
—
Barium
January 1, 2013 – December 31, 2015
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2013 – December 31, 2015
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2011 – December 31, 2011
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2004 – December 31, 2004
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2004 – November 30, 2004
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2004 – September 30, 2004
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
August 10, 2004 – November 15, 2004
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2004 – November 15, 2004
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2004 – September 30, 2004
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2004 – June 30, 2004
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2004 – June 30, 2004
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 1998 – December 31, 2001
Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
August 10, 2025 – October 17, 2025	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Combined Uranium	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	TTHM	—	Archived
January 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
September 29, 2024 – October 20, 2024	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
September 23, 2024 – June 25, 2025	Failure To Address Contamination	Groundwater Rule	Health-based	Resolved
August 10, 2024 – September 3, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
March 31, 2024 – May 21, 2024	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
August 10, 2023 – June 30, 2023	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2023 – June 30, 2023	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2023 – December 15, 2022	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2022 – September 9, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2022 – January 1, 2022	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
September 29, 2021 – July 31, 2021	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
August 10, 2021 – June 30, 2022	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
April 1, 2021 – January 31, 2021	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2021 – April 23, 2021	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
September 29, 2020 – July 31, 2020	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
September 20, 2020 – August 29, 2022	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
September 20, 2020 – December 4, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
August 10, 2020 – June 30, 2021	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
October 1, 2019 – December 31, 2019	Monitoring and Reporting (DBP)	Chlorine	—	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
July 10, 2019 – August 14, 2019	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2019 – October 18, 2019	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 13, 2019 – March 12, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
December 30, 2016 – September 1, 2022	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
August 1, 2016 – July 31, 2017	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
August 1, 2016 – July 31, 2017	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Styrene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Toluene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Benzene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2013 – December 31, 2015	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 2013 – December 31, 2015	Monitoring, Regular	Selenium	—	Resolved
January 1, 2013 – December 31, 2015	Monitoring, Regular	Mercury	—	Resolved
January 1, 2013 – December 31, 2015	Monitoring, Regular	Barium	—	Resolved
January 1, 2013 – December 31, 2015	Monitoring, Regular	Arsenic	—	Resolved
December 1, 2011 – December 31, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
December 1, 2004 – December 31, 2004	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 2004 – November 30, 2004	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 2004 – September 30, 2004	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 10, 2004 – November 15, 2004	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2004 – November 15, 2004	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2004 – September 30, 2004	Monitoring and Reporting (DBP)	Chlorine	—	Archived
June 1, 2004 – June 30, 2004	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2004 – June 30, 2004	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2002 – December 31, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 1998 – December 31, 2001	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

October 17, 2025State Compliance achieved5 linked violations
September 9, 2025State Compliance achieved1 linked violation
October 17, 2024State Violation/Reminder Notice7 linked violations
May 8, 2024State Violation/Reminder Notice5 linked violations
August 29, 2023State Violation/Reminder Notice5 linked violations
December 15, 2022State Compliance achieved1 linked violation
September 2, 2022State Public Notification received1 linked violation
September 2, 2022State Public Notification received1 linked violation
September 2, 2022State Public Notification received20 linked violations
September 2, 2022State Compliance achieved1 linked violation
September 2, 2022State Public Notification received1 linked violation
September 1, 2022State Compliance achieved1 linked violation
June 30, 2022State Compliance achieved1 linked violation
June 23, 2022State Violation/Reminder Notice1 linked violation
June 23, 2022State Violation/Reminder Notice1 linked violation
January 1, 2022State Compliance achieved1 linked violation
December 2, 2021State Violation/Reminder Notice1 linked violation
December 2, 2021State Violation/Reminder Notice3 linked violations
July 31, 2021State Compliance achieved1 linked violation
April 23, 2021State Compliance achieved2 linked violations
September 10, 2020State Compliance achieved3 linked violations
July 31, 2020State Compliance achieved1 linked violation
June 30, 2020State Compliance achieved4 linked violations
April 22, 2020State Public Notification requested10 linked violations
April 22, 2020State Violation/Reminder Notice4 linked violations
March 11, 2020State Violation/Reminder Notice1 linked violation
January 23, 2020State Compliance achieved2 linked violations
October 18, 2019State Compliance achieved3 linked violations
September 20, 2019State Violation/Reminder Notice2 linked violations
September 20, 2019State Violation/Reminder Notice2 linked violations
September 20, 2019State Public Notification requested2 linked violations
March 12, 2019State Compliance achieved1 linked violation
March 12, 2019State Compliance achieved1 linked violation
March 4, 2019State Violation/Reminder Notice4 linked violations
April 20, 2018State Intentional no-action32 linked violations
January 12, 2018State Violation/Reminder Notice2 linked violations
April 11, 2017State Public Notification requested21 linked violations
March 20, 2017State Compliance achieved41 linked violations
June 2, 2016State Public Notification received41 linked violations
April 13, 2016State Compliance achieved2 linked violations
April 6, 2016State Public Notification requested17 linked violations
March 8, 2012State Violation/Reminder Notice8 linked violations
February 9, 2012State Compliance achieved4 linked violations
November 16, 2006State Violation/Reminder Notice2 linked violations
May 11, 2005State Public Notification requested7 linked violations
April 8, 2005State Administrative/Compliance Order with penalty issued12 linked violations
March 31, 2005State Compliance achieved5 linked violations
January 9, 2003State Compliance achieved6 linked violations
November 7, 2002State Public Notification received8 linked violations
March 18, 2002State Bilateral Compliance Agreement signed10 linked violations

Contact

JENSEN, RITA

860-539-2809

EAST HAMPTON, CT 06424