Public Water Partners

MONSEY, CT · New London County

COLCHESTER ESTATES Water System

Consumer Confidence Report status

COLCHESTER ESTATES must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show 1 open health-based violation for COLCHESTER ESTATES, alongside 2 other open items.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)
CT0280041
System type
Community Water System
Population served
276
Service connections
92
Ownership
privately owned
Water source
groundwater (wells)

COLCHESTER ESTATES is one of 799 community water systems in Connecticut in the 500 or fewer people size category, serving 276 people from groundwater.

As of August 1, 2026, its federal record holds 59 entries between 1994 and 2024, of which 1 health-based item remains open, alongside 2 other open entries.

Of the 59, 38 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, the Consumer Confidence Rule, and the Lead and Copper Rule.

Violation history

  • Lead Consumer Notice

    Lead and Copper Rule

    December 30, 2024 – December 31, 2024

    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
  • Monitoring, Regular

    Nitrite

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2023 – December 31, 2023

    Resolved
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    August 10, 2022 – October 12, 2022

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    December 29, 2021 – March 11, 2022

    Resolved
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    August 10, 2021 – August 16, 2021

    Resolved
  • Monitoring, Regular

    Carbon tetrachloride

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    January 1, 2021 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Combined Uranium

    January 1, 2021 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    January 1, 2021 – December 31, 2023

    Resolved
  • Monitoring, Regular

    1,2,4-Trichlorobenzene

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring, Regular

    DICHLOROMETHANE

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring, Regular

    o-Dichlorobenzene

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring, Regular

    p-Dichlorobenzene

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring, Regular

    Vinyl chloride

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring, Regular

    1,1-Dichloroethylene

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring, Regular

    1,1,1-Trichloroethane

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring, Regular

    1,2-Dichloropropane

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring, Regular

    Trichloroethylene

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring, Regular

    1,1,2-Trichloroethane

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring, Regular

    Benzene

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring, Regular

    Toluene

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring, Regular

    Ethylbenzene

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring, Regular

    Styrene

    January 1, 2021 – December 31, 2023

    Archived
  • Monitoring and Reporting (DBP)

    TTHM

    September 1, 2019 – August 31, 2020

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    September 1, 2019 – August 31, 2020

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    January 9, 2019 – April 9, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    January 9, 2019 – April 9, 2019

    Resolved
  • Lead Consumer Notice

    Lead and Copper Rule

    December 30, 2018 – March 13, 2019

    Resolved
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    August 10, 2018 – August 8, 2018

    Resolved
  • Lead Consumer Notice

    Lead and Copper Rule

    December 30, 2017 – February 23, 2018

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    August 1, 2017 – August 31, 2017

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2017

    Unaddressed
  • Monitoring and Reporting (DBP)

    Chlorine

    July 1, 2017 – September 30, 2017

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2016 – July 1, 2016

    Resolved
  • Lead Consumer Notice

    Lead and Copper Rule

    December 30, 2015 – February 16, 2016

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    August 31, 2015 – August 30, 2016

    Archived
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2010 – July 12, 2010

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    July 1, 2009 – July 31, 2009

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    December 1, 2006 – December 31, 2006

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    April 1, 2005 – June 30, 2005

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    January 1, 2005 – March 31, 2005

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    October 1, 2004 – December 31, 2004

    Resolved
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    August 9, 2004 – October 27, 2005

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2004 – October 27, 2005

    Resolved
  • Notification, Public

    Styrene

    March 1, 1994 – March 31, 1994

    Resolved
  • Notification, Public

    o-Chlorotoluene

    March 1, 1994 – March 31, 1994

    Resolved
  • Notification, Public

    1,2-DIBROMO-3-CHLOROPROPANE

    March 1, 1994 – March 31, 1994

    Resolved
  • Notification, Public

    1,1-Dichloropropene

    March 1, 1994 – March 31, 1994

    Resolved
  • Notification, Public

    p-Chlorotoluene

    March 1, 1994 – March 31, 1994

    Resolved
  • Notification, Public

    Carbon tetrachloride

    March 1, 1994 – March 31, 1994

    Resolved
  • Notification, Public

    1,2-Dichloropropane

    March 1, 1994 – March 31, 1994

    Resolved
  • Notification, Public

    Nitrate

    March 1, 1994 – March 31, 1994

    Resolved
  • Notification, Public

    1,1,2-Trichloroethane

    March 1, 1994 – March 31, 1994

    Resolved

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

Common questions

Is COLCHESTER ESTATES required to publish a Consumer Confidence Report?

Yes. COLCHESTER ESTATES is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is COLCHESTER ESTATES’s next Consumer Confidence Report due?

COLCHESTER ESTATES’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does COLCHESTER ESTATES have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show 1 open health-based violation for COLCHESTER ESTATES, alongside 2 other open items.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

MARKOWITZ, HILLEL

845-323-8342

MONSEY, NY 10952