Public Water Partners

BRANFORD, CT · New Haven County

QUONNIPAUG HILLS - MAIN SYSTEM Water System

Consumer Confidence Report status

QUONNIPAUG HILLS - MAIN SYSTEM 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 no open violations for QUONNIPAUG HILLS - MAIN SYSTEM.

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)
CT0600041
System type
Community Water System
Population served
564
Service connections
187
Ownership
privately owned
Water source
groundwater (wells)

QUONNIPAUG HILLS - MAIN SYSTEM is one of 84 community water systems in Connecticut in the 501 to 3,300 people size category, serving 564 people from groundwater.

As of August 1, 2026, its federal record holds 80 entries between 2004 and 2019, all of which EPA lists as closed. Nothing has been added since 2019.

Of the 80, 65 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, synthetic organic chemicals, and inorganic chemicals.

Violation history

  • Monitoring and Reporting (DBP)

    Chlorine

    July 1, 2019 – August 31, 2019

    Resolved
  • Failure to Conduct Assessment Monitoring

    E. COLI

    February 1, 2019 – February 28, 2019

    Resolved
  • Failure to Conduct Assessment Monitoring

    E. COLI

    February 1, 2019 – February 28, 2019

    Resolved
  • Failure to Conduct Assessment Monitoring

    E. COLI

    February 1, 2019 – February 28, 2019

    Resolved
  • Monitoring, Regular

    Toluene

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    Benzene

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    Carbon tetrachloride

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    Styrene

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    1,2,4-Trichlorobenzene

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    p-Dichlorobenzene

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    January 1, 2019 – March 31, 2019

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    October 1, 2018 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Carbon tetrachloride

    October 1, 2018 – December 31, 2018

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    October 1, 2018 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    October 1, 2018 – December 31, 2018

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    October 1, 2018 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    October 1, 2018 – December 31, 2018

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    October 1, 2018 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Toluene

    October 1, 2018 – December 31, 2018

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    October 1, 2018 – December 31, 2018

    Resolved
  • Monitoring, Regular

    DICHLOROMETHANE

    October 1, 2018 – December 31, 2018

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    October 1, 2018 – December 31, 2018

    Resolved
  • Monitoring, Regular

    p-Dichlorobenzene

    October 1, 2018 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    October 1, 2018 – December 31, 2018

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    October 1, 2018 – December 31, 2018

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    October 1, 2018 – December 31, 2018

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    October 1, 2018 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) phthalate

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Antimony, Total

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Beryllium, Total

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Thallium, Total

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Selenium

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    BHC-GAMMA

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Methoxychlor

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Toxaphene

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Aldicarb sulfoxide

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Aldicarb sulfone

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Carbofuran

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Aldicarb

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Atrazine

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    2,4,5-TP

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Endrin

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Combined Uranium

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Barium

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Cadmium

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    CYANIDE

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Fluoride

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Mercury

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Nickel

    January 1, 2017 – December 31, 2019

    Resolved
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    August 10, 2016 – August 15, 2016

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2014 – July 21, 2014

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    June 1, 2013 – June 30, 2013

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    October 1, 2011 – October 31, 2011

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    August 1, 2011 – August 31, 2011

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    July 14, 2011 – July 12, 2011

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    July 1, 2011 – July 31, 2011

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    June 1, 2011 – June 30, 2011

    Resolved
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    August 10, 2009 – October 15, 2009

    Resolved
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    August 10, 2008 – December 17, 2008

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    February 1, 2007 – February 28, 2007

    Archived
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    December 1, 2006 – December 31, 2006

    Archived
  • Public Notification Violation for NPDWR Violation

    Public Notice

    October 9, 2004 – November 30, 2004

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 2004 – September 30, 2004

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    August 1, 2004 – August 31, 2004

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    April 1, 2004 – June 30, 2004

    Resolved

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

Enforcement actions

Common questions

Is QUONNIPAUG HILLS - MAIN SYSTEM required to publish a Consumer Confidence Report?

Yes. QUONNIPAUG HILLS - MAIN SYSTEM 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 QUONNIPAUG HILLS - MAIN SYSTEM’s next Consumer Confidence Report due?

QUONNIPAUG HILLS - MAIN SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does QUONNIPAUG HILLS - MAIN SYSTEM have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for QUONNIPAUG HILLS - MAIN SYSTEM.

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

EDWARDS, NICOLE

203-415-4316

BRANFORD, CT 06405