Public Water Partners

CLINTON, CT · Hartford County

CTWC - NORTHERN REG-WESTERN SYSTEM Water System

Consumer Confidence Report status

CTWC - NORTHERN REG-WESTERN 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 1 item for CTWC - NORTHERN REG-WESTERN SYSTEM that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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)
CT0473011
System type
Community Water System
Population served
101,313
Service connections
37,354
Ownership
privately owned
Water source
surface water (rivers, lakes, or reservoirs)

CTWC - NORTHERN REG-WESTERN SYSTEM is among the 6 largest community water systems in Connecticut, serving 101,313 people from surface water.

As of August 1, 2026, its federal record holds 48 entries between 2005 and 2024, of which 1 remains open; none are health-based.

Of the 48, 46 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 the Radionuclides and Revised Rad Rule.

Violation history

  • Public Notification Violation without NPDWR Violation

    Public Notice

    December 14, 2024 – December 14, 2024

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    June 8, 2018

    Unaddressed
  • Monitoring, Source Water (GWR)

    E. COLI

    July 16, 2014 – December 3, 2014

    Resolved
  • Monitoring, Repeat Minor (TCR)

    Coliform (TCR)

    July 1, 2014 – July 31, 2014

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    January 1, 2014 – December 31, 2016

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    January 1, 2014 – December 31, 2016

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    January 1, 2014 – December 31, 2016

    Resolved
  • Monitoring, Regular

    1,2,4-Trichlorobenzene

    January 1, 2014 – December 31, 2016

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    January 1, 2014 – December 31, 2016

    Resolved
  • Monitoring, Regular

    Combined Uranium

    January 1, 2014 – December 31, 2016

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    January 1, 2014 – December 31, 2016

    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

    Combined Radium (-226 and -228)

    July 1, 2012 – September 30, 2012

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    July 1, 2012 – September 30, 2012

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    July 1, 2008 – September 30, 2008

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    July 1, 2008 – September 30, 2008

    Resolved
  • Monitoring, Regular

    Combined Uranium

    July 1, 2008 – September 30, 2008

    Resolved
  • Monitoring, Regular

    Gross Beta Particle Activity

    July 1, 2008 – September 30, 2008

    Resolved
  • Monitoring, Regular

    Benzene

    July 1, 2008 – September 30, 2008

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    July 1, 2008 – September 30, 2008

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    July 1, 2008 – September 30, 2008

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    July 1, 2008 – September 30, 2008

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    April 1, 2007 – June 30, 2007

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    April 1, 2007 – June 30, 2007

    Resolved
  • Monitoring, Regular

    Nitrate

    July 1, 2006 – September 30, 2006

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    July 1, 2006 – September 30, 2006

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    July 1, 2006 – September 30, 2006

    Resolved
  • Monitoring, Regular

    Nitrate

    July 1, 2006 – July 31, 2006

    Resolved
  • Monitoring, Regular

    Barium

    January 1, 2006 – July 23, 2008

    Resolved
  • Monitoring, Regular

    Fluoride

    January 1, 2006 – July 23, 2008

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2006 – July 23, 2008

    Resolved
  • Monitoring, Regular

    Fluoride

    January 1, 2006 – July 23, 2008

    Resolved
  • Monitoring, Regular

    Heptachlor epoxide

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Atrazine

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Carbofuran

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Aldicarb sulfoxide

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Diquat

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Dalapon

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Chlordane

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Benzo(a)pyrene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    LASSO

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Aldicarb sulfone

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Aldicarb sulfoxide

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Dinoseb

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Simazine

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 2005 – December 31, 2007

    Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Enforcement actions

No enforcement actions on record for this system.

Common questions

Is CTWC - NORTHERN REG-WESTERN SYSTEM required to publish a Consumer Confidence Report?

Yes. CTWC - NORTHERN REG-WESTERN 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 CTWC - NORTHERN REG-WESTERN SYSTEM’s next Consumer Confidence Report due?

CTWC - NORTHERN REG-WESTERN SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does CTWC - NORTHERN REG-WESTERN SYSTEM have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show 1 item for CTWC - NORTHERN REG-WESTERN SYSTEM that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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

LOWRY, PAUL C.

860-944-9655

CLINTON, CT 06413