Public Water Partners

SHELTON, CT · Fairfield County

AQUARION-GREENWICH Water System

Consumer Confidence Report status

AQUARION-GREENWICH 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 AQUARION-GREENWICH.

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)
CT0570011
System type
Community Water System
Population served
53,297
Service connections
17,060
Ownership
privately owned
Water source
surface water (rivers, lakes, or reservoirs)

AQUARION-GREENWICH is among the 11 largest community water systems in Connecticut, serving 53,297 people from surface water.

As of August 1, 2026, its federal record holds 22 entries between 1979 and 2019, all of which EPA lists as closed. Nothing has been added since 2019.

Of the 22, 19 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, 2019 – January 16, 2020

    Resolved

  • Monitoring and Reporting (DBP)

    —

    CARBON, TOTAL

    November 1, 2018 – November 30, 2018

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2018 – July 9, 2018

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2018 – December 31, 2018

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2018 – December 31, 2018

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2018 – December 31, 2018

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2018 – December 31, 2018

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2018 – December 31, 2018

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 2018 – December 31, 2018

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2018 – December 31, 2018

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2018 – December 31, 2018

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2018 – December 31, 2018

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2018 – December 31, 2018

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2018 – December 31, 2018

    Resolved

  • Monitoring, Regular

    —

    Toluene

    January 1, 2018 – December 31, 2018

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2018 – December 31, 2018

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2018 – December 31, 2018

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2018 – December 31, 2018

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2018 – December 31, 2018

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2018 – December 31, 2018

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2006 – July 13, 2006

    Resolved

  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Fluoride

    October 31, 1979 – November 30, 1979

    Archived

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 AQUARION-GREENWICH required to publish a Consumer Confidence Report?

Yes. AQUARION-GREENWICH 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 AQUARION-GREENWICH’s next Consumer Confidence Report due?

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

Does AQUARION-GREENWICH have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for AQUARION-GREENWICH.

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

ULRICH, ROBERT J.

203-926-4320

SHELTON, CT 06484