Public Water Partners

SHELTON, CT · Fairfield County

AQUARION-STAMFORD Water System

Consumer Confidence Report status

AQUARION-STAMFORD 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-STAMFORD.

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)
CT1350011
System type
Community Water System
Population served
119,214
Service connections
21,259
Ownership
privately owned
Water source
surface water (rivers, lakes, or reservoirs)

AQUARION-STAMFORD is the fourth largest community water system in Connecticut, serving 119,214 people from surface water.

As of August 1, 2026, its federal record holds 33 entries between 2016 and 2021, all of which EPA lists as closed. Nothing has been added since 2021.

Of the 33, 32 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 synthetic organic chemicals, the Lead and Copper Rule, and the Consumer Confidence Rule.

Violation history

  • Lead Consumer Notice

    Lead and Copper Rule

    December 30, 2021 – January 21, 2022

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2018 – July 9, 2018

    Resolved
  • Monitoring, Regular

    Methoxychlor

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Toxaphene

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Aldicarb sulfoxide

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Aldicarb sulfone

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Carbofuran

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Aldicarb

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Atrazine

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    LASSO

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Heptachlor

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Heptachlor epoxide

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    2,4-D

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    2,4,5-TP

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    ETHYLENE DIBROMIDE

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Chlordane

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Endrin

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Dalapon

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Diquat

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Glyphosate

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) adipate

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    OXAMYL

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Simazine

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) phthalate

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Picloram

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Dinoseb

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Hexachlorocyclopentadiene

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    HEXACHLOROBENZENE

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    Benzo(a)pyrene

    January 1, 2016 – December 31, 2018

    Resolved
  • Monitoring, Regular

    BHC-GAMMA

    January 1, 2016 – December 31, 2018

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Common questions

Is AQUARION-STAMFORD required to publish a Consumer Confidence Report?

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

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

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

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

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