SHELTON, CT · Fairfield County
AQUARION-DARIEN Water System
Consumer Confidence Report status
AQUARION-DARIEN 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-DARIEN.
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)
- CT0350011
- System type
- Community Water System
- Population served
- 18,737
- Service connections
- 6,844
- Ownership
- privately owned
- Water source
- surface water (rivers, lakes, or reservoirs)
AQUARION-DARIEN is one of 35 community water systems in Connecticut in the 10,001 to 100,000 people size category, serving 18,737 people from surface water.
As of August 1, 2026, its federal record holds 2 entries between 2006 and 2018, all of which EPA lists as closed. Nothing has been added since 2018.
None of the 2 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Consumer Confidence Rule.
Violation history
Consumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2018 – July 9, 2018
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2006 – July 13, 2006
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2018 – July 9, 2018 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2006 – July 13, 2006 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is AQUARION-DARIEN required to publish a Consumer Confidence Report?
- Yes. AQUARION-DARIEN 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-DARIEN’s next Consumer Confidence Report due?
- AQUARION-DARIEN’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does AQUARION-DARIEN have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for AQUARION-DARIEN.
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