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
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2018 – July 9, 2018
ResolvedMonitoring, Regular
—Methoxychlor
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Toxaphene
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Aldicarb sulfoxide
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Aldicarb sulfone
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Aldicarb
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Atrazine
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—LASSO
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Heptachlor epoxide
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—2,4-D
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Total Polychlorinated Biphenyls (PCB)
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Chlordane
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Endrin
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Dalapon
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Diquat
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Glyphosate
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—OXAMYL
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Simazine
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Picloram
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 2016 – December 31, 2018
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| December 30, 2021 – January 21, 2022 | Lead Consumer Notice | Lead and Copper Rule | — | Resolved |
| July 1, 2018 – July 9, 2018 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Methoxychlor | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Toxaphene | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Aldicarb sulfoxide | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Aldicarb sulfone | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Aldicarb | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Total Polychlorinated Biphenyls (PCB) | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Chlordane | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Endrin | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Dalapon | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Diquat | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Glyphosate | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | OXAMYL | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- June 12, 2019State Violation/Reminder Notice1000 linked violations
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