SHELTON, CT · New London County
AQUARION-MYSTIC Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)
- CT1370011
- System type
- Community Water System
- Population served
- 10,788
- Service connections
- 5,077
- Ownership
- privately owned
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Consumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
August 10, 2018 – July 6, 2018
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2018 – July 11, 2018
ResolvedMonitoring, Regular
—Nitrate
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—Styrene
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—Toluene
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—Benzene
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—Nitrite
January 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—Selenium
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Chromium
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—CYANIDE
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Fluoride
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Mercury
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Nickel
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Arsenic
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Barium
January 1, 2016 – December 31, 2018
ResolvedMonitoring, Regular
—Cadmium
January 1, 2016 – December 31, 2018
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2006 – July 13, 2006
ResolvedMonitoring, Regular
—Nitrite
January 1, 1993 – March 31, 1993
ResolvedMonitoring, Regular
—Selenium
December 1, 1986 – November 30, 1987
ResolvedMonitoring, Regular
—Mercury
December 1, 1986 – November 30, 1987
ResolvedMonitoring, Regular
—Cadmium
December 1, 1986 – November 30, 1987
ResolvedMonitoring, Regular
—Barium
December 1, 1986 – November 30, 1987
ResolvedMonitoring, Regular
—Arsenic
December 1, 1986 – November 30, 1987
ResolvedMonitoring, Regular
—Fluoride
December 1, 1986 – November 30, 1987
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| August 10, 2018 – July 6, 2018 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Resolved |
| July 1, 2018 – July 11, 2018 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2018 – December 31, 2018 | Monitoring, Regular | Nitrite | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Chromium | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | CYANIDE | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Nickel | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Antimony, Total | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Thallium, Total | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2016 – December 31, 2018 | Monitoring, Regular | Cadmium | — | Resolved |
| July 1, 2006 – July 13, 2006 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 1993 – March 31, 1993 | Monitoring, Regular | Nitrite | — | Resolved |
| December 1, 1986 – November 30, 1987 | Monitoring, Regular | Selenium | — | Resolved |
| December 1, 1986 – November 30, 1987 | Monitoring, Regular | Mercury | — | Resolved |
| December 1, 1986 – November 30, 1987 | Monitoring, Regular | Cadmium | — | Resolved |
| December 1, 1986 – November 30, 1987 | Monitoring, Regular | Barium | — | Resolved |
| December 1, 1986 – November 30, 1987 | Monitoring, Regular | Arsenic | — | Resolved |
| December 1, 1986 – November 30, 1987 | Monitoring, Regular | Fluoride | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- December 31, 2019State Compliance achieved23 linked violations
- May 29, 2019State Violation/Reminder Notice37 linked violations
- May 29, 2019State Compliance achieved48 linked violations
- January 11, 2019State Violation/Reminder Notice2 linked violations
- December 31, 1988State Compliance achieved9 linked violations
Contact
ULRICH, ROBERT J.
203-926-4320
SHELTON, CT 06484