CLINTON, CT · Hartford County
CTWC - UNIONVILLE SYSTEM 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)
- CT0520011
- System type
- Community Water System
- Population served
- 14,693
- Service connections
- 6,319
- Ownership
- privately owned
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Treatment Technique (SWTR and GWR)
Health-basedGroundwater Rule
November 1, 2019 – November 30, 2019
ResolvedLead Consumer Notice
—Lead and Copper Rule
December 30, 2016 – May 9, 2022
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
August 1, 2002 – August 31, 2002
ResolvedMonitoring, Repeat Minor (TCR)
—Coliform (TCR)
April 1, 1991 – June 30, 1991
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| November 1, 2019 – November 30, 2019 | Treatment Technique (SWTR and GWR) | Groundwater Rule | Health-based | Resolved |
| December 30, 2016 – May 9, 2022 | Lead Consumer Notice | Lead and Copper Rule | — | Resolved |
| August 1, 2002 – August 31, 2002 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| April 1, 1991 – June 30, 1991 | Monitoring, Repeat Minor (TCR) | Coliform (TCR) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- May 9, 2022State Compliance achieved1 linked violation
- April 9, 2020State Public Notification received1 linked violation
- March 13, 2020State Violation/Reminder Notice1 linked violation
- March 13, 2020State Public Notification requested1 linked violation
- December 31, 2019State Compliance achieved1 linked violation
- April 28, 2017State Violation/Reminder Notice1 linked violation
- December 16, 2016State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- December 14, 2016State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- December 14, 2016State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- March 4, 2016State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- March 3, 2016State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- March 3, 2016State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
Contact
MCDERMOTT, GERALD
860-664-6125
CLINTON, CT 06413