CLINTON, CT · Windham County
CTWC - THOMPSON SYSTEM Water System
Consumer Confidence Report status
CTWC - THOMPSON SYSTEM 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 CTWC - THOMPSON SYSTEM.
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)
- CT1410011
- System type
- Community Water System
- Population served
- 1,070
- Service connections
- 484
- Ownership
- privately owned
- Water source
- groundwater (wells)
CTWC - THOMPSON SYSTEM is one of 84 community water systems in Connecticut in the 501 to 3,300 people size category, serving 1,070 people from groundwater.
As of August 1, 2026, its federal record holds 33 entries between 2001 and 2015, all of which EPA lists as closed. Nothing has been added since 2015.
All 33 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.
Violation history
Monitoring, Regular
—Chlordane
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Endrin
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—BHC-GAMMA
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Methoxychlor
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Toxaphene
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Dalapon
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Diquat
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Glyphosate
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—OXAMYL
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Simazine
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Picloram
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Dinoseb
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Aldicarb sulfoxide
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Aldicarb sulfone
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Carbofuran
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Aldicarb
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Atrazine
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—LASSO
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Heptachlor
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Heptachlor epoxide
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—2,4-D
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—2,4,5-TP
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Benzo(a)pyrene
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Pentachlorophenol
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Total Polychlorinated Biphenyls (PCB)
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Total Polychlorinated Biphenyls (PCB)
January 1, 2001 – December 31, 2003
ResolvedMonitoring, Regular
—Total Polychlorinated Biphenyls (PCB)
January 1, 2001 – December 31, 2003
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Chlordane | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Endrin | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Methoxychlor | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Toxaphene | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Dalapon | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Diquat | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Glyphosate | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | OXAMYL | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Simazine | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Picloram | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Dinoseb | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Aldicarb sulfoxide | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Aldicarb sulfone | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Carbofuran | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Aldicarb | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Atrazine | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | LASSO | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Heptachlor | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | 2,4-D | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Total Polychlorinated Biphenyls (PCB) | — | Resolved |
| January 1, 2001 – December 31, 2003 | Monitoring, Regular | Total Polychlorinated Biphenyls (PCB) | — | Resolved |
| January 1, 2001 – December 31, 2003 | Monitoring, Regular | Total Polychlorinated Biphenyls (PCB) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- September 22, 2016State Public Notification received1 linked violation
- September 13, 2016State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- October 24, 2015State Compliance achieved31 linked violations
- September 24, 2015State Violation/Reminder Notice31 linked violations
- March 14, 1995State Public Notification requested9 linked violations
- January 31, 1984State Compliance achievedgeneral compliance action — not tied to a specific violation on record
Common questions
Is CTWC - THOMPSON SYSTEM required to publish a Consumer Confidence Report?
- Yes. CTWC - THOMPSON SYSTEM 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 CTWC - THOMPSON SYSTEM’s next Consumer Confidence Report due?
- CTWC - THOMPSON SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CTWC - THOMPSON SYSTEM have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for CTWC - THOMPSON SYSTEM.
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
LOWRY, PAUL C.
860-944-9655
CLINTON, CT 06413