CT0280011 · Connecticut
COLCHESTER SEWER & WATER COMMISSION
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 14
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 7
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 12 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 45 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Archived
Failure to Conduct Assessment MonitoringViolation 75401 · E. COLI · Ground Water RuleNoncompliance period start March 1, 2026 · period end March 31, 2026 · first reported June 29, 2026 · EPA return-to-compliance field March 31, 2026
No linked action row appears in the records shown.Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 75399 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start August 10, 2025 · period end August 29, 2025 · first reported December 15, 2025 · EPA return-to-compliance field August 29, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 74788 August 29, 2025 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 75400 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2025 · period end July 25, 2025 · first reported December 15, 2025 · EPA return-to-compliance field July 25, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 74787 July 25, 2025 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 75398 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start June 15, 2025 · period end August 29, 2025 · first reported September 2, 2025 · EPA return-to-compliance field August 29, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 74792 August 29, 2025 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 75397 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start June 15, 2025 · period end August 29, 2025 · first reported September 2, 2025 · EPA return-to-compliance field August 29, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 74791 August 29, 2025 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 75394 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start May 25, 2024 · period end August 29, 2025 · first reported September 27, 2024 · EPA return-to-compliance field August 29, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 74775 July 16, 2024 Informal State Violation/Reminder Notice 74790 August 29, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Failure to Conduct Assessment MonitoringViolation 75392 · E. COLI · Ground Water RuleNoncompliance period start March 1, 2024 · period end March 31, 2024 · first reported June 28, 2024 · EPA return-to-compliance field March 31, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 74773 April 30, 2024 Resolving State Compliance achieved 74769 June 4, 2024 Informal State Violation/Reminder Notice 74770 June 4, 2024 Informal State Public Notification requested 74780 August 29, 2025 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 75396 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported November 18, 2024 · EPA return-to-compliance field December 31, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 74776 October 16, 2024 Informal State Violation/Reminder Notice 74777 October 16, 2024 Informal State Public Notification requested 74783 August 29, 2025 Informal State Public Notification received 74789 December 31, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 75395 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported November 18, 2024 · EPA return-to-compliance field December 31, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 74776 October 16, 2024 Informal State Violation/Reminder Notice 74777 October 16, 2024 Informal State Public Notification requested 74783 August 29, 2025 Informal State Public Notification received 74789 December 31, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Failure to Conduct Assessment MonitoringViolation 75393 · E. COLI · Ground Water RuleNoncompliance period start January 1, 2024 · period end January 31, 2024 · first reported June 28, 2024 · EPA return-to-compliance field January 31, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 74774 February 9, 2024 Resolving State Compliance achieved 74771 June 4, 2024 Informal State Violation/Reminder Notice 74772 June 4, 2024 Informal State Public Notification requested 74782 August 29, 2025 Informal State Public Notification received Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 75391 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2023 · period end July 17, 2023 · first reported December 20, 2023 · EPA return-to-compliance field July 17, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 74768 July 17, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 75390 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2022 · period end November 30, 2022 · first reported February 21, 2023 · EPA return-to-compliance field November 30, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 74767 November 30, 2022 Resolving State Compliance achieved 74765 May 25, 2023 Informal State Violation/Reminder Notice 74766 May 25, 2023 Informal State Public Notification requested 74785 August 29, 2025 Informal State Public Notification received Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 75389 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2021 · period end July 2, 2021 · first reported June 30, 2022 · EPA return-to-compliance field July 2, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 74764 July 2, 2021 Resolving State Compliance achieved 74763 June 15, 2022 Informal State Violation/Reminder Notice Monitoring or reporting · Archived
Monitoring, RegularViolation 75387 · Asbestos · Inorganic ChemicalsNoncompliance period start January 1, 2012 · period end December 31, 2020 · first reported February 12, 2021 · EPA return-to-compliance field December 31, 2020
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 74752 March 1, 2021 Informal State Violation/Reminder Notice 74753 March 1, 2021 Informal State Public Notification requested 74761 December 3, 2021 Informal State Public Notification received
EPA data and scope
How to read the records
The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.
- We matched active community water systems by public water system ID between EPA’s system search and SDWIS inventory. We show violations with a recorded noncompliance, initial reporting or return-to-compliance date from 2021 onward, plus earlier records listed as Addressed or Unaddressed.
- EPA’s health-based flag identifies violations of contaminant or disinfectant limits or treatment requirements. Monitoring and reporting violations describe required tests or reports. Neither category measures household exposure.
- Addressed means EPA records formal enforcement on a violation that remains unresolved in the snapshot. Unaddressed means no formal action is recorded for an unresolved violation. Resolved can mean compliance was restored, the rule ceased to apply, or further action was unnecessary. Archived is a separate status.
- We count a violation once per water system and group its distinct linked actions. Conflicting records are set aside. Places are EPA-listed search locations and can include mailing locations. Use the provider name and system ID to identify your service.
EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility