CT1100011 · Connecticut

AQUARION-PLAINVILLE REGIONAL

Federal fiscal 2026Q3 · EPA violation and follow-up records

Violation records shown: 8
EPA health-based flag: 1
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 4

Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.

Violations and what followed

Among 3 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 25 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Resolved

Treatment Technique (SWTR and GWR)Violation 8833641 · Groundwater Rule · Ground Water Rule

Noncompliance period start February 1, 2026 · period end February 26, 2026 · first reported June 29, 2026 · EPA return-to-compliance field February 26, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2729	February 26, 2026	Resolving	State Compliance achieved
2726	March 24, 2026	Informal	State Violation/Reminder Notice
2727	March 24, 2026	Informal	State Public Notification requested
2728	April 15, 2026	Informal	State Public Notification received

Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 8833640 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start August 10, 2021 · period end July 6, 2021 · first reported June 30, 2022 · EPA return-to-compliance field July 6, 2021

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
2724 July 6, 2021 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 8833639 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2021 · period end July 6, 2021 · first reported June 30, 2022 · EPA return-to-compliance field July 6, 2021

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
2723 July 6, 2021 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 8833634 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2020 · period end July 6, 2021 · first reported February 12, 2021 · EPA return-to-compliance field July 6, 2021

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
2725 July 6, 2021 Resolving State Compliance achieved
Monitoring or reporting · Archived
Monitoring, RegularViolation 8833638 · Arsenic · Arsenic Rule
Noncompliance period start January 1, 2019 · period end December 31, 2021 · first reported February 16, 2022 · EPA return-to-compliance field December 31, 2021
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 8833637 · Cadmium · Inorganic Chemicals
Noncompliance period start January 1, 2019 · period end December 31, 2021 · first reported February 16, 2022 · EPA return-to-compliance field December 31, 2021
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 8833636 · Antimony, Total · Inorganic Chemicals
Noncompliance period start January 1, 2019 · period end December 31, 2021 · first reported February 16, 2022 · EPA return-to-compliance field December 31, 2021
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 8833635 · Beryllium, Total · Inorganic Chemicals
Noncompliance period start January 1, 2019 · period end December 31, 2021 · first reported February 16, 2022 · EPA return-to-compliance field December 31, 2021
No linked action row appears in the records shown.

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2724	July 6, 2021	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2723	July 6, 2021	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2725	July 6, 2021	Resolving	State Compliance achieved

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