IL0310630 · Illinois
DES PLAINES
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 4
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 3
Counties listed by EPA · Cook County, Illinois
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 1 resolved record with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 0 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Unaddressed by formal action
Follow-up Or Routine LCR Tap M/RViolation 7011622 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2026 · first reported May 27, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 735815 January 27, 2026 Informal State Violation/Reminder Notice 735816 January 27, 2026 Informal State Public Notification requested Monitoring or reporting · Resolved
Notification, Known or Potential LSLViolation 7011619 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start July 2, 2025 · period end July 2, 2025 · first reported November 21, 2025 · EPA return-to-compliance field July 2, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 735814 July 2, 2025 Resolving State Compliance achieved 735810 July 3, 2025 Informal State Violation/Reminder Notice 735811 July 3, 2025 Informal State Public Notification requested Other or unclassified · Unaddressed by formal action
Consumer Confidence Report Inadequate ReportingViolation 7011621 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2025 · first reported November 21, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 735812 July 29, 2025 Informal State Violation/Reminder Notice Monitoring or reporting · Unaddressed by formal action
Follow-up Or Routine LCR Tap M/RViolation 7011617 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2024 · first reported February 27, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 735808 October 12, 2024 Informal State Violation/Reminder Notice 735809 October 12, 2024 Informal State Public Notification requested 735813 October 11, 2025 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