IL0970040 · Illinois

GREEN OAKS

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

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

Counties listed by EPA · Lake 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 4 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 346.5 days. The interval uses the reporting periods and dates on file.

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 4718205 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start August 22, 2025 · period end January 12, 2026 · first reported November 21, 2025 · EPA return-to-compliance field January 12, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
6371613	September 24, 2025	Informal	State Violation/Reminder Notice
6371614	January 12, 2026	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Inadequate ReportingViolation 4718204 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2025 · period end September 16, 2025 · first reported November 21, 2025 · EPA return-to-compliance field September 16, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
6371611	August 27, 2025	Informal	State Violation/Reminder Notice
6371612	September 16, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

LSL ReportingViolation 4718202 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end April 20, 2026 · first reported August 18, 2025 · EPA return-to-compliance field April 20, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
6371607	July 2, 2025	Informal	State Violation/Reminder Notice
6371608	July 2, 2025	Informal	State Public Notification requested
6371616	January 26, 2026	Informal	State Public Notification received
6371617	April 20, 2026	Resolving	State Compliance achieved

EPA health-based flag · Resolved

LSL InventoryViolation 4718201 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end April 20, 2026 · first reported August 18, 2025 · EPA return-to-compliance field April 20, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
6371605	July 22, 2025	Informal	State Violation/Reminder Notice
6371606	July 22, 2025	Informal	State Public Notification requested
6371615	January 26, 2026	Informal	State Public Notification received
6371618	April 20, 2026	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