IL0975736 · Illinois
ELM OAK MUTUAL WATER SYSTEM
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 3
- EPA health-based flag
- 0
- 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 3 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 534 days. The interval uses the reporting periods and dates on file.
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 5397960 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start February 11, 2024 · period end July 29, 2025 · first reported May 21, 2024 · EPA return-to-compliance field July 29, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9048626 March 15, 2024 Informal State Violation/Reminder Notice 9048629 July 29, 2025 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 5397959 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start February 11, 2024 · period end July 29, 2025 · first reported May 21, 2024 · EPA return-to-compliance field July 29, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9048625 March 15, 2024 Informal State Violation/Reminder Notice 9048627 July 29, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5397957 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9048620 February 10, 2023 Informal State Violation/Reminder Notice 9048621 February 10, 2023 Informal State Public Notification requested 9048624 July 10, 2023 Resolving State Compliance achieved 9048628 July 31, 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