IL1234950 · Illinois

WENONA

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

Violation records shown: 9
EPA health-based flag: 1
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 7

Counties listed by EPA · Marshall 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 7 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 90 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 7151216 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2026 · period end April 30, 2026 · first reported August 27, 2026 · EPA return-to-compliance field April 30, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8001535	May 20, 2026	Informal	State Violation/Reminder Notice
8001536	May 20, 2026	Informal	State Public Notification requested
8001537	May 24, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 7151215 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start April 1, 2026 · period end April 30, 2026 · first reported August 27, 2026 · EPA return-to-compliance field April 30, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8001533	May 20, 2026	Informal	State Violation/Reminder Notice
8001534	May 20, 2026	Informal	State Public Notification requested
8001538	May 24, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Unaddressed by formal action

Notification, Known or Potential LSLViolation 7151213 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start July 2, 2025 · first reported November 21, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8001528	July 3, 2025	Informal	State Violation/Reminder Notice
8001529	July 3, 2025	Informal	State Public Notification requested
8001539	June 5, 2026	Informal	State Public Notification received

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 7151210 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start January 3, 2025 · period end January 7, 2025 · first reported May 14, 2025 · EPA return-to-compliance field January 7, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8001518	January 7, 2025	Resolving	State Compliance achieved
8001519	February 18, 2025	Informal	State Violation/Reminder Notice

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 7151214 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported November 21, 2025 · EPA return-to-compliance field December 31, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8001530	October 14, 2025	Informal	State Violation/Reminder Notice
8001531	October 14, 2025	Informal	State Public Notification requested
8001540	June 5, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

LSL ReportingViolation 7151212 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end April 7, 2025 · first reported August 18, 2025 · EPA return-to-compliance field April 7, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8001532	April 7, 2025	Resolving	State Compliance achieved
8001526	July 2, 2025	Informal	State Violation/Reminder Notice
8001527	July 2, 2025	Informal	State Public Notification requested
8001541	June 5, 2026	Informal	State Public Notification received

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 7151209 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024

6 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8001513	December 3, 2024	Informal	State Violation/Reminder Notice
8001514	December 3, 2024	Informal	State Public Notification requested
8001515	December 20, 2024	Informal	State Formal Notice of Violation issued
8001517	January 23, 2025	Informal	State Public Notification received
8001520	March 31, 2025	Formal	State Administrative/Compliance Order without penalty issued
8001521	April 9, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 7151208 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2024 · period end September 30, 2024 · first reported November 21, 2024 · EPA return-to-compliance field September 30, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8001510	October 11, 2024	Informal	State Violation/Reminder Notice
8001511	October 11, 2024	Informal	State Public Notification requested
8001516	November 20, 2024	Resolving	State Compliance achieved
8001523	May 7, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 7151207 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start April 1, 2024 · period end June 30, 2024 · first reported August 29, 2024 · EPA return-to-compliance field June 30, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8001508	July 11, 2024	Informal	State Violation/Reminder Notice
8001509	July 11, 2024	Informal	State Public Notification requested
8001516	November 20, 2024	Resolving	State Compliance achieved
8001522	May 7, 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