IL0312490 · Illinois

PHOENIX

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

Violation records shown: 22
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 17

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 20 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 91 days. The interval uses the reporting periods and dates on file.

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 5290773 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start April 14, 2026 · period end June 25, 2026 · first reported August 27, 2026 · EPA return-to-compliance field June 25, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
7859495 June 25, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 5290772 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start April 14, 2026 · period end June 25, 2026 · first reported August 27, 2026 · EPA return-to-compliance field June 25, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
7859498 June 25, 2026 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859495	June 25, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859498	June 25, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5290771 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2025 · period end December 31, 2025 · first reported February 26, 2026 · 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
7859490	January 13, 2026	Informal	State Violation/Reminder Notice
7859491	January 13, 2026	Informal	State Public Notification requested
7859492	April 3, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5290770 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2025 · period end December 31, 2025 · first reported February 26, 2026 · 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
7859488	January 13, 2026	Informal	State Violation/Reminder Notice
7859489	January 13, 2026	Informal	State Public Notification requested
7859492	April 3, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Unaddressed by formal action

Notification, Known or Potential LSLViolation 5290769 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

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

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859485	July 3, 2025	Informal	State Violation/Reminder Notice
7859486	July 3, 2025	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5290767 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2025 · period end March 31, 2025 · first reported May 14, 2025 · EPA return-to-compliance field March 31, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859481	April 13, 2025	Informal	State Violation/Reminder Notice
7859482	April 13, 2025	Informal	State Public Notification requested
7859487	July 8, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5290766 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2025 · period end March 31, 2025 · first reported May 14, 2025 · EPA return-to-compliance field March 31, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859479	April 13, 2025	Informal	State Violation/Reminder Notice
7859480	April 13, 2025	Informal	State Public Notification requested
7859487	July 8, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5290765 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2023 · period end September 30, 2023 · first reported November 28, 2023 · EPA return-to-compliance field September 30, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859473	October 11, 2023	Informal	State Violation/Reminder Notice
7859474	October 11, 2023	Informal	State Public Notification requested
7859475	January 8, 2024	Resolving	State Compliance achieved
7859478	July 1, 2024	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5290764 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2023 · period end September 30, 2023 · first reported November 28, 2023 · EPA return-to-compliance field September 30, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859471	October 11, 2023	Informal	State Violation/Reminder Notice
7859472	October 11, 2023	Informal	State Public Notification requested
7859475	January 8, 2024	Resolving	State Compliance achieved
7859477	July 1, 2024	Informal	State Public Notification received

Monitoring or reporting · Resolved

Lead Consumer NoticeViolation 5290763 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start December 30, 2022 · period end January 30, 2023 · first reported February 28, 2023 · EPA return-to-compliance field January 30, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859468	January 24, 2023	Informal	State Violation/Reminder Notice
7859470	January 30, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 5290761 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start July 15, 2022 · period end September 8, 2022 · first reported November 10, 2022 · EPA return-to-compliance field September 8, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859456	August 12, 2022	Informal	State Violation/Reminder Notice
7859459	September 8, 2022	Resolving	State Compliance achieved

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 5290760 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start July 15, 2022 · period end September 8, 2022 · first reported November 10, 2022 · EPA return-to-compliance field September 8, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859455	August 12, 2022	Informal	State Violation/Reminder Notice
7859457	September 8, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5290759 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2021 · period end December 31, 2021 · first reported February 9, 2022 · EPA return-to-compliance field December 31, 2021

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859450	January 12, 2022	Informal	State Violation/Reminder Notice
7859451	January 12, 2022	Informal	State Public Notification requested
7859452	March 17, 2022	Informal	State Formal Notice of Violation issued
7859454	April 8, 2022	Resolving	State Compliance achieved
7859463	September 8, 2022	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5290758 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2021 · period end December 31, 2021 · first reported February 9, 2022 · EPA return-to-compliance field December 31, 2021

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859448	January 12, 2022	Informal	State Violation/Reminder Notice
7859449	January 12, 2022	Informal	State Public Notification requested
7859452	March 17, 2022	Informal	State Formal Notice of Violation issued
7859454	April 8, 2022	Resolving	State Compliance achieved
7859464	September 8, 2022	Informal	State Public Notification received

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 5290755 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start October 1, 2021 · period end February 27, 2024 · first reported February 9, 2022 · EPA return-to-compliance field February 27, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859442	October 14, 2021	Informal	State Violation/Reminder Notice
7859443	October 14, 2021	Informal	State Public Notification requested
7859465	September 8, 2022	Informal	State Public Notification received
7859476	February 27, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5290757 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 1, 2021 · EPA return-to-compliance field September 30, 2021

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859446	October 25, 2021	Informal	State Violation/Reminder Notice
7859447	October 25, 2021	Informal	State Public Notification requested
7859452	March 17, 2022	Informal	State Formal Notice of Violation issued
7859454	April 8, 2022	Resolving	State Compliance achieved
7859461	September 8, 2022	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5290756 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 1, 2021 · EPA return-to-compliance field September 30, 2021

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859444	October 25, 2021	Informal	State Violation/Reminder Notice
7859445	October 25, 2021	Informal	State Public Notification requested
7859452	March 17, 2022	Informal	State Formal Notice of Violation issued
7859454	April 8, 2022	Resolving	State Compliance achieved
7859462	September 8, 2022	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5290752 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2021 · period end June 30, 2021 · first reported September 1, 2021 · EPA return-to-compliance field June 30, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859435	July 14, 2021	Informal	State Violation/Reminder Notice
7859436	July 14, 2021	Informal	State Public Notification requested
7859440	August 9, 2021	Resolving	State Compliance achieved
7859458	September 8, 2022	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5290751 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2021 · period end June 30, 2021 · first reported September 1, 2021 · EPA return-to-compliance field June 30, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859433	July 14, 2021	Informal	State Violation/Reminder Notice
7859434	July 14, 2021	Informal	State Public Notification requested
7859440	August 9, 2021	Resolving	State Compliance achieved
7859460	September 8, 2022	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5290750 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2020 · period end December 31, 2020 · first reported March 11, 2021 · EPA return-to-compliance field December 31, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859428	January 11, 2021	Informal	State Violation/Reminder Notice
7859429	January 11, 2021	Informal	State Public Notification requested
7859432	April 13, 2021	Resolving	State Compliance achieved
7859438	July 8, 2021	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5290749 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2020 · period end December 31, 2020 · first reported March 11, 2021 · EPA return-to-compliance field December 31, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859426	January 11, 2021	Informal	State Violation/Reminder Notice
7859427	January 11, 2021	Informal	State Public Notification requested
7859432	April 13, 2021	Resolving	State Compliance achieved
7859439	July 8, 2021	Informal	State Public Notification received

Other or unclassified · Unaddressed by formal action

Public Notification Violation for NPDWR ViolationViolation 5290737 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start October 12, 2013 · first reported March 4, 2014

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7859387	November 14, 2013	Informal	State Violation/Reminder Notice
7859391	December 11, 2013	Informal	State Formal Notice of Violation issued

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