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IL0313000 · Illinois

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

Violation records shown: 10
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 9

Counties listed by EPA · Cook County, Illinois

Open the EPA system record

Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.

Violations and what followed

Among 9 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.

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 3956323 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start July 12, 2025 · period end June 26, 2025 · first reported November 21, 2025 · EPA return-to-compliance field June 26, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
6768041	June 26, 2025	Resolving	State Compliance achieved
6768042	June 26, 2025	Resolving	State Compliance achieved
6768040	August 26, 2025	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 3956321 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2025 · period end June 30, 2025 · first reported August 18, 2025 · EPA return-to-compliance field June 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
6768038	July 11, 2025	Informal	State Violation/Reminder Notice
6768039	July 11, 2025	Informal	State Public Notification requested
6768044	September 29, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 3956320 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2025 · period end June 30, 2025 · first reported August 18, 2025 · EPA return-to-compliance field June 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
6768038	July 11, 2025	Informal	State Violation/Reminder Notice
6768039	July 11, 2025	Informal	State Public Notification requested
6768044	September 29, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 3956317 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts 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
6768031	July 11, 2024	Informal	State Violation/Reminder Notice
6768032	July 11, 2024	Informal	State Public Notification requested
6768033	October 9, 2024	Resolving	State Compliance achieved
6768043	July 3, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 3956316 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts 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
6768031	July 11, 2024	Informal	State Violation/Reminder Notice
6768032	July 11, 2024	Informal	State Public Notification requested
6768033	October 9, 2024	Resolving	State Compliance achieved
6768043	July 3, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Lead Consumer NoticeViolation 3956315 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start December 30, 2022 · period end February 9, 2023 · first reported February 28, 2023 · EPA return-to-compliance field February 9, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
6768027	January 24, 2023	Informal	State Violation/Reminder Notice
6768029	February 9, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 3956314 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2021 · period end March 31, 2022 · first reported May 11, 2022 · EPA return-to-compliance field March 31, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
6768023	April 15, 2022	Informal	State Violation/Reminder Notice
6768024	April 15, 2022	Informal	State Public Notification requested
6768025	July 5, 2022	Informal	State Public Notification received
6768030	October 3, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 3956313 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2021 · period end March 31, 2022 · first reported May 11, 2022 · EPA return-to-compliance field March 31, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
6768023	April 15, 2022	Informal	State Violation/Reminder Notice
6768024	April 15, 2022	Informal	State Public Notification requested
6768025	July 5, 2022	Informal	State Public Notification received
6768030	October 3, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 3956312 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2020 · period end September 30, 2021 · first reported December 1, 2021 · EPA return-to-compliance field September 30, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
6768021	October 25, 2021	Informal	State Violation/Reminder Notice
6768022	October 25, 2021	Informal	State Public Notification requested
6768026	October 24, 2022	Informal	State Public Notification received
6768030	October 3, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 3956311 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2020 · period end September 30, 2021 · first reported December 1, 2021 · EPA return-to-compliance field September 30, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
6768021	October 25, 2021	Informal	State Violation/Reminder Notice
6768022	October 25, 2021	Informal	State Public Notification requested
6768026	October 24, 2022	Informal	State Public Notification received
6768030	October 3, 2023	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