IL0311590 · Illinois
LANSING
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 8
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 5
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 4 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.
Monitoring or reporting · Unaddressed by formal action
Follow-up Or Routine LCR Tap M/RViolation 1798321 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2026 · first reported May 27, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2055924 January 27, 2026 Informal State Violation/Reminder Notice 2055925 January 27, 2026 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 1798320 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2025 · period end September 30, 2025 · first reported November 21, 2025 · EPA return-to-compliance field September 30, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2055922 October 14, 2025 Informal State Violation/Reminder Notice 2055923 October 14, 2025 Informal State Public Notification requested 2055926 December 8, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 1798319 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2025 · period end September 30, 2025 · first reported November 21, 2025 · EPA return-to-compliance field September 30, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2055922 October 14, 2025 Informal State Violation/Reminder Notice 2055923 October 14, 2025 Informal State Public Notification requested 2055926 December 8, 2025 Resolving State Compliance achieved Other or unclassified · Unaddressed by formal action
Consumer Confidence Report Inadequate ReportingViolation 1798318 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2025 · first reported November 21, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2055921 September 2, 2025 Informal State Violation/Reminder Notice Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 1798315 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start January 12, 2025 · first reported May 14, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2055918 February 18, 2025 Informal State Violation/Reminder Notice Other or unclassified · Unaddressed by formal action
Consumer Confidence Report Inadequate ReportingViolation 1798314 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2024 · first reported November 21, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2055917 October 17, 2024 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 1798313 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 14, 2024 · EPA return-to-compliance field December 31, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2055914 January 12, 2024 Informal State Violation/Reminder Notice 2055915 January 12, 2024 Informal State Public Notification requested 2055916 March 6, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 1798312 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 14, 2024 · EPA return-to-compliance field December 31, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2055914 January 12, 2024 Informal State Violation/Reminder Notice 2055915 January 12, 2024 Informal State Public Notification requested 2055916 March 6, 2024 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