IL0971950 · Illinois
WINTHROP HARBOR
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
- 12
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 16 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 7138837 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2026 · period end March 31, 2026 · first reported May 27, 2026 · EPA return-to-compliance field March 31, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570461 April 17, 2026 Informal State Violation/Reminder Notice 8570462 April 17, 2026 Informal State Public Notification requested 8570463 April 29, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 7138836 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2026 · period end March 31, 2026 · first reported May 27, 2026 · EPA return-to-compliance field March 31, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570461 April 17, 2026 Informal State Violation/Reminder Notice 8570462 April 17, 2026 Informal State Public Notification requested 8570463 April 29, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 7138835 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2026 · period end June 5, 2026 · first reported May 27, 2026 · EPA return-to-compliance field June 5, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570459 January 27, 2026 Informal State Violation/Reminder Notice 8570460 January 27, 2026 Informal State Public Notification requested 8570464 June 5, 2026 Resolving State Compliance achieved Other or unclassified · Unaddressed by formal action
Consumer Confidence Report Inadequate ReportingViolation 7138834 · 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 8570458 August 21, 2025 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 7138832 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start January 12, 2025 · period end January 22, 2025 · first reported May 14, 2025 · EPA return-to-compliance field January 22, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570454 January 22, 2025 Resolving State Compliance achieved 8570455 February 18, 2025 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 7138831 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 11, 2024 · period end November 15, 2024 · first reported February 27, 2025 · EPA return-to-compliance field November 15, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570449 November 15, 2024 Resolving State Compliance achieved 8570448 November 19, 2024 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 7138830 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 11, 2024 · period end November 15, 2024 · first reported February 27, 2025 · EPA return-to-compliance field November 15, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570451 November 15, 2024 Resolving State Compliance achieved 8570447 November 19, 2024 Informal State Violation/Reminder Notice Other or unclassified · Unaddressed by formal action
Consumer Confidence Report Inadequate ReportingViolation 7138829 · 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 8570446 August 6, 2024 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 7138828 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2024 · period end July 17, 2024 · first reported November 21, 2024 · EPA return-to-compliance field July 17, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570445 July 17, 2024 Resolving State Compliance achieved 8570446 August 6, 2024 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 7138827 · 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
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570442 January 12, 2024 Informal State Violation/Reminder Notice 8570443 January 12, 2024 Informal State Public Notification requested 8570444 February 23, 2024 Resolving State Compliance achieved 8570453 February 5, 2025 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 7138826 · 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
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570442 January 12, 2024 Informal State Violation/Reminder Notice 8570443 January 12, 2024 Informal State Public Notification requested 8570444 February 23, 2024 Resolving State Compliance achieved 8570453 February 5, 2025 Informal State Public Notification received Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 7138824 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2023 · period end February 23, 2024 · first reported February 14, 2024 · EPA return-to-compliance field February 23, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570439 October 11, 2023 Informal State Violation/Reminder Notice 8570440 October 11, 2023 Informal State Public Notification requested 8570444 February 23, 2024 Resolving State Compliance achieved 8570450 December 9, 2024 Informal State Public Notification received Other or unclassified · Unaddressed by formal action
Consumer Confidence Report Inadequate ReportingViolation 7138825 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2023 · first reported February 14, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570441 December 19, 2023 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 7138823 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance 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 8570437 October 11, 2023 Informal State Violation/Reminder Notice 8570438 October 11, 2023 Informal State Public Notification requested 8570444 February 23, 2024 Resolving State Compliance achieved 8570452 December 9, 2024 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 7138822 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance 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 8570437 October 11, 2023 Informal State Violation/Reminder Notice 8570438 October 11, 2023 Informal State Public Notification requested 8570444 February 23, 2024 Resolving State Compliance achieved 8570452 December 9, 2024 Informal State Public Notification received Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 7138821 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2023 · period end August 30, 2023 · first reported November 28, 2023 · EPA return-to-compliance field August 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570435 July 24, 2023 Informal State Violation/Reminder Notice 8570436 August 30, 2023 Resolving State Compliance achieved Monitoring or reporting · Unaddressed by formal action
Lead Consumer NoticeViolation 7138820 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start December 30, 2022 · first reported February 28, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570433 January 24, 2023 Informal State Violation/Reminder Notice Monitoring or reporting · Unaddressed by formal action
Lead Consumer NoticeViolation 7138818 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start December 30, 2021 · first reported February 9, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570431 January 19, 2022 Informal State Violation/Reminder Notice Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 7138817 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 21, 2021 · first reported February 9, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570429 November 3, 2021 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 7138816 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2021 · period end August 16, 2021 · first reported December 1, 2021 · EPA return-to-compliance field August 16, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570428 August 16, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 7138815 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start December 30, 2020 · period end April 21, 2021 · first reported March 11, 2021 · EPA return-to-compliance field April 21, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570425 January 6, 2021 Informal State Violation/Reminder Notice 8570426 April 21, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 7138814 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2020 · period end September 29, 2021 · first reported March 11, 2021 · EPA return-to-compliance field September 29, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 8570423 October 20, 2020 Informal State Violation/Reminder Notice 8570424 October 20, 2020 Informal State Public Notification requested 8570430 September 29, 2021 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