IL1830650 · Illinois
POTOMAC
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 11
- EPA health-based flag
- 1
- Health-based records unresolved in this snapshot
- 1
- Monitoring and reporting records
- 5
Counties listed by EPA · Vermilion 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 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.
EPA health-based flag · Unaddressed by formal action
LSL InventoryViolation 7080423 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · first reported August 18, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7243831 July 22, 2025 Informal State Violation/Reminder Notice 7243832 July 22, 2025 Informal State Public Notification requested 7243844 June 4, 2026 Informal State Public Notification received Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 7080426 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2025 · period end December 30, 2025 · first reported February 26, 2026 · EPA return-to-compliance field December 30, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7243838 October 21, 2025 Informal State Violation/Reminder Notice 7243839 October 21, 2025 Informal State Public Notification requested 7243841 December 30, 2025 Resolving State Compliance achieved 7243842 June 4, 2026 Informal State Public Notification received Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 7080425 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start August 22, 2025 · period end June 2, 2026 · first reported November 21, 2025 · EPA return-to-compliance field June 2, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7243837 September 24, 2025 Informal State Violation/Reminder Notice 7243843 June 2, 2026 Resolving State Compliance achieved Monitoring or reporting · Unaddressed by formal action
Notification, Known or Potential LSLViolation 7080424 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance 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 7243833 July 3, 2025 Informal State Violation/Reminder Notice 7243834 July 3, 2025 Informal State Public Notification requested 7243840 September 26, 2025 Informal State Public Notification received Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 7080420 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2022 · period end June 22, 2023 · first reported November 10, 2022 · EPA return-to-compliance field June 22, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7243828 July 26, 2022 Informal State Violation/Reminder Notice 7243830 June 22, 2023 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 7080419 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 14, 2022 · period end June 13, 2022 · first reported July 28, 2022 · EPA return-to-compliance field June 13, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7243821 May 13, 2022 Informal State Violation/Reminder Notice 7243823 May 13, 2022 Informal State Violation/Reminder Notice 7243826 June 13, 2022 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 7080418 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 14, 2022 · period end June 13, 2022 · first reported July 28, 2022 · EPA return-to-compliance field June 13, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7243820 May 13, 2022 Informal State Violation/Reminder Notice 7243822 May 13, 2022 Informal State Violation/Reminder Notice 7243824 June 13, 2022 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 7080417 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 22, 2021 · period end July 16, 2025 · first reported February 9, 2022 · EPA return-to-compliance field July 16, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7243816 November 3, 2021 Informal State Violation/Reminder Notice 7243835 July 16, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 7080416 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2021 · 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 7243814 September 27, 2021 Informal State Violation/Reminder Notice 7243815 September 27, 2021 Informal State Public Notification requested 7243817 October 6, 2021 Resolving State Compliance achieved 7243819 November 30, 2021 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 7080412 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start March 1, 2021 · period end March 31, 2021 · first reported June 1, 2021 · EPA return-to-compliance field March 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7243809 April 13, 2021 Informal State Violation/Reminder Notice 7243810 April 13, 2021 Informal State Public Notification requested 7243813 May 6, 2021 Resolving State Compliance achieved 7243827 June 13, 2022 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 7080413 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2021 · period end March 31, 2021 · first reported June 1, 2021 · EPA return-to-compliance field March 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7243811 April 13, 2021 Informal State Violation/Reminder Notice 7243812 April 13, 2021 Informal State Public Notification requested 7243813 May 6, 2021 Resolving State Compliance achieved 7243825 June 13, 2022 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