IL1171200 · Illinois
WILSONVILLE
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 6
- EPA health-based flag
- 1
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 4
Counties listed by EPA · Macoupin 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 5 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.
EPA health-based flag · Resolved
Treatment Technique (SWTR and GWR)Violation 5345816 · Long Term 2 Enhanced Surface Water Treatment Rule · Long Term 2 Enhanced Surface Water Treatment RuleNoncompliance period start January 1, 2026 · period end January 31, 2026 · first reported May 27, 2026 · EPA return-to-compliance field January 31, 2026
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7206427 February 25, 2026 Informal State Violation/Reminder Notice 7206428 February 25, 2026 Informal State Public Notification requested 7206431 February 25, 2026 Informal State Intentional no-action 7206430 March 9, 2026 Resolving State Compliance achieved 7206429 March 27, 2026 Informal State Public Notification received Other or unclassified · Unaddressed by formal action
Consumer Confidence Report Inadequate ReportingViolation 5345815 · 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 7206424 September 6, 2025 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5345814 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2024 · period end December 31, 2024 · first reported February 27, 2025 · EPA return-to-compliance field December 31, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7206420 January 14, 2025 Informal State Violation/Reminder Notice 7206421 January 14, 2025 Informal State Public Notification requested 7206422 February 7, 2025 Resolving State Compliance achieved 7206423 July 17, 2025 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5345813 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2024 · period end September 30, 2024 · first reported November 21, 2024 · EPA return-to-compliance field September 30, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7206418 October 15, 2024 Informal State Violation/Reminder Notice 7206419 October 15, 2024 Informal State Public Notification requested 7206422 February 7, 2025 Resolving State Compliance achieved 7206426 October 15, 2025 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5345812 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2024 · period end September 30, 2024 · first reported November 21, 2024 · EPA return-to-compliance field September 30, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7206416 October 15, 2024 Informal State Violation/Reminder Notice 7206417 October 15, 2024 Informal State Public Notification requested 7206422 February 7, 2025 Resolving State Compliance achieved 7206425 October 15, 2025 Informal State Public Notification received Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 5345811 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start December 30, 2020 · period end March 10, 2021 · first reported March 11, 2021 · EPA return-to-compliance field March 10, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 7206413 January 6, 2021 Informal State Violation/Reminder Notice 7206414 March 10, 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