MI0003968 · Michigan
LYON TOWNSHIP
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 6
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 5
Counties listed by EPA · Oakland County, Michigan
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 196.5 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 134 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2025 · period end October 16, 2025 · first reported February 27, 2026 · EPA return-to-compliance field October 16, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 432 October 16, 2025 Resolving State Compliance achieved 431 January 13, 2026 Informal State Violation/Reminder Notice Monitoring or reporting · Unaddressed by formal action
Notification, Known or Potential LSLViolation 133 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start July 2, 2025 · first reported February 27, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 427 December 12, 2025 Informal State Violation/Reminder Notice 428 December 12, 2025 Informal State Public Notification requested 430 June 23, 2026 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 132 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 27, 2026 · EPA return-to-compliance field December 31, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 423 December 12, 2025 Informal State Violation/Reminder Notice 424 December 12, 2025 Informal State Public Notification requested 426 June 22, 2026 Informal State Public Notification received Other or unclassified · Resolved
Failure to Consult with StateViolation 106 · Groundwater Rule · Ground Water RuleNoncompliance period start November 9, 2020 · period end December 8, 2020 · first reported March 9, 2021 · EPA return-to-compliance field December 8, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 408 December 8, 2020 Resolving State Compliance achieved 407 December 22, 2020 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 108 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start September 1, 2020 · period end August 31, 2021 · first reported December 1, 2021 · EPA return-to-compliance field August 31, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 409 October 29, 2021 Informal State Violation/Reminder Notice 411 November 2, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 107 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start September 1, 2020 · period end August 31, 2021 · first reported December 1, 2021 · EPA return-to-compliance field August 31, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 409 October 29, 2021 Informal State Violation/Reminder Notice 411 November 2, 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