MI0006325 · Michigan

ST. LOUIS CENTER

Federal fiscal 2026Q3 · EPA violation and follow-up records

Violation records shown: 10
EPA health-based flag: 4
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 6

Counties listed by EPA · Washtenaw 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 10 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 89 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved

Monitoring, RegularViolation 3000442 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported May 29, 2026 · EPA return-to-compliance field March 31, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3002654	April 22, 2026	Informal	State Violation/Reminder Notice
3002655	April 22, 2026	Informal	State Public Notification requested
3002657	April 22, 2026	Informal	State Public Notification received
3002656	April 28, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 3000441 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported May 29, 2026 · EPA return-to-compliance field March 31, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3002658	April 22, 2026	Informal	State Violation/Reminder Notice
3002659	April 22, 2026	Informal	State Public Notification requested
3002661	April 22, 2026	Informal	State Public Notification received
3002660	April 28, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 3000440 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported May 29, 2026 · EPA return-to-compliance field March 31, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3002662	April 22, 2026	Informal	State Violation/Reminder Notice
3002663	April 22, 2026	Informal	State Public Notification requested
3002665	April 22, 2026	Informal	State Public Notification received
3002664	April 28, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Report Sample Result/Fail Monitor (RTCR)Violation 3000437 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start December 11, 2024 · period end December 15, 2024 · first reported March 3, 2025 · EPA return-to-compliance field December 15, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3002650	December 15, 2024	Resolving	State Compliance achieved
3002648	January 23, 2025	Informal	State Violation/Reminder Notice
3002649	January 23, 2025	Informal	State Public Notification requested
3002651	January 25, 2026	Informal	State Public Notification received

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 3000436 · Arsenic · Arsenic Rule

Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported June 5, 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
3002647	March 19, 2024	Resolving	State Compliance achieved
3002644	March 26, 2024	Informal	State Violation/Reminder Notice
3002645	March 26, 2024	Informal	State Public Notification requested
3002646	April 25, 2024	Informal	State Public Notification received

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 3000435 · Arsenic · Arsenic Rule

Noncompliance period start July 1, 2023 · period end September 30, 2023 · first reported December 5, 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
3002640	October 12, 2023	Informal	State Violation/Reminder Notice
3002641	October 12, 2023	Informal	State Public Notification requested
3002642	October 24, 2023	Informal	State Public Notification received
3002643	March 19, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 3000411 · Arsenic · Arsenic Rule

Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 31, 2023 · EPA return-to-compliance field June 30, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3002636	June 23, 2023	Informal	State Violation/Reminder Notice
3002637	June 23, 2023	Informal	State Public Notification requested
3002638	July 12, 2023	Informal	State Public Notification received
3002639	March 19, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 3000410 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2023 · period end March 31, 2023 · first reported May 31, 2023 · EPA return-to-compliance field March 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3002632	April 4, 2023	Informal	State Violation/Reminder Notice
3002633	April 4, 2023	Informal	State Public Notification requested
3002634	April 24, 2023	Informal	State Public Notification received
3002635	March 19, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 3000409 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start January 1, 2023 · period end January 31, 2023 · first reported May 31, 2023 · EPA return-to-compliance field January 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3002628	February 9, 2023	Informal	State Violation/Reminder Notice
3002629	February 9, 2023	Informal	State Public Notification requested
3002630	February 16, 2023	Resolving	State Compliance achieved
3002631	February 16, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 3000408 · Styrene · Volatile Organic Chemicals

Noncompliance period start July 1, 2022 · period end September 30, 2022 · first reported December 14, 2022 · EPA return-to-compliance field September 30, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3002626	October 26, 2022	Resolving	State Compliance achieved
3002624	December 6, 2022	Informal	State Violation/Reminder Notice
3002625	December 6, 2022	Informal	State Public Notification requested
3002627	December 6, 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