WI7641359 · Wisconsin

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

Violation records shown: 3
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 3

Counties listed by EPA · Vilas County, Wisconsin

Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.

Violations and what followed

Among 2 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 60.5 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Archived
Monitoring, RegularViolation 2600035 · Nitrate · Nitrate Rule
Noncompliance period start April 1, 2026 · period end June 30, 2026 · first reported September 1, 2026 · EPA return-to-compliance field June 30, 2026
No linked action row appears in the records shown.

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600033 · Nitrate · Nitrate Rule

Noncompliance period start October 1, 2025 · period end December 31, 2025 · first reported March 2, 2026 · EPA return-to-compliance field December 31, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2600058	January 8, 2026	Informal	State Violation/Reminder Notice
2600059	January 8, 2026	Informal	State Public Notification requested
2600060	January 13, 2026	Resolving	State Compliance achieved
2600061	January 16, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 2100029 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start May 1, 2021 · period end May 31, 2021 · first reported September 9, 2021 · EPA return-to-compliance field May 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2100049	June 8, 2021	Resolving	State Compliance achieved
2100050	July 8, 2021	Informal	State Violation/Reminder Notice
2100051	July 8, 2021	Informal	State Public Notification requested
2200053	October 29, 2021	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