WI8660304 · Wisconsin

SHELL LAKE WATERWORKS

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

Violation records shown: 5
EPA health-based flag: 1
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 2

Counties listed by EPA · Washburn 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 3 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 10 days. The interval uses the reporting periods and dates on file.

Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 2600054 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start July 2, 2025 · first reported September 1, 2026
No linked action row appears in the records shown.
Monitoring or reporting · Resolved
Notification, Known or Potential LSLViolation 2500053 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions
Noncompliance period start July 2, 2025 · period end July 2, 2025 · first reported December 17, 2025 · EPA return-to-compliance field July 2, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
2500098 July 2, 2025 Resolving State Compliance achieved
Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 2500051 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start October 17, 2024 · first reported August 28, 2025
No linked action row appears in the records shown.

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2500098	July 2, 2025	Resolving	State Compliance achieved

EPA health-based flag · Resolved

LSL InventoryViolation 2500050 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end July 3, 2025 · first reported August 28, 2025 · EPA return-to-compliance field July 3, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9999900000000000001	June 18, 2025	Informal	Federal Violation/Reminder Notice
2500099	July 3, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Lead Consumer NoticeViolation 2400035 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start January 1, 2024 · period end January 11, 2024 · first reported August 28, 2025 · EPA return-to-compliance field January 11, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2400094	January 11, 2024	Resolving	State Compliance achieved
2400095	January 12, 2024	Informal	State Violation/Reminder Notice

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