WI2650060 · Wisconsin

WILLIAMS BAY WATERWORKS

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

Violation records shown: 14
EPA health-based flag: 1
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 6

Counties listed by EPA · Walworth 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 5 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 109 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Unaddressed by formal action
Initial, Follow-up, or Routine Source Water M/RViolation 2600133 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start January 1, 2026 · first reported September 1, 2026
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Water Quality Parameter M/RViolation 2600132 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start January 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 · Archived
Water Quality Parameter M/RViolation 2600131 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start January 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.

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 2500127 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start September 11, 2025 · period end December 29, 2025 · first reported December 17, 2025 · EPA return-to-compliance field December 29, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2600121	December 29, 2025	Resolving	State Compliance achieved
2600123	April 14, 2026	Informal	State Violation/Reminder Notice

Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 2600136 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start July 1, 2025 · first reported September 1, 2026
No linked action row appears in the records shown.
Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 2600135 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start July 1, 2025 · first reported September 1, 2026
No linked action row appears in the records shown.
Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 2600134 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start July 1, 2025 · first reported September 1, 2026
No linked action row appears in the records shown.

EPA health-based flag · Resolved

Public EducationViolation 2500126 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start July 1, 2025 · period end September 26, 2025 · first reported December 17, 2025 · EPA return-to-compliance field September 26, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2600109	September 26, 2025	Resolving	State Compliance achieved
2600112	November 18, 2025	Informal	State Violation/Reminder Notice
2600113	November 18, 2025	Informal	State Public Notification requested
2600120	December 29, 2025	Informal	State Public Notification received

Monitoring or reporting · Archived

Water Quality Parameter M/RViolation 2500123 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start January 1, 2025 · period end June 30, 2025 · first reported August 28, 2025 · EPA return-to-compliance field June 30, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2600118	November 20, 2025	Informal	State Violation/Reminder Notice
2600119	November 20, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Water Quality Parameter M/RViolation 2500122 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start January 1, 2025 · period end June 30, 2025 · first reported August 28, 2025 · EPA return-to-compliance field June 30, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2600116	November 20, 2025	Informal	State Violation/Reminder Notice
2600117	November 20, 2025	Informal	State Public Notification requested

Monitoring or reporting · Unaddressed by formal action

Initial Tap Sampling for Pb and CuViolation 2500121 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start January 1, 2025 · first reported August 28, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2600110	October 15, 2025	Informal	State Violation/Reminder Notice
2600111	October 15, 2025	Informal	State Public Notification requested
2600114	November 20, 2025	Informal	State Violation/Reminder Notice
2600115	November 20, 2025	Informal	State Public Notification requested

Other or unclassified · Resolved

Consumer Confidence Report Inadequate ReportingViolation 2100093 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2021 · period end October 18, 2021 · first reported December 2, 2021 · EPA return-to-compliance field October 18, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2100085	August 10, 2021	Informal	State Violation/Reminder Notice
2200089	October 18, 2021	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 2100092 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2021 · period end October 18, 2021 · first reported December 2, 2021 · EPA return-to-compliance field October 18, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2100086	August 10, 2021	Informal	State Violation/Reminder Notice
2200088	October 18, 2021	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 2000090 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2020 · period end February 15, 2021 · first reported November 25, 2020 · EPA return-to-compliance field February 15, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2100084	February 12, 2021	Informal	State Violation/Reminder Notice
2200087	February 15, 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