WI6060226 · Wisconsin

COCHRANE 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: 4

Counties listed by EPA · Buffalo 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 3 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Resolved

Treatment Technique No Certif. OperatorViolation 2500020 · Stage 1 Disinfectants and Disinfection Byproducts Rule · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start November 2, 2024 · period end November 5, 2024 · first reported August 28, 2025 · EPA return-to-compliance field November 5, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2500021	November 5, 2024	Informal	State Violation/Reminder Notice
2500022	November 5, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 2400002 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start August 1, 2024 · period end August 31, 2024 · first reported August 28, 2025 · EPA return-to-compliance field August 31, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2400003	September 5, 2024	Informal	State Public Notification requested
2400004	September 5, 2024	Informal	State Violation/Reminder Notice
2400005	September 24, 2024	Resolving	State Compliance achieved
2400006	September 24, 2024	Informal	State Public Notification received

Monitoring or reporting · Resolved

Lead Consumer NoticeViolation 2400001 · Lead and Copper Rule · Lead and Copper Rule

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

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2400001	January 1, 2024	Resolving	State Compliance achieved
2400002	January 4, 2024	Informal	State Violation/Reminder Notice

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 2600024 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 2, 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
2600026	October 8, 2024	Informal	State Violation/Reminder Notice
2600027	October 8, 2024	Informal	State Public Notification requested
2600028	April 7, 2025	Informal	State Public Notification received

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 2600023 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported March 2, 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
2600026	October 8, 2024	Informal	State Violation/Reminder Notice
2600027	October 8, 2024	Informal	State Public Notification requested
2600028	April 7, 2025	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