WI1250075 · Wisconsin

BARNEVELD WATERWORKS

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

Violation records shown: 32
EPA health-based flag: 3
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 27

Counties listed by EPA · Iowa 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 30 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 2600084 · Radium-228 · Radionuclides and Revised Rad 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
2600038	April 28, 2026	Informal	State Violation/Reminder Notice
2600039	April 28, 2026	Informal	State Public Notification requested
2600041	May 5, 2026	Resolving	State Compliance achieved
2600043	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600083 · Combined Uranium · Radionuclides and Revised Rad 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
2600038	April 28, 2026	Informal	State Violation/Reminder Notice
2600039	April 28, 2026	Informal	State Public Notification requested
2600041	May 5, 2026	Resolving	State Compliance achieved
2600043	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600082 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad 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
2600038	April 28, 2026	Informal	State Violation/Reminder Notice
2600039	April 28, 2026	Informal	State Public Notification requested
2600041	May 5, 2026	Resolving	State Compliance achieved
2600043	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600081 · Radium-226 · Radionuclides and Revised Rad 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
2600038	April 28, 2026	Informal	State Violation/Reminder Notice
2600039	April 28, 2026	Informal	State Public Notification requested
2600041	May 5, 2026	Resolving	State Compliance achieved
2600043	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600080 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad 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
2600038	April 28, 2026	Informal	State Violation/Reminder Notice
2600039	April 28, 2026	Informal	State Public Notification requested
2600041	May 5, 2026	Resolving	State Compliance achieved
2600043	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600079 · CHLOROBENZENE · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600078 · Tetrachloroethylene · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600077 · 1,1,2-Trichloroethane · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600076 · Trichloroethylene · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600075 · 1,2-Dichloropropane · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600074 · Carbon tetrachloride · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600073 · 1,1,1-Trichloroethane · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600072 · 1,2-Dichloroethane · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600071 · trans-1,2-Dichloroethylene · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600070 · 1,1-Dichloroethylene · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600069 · Vinyl chloride · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600068 · p-Dichlorobenzene · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600067 · o-Dichlorobenzene · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600066 · DICHLOROMETHANE · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600065 · Xylenes, Total · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600064 · Benzene · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600063 · Toluene · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600062 · Ethylbenzene · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600061 · Styrene · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600060 · cis-1,2-Dichloroethylene · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2600059 · 1,2,4-Trichlorobenzene · Volatile Organic Chemicals

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
2600036	April 28, 2026	Informal	State Violation/Reminder Notice
2600037	April 28, 2026	Informal	State Public Notification requested
2600040	May 5, 2026	Resolving	State Compliance achieved
2600042	June 23, 2026	Informal	State Public Notification received

Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 2500032 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start October 17, 2024 · first reported December 17, 2025
No linked action row appears in the records shown.
Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 2500029 · 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.

EPA health-based flag · Resolved

LSL InventoryViolation 2500028 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end July 10, 2025 · first reported August 28, 2025 · EPA return-to-compliance field July 10, 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
2500026	July 10, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

LSL ReportingViolation 2500027 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end July 10, 2025 · first reported August 28, 2025 · EPA return-to-compliance field July 10, 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
2500025	July 10, 2025	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 2100004 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 2, 2021 · EPA return-to-compliance field September 30, 2021

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2100010	September 14, 2021	Informal	State Formal Notice of Violation issued
2100011	September 14, 2021	Informal	State Compliance Meeting conducted
2200019	October 1, 2021	Resolving	State Compliance achieved
2200017	November 15, 2021	Informal	State Public Notification received
2200020	May 17, 2022	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 2100003 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start April 1, 2021 · period end June 30, 2021 · first reported September 9, 2021 · EPA return-to-compliance field June 30, 2021

6 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2100008	August 6, 2021	Informal	State Public Notification requested
2100009	August 26, 2021	Informal	State Public Notification received
2200018	October 1, 2021	Resolving	State Compliance achieved
2200012	October 26, 2021	Informal	State Formal Notice of Violation issued
2200013	November 2, 2021	Informal	State Compliance Meeting conducted
2200021	May 17, 2022	Formal	State Administrative/Compliance Order without penalty issued

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