WI4710354 · Wisconsin
WINNECONNE WATERWORKS
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 10
- EPA health-based flag
- 7
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 0
Counties listed by EPA · Winnebago 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 10 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 91 days. The interval uses the reporting periods and dates on file.
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 2500132 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 17, 2024 · period end June 3, 2025 · first reported August 28, 2025 · EPA return-to-compliance field June 3, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500217 June 3, 2025 Resolving State Compliance achieved 2500231 July 15, 2025 Informal State Violation/Reminder Notice EPA health-based flag · Resolved
LSL InventoryViolation 2500131 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · period end May 23, 2025 · first reported August 28, 2025 · EPA return-to-compliance field May 23, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500215 May 23, 2025 Resolving State Compliance achieved 2500216 June 3, 2025 Informal State Public Notification received EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 2400114 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad RuleNoncompliance period start July 1, 2024 · period end September 30, 2024 · first reported August 28, 2025 · EPA return-to-compliance field September 30, 2024
8 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500198 October 21, 2024 Informal State Formal Notice of Violation issued 2500199 October 21, 2024 Formal State Administrative/Compliance Order without penalty issued 2500200 October 21, 2024 Informal State Public Notification received 2500201 October 21, 2024 Informal State Public Notification received 2500202 October 21, 2024 Informal State Public Notification received 2500222 October 21, 2024 Formal State Administrative/Compliance Order without penalty issued 2500203 December 13, 2024 Informal State Public Notification received 2500227 May 16, 2025 Resolving State Compliance achieved Other or unclassified · Resolved
Notification, StateViolation 2400113 · Groundwater Rule · Ground Water RuleNoncompliance period start April 15, 2024 · period end May 17, 2024 · first reported August 28, 2025 · EPA return-to-compliance field May 17, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500228 May 17, 2024 Resolving State Compliance achieved 2400138 June 27, 2024 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 2400116 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start February 26, 2024 · period end December 13, 2024 · first reported August 28, 2025 · EPA return-to-compliance field December 13, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500205 December 13, 2024 Resolving State Compliance achieved 2500232 July 15, 2025 Informal State Violation/Reminder Notice EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 2400115 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2024 · period end March 31, 2024 · first reported August 28, 2025 · EPA return-to-compliance field March 31, 2024
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500196 April 1, 2024 Informal State Formal Notice of Violation issued 2500197 April 1, 2024 Formal State Administrative/Compliance Order without penalty issued 2500221 April 1, 2024 Formal State Administrative/Compliance Order without penalty issued 2500204 December 13, 2024 Informal State Public Notification received 2500225 May 16, 2025 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 2400112 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad RuleNoncompliance period start October 1, 2023 · period end December 31, 2023 · first reported August 28, 2025 · EPA return-to-compliance field December 31, 2023
7 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2400133 November 22, 2023 Informal State Formal Notice of Violation issued 2400134 November 22, 2023 Formal State Administrative/Compliance Order without penalty issued 2500220 November 22, 2023 Formal State Administrative/Compliance Order without penalty issued 2400135 December 26, 2023 Informal State Public Notification received 2400136 March 18, 2024 Informal State Public Notification received 2400137 June 17, 2024 Informal State Public Notification received 2500224 May 16, 2025 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 2300111 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad RuleNoncompliance period start July 1, 2023 · period end September 30, 2023 · first reported August 28, 2025 · EPA return-to-compliance field September 30, 2023
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2400129 October 2, 2023 Informal State Formal Notice of Violation issued 2400130 October 2, 2023 Formal State Administrative/Compliance Order without penalty issued 2500219 October 2, 2023 Formal State Administrative/Compliance Order without penalty issued 2400131 October 11, 2023 Informal State Public Notification received 2500223 May 16, 2025 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 2300110 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 28, 2025 · EPA return-to-compliance field June 30, 2023
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2300126 June 21, 2023 Informal State Public Notification received 2300127 July 6, 2023 Informal State Formal Notice of Violation issued 2300128 July 6, 2023 Formal State Administrative/Compliance Order without penalty issued 2500218 July 6, 2023 Formal State Administrative/Compliance Order without penalty issued 2500226 May 16, 2025 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 2100102 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad RuleNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 2, 2021 · EPA return-to-compliance field September 30, 2021
16 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2100112 August 19, 2021 Informal State Violation/Reminder Notice 2100113 August 19, 2021 Informal State Public Notification requested 2100114 August 24, 2021 Informal State Public Notification received 2200115 October 28, 2021 Informal State Formal Notice of Violation issued 2200116 February 14, 2022 Formal State Administrative/Compliance Order without penalty issued 2200117 March 4, 2022 Informal State Violation/Reminder Notice 2200118 March 4, 2022 Informal State Public Notification requested 2200119 March 7, 2022 Resolving State Compliance achieved 2500214 March 7, 2022 Resolving State Compliance achieved 2200120 April 7, 2022 Informal State Public Notification received 2200122 June 17, 2022 Informal State Public Notification received 2200121 June 30, 2022 Informal State Public Notification received 2300123 November 15, 2022 Informal State Public Notification received 2300124 June 12, 2023 Informal State Public Notification received 2300125 June 21, 2023 Informal State Public Notification received 2400132 October 11, 2023 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