WI2650062 · Wisconsin
ELKHORN WATERWORKS
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 5
- EPA health-based flag
- 3
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 1
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 140 days. The interval uses the reporting periods and dates on file.
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 2200187 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start November 1, 2021 · period end March 21, 2022 · first reported March 2, 2022 · EPA return-to-compliance field March 21, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2400199 March 17, 2022 Informal State Violation/Reminder Notice 2200182 March 21, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Source Water (GWR)Violation 2200186 · E. COLI · Ground Water RuleNoncompliance period start October 28, 2021 · period end March 18, 2022 · first reported March 2, 2022 · EPA return-to-compliance field March 18, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2200176 March 17, 2022 Informal State Violation/Reminder Notice 2200177 March 17, 2022 Informal State Public Notification requested 2200183 March 18, 2022 Resolving State Compliance achieved 2200184 May 6, 2022 Informal State Public Notification received EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 2100175 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2021 · period end March 31, 2021 · first reported May 26, 2021 · EPA return-to-compliance field March 31, 2021
7 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2100143 January 28, 2021 Informal State Bilateral Compliance Agreement signed 2100144 January 28, 2021 Informal State Public Notification requested 2100145 January 28, 2021 Informal State Compliance Meeting conducted 2100146 January 28, 2021 Informal State Formal Notice of Violation issued 2100156 March 26, 2021 Informal State Public Notification received 2200173 June 16, 2021 Informal State Public Notification received 2400189 October 20, 2021 Resolving State Compliance achieved EPA health-based flag · Resolved
Lead Service Line Replacement (LSLR)Violation 2100185 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start November 1, 2020 · period end September 21, 2022 · first reported December 2, 2021 · EPA return-to-compliance field September 21, 2022
6 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2200178 March 17, 2022 Informal State Formal Notice of Violation issued 2200179 March 17, 2022 Informal State Public Notification requested 2200181 March 21, 2022 Informal State Public Notification received 2200186 June 29, 2022 Formal State Consent Decree/Judgement 2200187 July 14, 2022 Informal State Public Notification received 2200188 September 21, 2022 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 2100174 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start October 1, 2020 · period end December 31, 2020 · first reported March 3, 2021 · EPA return-to-compliance field December 31, 2020
6 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2100138 January 28, 2021 Informal State Bilateral Compliance Agreement signed 2100139 January 28, 2021 Informal State Formal Notice of Violation issued 2100140 January 28, 2021 Informal State Compliance Meeting conducted 2100141 January 28, 2021 Informal State Public Notification requested 2200171 June 16, 2021 Informal State Public Notification received 2400190 October 20, 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