WI1220120 · Wisconsin
TENNYSON WATERWORKS
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 4
- EPA health-based flag
- 1
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 3
Counties listed by EPA · Grant 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 4 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 23 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 2500065 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2025 · period end January 29, 2025 · first reported August 28, 2025 · EPA return-to-compliance field January 29, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500052 January 28, 2025 Informal State Violation/Reminder Notice 2500053 January 29, 2025 Resolving State Compliance achieved EPA health-based flag · Resolved
Treatment Technique No Certif. OperatorViolation 2400061 · Stage 1 Disinfectants and Disinfection Byproducts Rule · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start March 1, 2024 · period end March 19, 2024 · first reported August 28, 2025 · EPA return-to-compliance field March 19, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2400046 March 14, 2024 Informal State Violation/Reminder Notice 2400047 March 19, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 2400060 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2024 · period end January 8, 2024 · first reported August 28, 2025 · EPA return-to-compliance field January 8, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2400044 January 5, 2024 Informal State Violation/Reminder Notice 2400045 January 8, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 2300059 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start June 1, 2023 · period end September 13, 2024 · first reported August 28, 2025 · EPA return-to-compliance field September 13, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2400042 October 31, 2023 Informal State Violation/Reminder Notice 2400043 October 31, 2023 Informal State Public Notification requested 2400048 June 27, 2024 Informal State Public Notification received 2400049 September 13, 2024 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