WI7440812 · Wisconsin
NORTHERNAIRE SANITARY DISTRICT
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 9
- EPA health-based flag
- 1
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 6
Counties listed by EPA · Oneida 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 9 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 30 days. The interval uses the reporting periods and dates on file.
Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 2500090 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2025 · period end July 30, 2025 · first reported December 17, 2025 · EPA return-to-compliance field July 30, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500094 July 18, 2025 Informal State Violation/Reminder Notice 2500098 July 30, 2025 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 2500089 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2025 · period end July 28, 2025 · first reported December 17, 2025 · EPA return-to-compliance field July 28, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500093 July 18, 2025 Informal State Violation/Reminder Notice 2500095 July 28, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 2500086 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start May 1, 2025 · period end May 31, 2025 · first reported August 28, 2025 · EPA return-to-compliance field May 31, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500080 June 2, 2025 Resolving State Compliance achieved 2500081 June 16, 2025 Informal State Violation/Reminder Notice 2500082 June 16, 2025 Informal State Public Notification requested 2500092 July 8, 2025 Informal State Public Notification received Monitoring or reporting · Resolved
Reporting, Assessment Forms (RTCR)Violation 2500083 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start December 23, 2024 · period end January 2, 2025 · first reported August 28, 2025 · EPA return-to-compliance field January 2, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500070 January 2, 2025 Informal State Violation/Reminder Notice 2500071 January 2, 2025 Informal State Public Notification requested 2500072 January 2, 2025 Informal State Public Notification received 2500073 January 2, 2025 Resolving State Compliance achieved EPA health-based flag · Resolved
Treatment Technique, Level 1 Assessment (RTCR)Violation 2500082 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start December 23, 2024 · period end January 2, 2025 · first reported August 28, 2025 · EPA return-to-compliance field January 2, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500066 January 2, 2025 Informal State Public Notification received 2500067 January 2, 2025 Resolving State Compliance achieved 2500068 January 2, 2025 Informal State Violation/Reminder Notice 2500069 January 2, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 2400014 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start June 1, 2024 · period end August 26, 2025 · first reported August 28, 2025 · EPA return-to-compliance field August 26, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500054 October 4, 2024 Informal State Violation/Reminder Notice 2500055 October 4, 2024 Informal State Public Notification requested 2500096 July 28, 2025 Informal State Public Notification received 2500099 August 26, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 2500081 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported August 28, 2025 · EPA return-to-compliance field December 31, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500056 October 4, 2024 Informal State Violation/Reminder Notice 2500057 October 4, 2024 Informal State Public Notification requested 2500097 July 28, 2025 Informal State Public Notification received 2500100 September 24, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 2500080 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported August 28, 2025 · EPA return-to-compliance field December 31, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500056 October 4, 2024 Informal State Violation/Reminder Notice 2500057 October 4, 2024 Informal State Public Notification requested 2500097 July 28, 2025 Informal State Public Notification received 2500100 September 24, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 2200013 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start October 1, 2021 · period end October 31, 2021 · first reported March 2, 2022 · EPA return-to-compliance field October 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2200018 November 8, 2021 Informal State Violation/Reminder Notice 2200019 November 8, 2021 Informal State Public Notification requested 2200020 November 10, 2021 Resolving State Compliance achieved 2200021 December 1, 2021 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