WI2680253 · Wisconsin
BROOKFIELD WATER UTILITY
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 21
- EPA health-based flag
- 1
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 17
Counties listed by EPA · Waukesha 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 18 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 282 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring, RegularViolation 2501180 · Nitrate · Nitrate 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 2500644 March 17, 2025 Informal State Violation/Reminder Notice 2500645 March 17, 2025 Informal State Public Notification requested 2500652 March 24, 2025 Resolving State Compliance achieved 2500653 June 23, 2025 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2501179 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported August 28, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500643 March 17, 2025 Informal State Violation/Reminder Notice 2500646 March 17, 2025 Informal State Public Notification requested 2500654 June 23, 2025 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2501178 · Radium-228 · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported August 28, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500643 March 17, 2025 Informal State Violation/Reminder Notice 2500646 March 17, 2025 Informal State Public Notification requested 2500654 June 23, 2025 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring, RegularViolation 2501176 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported August 28, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2500643 March 17, 2025 Informal State Violation/Reminder Notice 2500646 March 17, 2025 Informal State Public Notification requested 2500654 June 23, 2025 Informal State Public Notification received Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 2101117 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 24, 2020 · period end May 7, 2021 · first reported March 3, 2021 · EPA return-to-compliance field May 7, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2100632 April 19, 2021 Informal State Violation/Reminder Notice 2100638 May 7, 2021 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 2101116 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start April 1, 2020 · period end June 30, 2020 · first reported March 3, 2021 · EPA return-to-compliance field June 30, 2020
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2100611 April 25, 2020 Informal State Compliance Meeting conducted 2100612 April 25, 2020 Informal State Formal Notice of Violation issued 2100616 March 29, 2021 Resolving State Compliance achieved 2100633 May 7, 2021 Informal State Public Notification received Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 2101115 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start December 31, 2019 · period end May 7, 2021 · first reported March 3, 2021 · EPA return-to-compliance field May 7, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2100631 April 19, 2021 Informal State Violation/Reminder Notice 2100636 May 7, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 2001089 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start December 31, 2019 · period end May 7, 2021 · first reported May 28, 2020 · EPA return-to-compliance field May 7, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2100630 April 19, 2021 Informal State Violation/Reminder Notice 2100637 May 7, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 2101113 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2019 · period end December 31, 2019 · first reported March 3, 2021 · EPA return-to-compliance field December 31, 2019
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2100625 March 10, 2020 Resolving State Compliance achieved 2100615 June 15, 2020 Informal State Public Notification received 2100628 April 19, 2021 Informal State Violation/Reminder Notice 2100629 April 19, 2021 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, RegularViolation 2101111 · Chromium · Inorganic ChemicalsNoncompliance period start January 1, 2019 · period end October 10, 2019 · first reported March 3, 2021 · EPA return-to-compliance field October 10, 2019
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2000623 October 10, 2019 Resolving State Compliance achieved 2100613 June 15, 2020 Informal State Public Notification received 2100626 April 19, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, RegularViolation 2101110 · Nickel · Inorganic ChemicalsNoncompliance period start January 1, 2019 · period end October 10, 2019 · first reported March 3, 2021 · EPA return-to-compliance field October 10, 2019
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2000623 October 10, 2019 Resolving State Compliance achieved 2100613 June 15, 2020 Informal State Public Notification received 2100626 April 19, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, RegularViolation 2101109 · Cadmium · Inorganic ChemicalsNoncompliance period start January 1, 2019 · period end October 10, 2019 · first reported March 3, 2021 · EPA return-to-compliance field October 10, 2019
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2000623 October 10, 2019 Resolving State Compliance achieved 2100613 June 15, 2020 Informal State Public Notification received 2100626 April 19, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, RegularViolation 2101108 · Barium · Inorganic ChemicalsNoncompliance period start January 1, 2019 · period end October 10, 2019 · first reported March 3, 2021 · EPA return-to-compliance field October 10, 2019
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2000623 October 10, 2019 Resolving State Compliance achieved 2100613 June 15, 2020 Informal State Public Notification received 2100626 April 19, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, RegularViolation 2101107 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2019 · period end October 10, 2019 · first reported March 3, 2021 · EPA return-to-compliance field October 10, 2019
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2000623 October 10, 2019 Resolving State Compliance achieved 2100613 June 15, 2020 Informal State Public Notification received 2100626 April 19, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, RegularViolation 2101106 · Fluoride · Inorganic ChemicalsNoncompliance period start January 1, 2019 · period end October 10, 2019 · first reported March 3, 2021 · EPA return-to-compliance field October 10, 2019
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2000623 October 10, 2019 Resolving State Compliance achieved 2100613 June 15, 2020 Informal State Public Notification received 2100626 April 19, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, RegularViolation 2101105 · Nitrite · Nitrate RuleNoncompliance period start January 1, 2019 · period end October 10, 2019 · first reported March 3, 2021 · EPA return-to-compliance field October 10, 2019
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2000623 October 10, 2019 Resolving State Compliance achieved 2100613 June 15, 2020 Informal State Public Notification received 2100626 April 19, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, RegularViolation 2101104 · Selenium · Inorganic ChemicalsNoncompliance period start January 1, 2019 · period end October 10, 2019 · first reported March 3, 2021 · EPA return-to-compliance field October 10, 2019
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2000623 October 10, 2019 Resolving State Compliance achieved 2100613 June 15, 2020 Informal State Public Notification received 2100626 April 19, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, RegularViolation 2101103 · Antimony, Total · Inorganic ChemicalsNoncompliance period start January 1, 2019 · period end October 10, 2019 · first reported March 3, 2021 · EPA return-to-compliance field October 10, 2019
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2000623 October 10, 2019 Resolving State Compliance achieved 2100613 June 15, 2020 Informal State Public Notification received 2100626 April 19, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, RegularViolation 2101102 · Beryllium, Total · Inorganic ChemicalsNoncompliance period start January 1, 2019 · period end October 10, 2019 · first reported March 3, 2021 · EPA return-to-compliance field October 10, 2019
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2000623 October 10, 2019 Resolving State Compliance achieved 2100613 June 15, 2020 Informal State Public Notification received 2100626 April 19, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, RegularViolation 2101101 · Thallium, Total · Inorganic ChemicalsNoncompliance period start January 1, 2019 · period end October 10, 2019 · first reported March 3, 2021 · EPA return-to-compliance field October 10, 2019
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2000623 October 10, 2019 Resolving State Compliance achieved 2100613 June 15, 2020 Informal State Public Notification received 2100626 April 19, 2021 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, RegularViolation 2101100 · Mercury · Inorganic ChemicalsNoncompliance period start January 1, 2019 · period end October 10, 2019 · first reported March 3, 2021 · EPA return-to-compliance field October 10, 2019
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2000623 October 10, 2019 Resolving State Compliance achieved 2100613 June 15, 2020 Informal State Public Notification received 2100626 April 19, 2021 Informal State Violation/Reminder Notice
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