WI2681104 · Wisconsin
KNOLLCREST
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 3
- EPA health-based flag
- 1
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 2
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 2 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 44.5 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Archived
Monitoring, RegularViolation 2600141 · Di(2-ethylhexyl) phthalate · Synthetic Organic ChemicalsNoncompliance period start April 1, 2026 · period end June 30, 2026 · first reported September 1, 2026 · EPA return-to-compliance field June 30, 2026
No linked action row appears in the records shown.EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 2100133 · Di(2-ethylhexyl) phthalate · Synthetic Organic ChemicalsNoncompliance period start August 1, 2021 · period end August 31, 2021 · first reported December 2, 2021 · EPA return-to-compliance field August 31, 2021
7 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2100496 September 17, 2021 Informal State Public Notification requested 2100497 September 23, 2021 Informal State Public Notification received 2200498 December 8, 2021 Informal State Formal Notice of Violation issued 2200499 December 9, 2021 Informal State Compliance Meeting conducted 2200500 December 16, 2021 Informal State Public Notification received 2200501 March 23, 2022 Informal State Public Notification received 2300502 February 8, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 2100132 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2021 · period end March 1, 2021 · first reported May 26, 2021 · EPA return-to-compliance field March 1, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2100493 March 1, 2021 Resolving State Compliance achieved 2100494 March 1, 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