EPA public water records · 55133
Waukesha County, Wisconsin
Find listed community water systems and their documented follow-up in federal fiscal 2026Q3.
- Systems with linked histories
- 50
- Systems with unresolved health-based records
- 2
- Of those, systems with a formally addressed health-based record
- 0
These counts cover the linked records shown here. A county listing can cover only part of the county or reflect a mailing location.
Find your water system
- APARTMENTS OF STONERIDGEWI2682761 · Wisconsin · 5 violation records · 0 unresolved health-based in this snapshot
- ARBORSWI2682795 · Wisconsin · 4 violation records · 0 unresolved health-based in this snapshot
- BRANDYBROOK SUBDIVISIONWI2682639 · Wisconsin · 1 violation records · 0 unresolved health-based in this snapshot
- BROOKFIELD WATER UTILITYWI2680253 · Wisconsin · 21 violation records · 0 unresolved health-based in this snapshot
- BUTLER WATERWORKSWI2680191 · Wisconsin · 2 violation records · 0 unresolved health-based in this snapshot
- CAMBRIDGE PLACE OF DELAFIELDWI2686325 · Wisconsin · 4 violation records · 0 unresolved health-based in this snapshot
- CARRIAGE HILLS CONDOMINIUMSWI2682406 · Wisconsin · 9 violation records · 1 unresolved health-based in this snapshot
- DELAFIELD LAKES 402WI2686101 · Wisconsin · 4 violation records · 0 unresolved health-based in this snapshot
- DELAFIELD LAKES 404WI2686114 · Wisconsin · 2 violation records · 0 unresolved health-based in this snapshot
- DELAFIELD WOODS 411WI2686336 · Wisconsin · 3 violation records · 0 unresolved health-based in this snapshot
- DELAFIELD WOODS 828WI2686337 · Wisconsin · 2 violation records · 0 unresolved health-based in this snapshot
- DOUGLAS PLAZA NORTHWI2680288 · Wisconsin · 6 violation records · 0 unresolved health-based in this snapshot
- DOUGLAS PLAZA SOUTHWI2680862 · Wisconsin · 5 violation records · 0 unresolved health-based in this snapshot
- DOUSMAN WATER UTILITYWI2680197 · Wisconsin · 3 violation records · 0 unresolved health-based in this snapshot
- DURHAM MEADOWS WATER TRUSTWI2680213 · Wisconsin · 1 violation records · 0 unresolved health-based in this snapshot
- EAGLE WATERWORKSWI2680198 · Wisconsin · 7 violation records · 0 unresolved health-based in this snapshot
- EMERALD WOODS CONDOSWI2685370 · Wisconsin · 4 violation records · 0 unresolved health-based in this snapshot
- EVERGREENSWI2680290 · Wisconsin · 4 violation records · 0 unresolved health-based in this snapshot
- GENESEE LAKE SCHOOL NORTHWI2680806 · Wisconsin · 1 violation records · 0 unresolved health-based in this snapshot
- GENESEE LAKE SCHOOL SOUTHWI2683331 · Wisconsin · 1 violation records · 0 unresolved health-based in this snapshot
- HALE PARK MEADOWSWI2680216 · Wisconsin · 2 violation records · 0 unresolved health-based in this snapshot
- HARTLAND WATERWORKSWI2680205 · Wisconsin · 1 violation records · 0 unresolved health-based in this snapshot
- HEAVEN CITYWI2680624 · Wisconsin · 1 violation records · 0 unresolved health-based in this snapshot
- HILLS OF WALES APTSWI2680236 · Wisconsin · 5 violation records · 0 unresolved health-based in this snapshot
- KNOLLCRESTWI2681104 · Wisconsin · 3 violation records · 0 unresolved health-based in this snapshot
- LAD LAKEWI2680195 · Wisconsin · 4 violation records · 0 unresolved health-based in this snapshot
- LAKE COUNTRY APARTMENTSWI2682229 · Wisconsin · 2 violation records · 0 unresolved health-based in this snapshot
- LAKE DRIVE WATER TRUSTWI2683440 · Wisconsin · 2 violation records · 0 unresolved health-based in this snapshot
- LANNON WATER UTILITYWI2686008 · Wisconsin · 2 violation records · 0 unresolved health-based in this snapshot
- MUKWONAGO WATERWORKSWI2680209 · Wisconsin · 2 violation records · 0 unresolved health-based in this snapshot
- MUSKEGO WATER UTILITYWI2681741 · Wisconsin · 5 violation records · 0 unresolved health-based in this snapshot
- NASHOTAH HOUSEWI2682512 · Wisconsin · 1 violation records · 0 unresolved health-based in this snapshot
- NORRIS INCWI2680246 · Wisconsin · 87 violation records · 1 unresolved health-based in this snapshot
- OAKTON BEACHWI2681086 · Wisconsin · 2 violation records · 0 unresolved health-based in this snapshot
- OCONOMOWOC WATERWORKSWI2680227 · Wisconsin · 1 violation records · 0 unresolved health-based in this snapshot
- PEWAUKEE CITY WATER AND SEWER UTILITYWI2680214 · Wisconsin · 53 violation records · 0 unresolved health-based in this snapshot
- PEWAUKEE VILLAGE WATERWORKSWI2680229 · Wisconsin · 41 violation records · 0 unresolved health-based in this snapshot
- PIONEER CENTREWI2680212 · Wisconsin · 5 violation records · 0 unresolved health-based in this snapshot
- PRAIRIE VILLAGE WATER TRUSTWI2680277 · Wisconsin · 4 violation records · 0 unresolved health-based in this snapshot
- QUAIL HOLLOW CONDOSWI2686359 · Wisconsin · 4 violation records · 0 unresolved health-based in this snapshot
- SANCTUARY OF DELAFIELDWI2685951 · Wisconsin · 3 violation records · 0 unresolved health-based in this snapshot
- SQUIRES GROVEWI2680201 · Wisconsin · 4 violation records · 0 unresolved health-based in this snapshot
- ST JOHNS NORTHWESTERN ACADEMIESWI2680761 · Wisconsin · 11 violation records · 0 unresolved health-based in this snapshot
- SUSSEX VILLAGE HALL & WATER UTILITYWI2680233 · Wisconsin · 5 violation records · 0 unresolved health-based in this snapshot
- TOWN OF BROOKFIELD SAN DIST 4WI2680239 · Wisconsin · 2 violation records · 0 unresolved health-based in this snapshot
- WAUKESHA WATER UTILITYWI2680238 · Wisconsin · 91 violation records · 0 unresolved health-based in this snapshot
- WELLS ST STATION 425 WESTWI2686466 · Wisconsin · 1 violation records · 0 unresolved health-based in this snapshot
- WELLS ST STATION 435 EASTWI2686619 · Wisconsin · 1 violation records · 0 unresolved health-based in this snapshot
- WILLOW GLEN APARTMENTSWI2683555 · Wisconsin · 5 violation records · 0 unresolved health-based in this snapshot
- WILLOW SPRINGS MHP 2 & 3WI2680232 · Wisconsin · 1 violation records · 0 unresolved health-based in this snapshot
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