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Failing Water Quality

Waukesha, WI 53187

Waukesha County · Population served: 79,389

Water Systems Serving This Area

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PEWAUKEE CITY WATER AND SEWER UTILITY
Groundwater · Pop. 8,671
PWSID: WI2680214
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WAUKESHA WATER UTILITY
Surface water · Pop. 70,718
PWSID: WI2680238

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
4.0
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

10 detected 3 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFHxS69.0 ppt10 ppt10 pptExceeded
PFHxA40.0 pptNo standard400 pptUnregulated
6:2 FTS35.0 pptNo standard—Unregulated
PFBS27.0 ppt2000 ppt100 pptBelow limit
PFPeA24.0 pptNo standard—Unregulated
PFPeS21.0 pptNo standard—Unregulated
PFBA13.0 pptNo standard500 pptUnregulated
PFOS12.0 ppt4 ppt4 pptExceeded

Violation History (Last 5 Years)

331Total (5yr)
258Health-Based
5Major