Tap Water Quality in Waukesha, Wisconsin (ZIP 53186)
Serving Waukesha, Wisconsin
Is the Tap Water Safe in Waukesha, Wisconsin?
Tap water in Waukesha, Wisconsin (ZIP 53186) has 14 contaminants above EPA health-based guidelines (MCLGs) in at least one of the 1 city served. We recommend reviewing detailed city reports below and considering a certified water filter for additional protection.
ZIP 53186 is served by 4 water utilities providing water to Waukesha. Water quality varies by utility and city. Click on the cities below to see detailed reports for your specific area.
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Water Quality Report for ZIP 53186
5 contaminants above EPA health guidelines
These levels represent the worst case across all cities in this ZIP code. Check individual city reports for specific details.
Found in Waukesha
Found in Waukesha
Found in Waukesha
Found in Waukesha
Found in Waukesha
Water Utilities Serving ZIP 53186
WAUKESHA WATER UTILITY
70,718
Not available
Water Source:
Groundwater
Contaminants Tested:
133
SCHOENSTATT SISTERS OF MARY
80
Not available
Water Source:
Groundwater
Contaminants Tested:
86
DURHAM MEADOWS WATER TRUST
700
Not available
Water Source:
Groundwater
Contaminants Tested:
101
HUNTINGTON PARK
600
Not available
Water Source:
Groundwater
Contaminants Tested:
86
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Best Water Filters for Waukesha (ZIP 53186)
Based on the contaminants found in your area, we recommend NSF-certified water filters that can remove the specific contaminants above health guidelines.
Filter guides for the contaminants detected here:
Browse filters certified to remove Arsenic
See every filter in our database independently certified to reduce Arsenic, with the NSF/ANSI standard behind each listing — consumer brands shown first, no marketing spin.
Browse filters certified for ArsenicFrequently Asked Questions about Waukesha Tap Water
Is the tap water safe in Waukesha, Wisconsin (ZIP 53186)?
Which water utilities serve ZIP code 53186?
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Should I use a water filter in Waukesha (ZIP 53186)?
What cities are in ZIP code 53186?
How we built this page
Water-quality data on this page comes from public federal and state records for the 4 utilityies serving ZIP 53186. We refresh each utility's record whenever its underlying source publishes new data.
- Contaminants & violations: EPA Safe Drinking Water Information System (SDWIS) plus the Unregulated Contaminant Monitoring Rule (UCMR-5) for PFAS and emerging contaminants.
- Annual reports: the most recent published Consumer Confidence Report (CCR) from each utility serving this ZIP, where available.
- Service area & contact: EPA SDWIS plus the Wisconsin Department of Environmental Protection / Drinking Water program.
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