Water Quality in Waukesha, WI (53146)
EPA violation data for public water systems serving ZIP code 53146.
Active Health Violations
54 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 94% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
7,285
Population
31
Water Systems
70
Violations (5yr)
54
Health-Based
Location
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Water Systems Serving This Area (31)
Waukesha Water Utility
54 health-basedPoplar Creek Church
Asia Restaurant
Peace Lutheran Church
Apple Ridge Academy - New Berlin
Apple Ridge Academy - Pewaukee
Deer Haven Golf Course
Quick Mart Bp
Maravilla Montessori School
Deer Haven Banquet Hall
Brick House
Chinook Program Center New Troop House
Girl Scouts Of Wi. Se - Resource Center
Chinook Program Ctr - New Troop House
Chinook Program Ctr - Day Camp Well - Old Ranger Farmhouse
Chinook Program Ctr - Activity Station
West Side Pub
Chinook Program Ctr - Rangers House & Tent Site
Camp Winding River - Site #5
Day Tots Child Care
Rocky Knoll
Highview Subdivision
D & H Graphics
Camp Winding River - Site #6
Cycle World Ltd
Asia Restaurant
Waukesha Sda Church
Brian Rindt Service
Beacon Gas
Oaw Indoor Sports Complex
All resolvedChinook Program Center Old Outdoor Kitch
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Sep 2025
How Does This Compare?
Waukesha (53146) has more violations than 94% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 70.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Whole House Carbon Filter
A solid baseline for improving overall water quality. Reduces chlorine, sediment, and many common contaminants throughout your entire home.
Targets:Chlorine, Sediment, Taste & Odor
Look for:NSF/ANSI 42 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.