Water Quality in Waukesha, WI (53058)
EPA violation data for public water systems serving ZIP code 53058.
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.
3,405
Population
25
Water Systems
73
Violations (5yr)
54
Health-Based
Location
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Water Systems Serving This Area (25)
Waukesha Water Utility
54 health-basedParquelynn Village
Nashotah House
All resolvedLake Country Bible Church
St Joan Of Arc School
All resolvedMoose Lake Beach Inc
Nashotah House Seminary 1
Milk Can Hamburgers
Pantheon Industries Inc
All resolvedPicnic Basket Nashotah
Techniplas Us Llc Plant 2
Techniplas Us Llc Warehouse
Red Circle Inn
St Joan Of Arc Church
Nashotah Fire Dept
Great Lakes Tire Service
Greenlawn Memorial Park & Chapel Of Eternal Light
Nashotah Village Hall
Guppies Pub
Knollwood Lodge A
Dickten & Masch Plant 1
Nashotah House Seminary Campground
Pk Service & Nashotah Garage
Knollwood Lodge B
Techniplas Us Llc Plant 1
Contaminants Found
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Sep 2025
How Does This Compare?
Waukesha (53058) has more violations than 94% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 73.
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.