Water Quality in Wausau, WI (54421)
EPA violation data for public water systems serving ZIP code 54421.
No Health-Based Violations
None of the 13 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There is1 monitoring/reporting violation (missed testing deadlines), all resolved.
Better than 29% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
3,468
Population
13
Water Systems
1
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (13)
Wausau Waterworks
Colby Waterworks
In The Park
Unity Early Learning Center
Owen Mennonite Church & School
All resolvedNorms Buckhorn Bar
Fuzzys Midway Bar
St Paul Lutheran Church
Countryside Inn
Colby Cheese House
Airport Bar
Billy Jacks Place
Rotirotis Pizza
Contaminants Found
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Sep 2025
How Does This Compare?
Wausau (54421) has more violations than 29% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 1, most of which are monitoring/reporting issues.
Water Filter Recommendations
No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.