Water Quality in Madison, WI (53517)
EPA violation data for public water systems serving ZIP code 53517.
Active Health Violations
1 health-based violation 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 83% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
1,799
Population
17
Water Systems
29
Violations (5yr)
1
Health-Based
Location
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Water Systems Serving This Area (17)
Madison Water Utility
1 health-basedBlue Mounds Waterworks
All resolvedWi Dnr Blue Mound Upper Well
Wi Dnr Blue Mound Aquatic Center
Wi Dnr Blue Mound Fobm Shelter
Wi Dnr Blue Mound Lower Well
Eagle Mart
Cave Of The Mounds Visitor Center
Dairyfood Usa Inc
All resolvedGerber Leasing
Little Norway - Spring
Midwestern Bio Ag
West Blue Mounds Luth Church
Prototek Digital Manufacturing (Madison) Llc
Cave Of The Mound
Stauffer Classics Ltd
Little Norway - Well
Contaminants Found
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Missed testing deadlines — not a detection of bacteria.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jun 2025
Copper (Cu)
Exceeds limitSampled: Jun 2022
How Does This Compare?
Madison (53517) has more violations than 83% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 29.
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.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 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.