Tap Water Quality in Madison, WI
Find out what's in your drinking water. Enter your ZIP code below for a detailed water quality report for Madison, Wisconsin.
Try 53703 for Madison
Madison Drinking Water Overview
Population: ~270,000 | Source: Deep groundwater wells
Madison relies entirely on deep groundwater wells, drawing from the Mount Simon and Wonewoc sandstone aquifers. Naturally occurring radium has been a persistent challenge, requiring blending and treatment. PFAS contamination from Truax Field, home to the Wisconsin Air National Guard, has been detected in some east-side wells.
Common water quality concerns in Madison
PFAS near Truax Field
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Naturally occurring radium
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Nitrates from agriculture
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Manganese
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What's in your Madison water report
Contaminant levels
Every detected contaminant in your Madison water system, compared to EPA limits and health guidelines.
Violation history
All EPA violations on record for water systems serving Madison, including health-based and monitoring violations.
Water quality grade
An A through F grade based on violation history, contaminant levels, and health guideline comparisons.
Filter recommendations
Which type of water filter will actually remove the contaminants found in your specific water system.
Water quality in nearby cities
Check your Madison water now
Enter your ZIP code for a free water quality report specific to your water system in Madison, Wisconsin.