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PUBLIC WATER SYSTEM REPORT

Is MADISON WATER UTILITY Water Safe to Drink in 2026?

Wisconsin · PWSID WI1130224 · Ground water

Population served
272,000
Cities served
MADISON
State / jurisdiction
Wisconsin (WI)
PWSID
WI1130224
F
TAP WATER GRADE
High risk
Model score 20/88 from violations, PFAS profile, and monitoring signals — not a laboratory test of your faucet.
328 violation record(s) in the latest EPA SDWA quarterly snapshotPFAS compounds detected in UCMR5 monitoring

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CONTAMINANTS — EPA UCMR5 MONITORING
Compound
Level (ppt)
EPA limit
Health guideline
Status
PFBA
46.5
—
Within / n/a
Unregulated (monitored)
PFHxSregulated
7.3
10 ppt
Within / n/a
MCL exceedance

Source: EPA UCMR5 · ppt = parts per trillion · MCL = enforceable limit for regulated PFAS

VIOLATIONS HISTORY (FEDERAL SNAPSHOT)

EPA’s national SDWA quarterly files associate 328 violation-related records with this system in the same reporting quarter as the utility snapshot used on WaterCheckup. This is not a complete historical docket — see ECHO and SDWIS for full compliance context.

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WHAT TO DO ABOUT IT

Based on MADISON WATER UTILITY's monitoring and violation profile, here are vetted filtration options — same picks framework as our city reports.

TOP PICKS FOR MADISON WATER UTILITY
⚠ EPA violations / contaminants in monitoring data
#1
Waterdrop G3P800 RO
EDITORS PICK
Waterdrop  ·  ~$849
Tankless 800 GPD, removes 99%+ PFAS & lead, 10-stage filtration. Smart faucet TDS display.
WHY THIS FOR MADISON WATER UTILITY · Chosen for MADISON WATER UTILITY because the latest federal SDWA snapshot lists substantial violation activity. Certified reverse osmosis provides the broadest residential barrier for households that want margin beyond legal compliance.
#2
Aquasana SmartFlow RO
MOST CERTIFIED
Aquasana  ·  ~$449
WQA Gold Seal + NSF 42/53/58/401. Most certifications of any under-sink RO. Removes 90+ contaminants.
#3
AquaTru Under-Sink RO
EASIEST FILTER CHANGE
AquaTru  ·  ~$375
NSF 42/53/58 certified. Quick-change filters, no tools. Compact tankless design, 4-stage filtration.
Not sure which filter is right for you? Take the 3-question quiz →
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STAY INFORMED
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We'll notify you when new PFAS data, EPA violations, or contamination alerts affect MADISON WATER UTILITY (PWS WI1130224). One email, no spam, unsubscribe any time.

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