WaterQ
Michigan State Report All States
Official Status: March 2026

Is Ann Arbor tap water safe to drink?

✓ Generally Safe
A

Mostly yes — Ann Arbor scores 90/100.

Safety Score
90
out of 100

Still not sure if you need a filter in Ann Arbor?

Read Decision Guide →

Ann Arbor

Michigan

View Michigan state report Verified: Apr 2026

Is Ann Arbor tap water safe to drink?

Mostly yes — Ann Arbor scores 90/100. This report aggregates EPA drinking water data across 1 local system in Ann Arbor. We found 4 total violations (0 unresolved).

Real-Time Environment

Live: 02:45 PM
0mm Precipitation

☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Ann Arbor.

Water Quality Impact

✅ Minimal Impact Localized weather conditions may influence test result variability.

🛡️ Home Water Treatment Needs

Should you invest in filtration or softening for your home in Ann Arbor?

Requirement Status
Optional
🟢
💡

Expert Advice

Your water quality is excellent. Standard filtration is optional but can further enhance taste.

Buying a Filter?

Should you buy a water purifier in Ann Arbor? See our analysis.

Baby Formula Safety

Is Ann Arbor tap water safe for infants? Critical safety guide.

Homebuyer's Perspective

For those looking to relocate to Ann Arbor, water quality is a key factor in long-term property maintenance. The high safety score (90/100) suggests lower risk for plumbing corrosion and appliance scaling.

Property Impact: Positive / Stable

Health & Family Safety

Residents should monitor PFAS (Per- and Polyfluoroalkyl Substances) levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.

View Health Risk Glossary →

Score Breakdown for Ann Arbor

EPA Compliance & Violations 85/100
Contaminant Safety Margin 90%

*Scores are calculated using weighted EPA monitoring data from the past 5 years.

Frequently Asked Questions

Is Ann Arbor tap water safe to drink?

Mostly yes — Ann Arbor scores 90/100.

How many water systems serve Ann Arbor?

Ann Arbor is served by 1 public water system in our latest EPA-backed dataset.

How can I check water quality for my exact address in Ann Arbor?

Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Ann Arbor.

What is the water quality score for Ann Arbor?

The water quality score for Ann Arbor is N/A out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.

What are the top contaminants in Ann Arbor?

The top contaminants detected in Ann Arbor include PFAS (Per- and Polyfluoroalkyl Substances), Total Trihalomethanes, Copper. View detailed information on our contaminants page.

Water Quality Score
90/100
Grade
A
Water Systems
5
Population
277,712

Ann Arbor Water Quality Summary

Ann Arbor, MI receives a water quality score of 90/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 5 public water systems serving the area.

Ann Arbor's water quality is above the national average, with strong compliance records and low contaminant levels. Residents generally receive clean, safe tap water that meets EPA standards.

Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology →

Key Contaminants

PFAS (Per- and Polyfluoroalkyl Substances) Violation
0.0076 / 0.004 μg/L
0 μg/L MCL: 0.004 μg/L
Total Trihalomethanes Violation
139.7001 / 80 μg/L
0 μg/L MCL: 80 μg/L
Copper
1.2518 / 1.3 mg/L
0 mg/L MCL: 1.3 mg/L
Turbidity
0.6064 / 1 NTU
0 NTU MCL: 1 NTU
Lead
5.9683 / 15 μg/L
0 μg/L MCL: 15 μg/L
Perchlorate
18.3014 / 56 μg/L
0 μg/L MCL: 56 μg/L
PFOA (Perfluorooctanoic Acid)
0.0013 / 0.004 μg/L
0 μg/L MCL: 0.004 μg/L
Fluoride
1.2753 / 4 mg/L
0 mg/L MCL: 4 mg/L

Water Systems Serving Ann Arbor (1)

Related

Compare Ann Arbor water quality: View all states · Contaminant library · How we score water quality