A96/100
DEARBORN — Water Quality Report 2026
Serving 109,976 people · Michigan
Water Source
Purchased Surface Water
County
—
System ID
MI0001730
Violations
1
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.006 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2000.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About DEARBORN
Is DEARBORN water safe to drink?
DEARBORN water receives a grade of A (96/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has DEARBORN detected?
69 contaminants were tested in DEARBORN's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does DEARBORN have any EPA violations?
Yes, DEARBORN has 1 EPA violation(s) on record, with the most recent in 2000. Violation types include Other.
How many people does DEARBORN serve?
DEARBORN serves approximately 109,976 people, Michigan. The system provides water to 1 community: Dearborn.
What type of water does DEARBORN provide?
DEARBORN sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is MI0001730.
How does DEARBORN compare to other utilities in Michigan?
DEARBORN scores 96/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Michigan state page for a full comparison of water systems.