A93/100
ANN ARBOR TOWNSHIP — Water Quality Report 2026
Serving 1,338 people · Michigan
Water Source
Purchased Surface Water
County
—
System ID
MI0000221
Violations
4
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2016.
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 ANN ARBOR TOWNSHIP
Is ANN ARBOR TOWNSHIP water safe to drink?
ANN ARBOR TOWNSHIP water receives a grade of A (93/100), which is considered excellent. Out of 4 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has ANN ARBOR TOWNSHIP detected?
4 contaminants were tested in ANN ARBOR TOWNSHIP's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does ANN ARBOR TOWNSHIP have any EPA violations?
Yes, ANN ARBOR TOWNSHIP has 4 EPA violation(s) on record, with the most recent in 2016. Violation types include MR, Other.
How many people does ANN ARBOR TOWNSHIP serve?
ANN ARBOR TOWNSHIP serves approximately 1,338 people, Michigan. The system provides water to 1 community: Ann Arbor.
What type of water does ANN ARBOR TOWNSHIP provide?
ANN ARBOR TOWNSHIP 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 MI0000221.
How does ANN ARBOR TOWNSHIP compare to other utilities in Michigan?
ANN ARBOR TOWNSHIP scores 93/100 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.