A94/100
WARREN, CITY OF — Water Quality Report 2026
Serving 134,056 people · Michigan
Water Source
Purchased Surface Water
County
—
System ID
MI0006900
Violations
3
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2020.
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 WARREN, CITY OF
Is WARREN, CITY OF water safe to drink?
WARREN, CITY OF water receives a grade of A (94/100), which is considered excellent. Out of 76 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has WARREN, CITY OF detected?
76 contaminants were tested in WARREN, CITY OF's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does WARREN, CITY OF have any EPA violations?
Yes, WARREN, CITY OF has 3 EPA violation(s) on record, with the most recent in 2020. Violation types include MR, Other.
How many people does WARREN, CITY OF serve?
WARREN, CITY OF serves approximately 134,056 people, Michigan. The system provides water to 1 community: Warren.
What type of water does WARREN, CITY OF provide?
WARREN, CITY OF 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 MI0006900.
How does WARREN, CITY OF compare to other utilities in Michigan?
WARREN, CITY OF scores 94/100 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.