A82/100
ST JOSEPH — Water Quality Report 2026
Serving 7,930 people · Michigan
Water Source
Surface Water
County
—
System ID
MI0006310
Violations
7
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 2008.
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 ST JOSEPH
Is ST JOSEPH water safe to drink?
ST JOSEPH water receives a grade of A (82/100), which is considered excellent. Out of 51 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has ST JOSEPH detected?
51 contaminants were tested in ST JOSEPH's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does ST JOSEPH have any EPA violations?
Yes, ST JOSEPH has 7 EPA violation(s) on record, with the most recent in 2008. Violation types include TT, MR, Other. 2 are health-based violations.
How many people does ST JOSEPH serve?
ST JOSEPH serves approximately 7,930 people, Michigan. The system provides water to 1 community: St Joseph.
What type of water does ST JOSEPH provide?
ST JOSEPH sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is MI0006310.
How does ST JOSEPH compare to other utilities in Michigan?
ST JOSEPH scores 82/100 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.