A89/100
IONIA — Water Quality Report 2026
Serving 12,997 people · Michigan
Water Source
Groundwater
County
—
System ID
MI0003370
Violations
4
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 2011.
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 IONIA
Is IONIA water safe to drink?
IONIA water receives a grade of A (89/100), which is considered excellent. Out of 66 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has IONIA detected?
66 contaminants were tested in IONIA's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does IONIA have any EPA violations?
Yes, IONIA has 4 EPA violation(s) on record, with the most recent in 2011. Violation types include MR, MCL. 1 are health-based violations.
How many people does IONIA serve?
IONIA serves approximately 12,997 people, Michigan. The system provides water to 1 community: Ionia.
What type of water does IONIA provide?
IONIA sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MI0003370.
How does IONIA compare to other utilities in Michigan?
IONIA scores 89/100 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.