A83/100
MINIER — Water Quality Report 2026
Serving 1,180 people · Illinois
Water Source
Groundwater
County
—
System ID
IL1790450
Violations
5
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.40 mg/L | 1.30 mg/L | Over Limit |
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 MINIER
Is MINIER water safe to drink?
MINIER water receives a grade of A (83/100), which is considered excellent. Out of 2 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has MINIER detected?
2 contaminants were tested in MINIER's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does MINIER have any EPA violations?
Yes, MINIER has 5 EPA violation(s) on record, with the most recent in 2011. Violation types include MCL, MR. 1 are health-based violations.
How many people does MINIER serve?
MINIER serves approximately 1,180 people, Illinois. The system provides water to 1 community: Minier.
What type of water does MINIER provide?
MINIER sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IL1790450.
How does MINIER compare to other utilities in Illinois?
MINIER scores 83/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Illinois state page for a full comparison of water systems.