F0/100
ROMEOVILLE — Water Quality Report 2026
Serving 50,458 people · Illinois
Water Source
Groundwater
County
—
System ID
IL1970900
Violations
55
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 2014.
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 ROMEOVILLE
Is ROMEOVILLE water safe to drink?
ROMEOVILLE water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 55 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has ROMEOVILLE detected?
66 contaminants were tested in ROMEOVILLE's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does ROMEOVILLE have any EPA violations?
Yes, ROMEOVILLE has 55 EPA violation(s) on record, with the most recent in 2014. Violation types include MR, Other, MCL. 17 are health-based violations.
How many people does ROMEOVILLE serve?
ROMEOVILLE serves approximately 50,458 people, Illinois. The system provides water to 1 community: Romeoville.
What type of water does ROMEOVILLE provide?
ROMEOVILLE sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IL1970900.
How does ROMEOVILLE compare to other utilities in Illinois?
ROMEOVILLE scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Illinois state page for a full comparison of water systems.