C52/100
SCHILLER PARK — Water Quality Report 2026
Serving 11,709 people · Illinois
Water Source
Purchased Surface Water
County
—
System ID
IL0312850
Violations
17
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Surface water treatment technique failure
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 SCHILLER PARK
Is SCHILLER PARK water safe to drink?
SCHILLER PARK water receives a grade of C (52/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 17 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has SCHILLER PARK detected?
69 contaminants were tested in SCHILLER PARK's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does SCHILLER PARK have any EPA violations?
Yes, SCHILLER PARK has 17 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR, MCL. 7 are health-based violations.
How many people does SCHILLER PARK serve?
SCHILLER PARK serves approximately 11,709 people, Illinois. The system provides water to 1 community: Schiller Park.
What type of water does SCHILLER PARK provide?
SCHILLER PARK 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 IL0312850.
How does SCHILLER PARK compare to other utilities in Illinois?
SCHILLER PARK scores 52/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Illinois state page for a full comparison of water systems.