C52/100
Schiller Park Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 11,709 residents · Illinois
What's In Schiller Park's Tap Water?
69
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
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
Water Utility Details
SCHILLER PARK
Population Served
11,709
Water Source
Purchased Surface Water
System ID
IL0312850
Frequently Asked Questions About Schiller Park Water
Is Schiller Park tap water safe to drink?
Schiller Park, Illinois tap water receives a grade of C (52/100), which is considered fair. 0 contaminant(s) exceed EPA maximum contaminant levels and 17 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Schiller Park's water?
Of the 69 contaminants tested in Schiller Park's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Schiller Park have any water quality violations?
Yes, Schiller Park has 17 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR, MCL. 7 of these are health-based violations, which are the most serious category.
Do I need a water filter in Schiller Park?
Schiller Park water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.
Where does Schiller Park's tap water come from?
Schiller Park's drinking water is sourced from purchased surface water and supplied by SCHILLER PARK. The system serves approximately 11,709 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Schiller Park's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Schiller Park's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Schiller Park's water compare to other cities in Illinois?
Schiller Park's water quality score of 52/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Illinois state page to see how all cities in the state compare.
What should I do if I'm concerned about Schiller Park's water quality?
If you have concerns about Schiller Park's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (SCHILLER PARK) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.