A95/100
IL AMERICAN-GRANITE CITY — Water Quality Report 2026
Serving 27,549 people · Illinois
Water Source
Surface Water
County
—
System ID
IL1195030
Violations
2
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.005 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2016.
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 IL AMERICAN-GRANITE CITY
Is IL AMERICAN-GRANITE CITY water safe to drink?
IL AMERICAN-GRANITE CITY water receives a grade of A (95/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has IL AMERICAN-GRANITE CITY detected?
69 contaminants were tested in IL AMERICAN-GRANITE CITY's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does IL AMERICAN-GRANITE CITY have any EPA violations?
Yes, IL AMERICAN-GRANITE CITY has 2 EPA violation(s) on record, with the most recent in 2016. Violation types include Other, MR.
How many people does IL AMERICAN-GRANITE CITY serve?
IL AMERICAN-GRANITE CITY serves approximately 27,549 people, Illinois. The system provides water to 1 community: Granite City.
What type of water does IL AMERICAN-GRANITE CITY provide?
IL AMERICAN-GRANITE CITY sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is IL1195030.
How does IL AMERICAN-GRANITE CITY compare to other utilities in Illinois?
IL AMERICAN-GRANITE CITY scores 95/100 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.