A89/100
BROOKFIELD — Water Quality Report 2026
Serving 18,776 people · Illinois
Water Source
Purchased Surface Water
County
—
System ID
IL0310330
Violations
8
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.007 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2017.
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 BROOKFIELD
Is BROOKFIELD water safe to drink?
BROOKFIELD water receives a grade of A (89/100), 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 BROOKFIELD detected?
69 contaminants were tested in BROOKFIELD's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does BROOKFIELD have any EPA violations?
Yes, BROOKFIELD has 8 EPA violation(s) on record, with the most recent in 2017. Violation types include Other, MR.
How many people does BROOKFIELD serve?
BROOKFIELD serves approximately 18,776 people, Illinois. The system provides water to 1 community: Brookfield.
What type of water does BROOKFIELD provide?
BROOKFIELD 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 IL0310330.
How does BROOKFIELD compare to other utilities in Illinois?
BROOKFIELD scores 89/100 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.