A81/100
HAZEL CREST — Water Quality Report 2026
Serving 13,098 people · Illinois
Water Source
Purchased Surface Water
County
—
System ID
IL0311170
Violations
8
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.013 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Surface water treatment technique failure
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2024 – September 30, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
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 HAZEL CREST
Is HAZEL CREST water safe to drink?
HAZEL CREST water receives a grade of A (81/100), 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 HAZEL CREST detected?
69 contaminants were tested in HAZEL CREST's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does HAZEL CREST have any EPA violations?
Yes, HAZEL CREST has 8 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR, TT. 2 are health-based violations.
How many people does HAZEL CREST serve?
HAZEL CREST serves approximately 13,098 people, Illinois. The system provides water to 1 community: Hazel Crest.
What type of water does HAZEL CREST provide?
HAZEL CREST 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 IL0311170.
How does HAZEL CREST compare to other utilities in Illinois?
HAZEL CREST scores 81/100 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.