A93/100
BUNKER HILL — Water Quality Report 2026
Serving 1,760 people · Illinois
Water Source
Purchased Surface Water
County
—
System ID
IL1170100
Violations
4
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
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: October 1, 2024 – December 31, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2021 – September 24, 2021Enforcement: 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 BUNKER HILL
Is BUNKER HILL water safe to drink?
BUNKER HILL water receives a grade of A (93/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has BUNKER HILL detected?
1 contaminants were tested in BUNKER HILL's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does BUNKER HILL have any EPA violations?
Yes, BUNKER HILL has 4 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, Other.
How many people does BUNKER HILL serve?
BUNKER HILL serves approximately 1,760 people, Illinois. The system provides water to 1 community: Bunker Hill.
What type of water does BUNKER HILL provide?
BUNKER HILL 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 IL1170100.
How does BUNKER HILL compare to other utilities in Illinois?
BUNKER HILL scores 93/100 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.