A81/100
HIGHWOOD — Water Quality Report 2026
Serving 5,335 people · Illinois
Water Source
Surface Water
County
—
System ID
IL0970550
Violations
11
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.016 mg/L | 0.015 mg/L | Over Limit |
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
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 HIGHWOOD
Is HIGHWOOD water safe to drink?
HIGHWOOD water receives a grade of A (81/100), which is considered excellent. Out of 31 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has HIGHWOOD detected?
31 contaminants were tested in HIGHWOOD's water. Notable contaminants include Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does HIGHWOOD have any EPA violations?
Yes, HIGHWOOD has 11 EPA violation(s) on record, with the most recent in 2025. Violation types include MR.
How many people does HIGHWOOD serve?
HIGHWOOD serves approximately 5,335 people, Illinois. The system provides water to 1 community: Highwood.
What type of water does HIGHWOOD provide?
HIGHWOOD 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 IL0970550.
How does HIGHWOOD compare to other utilities in Illinois?
HIGHWOOD 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.