C59/100
HIGHLAND — Water Quality Report 2026
Serving 10,649 people · Illinois
Water Source
Surface Water
County
—
System ID
IL1190550
Violations
14
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
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 HIGHLAND
Is HIGHLAND water safe to drink?
HIGHLAND water receives a grade of C (59/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 14 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has HIGHLAND detected?
31 contaminants were tested in HIGHLAND's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does HIGHLAND have any EPA violations?
Yes, HIGHLAND has 14 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other, MCL. 6 are health-based violations.
How many people does HIGHLAND serve?
HIGHLAND serves approximately 10,649 people, Illinois. The system provides water to 1 community: Highland.
What type of water does HIGHLAND provide?
HIGHLAND 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 IL1190550.
How does HIGHLAND compare to other utilities in Illinois?
HIGHLAND scores 59/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Illinois state page for a full comparison of water systems.