C47/100
CUBA — Water Quality Report 2026
Serving 1,184 people · Illinois
Water Source
GUP
County
—
System ID
IL0570300
Violations
33
Contaminant Test Results
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: May 1, 2024 – May 31, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
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: April 1, 2024 – June 24, 2024Rule: Stage 1 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 CUBA
Is CUBA water safe to drink?
CUBA water receives a grade of C (47/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 33 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has CUBA detected?
1 contaminants were tested in CUBA's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does CUBA have any EPA violations?
Yes, CUBA has 33 EPA violation(s) on record, with the most recent in 2024. Violation types include MON, MR, MCL. 5 are health-based violations.
How many people does CUBA serve?
CUBA serves approximately 1,184 people, Illinois. The system provides water to 1 community: Cuba.
What type of water does CUBA provide?
CUBA sources its water from gup. The utility's system ID is IL0570300.
How does CUBA compare to other utilities in Illinois?
CUBA scores 47/100 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.