A81/100
JACKSONVILLE — Water Quality Report 2026
Serving 19,903 people · Illinois
Water Source
Surface Water
County
—
System ID
IL1370200
Violations
15
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2011.
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 JACKSONVILLE
Is JACKSONVILLE water safe to drink?
JACKSONVILLE water receives a grade of A (81/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has JACKSONVILLE detected?
69 contaminants were tested in JACKSONVILLE's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does JACKSONVILLE have any EPA violations?
Yes, JACKSONVILLE has 15 EPA violation(s) on record, with the most recent in 2011. Violation types include Other, MR, MCL. 1 are health-based violations.
How many people does JACKSONVILLE serve?
JACKSONVILLE serves approximately 19,903 people, Illinois. The system provides water to 1 community: Jacksonville.
What type of water does JACKSONVILLE provide?
JACKSONVILLE 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 IL1370200.
How does JACKSONVILLE compare to other utilities in Illinois?
JACKSONVILLE 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.