C41/100
AQUA ILLINOIS-NORTH MAINE UTILITIES — Water Quality Report 2026
Serving 30,043 people · Illinois
Water Source
Purchased Surface Water
County
—
System ID
IL0315350
Violations
23
Contaminant Test Results
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 AQUA ILLINOIS-NORTH MAINE UTILITIES
Is AQUA ILLINOIS-NORTH MAINE UTILITIES water safe to drink?
AQUA ILLINOIS-NORTH MAINE UTILITIES water receives a grade of C (41/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 23 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has AQUA ILLINOIS-NORTH MAINE UTILITIES detected?
69 contaminants were tested in AQUA ILLINOIS-NORTH MAINE UTILITIES's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does AQUA ILLINOIS-NORTH MAINE UTILITIES have any EPA violations?
Yes, AQUA ILLINOIS-NORTH MAINE UTILITIES has 23 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other, MCL. 9 are health-based violations.
How many people does AQUA ILLINOIS-NORTH MAINE UTILITIES serve?
AQUA ILLINOIS-NORTH MAINE UTILITIES serves approximately 30,043 people, Illinois.
What type of water does AQUA ILLINOIS-NORTH MAINE UTILITIES provide?
AQUA ILLINOIS-NORTH MAINE UTILITIES 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 IL0315350.
How does AQUA ILLINOIS-NORTH MAINE UTILITIES compare to other utilities in Illinois?
AQUA ILLINOIS-NORTH MAINE UTILITIES scores 41/100 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.