B66/100
ILLINOIS STATE UNIVERSITY-NORMAL — Water Quality Report 2026
Serving 6,600 people · Illinois
Water Source
Purchased Groundwater
County
—
System ID
IL1135510
Violations
26
Contaminant Test Results
EPA Violation History
4
Violations (last 5yr)
1
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: November 1, 2023 – November 30, 2023Rule: 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: October 1, 2023 – December 31, 2023Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – July 3, 2024Enforcement: Resolving — corrective action underway
TIER 3Unresolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: December 30, 2022Rule: 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 ILLINOIS STATE UNIVERSITY-NORMAL
Is ILLINOIS STATE UNIVERSITY-NORMAL water safe to drink?
ILLINOIS STATE UNIVERSITY-NORMAL water receives a grade of B (66/100), which is considered good. Out of 31 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has ILLINOIS STATE UNIVERSITY-NORMAL detected?
31 contaminants were tested in ILLINOIS STATE UNIVERSITY-NORMAL's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does ILLINOIS STATE UNIVERSITY-NORMAL have any EPA violations?
Yes, ILLINOIS STATE UNIVERSITY-NORMAL has 26 EPA violation(s) on record, with the most recent in 2023. Violation types include MON, MR, Other. 2 are health-based violations.
How many people does ILLINOIS STATE UNIVERSITY-NORMAL serve?
ILLINOIS STATE UNIVERSITY-NORMAL serves approximately 6,600 people, Illinois. The system provides water to 1 community: Normal.
What type of water does ILLINOIS STATE UNIVERSITY-NORMAL provide?
ILLINOIS STATE UNIVERSITY-NORMAL sources its water from purchased groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IL1135510.
How does ILLINOIS STATE UNIVERSITY-NORMAL compare to other utilities in Illinois?
ILLINOIS STATE UNIVERSITY-NORMAL scores 66/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Illinois state page for a full comparison of water systems.