D36/100
ROCHELLE — Water Quality Report 2026
Serving 9,446 people · Illinois
Water Source
Groundwater
County
—
System ID
IL1410500
Violations
17
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
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, 2023 – May 31, 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: April 1, 2023 – June 20, 2023Rule: 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 ROCHELLE
Is ROCHELLE water safe to drink?
ROCHELLE water receives a grade of D (36/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 17 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has ROCHELLE detected?
51 contaminants were tested in ROCHELLE's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does ROCHELLE have any EPA violations?
Yes, ROCHELLE has 17 EPA violation(s) on record, with the most recent in 2023. Violation types include MON, MR, MCL. 11 are health-based violations.
How many people does ROCHELLE serve?
ROCHELLE serves approximately 9,446 people, Illinois. The system provides water to 1 community: Rochelle.
What type of water does ROCHELLE provide?
ROCHELLE sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IL1410500.
How does ROCHELLE compare to other utilities in Illinois?
ROCHELLE scores 36/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Illinois state page for a full comparison of water systems.