B63/100
WINNEBAGO — Water Quality Report 2026
Serving 3,000 people · Illinois
Water Source
Groundwater
County
—
System ID
IL2010500
Violations
26
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.005 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2002.
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 WINNEBAGO
Is WINNEBAGO water safe to drink?
WINNEBAGO water receives a grade of B (63/100), which is considered good. Out of 1 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has WINNEBAGO detected?
1 contaminants were tested in WINNEBAGO's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does WINNEBAGO have any EPA violations?
Yes, WINNEBAGO has 26 EPA violation(s) on record, with the most recent in 2002. Violation types include MR, MCL. 2 are health-based violations.
How many people does WINNEBAGO serve?
WINNEBAGO serves approximately 3,000 people, Illinois. The system provides water to 1 community: Winnebago.
What type of water does WINNEBAGO provide?
WINNEBAGO sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IL2010500.
How does WINNEBAGO compare to other utilities in Illinois?
WINNEBAGO scores 63/100 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.