A91/100
COUNTRYSIDE — Water Quality Report 2026
Serving 6,420 people · Illinois
Water Source
Purchased Surface Water
County
—
System ID
IL0310570
Violations
6
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
2
Unresolved
0
Health-Related
TIER 3Unresolved
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.
TIER 3Unresolved
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.
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 COUNTRYSIDE
Is COUNTRYSIDE water safe to drink?
COUNTRYSIDE water receives a grade of A (91/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has COUNTRYSIDE detected?
31 contaminants were tested in COUNTRYSIDE's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does COUNTRYSIDE have any EPA violations?
Yes, COUNTRYSIDE has 6 EPA violation(s) on record, with the most recent in 2025. Violation types include MR.
How many people does COUNTRYSIDE serve?
COUNTRYSIDE serves approximately 6,420 people, Illinois. The system provides water to 1 community: Countryside.
What type of water does COUNTRYSIDE provide?
COUNTRYSIDE 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 IL0310570.
How does COUNTRYSIDE compare to other utilities in Illinois?
COUNTRYSIDE scores 91/100 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.