A94/100
REND LAKE INTER-CITY WATER SYSTEM — Water Quality Report 2026
Serving 3,650 people · Illinois
Water Source
Surface Water
County
—
System ID
IL0555100
Violations
6
Contaminant Test Results
EPA Violation History
3
Violations (last 5yr)
0
Unresolved
0
Health-Related
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: August 1, 2025 – August 31, 2025Rule: Stage 1 DBPREnforcement: 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 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – December 21, 2023Enforcement: 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 REND LAKE INTER-CITY WATER SYSTEM
Is REND LAKE INTER-CITY WATER SYSTEM water safe to drink?
REND LAKE INTER-CITY WATER SYSTEM water receives a grade of A (94/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has REND LAKE INTER-CITY WATER SYSTEM detected?
1 contaminants were tested in REND LAKE INTER-CITY WATER SYSTEM's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does REND LAKE INTER-CITY WATER SYSTEM have any EPA violations?
Yes, REND LAKE INTER-CITY WATER SYSTEM has 6 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other.
How many people does REND LAKE INTER-CITY WATER SYSTEM serve?
REND LAKE INTER-CITY WATER SYSTEM serves approximately 3,650 people, Illinois.
What type of water does REND LAKE INTER-CITY WATER SYSTEM provide?
REND LAKE INTER-CITY WATER SYSTEM sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is IL0555100.
How does REND LAKE INTER-CITY WATER SYSTEM compare to other utilities in Illinois?
REND LAKE INTER-CITY WATER SYSTEM scores 94/100 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.