C56/100
OTTER CREEK LAKE UTILITIES DISTRICT — Water Quality Report 2026
Serving 2,342 people · Illinois
Water Source
Groundwater
County
—
System ID
IL2015320
Violations
40
Contaminant Test Results
EPA Violation History
2
Violations (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 2, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2021 – December 31, 2021Enforcement: 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 OTTER CREEK LAKE UTILITIES DISTRICT
Is OTTER CREEK LAKE UTILITIES DISTRICT water safe to drink?
OTTER CREEK LAKE UTILITIES DISTRICT water receives a grade of C (56/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 40 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has OTTER CREEK LAKE UTILITIES DISTRICT detected?
1 contaminants were tested in OTTER CREEK LAKE UTILITIES DISTRICT's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does OTTER CREEK LAKE UTILITIES DISTRICT have any EPA violations?
Yes, OTTER CREEK LAKE UTILITIES DISTRICT has 40 EPA violation(s) on record, with the most recent in 2025. Violation types include RPT, MR, MCL. 1 are health-based violations.
How many people does OTTER CREEK LAKE UTILITIES DISTRICT serve?
OTTER CREEK LAKE UTILITIES DISTRICT serves approximately 2,342 people, Illinois. The system provides water to 1 community: Loves Park.
What type of water does OTTER CREEK LAKE UTILITIES DISTRICT provide?
OTTER CREEK LAKE UTILITIES DISTRICT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IL2015320.
How does OTTER CREEK LAKE UTILITIES DISTRICT compare to other utilities in Illinois?
OTTER CREEK LAKE UTILITIES DISTRICT scores 56/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Illinois state page for a full comparison of water systems.