A85/100
MILL CREEK PWD — Water Quality Report 2026
Serving 5,755 people · Illinois
Water Source
Groundwater
County
—
System ID
IL0015300
Violations
4
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.81 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Failed to issue ongoing public notification
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 MILL CREEK PWD
Is MILL CREEK PWD water safe to drink?
MILL CREEK PWD water receives a grade of A (85/100), which is considered excellent. Out of 52 contaminants tested, 1 exceed EPA legal limits. 2 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has MILL CREEK PWD detected?
52 contaminants were tested in MILL CREEK PWD's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does MILL CREEK PWD have any EPA violations?
Yes, MILL CREEK PWD has 4 EPA violation(s) on record, with the most recent in 2025. Violation types include MR.
How many people does MILL CREEK PWD serve?
MILL CREEK PWD serves approximately 5,755 people, Illinois.
What type of water does MILL CREEK PWD provide?
MILL CREEK PWD sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IL0015300.
How does MILL CREEK PWD compare to other utilities in Illinois?
MILL CREEK PWD scores 85/100 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.