A98/100
NORTHFIELD ESTATES — Water Quality Report 2026
Serving 1,620 people · Illinois
Water Source
Groundwater
County
—
System ID
MI0040594
Violations
2
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2019.
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 NORTHFIELD ESTATES
Is NORTHFIELD ESTATES water safe to drink?
NORTHFIELD ESTATES water receives a grade of A (98/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has NORTHFIELD ESTATES detected?
1 contaminants were tested in NORTHFIELD ESTATES's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does NORTHFIELD ESTATES have any EPA violations?
Yes, NORTHFIELD ESTATES has 2 EPA violation(s) on record, with the most recent in 2019. Violation types include MR.
How many people does NORTHFIELD ESTATES serve?
NORTHFIELD ESTATES serves approximately 1,620 people, Illinois.
What type of water does NORTHFIELD ESTATES provide?
NORTHFIELD ESTATES sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MI0040594.
How does NORTHFIELD ESTATES compare to other utilities in Illinois?
NORTHFIELD ESTATES scores 98/100 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.