A86/100
POPLAR GROVE — Water Quality Report 2026
Serving 2,372 people · Illinois
Water Source
Groundwater
County
—
System ID
IL0070150
Violations
14
Contaminant Test Results
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2024 – July 26, 2024Enforcement: 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 POPLAR GROVE
Is POPLAR GROVE water safe to drink?
POPLAR GROVE water receives a grade of A (86/100), which is considered excellent. Out of 21 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has POPLAR GROVE detected?
21 contaminants were tested in POPLAR GROVE's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does POPLAR GROVE have any EPA violations?
Yes, POPLAR GROVE has 14 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, MR.
How many people does POPLAR GROVE serve?
POPLAR GROVE serves approximately 2,372 people, Illinois. The system provides water to 1 community: Poplar Grove.
What type of water does POPLAR GROVE provide?
POPLAR GROVE sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IL0070150.
How does POPLAR GROVE compare to other utilities in Illinois?
POPLAR GROVE scores 86/100 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.