D24/100
SPRING VALLEY — Water Quality Report 2026
Serving 5,582 people · Illinois
Water Source
Groundwater
County
—
System ID
IL0111000
Violations
16
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2005.
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 SPRING VALLEY
Is SPRING VALLEY water safe to drink?
SPRING VALLEY water receives a grade of D (24/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 16 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has SPRING VALLEY detected?
31 contaminants were tested in SPRING VALLEY's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does SPRING VALLEY have any EPA violations?
Yes, SPRING VALLEY has 16 EPA violation(s) on record, with the most recent in 2005. Violation types include MCL, MR. 15 are health-based violations.
How many people does SPRING VALLEY serve?
SPRING VALLEY serves approximately 5,582 people, Illinois. The system provides water to 1 community: Spring Valley.
What type of water does SPRING VALLEY provide?
SPRING VALLEY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IL0111000.
How does SPRING VALLEY compare to other utilities in Illinois?
SPRING VALLEY scores 24/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Illinois state page for a full comparison of water systems.