B79/100
DALLAS RURAL WATER DISTRICT — Water Quality Report 2026
Serving 6,370 people · Illinois
Water Source
Groundwater
County
—
System ID
IL0710010
Violations
9
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.50 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2024 – December 31, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – January 3, 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 DALLAS RURAL WATER DISTRICT
Is DALLAS RURAL WATER DISTRICT water safe to drink?
DALLAS RURAL WATER DISTRICT water receives a grade of B (79/100), which is considered good. Out of 52 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has DALLAS RURAL WATER DISTRICT detected?
52 contaminants were tested in DALLAS RURAL WATER DISTRICT's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does DALLAS RURAL WATER DISTRICT have any EPA violations?
Yes, DALLAS RURAL WATER DISTRICT has 9 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, Other, TT. 1 are health-based violations.
How many people does DALLAS RURAL WATER DISTRICT serve?
DALLAS RURAL WATER DISTRICT serves approximately 6,370 people, Illinois. The system provides water to 1 community: Dallas City.
What type of water does DALLAS RURAL WATER DISTRICT provide?
DALLAS RURAL WATER DISTRICT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is IL0710010.
How does DALLAS RURAL WATER DISTRICT compare to other utilities in Illinois?
DALLAS RURAL WATER DISTRICT scores 79/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Illinois state page for a full comparison of water systems.