C46/100
EL DORADO WATERWORKS — Water Quality Report 2026
Serving 17,932 people · Arkansas
Water Source
Groundwater
County
—
System ID
AR0000550
Violations
11
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: November 1, 2022 – November 30, 2022Rule: Total Coliform RuleEnforcement: 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 EL DORADO WATERWORKS
Is EL DORADO WATERWORKS water safe to drink?
EL DORADO WATERWORKS water receives a grade of C (46/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 11 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has EL DORADO WATERWORKS detected?
66 contaminants were tested in EL DORADO WATERWORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does EL DORADO WATERWORKS have any EPA violations?
Yes, EL DORADO WATERWORKS has 11 EPA violation(s) on record, with the most recent in 2022. Violation types include MON, MCL. 10 are health-based violations.
How many people does EL DORADO WATERWORKS serve?
EL DORADO WATERWORKS serves approximately 17,932 people, Arkansas.
What type of water does EL DORADO WATERWORKS provide?
EL DORADO WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is AR0000550.
How does EL DORADO WATERWORKS compare to other utilities in Arkansas?
EL DORADO WATERWORKS scores 46/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Arkansas state page for a full comparison of water systems.