Water Quality in El Dorado, AR: 8 Violations — Grade A
Grade A · Score 88/100 · 5 water systems · Updated 2026-05-03
El Dorado's water meets all EPA standards with no health-based violations.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
Water systems in El Dorado, AR have accumulated 8 EPA violations across the full compliance record — a dataset that captures reportable health-based exceedances, monitoring lapses, and enforcement actions filed with the federal Safe Drinking Water Information System.
Water Quality by ZIP Code in El Dorado
Water quality varies across El Dorado's 2 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 71730 | B | 83 | 4 | 2 | View report → |
| 71731 | A | 93 | 4 | 2 | View report → |
Violation Trend
EPA violations recorded for water systems serving El Dorado.
Water Quality Overview
El Dorado, Arkansas receives a water quality grade of A with an overall score of 88 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 5 water systems serving El Dorado have accumulated 8 EPA violations, including 4 health-based violations. These violations are tracked across 2 ZIP codes serving approximately 24,202 people.
What Grade A Means
A grade of A indicates excellent compliance with EPA drinking water standards. El Dorado's water systems have maintained strong performance in both contaminant monitoring and regulatory compliance.
Lead Levels
The average 90th percentile lead level across El Dorado water systems is 0.0020 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 67% of homes built before 1986, El Dorado has a higher-than-average risk of lead from older plumbing. Lead solder was banned in 1986, and homes built before this date may have lead in pipes, solder joints, or fixtures.
Water Systems Serving El Dorado
El Dorado is served by 5 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 24,202 people across 2 ZIP codes.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
The EPA has taken 20 enforcement actions against water systems serving El Dorado. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in El Dorado
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts
Contaminants Detected in El Dorado Water Systems
The following contaminants have been detected or caused violations across El Dorado's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Uranium | Radionuclides | 0.03 mg/L | 2 | 2 | Yes |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 0.06 mg/L | 2 | 2 | Yes |
MCL = Maximum Contaminant Level (EPA enforceable standard). Health-based violations indicate levels that may pose direct health risks.
Violation Trend Over Time
Year-by-year EPA violations recorded for water systems serving El Dorado:
| Year | Total Violations | Health-Based |
|---|---|---|
| 2021 | 2 | 2 |
| 2022 | 2 | 2 |
Violation counts have remained stable over the observed period.
EPA Enforcement History
The EPA and state regulators have taken 10 enforcement actions against water systems serving El Dorado. Recent actions:
| Date | Action Type |
|---|---|
| 2024-03-06 | State Order Extension |
| 2023-12-11 | State Informal Action |
| 2023-09-12 | State Informal Action |
| 2023-09-12 | State Order Extension |
| 2023-08-08 | State Order Extension |
| 2023-03-06 | State Order Extension |
| 2022-12-21 | State Filed Motion |
| 2022-09-19 | State Order Extension |
| 2022-08-12 | State Filed Motion |
| 2022-05-10 | State Order Extension |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2024-03-06.
El Dorado vs. Nearby Arkansas Cities
How El Dorado's water quality compares to similar cities in Arkansas:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| El Dorado | A | 8 | 5 | 24,202 |
| West Memphis | A | 0 | 1 | 24,419 |
| Heber Springs | A | 4 | 3 | 23,936 |
| El Paso | B | 0 | 1 | 24,690 |
Common Questions About El Dorado Water
These are the most common questions residents search for about water quality in El Dorado, Arkansas:
Is El Dorado water hard or soft? Water hardness varies by source. El Dorado's 5 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink El Dorado tap water? El Dorado's water receives a grade of A (88/100). There are 4 health-based violations — consider filtration.
What is the best water filter for El Dorado? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
El Dorado vs. Arkansas Average
Understanding how El Dorado compares to the broader Arkansas average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within El Dorado.
ZIP Codes in El Dorado
El Dorado spans 2 ZIP codes. The ZIP with the lowest water quality score is 71730. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Updated daily.
Frequently Asked Questions
Your Water is Safe — Here's How to Keep It That Way
Grade A is excellent news. Here's what proactive homeowners do to maintain water quality:
Annual Water Testing
EPA recommends annual testing even with clean water. Home test kits: $20-$50. Catches changes before they become problems.
Maintenance Filtration
A basic carbon filter removes chlorine taste and catches emerging contaminants like PFAS that aren't yet fully regulated.
Plumbing Check
Even safe city water picks up lead from home pipes. If your home was built before 1986, a one-time pipe inspection is recommended.