Water Quality in Del Rio, TX: 24 Violations — Grade A
Grade A · Score 88/100 · 5 water systems · Updated 2026-05-03
Del Rio's water meets all EPA standards with no health-based violations.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
The compliance history for Del Rio, TX includes 24 water violations on file with the EPA — a federal tally that spans health-based exceedances, monitoring failures, and enforcement actions logged under the Safe Drinking Water Act.
Water Quality by ZIP Code in Del Rio
Water quality varies across Del Rio's 4 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 78840 | B | 79 | 6 | 0 | View report → |
| 78841 | A | 89 | 6 | 0 | View report → |
| 78842 | A | 89 | 6 | 0 | View report → |
| 78847 | A | 93 | 6 | 0 | View report → |
Violation Trend
EPA violations recorded for water systems serving Del Rio.
Water Quality Overview
Del Rio, Texas 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 Del Rio have accumulated 24 EPA violations (all monitoring/reporting type). These violations are tracked across 4 ZIP codes serving approximately 37,985 people.
What Grade A Means
A grade of A indicates excellent compliance with EPA drinking water standards. Del Rio's water systems have maintained strong performance in both contaminant monitoring and regulatory compliance.
Lead Levels
The average 90th percentile lead level across Del Rio water systems is 0.0017 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
With 77% of homes built before 1986, Del Rio 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 Del Rio
Del Rio is served by 5 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 37,985 people across 4 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 40 enforcement actions against water systems serving Del Rio. Enforcement actions range from informal compliance assistance to formal orders and penalties.
How to Check Your Water in Del Rio
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 Del Rio Water Systems
The following contaminants have been detected or caused violations across Del Rio's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | N/A | 12 | 4 | No |
| Surface Water Treatment Rule | Treatment Technique | N/A | 8 | 4 | No |
| Fecal Coliform | Microbiological | N/A | 4 | 4 | No |
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 Del Rio:
| Year | Total Violations | Health-Based |
|---|---|---|
| 2021 | 12 | 12 |
| 2022 | 16 | 16 |
| 2023 | 12 | 12 |
| 2024 | 16 | 16 |
| 2025 | 4 | 4 |
Violations have decreased from 12 in 2021 to 4 in 2025, indicating improving compliance.
EPA Enforcement History
The EPA and state regulators have taken 10 enforcement actions against water systems serving Del Rio. Recent actions:
| Date | Action Type |
|---|---|
| 2025-07-21 | State Order Extension |
| 2025-07-17 | State Informal Action |
| 2025-07-17 | State Informal Enforcement |
| 2025-07-17 | State Order Extension |
| 2025-07-14 | State Informal Action |
| 2025-07-10 | State Informal Enforcement |
| 2025-06-16 | State Informal Action |
| 2025-05-15 | State Formal Action |
| 2025-05-15 | State Informal Action |
| 2025-05-15 | State Informal Enforcement |
Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2025-07-21.
Del Rio vs. Nearby Texas Cities
How Del Rio's water quality compares to similar cities in Texas:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Del Rio | A | 24 | 5 | 37,985 |
| Copperas Cove | A | 1 | 2 | 38,188 |
| Cleburne | B | 30 | 4 | 37,639 |
| Belton | B | 4 | 4 | 38,333 |
Water Quality by ZIP Code in Del Rio
Water quality varies across Del Rio's ZIP codes. The table below shows the worst-scoring and best-scoring areas:
| ZIP Code | Score | Grade | Violations | Health-Based |
|---|---|---|---|---|
| 78840 | 79 | B | 6 | 0 |
| 78841 | 89 | A | 6 | 0 |
| 78842 | 89 | A | 6 | 0 |
| 78847 | 93 | A | 6 | 0 |
Common Questions About Del Rio Water
These are the most common questions residents search for about water quality in Del Rio, Texas:
Is Del Rio water hard or soft? Water hardness varies by source. Del Rio's 5 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink Del Rio tap water? Del Rio's water receives a grade of A (88/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for Del Rio? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Del Rio vs. Texas Average
Understanding how Del Rio compares to the broader Texas 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 Del Rio.
ZIP Codes in Del Rio
Del Rio spans 4 ZIP codes. The ZIP with the lowest water quality score is 78840. 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.