F
25

Failing Water Quality

Del Rio, TX 78840

Val Verde County · Population served: 38,235 · Data updated March 2026

Water Systems Serving This Area

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DEL RIO UTILITIES COMMISSION
Surface water · Pop. 36,506
PWSID: TX2330001
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SAN PEDRO CANYON SUBDIVISION - UPPER
Groundwater · Pop. 150
PWSID: TX2330011
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TIERRA DEL LAGO
Groundwater · Pop. 81
PWSID: TX2330013
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DEVILS SHORES WSC
Groundwater · Pop. 97
PWSID: TX2330021
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HOLIDAY TRAV L PARK
Groundwater · Pop. 660
PWSID: TX2330022

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
24.0
15 ppb 1 ppb Exceeded

Violation History (Last 5 Years)

154Total (5yr)
44Health-Based
19Major

Water Quality Summary

Understanding Your Water in Del Rio

Tap water quality in Del Rio, Texas (78840) receives an overall grade of F (Failing) with a score of 25 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 44 points below the Texas state average of 68. Compared to the national average (75), this area scores significantly lower. The area is served by 8 water systems providing water to approximately 38,235 people, using surface water and groundwater sources. Testing has found elevated levels of Lead that warrant attention. Over the past 5 years, water systems here have accumulated 154 violations, including 44 health-based violations.

Your Score 25/100 F
vs State 44 pts below Texas avg (68)
vs National 50 pts below national avg (75)

What a Grade F Means

A score of 25/100 indicates serious water quality failures in Del Rio, TX. The water system has significant violations, contaminant exceedances, or enforcement actions. Residents should strongly consider using a certified water filtration system for drinking and cooking water, requesting their utility's latest test results, and potentially having their water independently tested.

Surface water: sourced from rivers, lakes, or reservoirs
Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

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Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Tap water in Del Rio, Texas receives a grade of F (Failing) with a score of 25/100. This indicates significant water quality concerns based on violation history, contaminant levels, or enforcement actions. We recommend reviewing the specific contaminants detected below and considering a certified water filter.

ZIP code 78840 is served by 8 water systems using surface water, groundwater sources, providing water to approximately 38,235 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Yes — lead levels in Del Rio, Texas are 24.0 ppb, which exceeds the EPA action level of 15 ppb. This is a serious concern. We strongly recommend using a certified lead-removal filter for all drinking and cooking water, and having your water independently tested.

No PFAS ("forever chemicals") were detected in water systems serving Del Rio, Texas during the most recent EPA monitoring period (UCMR5). However, not all water systems have been tested for all PFAS compounds, and new contamination can occur over time.

Water systems serving Del Rio, Texas have received 154 violations in the last 5 years, including 44 health-based violations. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Based on detected contaminants (lead), residents in Del Rio, Texas should consider: NSF/ANSI 53 certified filter — specifically rated for lead reduction. Pitcher filters (like Brita Longlast or PUR) and under-sink systems both work. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

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