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DEL RIO UTILITIES COMMISSION

PWS ID: TX2330001 · DEL RIO, Texas 78840-5502

DEL RIO UTILITIES COMMISSION serves 36,506 people in DEL RIO, Texas using Surface Water water sources. It has 115 recorded EPA violations, including 6 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: DEL RIO UTILITIES COMMISSION

DEL RIO UTILITIES COMMISSION is a local-owned community water system that delivers drinking water to 36,506 residents in DEL RIO, Texas (Val Verde County) through 20,234 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 115 total violations for this system , of which 6 (5%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 76 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Interim Enhanced Surface Water Treatment Rule, recorded in 16 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across Texas, EPA tracks 7,351 public water systems serving 33,253,313 people, with 746,210 cumulative violations and 162,945 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 101.5 violations. DEL RIO UTILITIES COMMISSION's 115 violations sit above the Texas average. Statewide, 1,068 of 1,147 UCMR5-tested systems have reported PFAS detections (93.1%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
36,506
Total Violations
115
Health-Based Violations
6
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
20,234
County
Val Verde
School/Daycare
No
MCL Violations
0
Monitoring Violations
76
Treatment Tech Violations
6

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Interim Enhanced Surface Water Treatment Rule MR 16 2021
Consumer Confidence Rule Other 15 2011
Coliform (TCR) MR 15 2009
Lead and Copper Rule MR 10 2017
Public Notice Other 8 2019
Interim Enhanced Surface Water Treatment Rule TT 6 2011
TTHM MR 5 2019
Total Haloacetic Acids (HAA5) MR 5 2019
Surface Water Treatment Rule MR 4 2019
1,2,4-Trichlorobenzene MR 1 2006
cis-1,2-Dichloroethylene MR 1 2006
Xylenes, Total MR 1 2006
DICHLOROMETHANE MR 1 2006
p-Dichlorobenzene MR 1 2006
Vinyl chloride MR 1 2006
1,1-Dichloroethylene MR 1 2006
1,2-Dichloropropane MR 1 2006
Trichloroethylene MR 1 2006
Tetrachloroethylene MR 1 2006
Benzene MR 1 2006
Toluene MR 1 2006
Ethylbenzene MR 1 2006
Styrene MR 1 2006
trans-1,2-Dichloroethylene MR 1 2006
1,1,1-Trichloroethane MR 1 2006
o-Dichlorobenzene MR 1 2006
1,1,2-Trichloroethane MR 1 2006
Carbon tetrachloride MR 1 2006
1,2-Dichloroethane MR 1 2006
CHLOROBENZENE MR 1 2006

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
lithium 7/14/2025 <9 µg/L 9 µg/L Not Detected
NMeFOSAA 7/14/2025 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 7/14/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 7/14/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFOA 7/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 7/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 7/14/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 7/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 7/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
6:2 FTS 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 7/14/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 7/14/2025 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 7/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 4/9/2025 <0.007 µg/L 0.007 µg/L Not Detected
lithium 4/9/2025 <9 µg/L 9 µg/L Not Detected
PFTA 4/9/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFBS 4/9/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 4/9/2025 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 4/9/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFHpA 4/9/2025 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 4/9/2025 <0.006 µg/L 0.006 µg/L Not Detected
11Cl-PF3OUdS 4/9/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 4/9/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 4/9/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 4/9/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 4/9/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 4/9/2025 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 4/9/2025 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 4/9/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 4/9/2025 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 4/9/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 4/9/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFOS 4/9/2025 <0.004 µg/L 0.004 µg/L Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for DEL RIO UTILITIES COMMISSION.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID TX2330001 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Texas Drinking Water Authority

Texas Commission on Environmental Quality (TCEQ) — Drinking Water Watch is the primacy agency that licenses and inspects DEL RIO UTILITIES COMMISSION under EPA-delegated authority.

Open TX regulator portal

Source: Texas Commission on Environmental Quality (TCEQ) — Drinking Water Watch

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2021 Interim Enhanced Surface Water Treatment Rule MR 16 SDWIS / TX2330001 / 0300
2019 Public Notice Other 8 SDWIS / TX2330001 / 7500
2019 TTHM MR 5 SDWIS / TX2330001 / 2950
2019 Total Haloacetic Acids (HAA5) MR 5 SDWIS / TX2330001 / 2456
2019 Surface Water Treatment Rule MR 4 SDWIS / TX2330001 / 0200
2017 Lead and Copper Rule MR 10 SDWIS / TX2330001 / 5000
2011 Consumer Confidence Rule Other 15 SDWIS / TX2330001 / 7000
2011 Interim Enhanced Surface Water Treatment Rule TT 6 SDWIS / TX2330001 / 0300
2009 Coliform (TCR) MR 15 SDWIS / TX2330001 / 3100
2006 1,2,4-Trichlorobenzene MR 1 SDWIS / TX2330001 / 2378
2006 cis-1,2-Dichloroethylene MR 1 SDWIS / TX2330001 / 2380
2006 Xylenes, Total MR 1 SDWIS / TX2330001 / 2955
2006 DICHLOROMETHANE MR 1 SDWIS / TX2330001 / 2964
2006 p-Dichlorobenzene MR 1 SDWIS / TX2330001 / 2969
2006 Vinyl chloride MR 1 SDWIS / TX2330001 / 2976

How DEL RIO UTILITIES COMMISSION Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric DEL RIO UTILITIES COMMISSION Texas avg Federal benchmark
Total violations 115 101.5 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 6 22.2 Indicates a contaminant exceeded a federal MCL
PFAS detection None 93.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 36,506 4,524 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,351 regulated public water systems in Texas.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is DEL RIO UTILITIES COMMISSION water safe to drink? ▼
DEL RIO UTILITIES COMMISSION (PWS ID: TX2330001) has 115 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 36,506 people using Surface Water sources.
How many people does DEL RIO UTILITIES COMMISSION serve? ▼
DEL RIO UTILITIES COMMISSION serves 36,506 people in DEL RIO, Texas. It is a Local-owned system using Surface Water water sources with 20,234 service connections.
What type of violations does DEL RIO UTILITIES COMMISSION have? ▼
DEL RIO UTILITIES COMMISSION has 115 total violations: 6 health-based violations (MCL exceedances or treatment failures), 76 monitoring/reporting violations, and 6 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in DEL RIO UTILITIES COMMISSION water? ▼
No. DEL RIO UTILITIES COMMISSION was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does DEL RIO UTILITIES COMMISSION use? ▼
DEL RIO UTILITIES COMMISSION uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial