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States → Texas

DALLAS WATER UTILITY

PWS ID: TX0570004 · DALLAS, Texas 75201-6318

PFAS Detected

8 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
1,356,479
Total Violations
4
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
958,265
County
Dallas
School/Daycare
No
MCL Violations
0
Monitoring Violations
3
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 3 2007
Public Notice Other 1 2008

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 61 of 360 samples detected PFAS.

Contaminant Date Result MRL Status
PFEESA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/13/2023 0.0119 µg/L 0.005 µg/L Detected
6:2 FTS 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
ADONA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 9/13/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFTA 9/13/2023 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 9/13/2023 <0.006 µg/L 0.006 µg/L Not Detected
lithium 9/13/2023 <9 µg/L 9 µg/L Not Detected
PFPeA 9/13/2023 0.0074 µg/L 0.003 µg/L Detected
PFHxS 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/13/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFTrDA 9/13/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFHpA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 9/13/2023 0.0066 µg/L 0.003 µg/L Detected
PFUnA 9/13/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 9/13/2023 0.0052 µg/L 0.003 µg/L Detected
6:2 FTS 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/13/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/13/2023 0.0135 µg/L 0.003 µg/L Detected
PFMPA 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 9/13/2023 0.0090 µg/L 0.005 µg/L Detected
HFPO-DA 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/13/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 9/13/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFTrDA 9/13/2023 <0.007 µg/L 0.007 µg/L Not Detected
lithium 9/13/2023 <9 µg/L 9 µg/L Not Detected
PFTA 9/13/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFHxA 9/13/2023 0.0125 µg/L 0.003 µg/L Detected
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.