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States → Texas

CNP UTILITY DISTRICT

PWS ID: TX1010429 · HOUSTON, Texas 77098-3709

PFAS Detected

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

Population Served
14,718
Total Violations
6
Health-Based Violations
4
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
4,906
County
Harris
School/Daycare
No
MCL Violations
4
Monitoring Violations
0
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 4 2003

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 9 of 240 samples detected PFAS.

Contaminant Date Result MRL Status
lithium 8/16/2024 <9 µg/L 9 µg/L Not Detected
PFTA 8/16/2024 <0.008 µg/L 0.008 µg/L Not Detected
NMeFOSAA 8/16/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 8/16/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 8/16/2024 <0.007 µg/L 0.007 µg/L Not Detected
9Cl-PF3ONS 7/25/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 7/25/2024 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 7/25/2024 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 7/25/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 7/25/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFDoA 7/25/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 7/25/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 7/25/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 7/25/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 7/25/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/25/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 7/25/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 7/25/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 7/25/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 7/25/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 7/25/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 7/25/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFBA 7/25/2024 0.0055 µg/L 0.005 µg/L Detected
PFMBA 7/25/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 7/25/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 7/25/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 7/25/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 7/25/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 7/25/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 7/25/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFTrDA 5/23/2024 <0.007 µg/L 0.007 µg/L Not Detected
lithium 5/23/2024 <9 µg/L 9 µg/L Not Detected
PFTA 5/23/2024 <0.008 µg/L 0.008 µg/L Not Detected
NMeFOSAA 5/23/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 5/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 5/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
NEtFOSAA 5/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 5/23/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFBS 5/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 5/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 5/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 5/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 5/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 5/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 5/23/2024 <0.007 µg/L 0.007 µg/L Not Detected
HFPO-DA 5/23/2024 <0.005 µg/L 0.005 µg/L Not 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.