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NORTHWEST HARRIS COUNTY MUD 5

PWS ID: TX1010884 · HOUSTON, Texas 77019-2191

PFAS Detected

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

Population Served
23,766
Total Violations
27
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
7,922
County
Harris
School/Daycare
No
MCL Violations
0
Monitoring Violations
24
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 16 2003
TTHM MR 4 2021
Total Haloacetic Acids (HAA5) MR 4 2021
Public Notice Other 2 2003

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 13 of 300 samples detected PFAS.

Contaminant Date Result MRL Status
PFTA 9/8/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFHxA 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 9/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
lithium 9/8/2023 32.5000 µg/L 9 µg/L Detected
NMeFOSAA 9/8/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFMPA 9/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/8/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 9/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFTrDA 9/8/2023 <0.007 µg/L 0.007 µg/L Not Detected
8:2 FTS 9/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 9/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 9/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
11Cl-PF3OUdS 9/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 9/8/2023 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 9/8/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFDoA 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 9/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 9/8/2023 0.0119 µg/L 0.003 µg/L Detected
PFMBA 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 9/8/2023 <0.02 µg/L 0.02 µg/L Not Detected
4:2 FTS 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 9/8/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFTA 9/8/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFDoA 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 9/8/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFHpA 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 9/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 9/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 9/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 9/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 9/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 9/8/2023 <0.003 µg/L 0.003 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.