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HOUMA WATER TREATMENT SERVICE AREA

PWS ID: LA1109001 · HOUMA, Louisiana 70361

PFAS Detected

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

Population Served
11,658
Total Violations
20
Health-Based Violations
6
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
3,886
County
Terrebonne Parish
School/Daycare
No
MCL Violations
5
Monitoring Violations
4
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 6 2017
TTHM MCL 5 2018
Chlorine dioxide MR 4 2020
Public Notice Other 2 2018
Surface Water Treatment Rule TT 1 1994

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 6 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFHxA 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 9/7/2023 0.0080 µg/L 0.005 µg/L Detected
lithium 9/7/2023 <9 µg/L 9 µg/L Not Detected
PFBS 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 9/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 9/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 9/7/2023 <0.002 µg/L 0.002 µg/L Not Detected
9Cl-PF3ONS 9/7/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 9/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 9/7/2023 <0.006 µg/L 0.006 µg/L Not Detected
6:2 FTS 9/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 9/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 9/7/2023 0.0037 µg/L 0.003 µg/L Detected
PFMBA 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 9/7/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 9/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFTA 9/7/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 9/7/2023 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 9/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 6/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 6/13/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 6/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 6/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 6/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 6/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 6/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 6/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 6/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 6/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
8:2 FTS 6/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
lithium 6/13/2023 <9 µg/L 9 µg/L Not Detected
PFNA 6/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 6/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 6/13/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 6/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 6/13/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 6/13/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFHpS 6/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 6/13/2023 <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.