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States → Louisiana

SCHRIEVER WATER TREATMENT SERVICE AREA

PWS ID: LA1109002 · HOUMA, Louisiana 70361

PFAS Detected

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

Population Served
116,460
Total Violations
30
Health-Based Violations
11
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
38,820
County
Terrebonne Parish
School/Daycare
No
MCL Violations
4
Monitoring Violations
12
Treatment Tech Violations
7

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine dioxide MR 8 2021
Consumer Confidence Rule Other 6 2017
Coliform (TCR) MCL 4 2004
Revised Total Coliform Rule MON 4 2016
Interim Enhanced Surface Water Treatment Rule TT 4 2012
Surface Water Treatment Rule TT 3 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
6:2 FTS 7/18/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 7/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 7/18/2023 <0.002 µg/L 0.002 µg/L Not Detected
HFPO-DA 7/18/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 7/18/2023 <0.004 µg/L 0.004 µg/L Not Detected
ADONA 7/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 7/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 7/18/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 7/18/2023 0.0060 µg/L 0.005 µg/L Detected
PFOA 7/18/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 7/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 7/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 7/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 7/18/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHxS 7/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 7/18/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 7/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 7/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 7/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 7/18/2023 <0.02 µg/L 0.02 µg/L Not Detected
11Cl-PF3OUdS 7/18/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 7/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 7/18/2023 <0.005 µg/L 0.005 µg/L Not Detected
lithium 7/18/2023 <9 µg/L 9 µg/L Not Detected
PFPeS 7/18/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFTA 7/18/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 7/18/2023 <0.007 µg/L 0.007 µg/L Not Detected
NMeFOSAA 7/18/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 7/18/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 4/4/2023 <0.007 µg/L 0.007 µg/L Not Detected
8:2 FTS 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 4/4/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 4/4/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFTA 4/4/2023 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 4/4/2023 0.0068 µg/L 0.005 µg/L Detected
lithium 4/4/2023 <9 µg/L 9 µg/L Not Detected
PFHxA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
6:2 FTS 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 4/4/2023 <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.