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States → Louisiana

JEFF DAVIS WATER AND SEWER COMMISSION 1

PWS ID: LA1053014 · LAKE ARTHUR, Louisiana 70549

PFAS Detected

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

Population Served
9,780
Total Violations
31
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
3,260
County
Jefferson Davis Parish
School/Daycare
No
MCL Violations
4
Monitoring Violations
17
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MR 7 2010
Consumer Confidence Rule Other 7 2022
Total Haloacetic Acids (HAA5) MR 7 2010
Coliform (TCR) MCL 4 2009
Lead and Copper Rule MR 3 2005
LEAD AND COPPER RULE REVISIONS RPT 1 2025

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
PFBS 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 8/26/2025 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 8/26/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFHxS 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 8/26/2025 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 8/26/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 8/26/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 8/26/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFPeS 8/26/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 8/26/2025 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 8/26/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 8/26/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 8/26/2025 <0.004 µg/L 0.004 µg/L Not Detected
4:2 FTS 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 8/26/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 8/26/2025 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 8/26/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/26/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/26/2025 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 8/26/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 8/26/2025 <0.002 µg/L 0.002 µg/L Not Detected
lithium 7/8/2025 21.3000 µg/L 9 µg/L Detected
PFBA 1/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 1/8/2025 <0.008 µg/L 0.008 µg/L Not Detected
9Cl-PF3ONS 1/8/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFTrDA 1/8/2025 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 1/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 1/8/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFBS 1/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 1/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 1/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 1/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 1/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 1/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 1/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 1/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 1/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 1/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 1/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
lithium 1/8/2025 24.2000 µg/L 9 µg/L Detected
PFHpS 1/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 1/8/2025 <0.004 µg/L 0.004 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.