PlainWater
States → Louisiana

CALCASIEU PARISH WW DIST 9 CARLYSS

PWS ID: LA1019116 · SULPHUR, Louisiana 70664

PFAS Detected

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

Population Served
14,502
Total Violations
56
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
4,834
County
Calcasieu Parish
School/Daycare
No
MCL Violations
8
Monitoring Violations
45
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Total Haloacetic Acids (HAA5) MR 20 2009
TTHM MR 20 2009
Coliform (TCR) MCL 8 2009
Chlorine MR 5 2013
Groundwater Rule TT 2 2013
Consumer Confidence Rule Other 1 1999

PFAS Testing Results (UCMR5)

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

Contaminant Date Result MRL Status
PFBA 4/16/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 4/16/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 4/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 4/16/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 4/16/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 4/16/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 4/16/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 4/16/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 4/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 4/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 4/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 4/16/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 4/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 4/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 4/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 4/16/2024 16.3000 µg/L 9 µg/L Detected
HFPO-DA 4/16/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 4/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 4/16/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 4/16/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 4/16/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 4/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 4/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 4/16/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFDA 4/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 4/16/2024 <0.004 µg/L 0.004 µg/L Not Detected
6:2 FTS 4/16/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 4/16/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 4/16/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 4/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 3/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 3/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 3/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 3/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 3/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 3/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 3/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 3/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 3/6/2024 <0.02 µg/L 0.02 µg/L Not Detected
9Cl-PF3ONS 3/6/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHpA 3/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 3/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 3/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 3/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 3/6/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 3/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 3/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 3/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 3/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 3/6/2024 <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.