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States → Louisiana

PONTCHATOULA WATER SYSTEM

PWS ID: LA1105019 · PONCHATOULA, Louisiana 70454

PFAS Detected

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

Population Served
6,657
Total Violations
38
Health-Based Violations
12
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
2,219
County
Tangipahoa Parish
School/Daycare
No
MCL Violations
12
Monitoring Violations
10
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 12 2009
TTHM MR 4 2014
Total Haloacetic Acids (HAA5) MR 4 2014
Consumer Confidence Rule Other 3 2024
Lead and Copper Rule MR 2 2024

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 6 of 180 samples detected PFAS.

Contaminant Date Result MRL Status
11Cl-PF3OUdS 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFDoA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 4/4/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFMBA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 4/4/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHpS 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 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
PFDA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 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
NEtFOSAA 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 4/4/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 4/4/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFUnA 4/4/2023 <0.002 µg/L 0.002 µg/L Not Detected
lithium 4/4/2023 10.3000 µg/L 9 µg/L Detected
PFOS 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 4/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 4/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 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
PFHpS 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 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
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
PFHxS 4/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 4/4/2023 <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.