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States → Louisiana

KEATCHIE WATER SYSTEM

PWS ID: LA1031007 · KEATCHIE, Louisiana 71046

PFAS Detected

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

Population Served
3,759
Total Violations
235
Health-Based Violations
141
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
1,253
County
De Soto Parish
School/Daycare
No
MCL Violations
55
Monitoring Violations
50
Treatment Tech Violations
86

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Groundwater Rule TT 85 2025
TTHM MCL 36 2024
Coliform (TCR) MCL 19 2014
Consumer Confidence Rule Other 16 2021
TTHM MR 15 2016
Total Haloacetic Acids (HAA5) MR 15 2016
Public Notice Other 12 2024
Lead and Copper Rule MR 11 2020
Chlorine MR 5 2015
Coliform (TCR) MR 4 2015
LEAD AND COPPER RULE REVISIONS TT 1 2024
LEAD AND COPPER RULE REVISIONS RPT 1 2024

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 14 of 420 samples detected PFAS.

Contaminant Date Result MRL Status
PFDA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 5/9/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 5/9/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 5/9/2023 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 5/9/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 5/9/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFHxS 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 5/9/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFOA 5/9/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 5/9/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 5/9/2023 14.9000 µg/L 9 µg/L Detected
PFOS 5/9/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/9/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/9/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 5/9/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 5/9/2023 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 5/9/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 5/9/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFNA 5/9/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 5/9/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 5/9/2023 <0.008 µg/L 0.008 µg/L Not Detected
lithium 5/9/2023 14.7000 µg/L 9 µg/L Detected
PFTrDA 5/9/2023 <0.007 µg/L 0.007 µg/L Not Detected
NMeFOSAA 5/9/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 5/9/2023 <0.005 µg/L 0.005 µg/L Not Detected
lithium 5/9/2023 15.1000 µg/L 9 µg/L Detected
PFTA 5/9/2023 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 5/9/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 5/9/2023 <0.007 µg/L 0.007 µg/L Not Detected
NMeFOSAA 5/9/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFOA 5/21/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 5/21/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 5/21/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 5/21/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 5/21/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/21/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 5/21/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 5/21/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 5/21/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/21/2024 <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.