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LENA WATER SYSTEM INC

PWS ID: LA1079019 · LENA, Louisiana 71447

PFAS Detected

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

Population Served
3,540
Total Violations
27
Health-Based Violations
17
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
1,180
County
Rapides Parish
School/Daycare
No
MCL Violations
6
Monitoring Violations
8
Treatment Tech Violations
11

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Groundwater Rule TT 10 2019
Coliform (TCR) MR 8 2012
Coliform (TCR) MCL 6 1993
LEAD AND COPPER RULE REVISIONS TT 1 2024

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 8 of 240 samples detected PFAS.

Contaminant Date Result MRL Status
9Cl-PF3ONS 6/5/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 6/5/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 6/5/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 6/5/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 6/5/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 6/5/2023 <0.004 µg/L 0.004 µg/L Not Detected
ADONA 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 6/5/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 6/5/2023 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 6/5/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 6/5/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 6/5/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 6/5/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 6/5/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 6/5/2023 17.0000 µg/L 9 µg/L Detected
PFTA 6/5/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFPeA 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 6/5/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 6/5/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 6/5/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFBS 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 6/5/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFDoA 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 6/5/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 6/5/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 6/5/2023 <0.004 µg/L 0.004 µg/L Not Detected
NEtFOSAA 6/5/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHpA 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 6/5/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFTA 6/5/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 6/5/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFHxS 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 6/5/2023 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 6/5/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 6/5/2023 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 6/5/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 6/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 6/5/2023 <0.005 µg/L 0.005 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.