PlainWater

MEINERS OAKS CWD

PWS ID: CA5610005 · OJAI, California 93023

PFAS Detected

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

Population Served
4,200
Total Violations
23
Health-Based Violations
6
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,285
County
Ventura
School/Daycare
No
MCL Violations
2
Monitoring Violations
17
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 6 2007
Surface Water Treatment Rule TT 4 2009
Revised Total Coliform Rule MON 3 2023
Lead and Copper Rule MR 2 2000
TTHM MR 2 2004
Surface Water Treatment Rule MR 2 2007
Coliform (TCR) MCL 2 2005
Total Haloacetic Acids (HAA5) MR 2 2004

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 12 of 360 samples detected PFAS.

Contaminant Date Result MRL Status
NMeFOSAA 9/13/2023 <0.006 µg/L 0.006 µg/L Not Detected
lithium 9/13/2023 63.7000 µg/L 9 µg/L Detected
NEtFOSAA 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 9/13/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 9/13/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 9/13/2023 <0.007 µg/L 0.007 µg/L Not Detected
4:2 FTS 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 9/13/2023 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/13/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/13/2023 <0.002 µg/L 0.002 µg/L Not Detected
lithium 9/13/2023 65.3000 µg/L 9 µg/L Detected
PFMPA 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 9/13/2023 <0.006 µg/L 0.006 µg/L Not Detected
11Cl-PF3OUdS 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 9/13/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFOS 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFUnA 7/10/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 7/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 7/10/2023 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 7/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 7/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
11Cl-PF3OUdS 7/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 7/10/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 7/10/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 7/10/2023 <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.