PlainWater
States → California

PICO WD

PWS ID: CA1910125 · PICO RIVERA, California 90660

PFAS Detected

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

Population Served
22,051
Total Violations
50
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
5,361
County
Los Angeles
School/Daycare
No
MCL Violations
4
Monitoring Violations
42
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 4 1993
1,2,4-Trichlorobenzene MR 2 2021
Xylenes, Total MR 2 2021
DICHLOROMETHANE MR 2 2021
o-Dichlorobenzene MR 2 2021
Vinyl chloride MR 2 2021
1,2-Dichloroethane MR 2 2021
Carbon tetrachloride MR 2 2021
1,2-Dichloropropane MR 2 2021
1,1,2-Trichloroethane MR 2 2021
CHLOROBENZENE MR 2 2021
Benzene MR 2 2021
Toluene MR 2 2021
Ethylbenzene MR 2 2021
Styrene MR 2 2021
p-Dichlorobenzene MR 2 2021
Trichloroethylene MR 2 2021
1,1-Dichloroethylene MR 2 2021
cis-1,2-Dichloroethylene MR 2 2021
1,1,1-Trichloroethane MR 2 2021
trans-1,2-Dichloroethylene MR 2 2021
Tetrachloroethylene MR 2 2021

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 57 of 240 samples detected PFAS.

Contaminant Date Result MRL Status
PFTA 9/18/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFHxS 9/18/2023 0.0057 µg/L 0.003 µg/L Detected
PFHpA 9/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/18/2023 0.0073 µg/L 0.003 µg/L Detected
PFHxA 9/18/2023 0.0057 µg/L 0.003 µg/L Detected
lithium 9/18/2023 <9 µg/L 9 µg/L Not Detected
NMeFOSAA 9/18/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFNA 9/18/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFTrDA 9/18/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFPeA 9/18/2023 0.0067 µg/L 0.003 µg/L Detected
NEtFOSAA 9/18/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 9/18/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 9/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/18/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 9/18/2023 0.0280 µg/L 0.004 µg/L Detected
PFPeS 9/18/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 9/18/2023 0.0095 µg/L 0.005 µg/L Detected
ADONA 9/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/18/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/18/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 9/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 9/18/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFOA 9/18/2023 0.0140 µg/L 0.004 µg/L Detected
PFEESA 9/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 9/18/2023 <0.002 µg/L 0.002 µg/L Not Detected
6:2 FTS 9/18/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/18/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 9/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/18/2023 <0.002 µg/L 0.002 µg/L Not Detected
NFDHA 9/18/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFBS 9/18/2023 0.0062 µg/L 0.003 µg/L Detected
PFMBA 9/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/18/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 9/18/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/18/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/18/2023 0.0071 µg/L 0.005 µg/L Detected
HFPO-DA 9/18/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/18/2023 0.0130 µg/L 0.003 µg/L Detected
11Cl-PF3OUdS 9/18/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 9/18/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 9/18/2023 0.0100 µg/L 0.003 µg/L Detected
PFDoA 9/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 9/18/2023 0.0051 µg/L 0.003 µg/L Detected
PFOA 9/18/2023 0.0130 µg/L 0.004 µg/L Detected
PFOS 9/18/2023 0.0190 µg/L 0.004 µg/L 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.