PlainWater

CITY OF ALHAMBRA

PWS ID: CA1910001 · ALHAMBRA, California 91801

PFAS Detected

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

Population Served
79,776
Total Violations
8
Health-Based Violations
4
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
18,106
County
Los Angeles
School/Daycare
No
MCL Violations
4
Monitoring Violations
0
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MCL 4 2009

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 3 of 210 samples detected PFAS.

Contaminant Date Result MRL Status
9Cl-PF3ONS 9/16/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/16/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 9/16/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 9/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 9/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 9/16/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/16/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 9/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/16/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/16/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 9/16/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFBS 9/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 9/16/2024 <0.004 µg/L 0.004 µg/L Not Detected
NEtFOSAA 9/16/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 9/16/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFTrDA 9/16/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFHpS 9/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/16/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/16/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 9/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/16/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 9/16/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/16/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 9/16/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 9/16/2024 <9 µg/L 9 µg/L Not Detected
11Cl-PF3OUdS 8/7/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFDoA 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 8/7/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 8/7/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFDA 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 8/7/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 8/7/2024 <0.004 µg/L 0.004 µg/L Not Detected
HFPO-DA 8/7/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 8/7/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFHpA 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 8/7/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 8/7/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 8/7/2024 <0.005 µg/L 0.005 µg/L Not Detected
8:2 FTS 8/7/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 8/7/2024 <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.