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States → California

CALIFORNIA-AMERICAN LARKFIELD (PUC)

PWS ID: CA4910023 · SACRAMENTO, California 95838

PFAS Detected

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

Population Served
7,913
Total Violations
6
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
2,398
County
Sonoma
School/Daycare
No
MCL Violations
2
Monitoring Violations
0
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 2 1998

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFBA 5/23/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 5/23/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 5/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 5/23/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/23/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 5/23/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 5/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 5/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 5/23/2023 <0.004 µg/L 0.004 µg/L Not Detected
6:2 FTS 5/23/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHpA 5/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/23/2023 <0.004 µg/L 0.004 µg/L Not Detected
4:2 FTS 5/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 5/23/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 5/23/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 5/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 5/23/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 5/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 5/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/23/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 5/23/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 5/23/2023 <0.004 µg/L 0.004 µg/L Not Detected
lithium 4/5/2023 13.2000 µg/L 9 µg/L Detected
PFTA 4/5/2023 <0.008 µg/L 0.008 µg/L Not Detected
NMeFOSAA 4/5/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 4/5/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 4/5/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFPeA 4/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 4/5/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 4/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 4/5/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFHpA 4/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 4/5/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFHpS 4/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 4/5/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 4/5/2023 <0.02 µg/L 0.02 µg/L Not Detected
lithium 4/5/2023 <9 µg/L 9 µg/L Not Detected
PFOA 4/5/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFBS 4/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 4/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 4/5/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 4/5/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 4/5/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 4/5/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 4/5/2023 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 4/5/2023 <0.006 µg/L 0.006 µg/L Not Detected
4:2 FTS 4/5/2023 <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.