PlainWater
States → California

CAL AM - OAKHURST

PWS ID: CA2010007 · SACRAMENTO, California 95838

PFAS Detected

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

Population Served
3,693
Total Violations
231
Health-Based Violations
221
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
1,119
County
Madera
School/Daycare
No
MCL Violations
221
Monitoring Violations
6
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MCL 123 2019
Combined Uranium MCL 94 2019
Coliform (TCR) MCL 4 1998
Lead and Copper Rule MR 2 2007
Nitrate MR 2 2003
Coliform (TCR) MR 2 2008

PFAS Testing Results (UCMR5)

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

Contaminant Date Result MRL Status
6:2 FTS 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
11Cl-PF3OUdS 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
PFMPA 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/13/2023 <0.003 µg/L 0.003 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
9Cl-PF3ONS 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
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
ADONA 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
PFHxS 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 9/13/2023 <0.003 µg/L 0.003 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
11Cl-PF3OUdS 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 9/13/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHpA 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
8:2 FTS 9/13/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 9/13/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 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
PFPeS 9/13/2023 <0.004 µg/L 0.004 µg/L Not Detected
6:2 FTS 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
4:2 FTS 9/13/2023 <0.003 µg/L 0.003 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
PFMPA 9/13/2023 <0.004 µg/L 0.004 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.