PlainWater

PETER PITCHESS HONOR RANCHO DETN. CTR

PWS ID: CA1900046 · CASTAIC, California 91384

PFAS Detected

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

Population Served
7,000
Total Violations
9
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,952
County
Los Angeles
School/Daycare
No
MCL Violations
0
Monitoring Violations
6
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Gross Alpha, Excl. Radon and U MR 2 1981
Coliform (TCR) MR 2 1993
Benzene MR 2 2008

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 7 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
PFTA 5/3/2023 <0.008 µg/L 0.008 µg/L Not Detected
4:2 FTS 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 5/3/2023 45.4000 µg/L 9 µg/L Detected
PFTrDA 5/3/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFBS 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 5/3/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 5/3/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 5/3/2023 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 5/3/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 5/3/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 5/3/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 5/3/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFNA 5/3/2023 <0.004 µg/L 0.004 µg/L Not Detected
NEtFOSAA 5/3/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 5/3/2023 <0.004 µg/L 0.004 µg/L Not Detected
11Cl-PF3OUdS 5/3/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/3/2023 0.0031 µg/L 0.003 µg/L Detected
NMeFOSAA 5/3/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFOS 5/3/2023 0.0065 µg/L 0.004 µg/L Detected
PFOA 5/3/2023 0.0045 µg/L 0.004 µg/L Detected
PFDA 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/3/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHpA 5/3/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 2/14/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 2/14/2024 0.0050 µg/L 0.004 µg/L Detected
PFHxS 2/14/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 2/14/2024 0.0055 µg/L 0.004 µg/L Detected
PFPeA 11/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 11/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeS 11/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 11/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 11/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 11/8/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 11/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 11/8/2023 46.1000 µg/L 9 µg/L Detected
PFTA 11/8/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 11/8/2023 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 11/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 11/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 11/8/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFBA 11/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 11/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 11/8/2023 <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.