PlainWater
States → California

HELENDALE COMMUNITY SERVICE DISTRICT

PWS ID: CA3610112 · HELENDALE, California 92342

PFAS Detected

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

Population Served
6,347
Total Violations
51
Health-Based Violations
44
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
2,875
County
San Bernardino
School/Daycare
No
MCL Violations
44
Monitoring Violations
4
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MCL 42 2011
Nitrite MCL 2 2001
TTHM MR 2 2019
Total Haloacetic Acids (HAA5) MR 2 2019

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 28 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFPeA 9/18/2023 0.0060 µg/L 0.003 µg/L Detected
PFBA 9/18/2023 0.0082 µg/L 0.005 µg/L Detected
PFHxA 9/18/2023 0.0050 µg/L 0.003 µg/L Detected
PFOA 9/18/2023 0.0130 µg/L 0.004 µg/L Detected
PFHxS 9/18/2023 0.0146 µg/L 0.003 µg/L Detected
PFOS 9/18/2023 0.0230 µg/L 0.004 µg/L Detected
PFBS 9/18/2023 0.0060 µg/L 0.003 µg/L Detected
PFTA 8/28/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 8/28/2023 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 8/28/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 8/28/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFDA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 7/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 7/10/2023 0.0059 µg/L 0.005 µg/L Detected
HFPO-DA 7/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 7/10/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFMPA 7/10/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 7/10/2023 0.0067 µg/L 0.003 µg/L Detected
PFMBA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 7/10/2023 <0.02 µg/L 0.02 µg/L Not Detected
11Cl-PF3OUdS 7/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 7/10/2023 0.0064 µg/L 0.003 µg/L Detected
4:2 FTS 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 7/10/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFOA 7/10/2023 0.0092 µg/L 0.004 µg/L Detected
PFOS 7/10/2023 0.0134 µg/L 0.004 µg/L Detected
PFNA 7/10/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 7/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 7/10/2023 0.0102 µg/L 0.003 µg/L Detected
PFHpA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 7/10/2023 14.5000 µg/L 9 µg/L Detected
PFBS 7/10/2023 0.0053 µg/L 0.003 µg/L Detected
PFPeS 7/10/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 7/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 7/10/2023 <0.007 µg/L 0.007 µg/L Not Detected
4:2 FTS 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 7/10/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 7/10/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 7/10/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFDA 7/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 7/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 7/10/2023 <0.006 µg/L 0.006 µg/L Not Detected
lithium 7/10/2023 <9 µg/L 9 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.