PlainWater
States → California

DEL MAR, CITY OF

PWS ID: CA3710004 · DEL MAR, California 92014

PFAS Detected

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

Population Served
3,919
Total Violations
10
Health-Based Violations
4
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,869
County
San Diego
School/Daycare
No
MCL Violations
4
Monitoring Violations
5
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 4 1999
Coliform (TCR) MR 2 2002
Revised Total Coliform Rule MON 2 2022
Lead and Copper Rule MR 1 1993

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFMBA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 7/14/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 7/14/2025 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 7/14/2025 29.9000 µg/L 9 µg/L Detected
PFHpS 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 7/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 7/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 7/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 7/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 7/14/2025 <0.008 µg/L 0.008 µg/L Not Detected
6:2 FTS 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 7/14/2025 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 7/14/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 7/14/2025 <0.007 µg/L 0.007 µg/L Not Detected
NMeFOSAA 7/14/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFHpA 7/14/2025 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 7/14/2025 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 4/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 4/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 4/15/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 4/15/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 4/15/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFDoA 4/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 4/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 4/15/2025 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 4/15/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 4/15/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFBA 4/15/2025 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 4/15/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 4/15/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFEESA 4/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 4/15/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 4/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 4/15/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFMBA 4/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 4/15/2025 30.0000 µg/L 9 µg/L Detected
PFOA 4/15/2025 <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.