PlainWater

SJCU-SAWGRASS GRID

PWS ID: FL2551004 · ST. AUGUSTINE, Florida 32085

PFAS Detected

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

Population Served
13,023
Total Violations
43
Health-Based Violations
8
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
5,209
County
St. Johns
School/Daycare
No
MCL Violations
8
Monitoring Violations
15
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 8 2006
E. COLI MR 6 2025
Nitrate MR 3 2022
Lead and Copper Rule MR 3 2022
Coliform (TCR) MR 3 1999
Revised Total Coliform Rule RPT 2 2024

PFAS Testing Results (UCMR5)

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

Contaminant Date Result MRL Status
NMeFOSAA 8/3/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 8/3/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 8/3/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 8/3/2023 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 8/3/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 8/3/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 8/3/2023 <0.007 µg/L 0.007 µg/L Not Detected
NMeFOSAA 8/3/2023 <0.006 µg/L 0.006 µg/L Not Detected
8:2 FTS 7/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHpA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 7/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 7/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 7/11/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 7/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 7/11/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFBA 7/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 7/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 7/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 7/11/2023 <9 µg/L 9 µg/L Not Detected
ADONA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 7/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
NFDHA 7/11/2023 <0.02 µg/L 0.02 µg/L Not Detected
6:2 FTS 7/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 7/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 7/11/2023 <0.002 µg/L 0.002 µg/L Not Detected
NFDHA 7/11/2023 <0.02 µg/L 0.02 µg/L Not Detected
lithium 7/11/2023 <9 µg/L 9 µg/L Not Detected
PFDoA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 7/11/2023 0.0067 µg/L 0.003 µg/L Detected
11Cl-PF3OUdS 7/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 7/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 7/11/2023 0.0085 µg/L 0.005 µg/L Detected
6:2 FTS 7/11/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 7/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 7/11/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 7/11/2023 0.0083 µg/L 0.003 µg/L Detected
PFMPA 7/11/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFUnA 7/11/2023 <0.002 µg/L 0.002 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.