PlainWater
States → Missouri

ST JAMES PWS

PWS ID: MO3010712 · ST JAMES, Missouri 65559-0000

PFAS Detected

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

Population Served
3,935
Total Violations
43
Health-Based Violations
21
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,715
County
Phelps
School/Daycare
No
MCL Violations
21
Monitoring Violations
9
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 21 2014
Coliform (TCR) MR 8 2001
Lead and Copper Rule MR 1 2023
Consumer Confidence Rule Other 1 2020

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 9 of 240 samples detected PFAS.

Contaminant Date Result MRL Status
PFMPA 7/25/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 7/25/2023 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 7/25/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 7/25/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 7/25/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 7/25/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 7/25/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 7/25/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 7/25/2023 <0.02 µg/L 0.02 µg/L Not Detected
HFPO-DA 7/25/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 7/25/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 7/25/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 7/25/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 7/25/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFBS 7/25/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 7/25/2023 0.0033 µg/L 0.003 µg/L Detected
PFHxS 7/25/2023 0.0058 µg/L 0.003 µg/L Detected
ADONA 7/25/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 7/25/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 7/25/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 7/25/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 7/25/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 7/25/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 7/25/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHpA 7/25/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 5/9/2023 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 5/9/2023 <0.005 µg/L 0.005 µg/L Not Detected
lithium 5/9/2023 <9 µg/L 9 µg/L Not Detected
PFTA 5/9/2023 <0.008 µg/L 0.008 µg/L Not Detected
NMeFOSAA 5/9/2023 <0.006 µg/L 0.006 µg/L Not Detected
ADONA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 5/9/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/9/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 5/9/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/9/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 5/9/2023 <0.004 µg/L 0.004 µg/L Not Detected
HFPO-DA 5/9/2023 <0.005 µg/L 0.005 µg/L Not Detected
NFDHA 5/9/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFHxS 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 5/9/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 5/9/2023 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 5/9/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 5/9/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 5/9/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 5/9/2023 <0.008 µg/L 0.008 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.