PlainWater
States → Oklahoma

GUYMON

PWS ID: OK2007003 · GUYMON, Oklahoma 73942

PFAS Detected

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

Population Served
11,442
Total Violations
71
Health-Based Violations
34
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
4,800
County
Texas
School/Daycare
No
MCL Violations
34
Monitoring Violations
30
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate-Nitrite MR 20 2023
Fluoride MCL 16 1981
Coliform (TCR) MCL 14 2005
Nitrate-Nitrite MCL 4 2025
Chlorine MR 4 2019
Revised Total Coliform Rule MON 4 2019
Coliform (TCR) MR 2 1999

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 12 of 360 samples detected PFAS.

Contaminant Date Result MRL Status
PFDA 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 9/4/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFEESA 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 9/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 9/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
9Cl-PF3ONS 9/4/2023 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 9/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 9/4/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 9/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 9/4/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 9/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 9/4/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 9/4/2023 <0.008 µg/L 0.008 µg/L Not Detected
lithium 9/4/2023 116.0000 µg/L 9 µg/L Detected
PFNA 9/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 9/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 9/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 9/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFUnA 9/4/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFOA 9/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 9/4/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/4/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 9/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 9/4/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 9/4/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 9/4/2023 <0.007 µg/L 0.007 µg/L Not Detected
HFPO-DA 9/4/2023 <0.005 µg/L 0.005 µg/L Not Detected
lithium 9/4/2023 137.0000 µg/L 9 µg/L 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.