PlainWater
States → Oklahoma

DEWEY PUBLIC WORKS AUTHORITY

PWS ID: OK3007402 · DEWEY, Oklahoma 74029

PFAS Detected

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

Population Served
3,490
Total Violations
61
Health-Based Violations
14
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,736
County
Washington
School/Daycare
No
MCL Violations
13
Monitoring Violations
32
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 11 2024
TTHM MR 10 2024
Total Haloacetic Acids (HAA5) MR 8 2017
Coliform (TCR) MR 6 2009
Consumer Confidence Rule Other 4 2016
Revised Total Coliform Rule MON 4 2022
Chlorine MR 4 2022
Coliform (TCR) MCL 2 1996
LEAD AND COPPER RULE REVISIONS TT 1 2024
LEAD AND COPPER RULE REVISIONS RPT 1 2024

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 5 of 240 samples detected PFAS.

Contaminant Date Result MRL Status
PFBA 8/8/2023 0.0059 µg/L 0.005 µg/L Detected
NEtFOSAA 8/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 8/8/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 8/8/2023 <0.008 µg/L 0.008 µg/L Not Detected
lithium 8/8/2023 <9 µg/L 9 µg/L Not Detected
PFHpS 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 8/8/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 8/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 8/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 8/8/2023 <0.006 µg/L 0.006 µg/L Not Detected
6:2 FTS 8/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 8/8/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 8/8/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 8/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 8/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 8/8/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 8/8/2023 <0.004 µg/L 0.004 µg/L Not Detected
lithium 8/8/2023 <9 µg/L 9 µg/L Not Detected
NMeFOSAA 8/8/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 8/8/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 8/8/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 8/8/2023 <0.007 µg/L 0.007 µg/L Not Detected
ADONA 5/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 5/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
lithium 5/10/2023 <9 µg/L 9 µg/L Not Detected
PFTA 5/10/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 5/10/2023 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 5/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 5/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 5/10/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFBS 5/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/10/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 5/10/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 5/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 5/10/2023 <0.005 µg/L 0.005 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.