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States → Oklahoma

CHEROKEE CO. RWD #11

PWS ID: OK1221637 · HULBERT, Oklahoma 74441

PFAS Detected

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

Population Served
3,395
Total Violations
38
Health-Based Violations
6
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,593
County
Cherokee
School/Daycare
No
MCL Violations
6
Monitoring Violations
23
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 8 2009
Chlorine MR 8 2004
Coliform (TCR) MCL 6 2009
CARBON, TOTAL MR 5 2008
Consumer Confidence Rule Other 4 2017
TTHM MR 1 2013
Total Haloacetic Acids (HAA5) MR 1 2013

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 180 samples detected PFAS.

Contaminant Date Result MRL Status
11Cl-PF3OUdS 9/17/2025 <0.005 µg/L 0.005 µg/L Not Detected
lithium 9/17/2025 <9 µg/L 9 µg/L Not Detected
PFHpA 9/17/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 9/17/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 9/17/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/17/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 9/17/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 9/17/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/17/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 9/17/2025 <0.002 µg/L 0.002 µg/L Not Detected
9Cl-PF3ONS 9/17/2025 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 9/17/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/17/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/17/2025 <0.005 µg/L 0.005 µg/L Not Detected
NEtFOSAA 9/17/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 9/17/2025 0.0031 µg/L 0.003 µg/L Detected
PFHxA 9/17/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 9/17/2025 <0.007 µg/L 0.007 µg/L Not Detected
6:2 FTS 9/17/2025 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 9/17/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFHpS 9/17/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/17/2025 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/17/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFMBA 9/17/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/17/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/17/2025 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 9/17/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/17/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/17/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 9/17/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFBA 9/17/2025 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 9/17/2025 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/17/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/17/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/17/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 9/17/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 9/17/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/17/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 9/17/2025 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/17/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 9/17/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFPeS 9/17/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 9/17/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 9/17/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 9/17/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 9/17/2025 <9 µg/L 9 µg/L Not Detected
NMeFOSAA 9/17/2025 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 9/17/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 9/17/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 9/17/2025 <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.