PlainWater
States → Oklahoma

PONCA CITY MUN WATER

PWS ID: OK1021202 · PONCA CITY, Oklahoma 74602

PFAS Detected

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

Population Served
27,155
Total Violations
98
Health-Based Violations
25
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
12,412
County
Kay
School/Daycare
No
MCL Violations
14
Monitoring Violations
42
Treatment Tech Violations
11

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
E. COLI MR 18 2017
Coliform (TCR) MCL 14 2003
CARBON, TOTAL MR 9 2007
Interim Enhanced Surface Water Treatment Rule TT 8 2011
TTHM MR 5 2023
Total Haloacetic Acids (HAA5) MR 5 2023
Coliform (TCR) MR 4 2009
Surface Water Treatment Rule TT 3 2002
Surface Water Treatment Rule MR 1 1998

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 17 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
NEtFOSAA 8/7/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/7/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/7/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 8/7/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 8/7/2024 <0.005 µg/L 0.005 µg/L Not Detected
lithium 8/7/2024 17.2000 µg/L 9 µg/L Detected
PFTrDA 8/7/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFHpS 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 8/7/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFHxA 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/7/2024 0.0045 µg/L 0.003 µg/L Detected
NFDHA 8/7/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFHxS 8/7/2024 0.0058 µg/L 0.003 µg/L Detected
NMeFOSAA 8/7/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFOS 8/7/2024 0.0066 µg/L 0.004 µg/L Detected
PFOA 8/7/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 8/7/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/7/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFUnA 8/7/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/7/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 8/7/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFMPA 8/7/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/7/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 5/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 5/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 5/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 5/8/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 5/8/2024 <0.004 µg/L 0.004 µg/L Not Detected
lithium 5/8/2024 19.4000 µg/L 9 µg/L Detected
NMeFOSAA 5/8/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 5/8/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 5/8/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 5/8/2024 <0.008 µg/L 0.008 µg/L Not Detected
NFDHA 5/8/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFDA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 5/8/2024 0.0050 µg/L 0.003 µg/L Detected
PFHpA 5/8/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/8/2024 0.0055 µg/L 0.003 µg/L Detected
PFNA 5/8/2024 <0.004 µg/L 0.004 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.