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States → Oklahoma

TECUMSEH UTILITY AUTHORITY

PWS ID: OK1020506 · TECUMSEH, Oklahoma 74873

PFAS Detected

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

Population Served
6,098
Total Violations
757
Health-Based Violations
543
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
2,559
County
Pottawatomie
School/Daycare
No
MCL Violations
503
Monitoring Violations
173
Treatment Tech Violations
40

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 371 2025
Total Haloacetic Acids (HAA5) MCL 108 2025
Interim Enhanced Surface Water Treatment Rule MR 45 2019
CARBON, TOTAL TT 40 2021
Coliform (TCR) MR 32 2015
CARBON, TOTAL MR 27 2015
TTHM MR 24 2025
Coliform (TCR) MCL 24 2013
Total Haloacetic Acids (HAA5) MR 19 2025
Lead and Copper Rule MR 17 2012
Chlorine MR 4 2019
Revised Total Coliform Rule MON 4 2019
Surface Water Treatment Rule MR 1 1999
Consumer Confidence Rule Other 1 2013

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 5 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFPeA 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 9/11/2024 0.0079 µg/L 0.005 µg/L Detected
HFPO-DA 9/11/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/11/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFUnA 9/11/2024 <0.002 µg/L 0.002 µg/L Not Detected
6:2 FTS 9/11/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFDoA 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 9/11/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 9/11/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/11/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 9/11/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/11/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/11/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFMBA 9/11/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/11/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 9/11/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 8/21/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 8/21/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 8/21/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 8/21/2024 <0.006 µg/L 0.006 µg/L Not Detected
lithium 8/21/2024 30.0000 µg/L 9 µg/L Detected
PFHxA 7/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 7/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 7/10/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 7/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 7/10/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 7/10/2024 0.0084 µg/L 0.005 µg/L Detected
HFPO-DA 7/10/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 7/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 7/10/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFEESA 7/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 7/10/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFMBA 7/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 7/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 7/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 7/10/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 7/10/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 7/10/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 7/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/10/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 7/10/2024 <0.003 µg/L 0.003 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.