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States → Kansas

JEFFERSON CO RWD 12

PWS ID: KS2008717 · WINCHESTER, Kansas 66097

PFAS Detected

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

Population Served
3,635
Total Violations
7
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,454
County
Jefferson
School/Daycare
No
MCL Violations
0
Monitoring Violations
3
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 1 1993
Consumer Confidence Rule Other 1 2000
TTHM MR 1 2018
Total Haloacetic Acids (HAA5) MR 1 2018

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 6 of 180 samples detected PFAS.

Contaminant Date Result MRL Status
NMeFOSAA 9/10/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 9/10/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 9/10/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 9/10/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFPeA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 8/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 8/13/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 8/13/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 8/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 8/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 8/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 8/13/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 8/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/13/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/13/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 8/13/2024 <0.02 µg/L 0.02 µg/L Not Detected
HFPO-DA 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFEESA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 7/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 7/23/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 7/23/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 7/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 7/23/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFBA 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 7/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 7/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 7/23/2024 <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.