PlainWater
States → Wyoming

YNP-CANYON VILLAGE

PWS ID: WY5680074 · YELLOWSTONE, Wyoming 82190

PFAS Detected

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

Population Served
4,300
Total Violations
9
Health-Based Violations
3
Water Source
Surface Water

System Details

System Type
Non-Transient Non-Community
Owner Type
Federal
Connections
200
County
Park
School/Daycare
No
MCL Violations
2
Monitoring Violations
6
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 3 2007
Coliform (TCR) MCL 2 2005
Surface Water Treatment Rule MR 2 2024
Interim Enhanced Surface Water Treatment Rule TT 1 2021
Revised Total Coliform Rule MON 1 2024

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
lithium 7/21/2025 62.0000 µg/L 9 µg/L Detected
NMeFOSAA 7/21/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFTA 7/21/2025 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 7/21/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 7/21/2025 <0.007 µg/L 0.007 µg/L Not Detected
11Cl-PF3OUdS 4/21/2025 <0.005 µg/L 0.005 µg/L Not Detected
8:2 FTS 4/21/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 4/21/2025 <0.004 µg/L 0.004 µg/L Not Detected
4:2 FTS 4/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 4/21/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 4/21/2025 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 4/21/2025 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 4/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 4/21/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFDoA 4/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 4/21/2025 97.0000 µg/L 9 µg/L Detected
PFHpS 4/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 4/21/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFUnA 4/21/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFMBA 4/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 4/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 4/21/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 4/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 4/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 4/21/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFDA 4/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 4/21/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 4/21/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 4/21/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 4/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 4/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 4/21/2025 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 4/21/2025 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 4/21/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 4/21/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFUnA 4/1/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFHxS 4/1/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 4/1/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 4/1/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 4/1/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 4/1/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 4/1/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 4/1/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 4/1/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 4/1/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 4/1/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFDoA 4/1/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 4/1/2025 <0.002 µg/L 0.002 µg/L Not Detected
6:2 FTS 4/1/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 4/1/2025 <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.