The EPA's public water system record for Fort Washakie (system 085690003) in area 08 shows no health-based violations for PFAS compounds as of 2024. Among several PFAS chemicals monitored from March to December 2024, only one of ten samples detected PFOA slightly above the reporting level but below the federal maximum contaminant level set for 2024. Other PFAS compounds were not detected above reporting levels in these samples.
1. Rule Out Concerns Stepwise
Check public water system compliance history first
The Fort Washakie system reports zero EPA health-based violations, confirming compliance with established safety standards for PFAS.
Review documented EPA occurrence data
PFOA was detected at low levels in one sample; other PFAS such as PFOS, PFHxS, PFNA, HFPO-DA, and others were not detected above reporting thresholds in any sample.
Consider household-specific water testing
To know your home’s exact PFAS concentrations, conduct a certified laboratory water test. Public system data do not describe individual household levels.
2. Impacts of Larger or Seasonal Household Use
Larger households may consume more water
Higher water use can affect how quickly filtration media reach their capacity, influencing replacement or system configuration timing.
Second homes or seasonal properties
Intermittent use changes water demand patterns, potentially affecting filtration system performance if untreated water sits in plumbing.
3. Understanding 'Detected', 'Median', and 'Range'
'Detected' means measurable presence, not a violation
Detection indicates that a measurement instrument found the chemical above a reporting threshold but does not indicate unsafe levels.
'Median' summarizes the middle value of detected results
Median provides a central tendency of detected samples, helpful for understanding typical occurrence in sampling.
'Range' shows the span between lowest and highest detected values
This reflects variability in sample results, not necessarily risk levels.
4. Public System Records vs. Private Well Testing
Public system monitoring reflects average water delivered to many customers
Data represent the system-wide conditions over time but cannot specify individual household’s water quality.
Private well testing is distinct and required for personal water details
Only a private test can establish concentrations in your well or home plumbing.
5. Comparing Area 08 With Neighboring Counties
Use local EPA public water system data for neighboring areas
Comparisons can highlight regional differences but beware overgeneralizing beyond documented measurements.
Do not interpret detection as a problem without context
Regional detections are common with trace PFAS but do not imply a health hazard alone.
In summary, start by confirming your public water system’s health-based compliance and review available EPA PFAS occurrence data. Then consider testing your household water to inform your choice in treatment equipment. The Autotrol PFAS Forever Chemicals Filter ships ready to configure and is documented as a solution for reducing PFAS compounds. This checklist guides you through evaluating your situation without assuming your home's water characteristics.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2024-12-04. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR5 monitoring (2023-2025) for FORT WASHAKIE (085690003), 08: 100 results across 10 listed contaminants, 1 detections above the reporting level; 1 results above a 2024 federal MCL
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