Radon in ZIP code 83545
Last updated
ZIP 83545 lies entirely in Nez Perce County, Idaho. EPA’s radon zone for this area: Zone 3, low potential.
Predicted average indoor screening level below 2 pCi/L.
What this means for homes in 83545
EPA built its zone map county by county in 1993, so every address in 83545 shares Nez Perce County’s prediction. The zone is a starting point, not a measurement of your house. A Zone 3 prediction is the lowest, but EPA still finds homes above the action level in these areas.
Next: read how to test your home, then check the number with the level calculator.
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Nearby ZIP codes in Nez Perce County
Idaho radon help
ID Department of Health and Welfare Indoor Environment/Radon (208-334-0606) can help with test kits, local data and credentialed professionals: healthandwelfare.idaho.gov/health-wellness/environmental-health/radon.
Frequently asked questions
What is the radon zone for ZIP code 83545?
ZIP 83545 lies in Nez Perce County, which EPA places in Zone 3 (low potential).
Should I test for radon in 83545?
Yes. EPA recommends testing every home regardless of zone, because radon varies from house to house. Fix the home if a confirmed result is 4 pCi/L or higher, and consider fixing between 2 and 4 pCi/L.
Free checklist · PDF
Radon Test Checklist
A one-page, step-by-step checklist for running a home radon test right the first time, and what to do with the number.
- Short-term vs. long-term test: which to use
- Closed-house conditions and where to place the kit
- What 2, 4 and 8 pCi/L mean and when to fix
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