Radon in ZIP code 49840
Last updated
ZIP 49840 lies entirely in Schoolcraft County, Michigan. 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 49840
EPA built its zone map county by county in 1993, so every address in 49840 shares Schoolcraft 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 Schoolcraft County
Michigan radon help
MI Dept. of Environmental Quality, Office of Waste Management and Radiological Protection can help with test kits, local data and credentialed professionals: www.michigan.gov/egle/about/organization/materials-management/indoor-radon.
Frequently asked questions
What is the radon zone for ZIP code 49840?
ZIP 49840 lies in Schoolcraft County, which EPA places in Zone 3 (low potential).
Should I test for radon in 49840?
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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