Radon in ZIP code 71104
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ZIP 71104 crosses 2 county lines. Most of its land (95%) is in Caddo Parish, Louisiana. EPA’s radon zone for this area: Zone 3, low potential.
Predicted average indoor screening level below 2 pCi/L.
Predicted average indoor screening level below 2 pCi/L.
What this means for homes in 71104
EPA built its zone map county by county in 1993, so every address in each part of 71104 shares its 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.
Because 71104 crosses county lines, your county depends on your street. Your property tax bill or county assessor site shows which county you are in. Next: read how to test your home, then check the number with the level calculator.
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Nearby ZIP codes in Caddo Parish
Louisiana radon help
The Louisiana radon program can help with test kits, local data and credentialed professionals: deq.louisiana.gov/faq/category/32.
Frequently asked questions
What is the radon zone for ZIP code 71104?
ZIP 71104 spans 2 counties. The highest-potential zone among them is Zone 3 (low potential). Caddo Parish: Zone 3 (95% of the ZIP's land); Bossier Parish: Zone 3 (5% of the ZIP's land).
Should I test for radon in 71104?
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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