Radon in ZIP code 71418
Last updated
ZIP 71418 crosses 4 county lines. Most of its land (84.1%) is in Caldwell 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.
Predicted average indoor screening level below 2 pCi/L.
Predicted average indoor screening level below 2 pCi/L.
What this means for homes in 71418
EPA built its zone map county by county in 1993, so every address in each part of 71418 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 71418 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 Caldwell 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 71418?
ZIP 71418 spans 4 counties. The highest-potential zone among them is Zone 3 (low potential). Caldwell Parish: Zone 3 (84.1% of the ZIP's land); Richland Parish: Zone 3 (7% of the ZIP's land); Catahoula Parish: Zone 3 (5.9% of the ZIP's land); Ouachita Parish: Zone 3 (3% of the ZIP's land).
Should I test for radon in 71418?
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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