Irwin, IA Radon Levels
Check local Irwin radon levels and find certified testing and mitigation professionals to keep your home safe
Irwin, IA Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
Shelby County, IA
Zip Code
51446
Located in Shelby County in southwestern Iowa, Irwin sits within EPA Zone 1 where the region's glacial till deposits and underlying limestone bedrock create high radon potential across the agricultural landscape. Testing data for the 51446 area remains limited, making individual home testing essential for residents in this rural community. Iowa's characteristic loess soils over Pennsylvanian limestone can produce significant radon concentrations, particularly in homes with basements.
Irwin, IA Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Radon FAQ for Irwin, IA
What EPA Radon Zone is Irwin in?
Irwin and the 51446 zip code are in Shelby County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.
How much does radon mitigation cost in Irwin?
Radon mitigation in Irwin typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.
Should I test for radon if I'm buying a home in Irwin?
Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.
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