Earlham, IA Radon Levels
Check local Earlham radon levels and find certified testing and mitigation professionals to keep your home safe
Earlham, IA Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
Madison County, IA
Zip Code
50072
Part of the Des Moines Metro area in Madison County, Earlham sits on glacial till deposits over limestone bedrock typical of south-central Iowa. Though specific testing data for zip code 50072 is not yet available, the region's geological conditions create high radon potential throughout the area. Homeowners should conduct professional testing, especially critical given Iowa's status as one of the nation's highest radon states and the prevalence of basement foundations in local construction.
Earlham, 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 Earlham, IA
What EPA Radon Zone is Earlham in?
Earlham and the 50072 zip code are in Madison 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 Earlham?
Radon mitigation in Earlham 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 Earlham?
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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