Part of the Des Moines Metro in Marshall County, Gilman sits over glacial deposits and Pennsylvanian bedrock typical of central Iowa. The community lies within EPA Zone 1, indicating the highest radon potential, though comprehensive testing data for ZIP 50106 isn't available. Iowa's combination of uranium-bearing glacial materials and underlying limestone creates conditions highly favorable for radon accumulation.
Gilman, IA Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Gilman, IA Radon Testing
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Gilman Radon Facts
Key details about the radon risk profile for Gilman and the 50106 zip code area.
EPA Radon Zone
Zone 1 — High Risk
County
Marshall County, IA
Zip Code
50106
Predicted Screening Level
> 4.0 pCi/L (Zone 1)
Gilman and the 50106 zip code are located in Marshall County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.
Radon FAQ for Gilman, IA
What EPA Radon Zone is Gilman in?
Gilman and the 50106 zip code are in Marshall 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 Gilman?
Radon mitigation in Gilman 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 Gilman?
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.
Most Active Radon Markets in Iowa
Cities with the most user-submitted radon test data in the state.
