Worthington, IA Radon Levels
Check local Worthington radon levels and find certified testing and mitigation professionals to keep your home safe
Worthington, IA Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
Dubuque County, IA
Zip Code
52078
Located in Dubuque County near the Mississippi River bluffs, this small Iowa community sits in EPA Zone 1 where radon potential is highest statewide. With limited testing submissions available for ZIP 57078, homeowners should prioritize radon measurement given the area's limestone bedrock and glacial till soils. Local housing stock, predominantly featuring basement foundations, can trap radon gases that migrate upward through soil and foundation cracks.
Worthington, IA Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Need Radon Mitigation or Testing in Worthington?
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Radon FAQ for Worthington, IA
What EPA Radon Zone is Worthington in?
Worthington and the 52078 zip code are in Dubuque 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 Worthington?
Radon mitigation in Worthington 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 Worthington?
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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