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Holy Cross, IA Radon Levels

Check local Holy Cross radon levels and find certified testing and mitigation professionals to keep your home safe


Holy Cross, IA Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Dubuque County, IA
Zip Code 52053

Situated in Dubuque County along the Mississippi River bluffs, Holy Cross lies over Paleozoic limestone bedrock known for moderate-to-high radon production. Radon testing submissions for zip code 52053 are currently limited, making individual home testing essential for residents. Iowa's Zone 1 EPA designation reflects elevated radon risk, especially in homes with basements built into the region's limestone-rich geology.

Holy Cross, 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 Holy Cross, IA

What EPA Radon Zone is Holy Cross in?
Holy Cross and the 52053 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 Holy Cross?
Radon mitigation in Holy Cross 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 Holy Cross?
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 in Iowa with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
Waterloo 8.50 pCi/L 4
Ames 9.67 pCi/L 3
Fairfield 14.00 pCi/L 2
Mount Pleasant 12.00 pCi/L 2
Ottumwa 5.50 pCi/L 2
Iowa City 7.00 pCi/L 1
Muscatine No submissions 0