Alpha, IL Radon Levels

Q: What EPA Radon Zone is Alpha in?

Alpha is in Henry County, EPA Zone 1.

Q: Why are radon readings shown from areas near Alpha?

No homeowner radon tests have been submitted for Alpha yet, so readings from the closest cities and the Henry County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Alpha?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

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

Alpha, IL Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Henry County, IL

Zip Code 61413

Positioned in Henry County near the Iowa border, Alpha sits within Illinois's glacial moraine region where deep till deposits over limestone bedrock create favorable conditions for radon accumulation. This small Davenport Metro area community features primarily older single-family homes and farmsteads, many with full basements typical of rural Illinois construction. With no current radon testing data available for zip code 61413, local homeowners should conduct testing to assess their individual radon exposure levels.

7.00

pCi/L area average

Above EPA Action Level

Henry County average: 7.00 pCi/L, based on 4 user-submitted tests across 4 cities in the county. No homeowner readings have been submitted for Alpha itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Alpha, IL Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Radon Readings Near Alpha, IL

No homeowner tests have been submitted for Alpha yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
New Windsor	4.1 mi	6.00 pCi/L	1
Orion	11.8 mi	4.00 pCi/L	1
Coal Valley	17.3 mi	12.00 pCi/L	1
Knoxville	20.1 mi	8.00 pCi/L	1
Moline	21.4 mi	5.00 pCi/L	1
Geneseo	22.0 mi	6.00 pCi/L	1
Rock Island	22.7 mi	4.50 pCi/L	2
Monmouth	23.8 mi	8.00 pCi/L	1

Henry County Radon Profile

Henry County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 4 cities in Henry County average 7.00 pCi/L across 4 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Henry County to test, as levels can differ between neighboring homes.

Radon FAQ for Alpha, IL

What EPA Radon Zone is Alpha in?

Alpha and the 61413 zip code are in Henry 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.

Why are radon readings shown from areas near Alpha?

No homeowner radon tests have been submitted for Alpha yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Henry County average—are the best available indicator of local conditions until Alpha homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Alpha?

Radon mitigation in Alpha 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 Alpha?

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.