Woodhull, IL Radon Levels

Q: What EPA Radon Zone is Woodhull in?

Woodhull is in Henry County, EPA Zone 1.

Q: How much does radon mitigation cost in Woodhull?

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

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

Woodhull, IL Radon Facts

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

County Henry County, IL

Zip Code 61490

Small Henry County surrounds this rural Illinois community, where glacial till deposits over limestone bedrock create the geological conditions associated with elevated radon potential across the region. Woodhull's housing consists primarily of older farmsteads and rural residential properties with various basement and foundation types. With testing data currently limited, individual home testing is essential for residents to understand their radon exposure levels in this agricultural area.

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 Woodhull 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+

Woodhull, 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 Woodhull, IL

No homeowner tests have been submitted for Woodhull 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	9.2 mi	6.00 pCi/L	1
Orion	13.4 mi	4.00 pCi/L	1
Kewanee	18.9 mi	8.00 pCi/L	1
Knoxville	18.9 mi	8.00 pCi/L	1
Coal Valley	19.7 mi	12.00 pCi/L	1
Geneseo	20.5 mi	6.00 pCi/L	1
Moline	23.9 mi	5.00 pCi/L	1
Annawan	24.2 mi	10.00 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 Woodhull, IL

What EPA Radon Zone is Woodhull in?

Woodhull and the 61490 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 Woodhull?

No homeowner radon tests have been submitted for Woodhull 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 Woodhull 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 Woodhull?

Radon mitigation in Woodhull 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 Woodhull?

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.