Clay, KY Radon Levels

Q: What EPA Radon Zone is Clay in?

Clay is in Webster County, EPA Zone 2.

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

No homeowner radon tests have been submitted for Clay yet, so readings from the closest cities and the Webster 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 Clay?

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

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

Clay, KY Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Webster County, KY

Zip Code 42404

Nestled in Webster County in western Kentucky, Clay sits within EPA Zone 2 where radon testing data remains limited. The area's geological foundation of Pennsylvanian sandstone and shale typically produces moderate radon levels, though individual homes can vary significantly. Given the lack of local testing data in zip code 42404, homeowners are strongly encouraged to conduct radon testing to establish baseline readings for their properties.

6.25

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.25 pCi/L, based on 4 tests from 3 nearby cities. No readings have been submitted for Clay yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Clay, KY 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 Clay, KY

No homeowner tests have been submitted for Clay 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
Eddyville	30.6 mi	9.00 pCi/L	1
Utica	43.8 mi	6.00 pCi/L	1
Owensboro	43.8 mi	5.00 pCi/L	2

Webster County Radon Profile

EPA mapping assigns Webster County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Direct test data for Webster County remains limited, so the closest neighboring readings are used here to represent the radon conditions homeowners are likely to encounter. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Webster County home regardless of zone or a neighbor's results.

Radon FAQ for Clay, KY

What EPA Radon Zone is Clay in?

Clay and the 42404 zip code are in Webster County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

Why are radon readings shown from areas near Clay?

No homeowner radon tests have been submitted for Clay yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Webster County average—are the best available indicator of local conditions until Clay 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 Clay?

Radon mitigation in Clay 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 Clay?

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.