Williamsport, TN Radon Levels

Q: What EPA Radon Zone is Williamsport in?

Williamsport is in Maury County, EPA Zone 1.

Q: How much does radon mitigation cost in Williamsport?

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

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

Williamsport, TN Radon Facts

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

County Maury County, TN

Zip Code 38487

Located in Maury County within the Nashville Metro area, Williamsport sits atop Tennessee's limestone-rich geology that can contribute to radon accumulation. Testing data for the 38487 zip code area is currently insufficient, making individual home assessment essential. The region's mix of historic farmhouses and newer construction both require testing, as radon levels can vary significantly based on foundation type and local geology.

8.50

pCi/L area average

Above EPA Action Level

Maury County average: 8.50 pCi/L, based on 2 user-submitted tests across 1 city in the county. No homeowner readings have been submitted for Williamsport 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+

Williamsport, TN 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 Williamsport, TN

No homeowner tests have been submitted for Williamsport 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
Columbia	10.8 mi	8.50 pCi/L	2
College Grove	28.3 mi	3.00 pCi/L	1
Franklin	29.1 mi	5.00 pCi/L	1
Pegram	33.8 mi	2.00 pCi/L	1
Brentwood	34.7 mi	8.50 pCi/L	2
Nashville	42.3 mi	7.00 pCi/L	1
Dellrose	43.3 mi	10.00 pCi/L	1
Shelbyville	44.4 mi	10.50 pCi/L	2

Maury County Radon Profile

Maury 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 1 city in Maury County average 8.50 pCi/L across 2 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 Maury County to test, as levels can differ between neighboring homes.

Radon FAQ for Williamsport, TN

What EPA Radon Zone is Williamsport in?

Williamsport and the 38487 zip code are in Maury 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 Williamsport?

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

Radon mitigation in Williamsport 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 Williamsport?

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.