Rock Island, TN Radon Levels

Q: What EPA Radon Zone is Rock Island in?

Rock Island is in Warren County, EPA Zone 2.

Q: How much does radon mitigation cost in Rock Island?

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

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

Rock Island, TN Radon Facts

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

County Warren County, TN

Zip Code 38581

Located in Warren County in central Tennessee, Rock Island sits within EPA Zone 2, indicating moderate radon potential from the region's limestone and shale geology. Testing data for the 38581 zip code area is currently limited, making individual radon testing important for homeowners. The area's karst topography and mixed bedrock formations can create variable radon conditions that require site-specific assessment.

6.50

pCi/L area average

Above EPA Action Level

Warren County average: 6.50 pCi/L, based on 2 user-submitted tests across 1 city in the county. No homeowner readings have been submitted for Rock Island 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+

Rock Island, 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 Rock Island, TN

No homeowner tests have been submitted for Rock Island 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
Mcminnville	7.7 mi	6.50 pCi/L	2
Sparta	18.2 mi	12.00 pCi/L	1
Buffalo Valley	29.1 mi	18.00 pCi/L	1
Dunlap	30.9 mi	14.00 pCi/L	1
Cookeville	31.7 mi	4.00 pCi/L	1
Gordonsville	34.0 mi	18.00 pCi/L	1
Crossville	39.6 mi	4.50 pCi/L	2
Lebanon	43.5 mi	5.00 pCi/L	1

Warren County Radon Profile

The soils and bedrock of Warren County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 1 city in Warren County average 6.50 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 Warren County to test, as levels can differ between neighboring homes.

Radon FAQ for Rock Island, TN

What EPA Radon Zone is Rock Island in?

Rock Island and the 38581 zip code are in Warren 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 Rock Island?

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

Radon mitigation in Rock Island 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 Rock Island?

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.