Powell, TN Radon Mitigation and Testing

Q: What EPA Radon Zone is Powell in?

Powell is in Knox County, EPA Zone 1.

Q: How much does radon mitigation cost in Powell?

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

Knox County

EPA Zone 1

Situated in Knox County within the Knoxville Metro area, Powell lies in Tennessee's Ridge and Valley region where limestone and shale formations create high radon potential. The community's location near the Clinch River and its underlying karst geology contribute to conditions favorable for radon accumulation. Testing data for zip code 37849 is currently limited, but the geological setting strongly suggests residents should test their homes for radon.

Powell, TN Radon Mitigation

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

Powell, TN Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Powell Radon Facts

Key details about the radon risk profile for Powell and the 37849 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Knox County, TN

Zip Code

37849

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Powell and the 37849 zip code are located in Knox County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Powell, TN

What EPA Radon Zone is Powell in?

Powell and the 37849 zip code are in Knox 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.

How much does radon mitigation cost in Powell?

Radon mitigation in Powell 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 Powell?

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.

Most Active Radon Markets in Tennessee

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Elizabethton	7.33 pCi/L	3
Cleveland	5.33 pCi/L	3
Johnson City	4.33 pCi/L	3
Maryville	10.50 pCi/L	2
Columbia	8.50 pCi/L	2
Bristol	6.50 pCi/L	2
Chattanooga	5.00 pCi/L	2
Clarksville	20.00 pCi/L	1
Kingsport	5.00 pCi/L	1
Knoxville	4.00 pCi/L	1
Greeneville	No submissions	0
Murfreesboro	No submissions	0