Cowan, TN Radon Mitigation and Testing

Q: What EPA Radon Zone is Cowan in?

Cowan is in Franklin County, EPA Zone 3.

Q: How much does radon mitigation cost in Cowan?

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

Franklin County

EPA Zone 3

Situated in Franklin County in south-central Tennessee, Cowan lies on Cumberland Plateau limestone formations that can contribute to radon accumulation. Testing data for zip code 37318 remains limited, making individual home testing important for residents. The area's combination of older housing stock and geological conditions typical of Tennessee's limestone regions suggests homeowners should consider radon testing.

Cowan, TN Radon Mitigation

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

Cowan, TN Radon Testing

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

Cowan Radon Facts

Key details about the radon risk profile for Cowan and the 37318 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Franklin County, TN

Zip Code

37318

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Cowan and the 37318 zip code are located in Franklin County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Cowan, TN

What EPA Radon Zone is Cowan in?

Cowan and the 37318 zip code are in Franklin County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Cowan?

Radon mitigation in Cowan 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 Cowan?

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