Big Rock, TN Radon Mitigation and Testing

Q: What EPA Radon Zone is Big Rock in?

Big Rock is in Stewart County, EPA Zone 2.

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

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

Stewart County

EPA Zone 2

Located in Stewart County within the Clarksville Metro area, Big Rock sits on Tennessee's Highland Rim where limestone bedrock and residual soils create variable radon conditions across zip code 37023. While testing data isn't currently available for this community, the area's karst geology can produce unexpected radon levels depending on local soil conditions and construction details. Homeowners should consider radon testing, particularly in homes with basements or crawl spaces where gas accumulation is more likely.

Big Rock, TN Radon Mitigation

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

Big Rock, TN Radon Testing

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

Big Rock Radon Facts

Key details about the radon risk profile for Big Rock and the 37023 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Stewart County, TN

Zip Code

37023

Predicted Screening Level

2–4 pCi/L (Zone 2)

Big Rock and the 37023 zip code are located in Stewart County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Big Rock, TN

What EPA Radon Zone is Big Rock in?

Big Rock and the 37023 zip code are in Stewart 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.

How much does radon mitigation cost in Big Rock?

Radon mitigation in Big Rock 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 Big Rock?

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