Diana, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is Diana in?

Diana is in Upshur County, EPA Zone 3.

Q: How much does radon mitigation cost in Diana?

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

Upshur County

EPA Zone 3

Small Diana in Upshur County sits within the Longview Metro area atop East Texas's Cretaceous clay and sandstone formations. This zip code 75640 community features predominantly single-story homes built on pier-and-beam or slab foundations, typical of the region's rural residential construction. Radon testing data remains limited for this area, so homeowners should consider professional testing to establish baseline readings for their specific properties.

Diana, TX Radon Mitigation

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

Diana, TX Radon Testing

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

Diana Radon Facts

Key details about the radon risk profile for Diana and the 75640 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Upshur County, TX

Zip Code

75640

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Diana and the 75640 zip code are located in Upshur 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 Diana, TX

What EPA Radon Zone is Diana in?

Diana and the 75640 zip code are in Upshur 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 Diana?

Radon mitigation in Diana 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 Diana?

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 Texas

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

City	Avg User Radon Level	Submissions
Lubbock	12.67 pCi/L	9
San Antonio	6.57 pCi/L	7
Austin	6.14 pCi/L	7
Dallas	8.00 pCi/L	5
Abilene	4.50 pCi/L	2
Houston	3.50 pCi/L	2
Plano	6.00 pCi/L	1
Frisco	3.00 pCi/L	1
Nacogdoches	No submissions	0