Zephyr, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is Zephyr in?

Zephyr is in Brown County, EPA Zone 3.

Q: How much does radon mitigation cost in Zephyr?

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

Brown County

EPA Zone 3

Small Zephyr in Brown County sits within the Texas Hill Country region on Cretaceous limestone formations. The 76890 area's EPA Zone 3 designation indicates low radon potential, consistent with much of central Texas geology. While testing data remains limited for this rural community, the underlying limestone bedrock and typical Texas construction patterns generally result in lower radon risks.

Zephyr, TX Radon Mitigation

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

Zephyr, TX Radon Testing

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

Zephyr Radon Facts

Key details about the radon risk profile for Zephyr and the 76890 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Brown County, TX

Zip Code

76890

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Zephyr and the 76890 zip code are located in Brown 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 Zephyr, TX

What EPA Radon Zone is Zephyr in?

Zephyr and the 76890 zip code are in Brown 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 Zephyr?

Radon mitigation in Zephyr 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 Zephyr?

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