Tivoli, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is Tivoli in?

Tivoli is in Refugio County, EPA Zone 3.

Q: How much does radon mitigation cost in Tivoli?

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

Refugio County

EPA Zone 3

Located in Refugio County in South Texas, Tivoli (zip code 77990) sits on Gulf Coastal Plain sediments that typically result in lower radon concentrations. Testing data for this community near the coast remains limited, though the area's predominantly slab-on-grade construction and sandy soils generally create less favorable conditions for radon accumulation than areas with basements or clay soils.

Tivoli, TX Radon Mitigation

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

Tivoli, TX Radon Testing

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

Tivoli Radon Facts

Key details about the radon risk profile for Tivoli and the 77990 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Refugio County, TX

Zip Code

77990

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Tivoli and the 77990 zip code are located in Refugio 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 Tivoli, TX

What EPA Radon Zone is Tivoli in?

Tivoli and the 77990 zip code are in Refugio 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 Tivoli?

Radon mitigation in Tivoli 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 Tivoli?

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