Crystal City, TX Radon Levels
Check local Crystal City radon levels and find certified testing and mitigation professionals to keep your home safe
Crystal City, TX Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Zavala County, TX
Zip Code
78839
Nestled in rural Zavala County in south-central Texas, Crystal City sits within an EPA Zone 3 area characterized by sedimentary formations and caliche deposits. Testing data for zip code 78839 remains sparse, making individual home testing essential for residents. The region's clay soils and limestone substrata can create localized radon accumulation, particularly in homes with concrete slab foundations common to this area.
Crystal City, TX Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Need Radon Mitigation or Testing in Crystal City?
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Radon FAQ for Crystal City, TX
What EPA Radon Zone is Crystal City in?
Crystal City and the 78839 zip code are in Zavala 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 Crystal City?
Radon mitigation in Crystal City 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 Crystal City?
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 in Texas with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Lubbock | 12.70 pCi/L | 10 |
| 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 |