Rock Island, TX Radon Levels
Check local Rock Island radon levels and find certified testing and mitigation professionals to keep your home safe
Rock Island, TX Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Colorado County, TX
Zip Code
77470
Situated in Colorado County in southeastern Texas, Rock Island falls within EPA Zone 3, suggesting lower radon potential typical of Gulf Coastal Plain geology. However, testing data for the 77470 zip code remains limited, making professional assessment valuable for homeowners seeking comprehensive knowledge of their indoor air quality. The area's clay soils and sedimentary bedrock generally produce modest radon levels, though individual home testing provides the most reliable results.
Rock Island, 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 Rock Island?
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Radon FAQ for Rock Island, TX
What EPA Radon Zone is Rock Island in?
Rock Island and the 77470 zip code are in Colorado 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 Rock Island?
Radon mitigation in Rock Island 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 Rock Island?
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 |