Imperial, MO Radon Levels
Check local Imperial radon levels and find certified testing and mitigation professionals to keep your home safe
Imperial, MO Radon Facts
Part of the St. Louis Metro area in Jefferson County, Imperial sits on Ozark plateau geology with limestone and dolomite bedrock that contributes to elevated radon potential. Testing data shows homes in zip code 63052 average 13.0 pCi/L, which significantly exceeds the EPA action level of 4.0 pCi/L. The area's karst topography and underlying limestone formations create ideal conditions for radon production and migration into basements and lower levels.
Based on 1 user-submitted radon test for homes in Imperial, MO. The EPA recommends taking action at or above 4.0 pCi/L.
Imperial, MO Radon Mitigation
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Imperial, MO Radon Levels
User-submitted radon test readings from homes in the Imperial area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 13 pCi/L | Imperial, MO | 0-20 Years | Full Basement |
Have a radon test result for Imperial? Submit your reading to help other homeowners.
Radon Readings Near Imperial, MO
Compare radon levels in Imperial with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Arnold | 3.2 mi | 10.50 pCi/L | 2 |
| House Springs | 6.5 mi | 7.00 pCi/L | 1 |
| Fenton | 6.7 mi | 16.00 pCi/L | 2 |
| Ballwin | 14.0 mi | 4.00 pCi/L | 1 |
| Festus | 15.1 mi | 5.00 pCi/L | 2 |
| Chesterfield | 17.8 mi | 5.00 pCi/L | 1 |
| De Soto | 20.8 mi | 11.00 pCi/L | 1 |
| Labadie | 25.0 mi | 4.00 pCi/L | 1 |
Jefferson County Radon Profile
Jefferson County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. Homeowner-submitted tests from 5 cities in Jefferson County average 8.86 pCi/L across 7 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Jefferson County.