Grafton, IL Radon Levels
Check local Grafton radon levels and find certified testing and mitigation professionals to keep your home safe
Grafton, IL Radon Facts
Perched along the Illinois River bluffs in Jersey County near the St. Louis Metro area, Grafton has recorded an average radon level of 14.0 pCi/L — significantly exceeding EPA action guidelines. The community's location where Mississippi River valley alluvial deposits meet limestone bluffs creates variable but often elevated radon conditions. Historic homes and businesses built into the limestone bluffs of zip code 62037 may be particularly susceptible to radon infiltration.
Based on 1 user-submitted radon test for homes in Grafton, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Grafton, IL 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 Grafton?
- 100% Free, No-Obligation Quotes
- Matches You with State-Licensed Jersey County Pros
Grafton, IL Radon Levels
User-submitted radon test readings from homes in the Grafton area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 14 pCi/L | grafton, IL | 0-20 Years | Full Basement |
Have a radon test result for Grafton? Submit your reading to help other homeowners.
Radon Readings Near Grafton, IL
Compare radon levels in Grafton with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Jerseyville | 9.8 mi | 3.50 pCi/L | 2 |
| Godfrey | 12.8 mi | 6.00 pCi/L | 1 |
| East Alton | 20.6 mi | 4.00 pCi/L | 1 |
| Granite City | 25.8 mi | 8.00 pCi/L | 1 |
| White Hall | 29.5 mi | 6.00 pCi/L | 1 |
| Glen Carbon | 29.9 mi | 2.50 pCi/L | 2 |
| Maryville | 32.0 mi | 11.00 pCi/L | 1 |
| Collinsville | 32.6 mi | 5.00 pCi/L | 1 |
Jersey County Radon Profile
Jersey County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 2 cities in Jersey County average 7.00 pCi/L across 3 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Jersey County to test, as levels can differ between neighboring homes.