South Grafton, MA Radon Levels
Check local South Grafton radon levels and find certified testing and mitigation professionals to keep your home safe
South Grafton, MA Radon Facts
Located in central Worcester County, South Grafton recorded an average radon level of 13.0 pCi/L based on available testing, which significantly exceeds the EPA action level of 4.0 pCi/L. This Worcester Metro community features New England's typical housing mix of historic and modern homes, many with full basements where radon can accumulate. Given the elevated reading in zip code 01560 and the area's granite bedrock geology, all South Grafton residents should prioritize professional radon testing and mitigation if necessary.
Based on 1 user-submitted radon test for homes in South Grafton, MA. The EPA recommends taking action at or above 4.0 pCi/L.
South Grafton, MA Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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South Grafton, MA Radon Levels
User-submitted radon test readings from homes in the South Grafton area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 13 pCi/L | South Grafton, MA | 0-20 Years | Full Basement |
Have a radon test result for South Grafton? Submit your reading to help other homeowners.
Radon Readings Near South Grafton, MA
Compare radon levels in South Grafton with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Grafton | 1.7 mi | 11.00 pCi/L | 1 |
| Millbury | 3.9 mi | 4.00 pCi/L | 1 |
| Whitinsville | 4.4 mi | 7.00 pCi/L | 1 |
| Upton | 4.6 mi | 7.00 pCi/L | 1 |
| Westborough | 7.4 mi | 6.00 pCi/L | 2 |
| Shrewsbury | 7.7 mi | 10.00 pCi/L | 2 |
| Uxbridge | 7.7 mi | 16.00 pCi/L | 1 |
| Auburn | 7.8 mi | 7.00 pCi/L | 1 |
Worcester County Radon Profile
The bedrock and soils beneath Worcester County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 28 cities in Worcester County average 9.12 pCi/L across 41 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 Worcester County.