Westborough, MA Radon Levels
Check local Westborough radon levels and find certified testing and mitigation professionals to keep your home safe
Westborough, MA Radon Facts
Part of Worcester County in the Worcester Metro area, Westborough reports an average radon level of 6.0 pCi/L, which exceeds EPA recommendations. This central Massachusetts community sits in an area where granite bedrock and glacial till create favorable conditions for radon production. Homes in zip code 01581, particularly those with full basement foundations common throughout New England, should consider radon mitigation given these elevated readings.
Based on 3 user-submitted radon tests for homes in Westborough, MA. The EPA recommends taking action at or above 4.0 pCi/L.
Westborough, MA Radon Mitigation
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Westborough, MA Radon Levels
User-submitted radon test readings from homes in the Westborough area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 7 pCi/L | Westborough, MA | 21-50 Years | Full Basement |
| 8 pCi/L | Westborough, MA | 21-50 Years | Partial Basement |
| 4 pCi/L | Westborough, MA | 21-50 Years | Full Basement |
Have a radon test result for Westborough? Submit your reading to help other homeowners.
Radon Readings Near Westborough, MA
Compare radon levels in Westborough with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Northborough | 3.8 mi | 6.00 pCi/L | 2 |
| Shrewsbury | 5.4 mi | 10.00 pCi/L | 2 |
| Hopkinton | 5.6 mi | 9.33 pCi/L | 3 |
| Grafton | 5.9 mi | 11.00 pCi/L | 1 |
| Upton | 6.4 mi | 7.00 pCi/L | 1 |
| Marlborough | 6.9 mi | 13.50 pCi/L | 2 |
| South Grafton | 7.4 mi | 13.00 pCi/L | 1 |
| Ashland | 8.2 mi | 5.33 pCi/L | 3 |
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.