Cohasset, MA Radon Mitigation and Testing
This coastal community in Norfolk County shows significantly elevated radon levels, with testing data revealing an average of 11.5 pCi/L - nearly triple the EPA's 4.0 pCi/L action threshold. Located within the Boston Metro area (02025), Cohasset's granite bedrock and glacial till deposits create conditions highly favorable for radon gas production and accumulation. With readings ranging from 11.0 to 12.0 pCi/L across tested properties, homeowners should prioritize immediate radon testing and strongly consider professional mitigation systems to address these concerning levels.
Based on 2 user-submitted radon tests for homes in Cohasset, MA. The EPA recommends taking action at or above 4.0 pCi/L.
Cohasset, MA Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Cohasset, MA Radon Testing
Finding qualified radon testing professionals is the first step toward protecting your home.
Cohasset, Massachusetts Radon Levels
User-submitted radon test readings from homes in the Cohasset area.
| Radon Level | City | Home Age | Foundation | Submitted |
|---|---|---|---|---|
| 12 pCi/L | Cohasset, MA | 0-20 Years | Full Basement | May 2023 |
| 11 pCi/L | Cohasset, MA | 0-20 Years | Full Basement | Dec 2020 |
Have a radon test result for Cohasset? Submit your reading to help other homeowners.
Cohasset Radon Facts
Key details about the radon risk profile for Cohasset and the 02025 zip code area.
Cohasset and the 02025 zip code are located in Norfolk County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.
Radon FAQ for Cohasset, MA
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Most Active Radon Markets in Massachusetts
Cities with the most user-submitted radon test data in the state.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Littleton | 9.40 pCi/L | 5 |
| Gloucester | 8.40 pCi/L | 5 |
| Florence | 7.40 pCi/L | 5 |
| Douglas | 12.00 pCi/L | 4 |
| Weymouth | 8.50 pCi/L | 4 |
| Mashpee | 5.00 pCi/L | 4 |
| Natick | 5.00 pCi/L | 4 |
| Worcester | 17.67 pCi/L | 3 |
| Attleboro | 10.00 pCi/L | 3 |
| Stoneham | 9.67 pCi/L | 3 |
| Hopkinton | 9.33 pCi/L | 3 |
| Medford | 8.00 pCi/L | 3 |
| Boxford | 6.67 pCi/L | 3 |
| Reading | 5.67 pCi/L | 3 |
| Haverhill | 5.00 pCi/L | 3 |
| Melrose | 5.00 pCi/L | 3 |
| Somerville | 4.33 pCi/L | 3 |
| Woburn | 19.00 pCi/L | 2 |
| Marlborough | 13.50 pCi/L | 2 |
| Cohasset | 11.50 pCi/L | 2 |