post-mitigation radon test 5

https://fair-wiki.win/index.php/Why_Radon_Testing_York_County_Matters_for_Your_Home_and_Health

After the radon mitigation system was installed, we scheduled the post-mitigation radon test to make sure it actually worked. The technician placed the samplers in the basement and main living areas, left them for the required 48 hours, and the results came back well below the EPA action level.