>>64178653
I think I had the same thing happen to my home. Either way, testings done by a home inspector probably won't be too reliable. Radon fluctuates throughout the day, season and based off weather conditions. That number I posted doesn't happen all that often, but, it was seeping from unfinished rooms, and it was occurring more than anyone would prefer. Radon detectors cost nothing and they run constantly in the background, so I think everyone with a basement should have one.