Hi Dennis, I totally agree! It would seem to me that since radon comes from rocks (in a nutshell) and my friends and many, many others they know have had radon levels rise above the 4. level it would signal changes and/or movement in those rocks they are sitting on. In looking at the EPA maps, Ohio is not typically an area with levels above 4.0. Couple that with eq activity over the past year or so, along with wells drying up, and it should signal that something is up. I don't understand why a blind eye is turned to it. My friends are meeting with gov't stonewalling on it. Not only that, it is costing them mega bucks to try to alleviate the problem from their home. Let alone the water. Lucinda