Sub Slab Depressurization York Salt

When I first moved into my 1950s ranch home in York County, I noticed a musty smell in the basement after heavy rains. A friend mentioned radon, but I brushed it off. Then a neighbor tested her home and found levels above the EPA action limit of 4 pCi/L. That got my attention. I called a local radon mitigation company to run a radon test, and the results came back at 5.8 pCi/L. That is when I learned about sub-slab depressurization, the gold standard for radon abatement in P