radon mitigation installation 2

https://theradonwatertestingindex.dovetailscope.com/posts/why-radon-water-testing-matters-for-well-owners-in-pennsylvania

When my uncle found radon levels twice the safe limit in his basement, we hired a crew to install a mitigation system. They drilled through the concrete slab, sealed cracks, and ran a PVC pipe with a quiet fan that vents gas above the roofline. Now his test results are lower than the outdoor air.