Mitigate / Discussions

Gosh, do I need help w this one. It's a 1820s house with a largely stone foundation and backed against a small mountain. The "root cellar" with mechanicals and a dirt floor is under the living room, the rest is crawl space with dirt floor or slab. The 10x14' cellar has heavy springtime water ingress where the dry stack...

Our home was recently tested for radon and is at 33 Bq/m3, which I understand is relatively low and does not require any remediation. Does that necessarily mean that, by extension, our well water is low in radon as well? We haven't yet tested it, and don't know if we need to. I do know that a high air reading can be th...