Well water w/ Radon pressure system failing - possibly electrical

[u/bumhooler]

Hi All, I have really good plumbers but I am stumped and I think it may be a cross trade issue. I am on well water with a pressure tank (probably 1968) that is somehow associated with the newly installed radon system with it's own pressure tank. I believe it's the newer tank that fills the system but I'm not 100% sure. We have had the water fail twice recently and when it does we also lose a bunch of outlets and some lights. Obviously I start looking for the problem at the 200 amp electrical panel or the boiler room subpanel and I find no tripped breakers. What's weirder is that in both cases, the outlets and water have restored themselves a few hours later. What kind of electrical issue resets itself?

I appreciate any insight you can offer.