...yes we have winer 6 months here in northern ontario too and just saw on news they are concerned about the salt getting into our lakes... duh!!! where did they think the salt would end up? for sure, the soil itself filters water so your well should be good... we have quite sandy soil here around the lake so not sure how good it is to filter, but I think many of us take it for granted that water is safe from whatever source, sometimes not knowing the source! Any time i use water even from municipal supply to wipe my eyes or rinse my mouth i always boil and cool... i have bought Brita jugs but they are supposed to be cleaned out with bleach occasionally - who does that? We think the charcoal filter protects. Well I have hot air vent bedroom floor and for moisture in air put a glass bowl of water on the vent which is flat to the floor... after a few days the water has evaporated but you would not belive the white residue left in the bowl..... also after couple of days our dogs dish of water has a sort of slime in it, but that could be from bacteria or whatever from dogs mouth when drinking.... i am not driving myself crazy over all this but i take precautions at home but what guarantee do i have when visiting a friend (pre covid) or daughters, or even a restaurant. none.