Can't say I'am surprised :(
(On my side still got water on tap)

Since years now I have some rain water tank that I can filter to drink.

Thus with this hole dry weather we experience even here in Brittany (usually wet) I will try to get bigger tanks because when they will cut water with these kind of weather I won't have enough for me, the animals and the garden.

And yes any water should be filtered (tap or natural) because the water cycle poisoning is real !