[WayneS]

Raw water from a bored well with a grouted casing installed all the way to bedrock and a pitless adaptor or other type of sealed cap, is usually safe to drink.

Any water from a river, or from a source under the direct influence of surface water, is usually not.

There are, of course, exceptions to both of the above scenarios, but I would never purchase "raw water" in bottles from anyone.

[NorthMountain]

Good point. I don’t trust ANY surface water.