Unable to answer "Is the water potable here?" – Kane Springs (Spring) – https://osm.org/node/3470224819 via StreetComplete 58.0:

If there is a natural spring here, it may be contained by what appears to be an underground pumping station. Regardless, there is no surface water and no signage.

Attached photo(s):
https://westnordost.de/p/216876.jpg