[rsj_hn]

> Wells generally tap flowing water even if it’s simply not obvious that’s what’s going on. Basically, the ground can only hold so much water and it normally absorbs excess from rain which eventually flows into streams etc.

This was news to me, thank you. Do you have a source for further reading?

[zdkl]

This ought to be a decent starting point for vocabulary and mechanisms: https://en.wikipedia.org/wiki/Aquifer