Is the Whole Plain of Jordan Well Watered?

Abram and lot had to separate because they were in different parts of the city. Abram said, "I pray thee between me and thee, and between my herdsmen and thy herdmen" So that's an intimation of eden, right? Because you remember eden means well watered place before the lord destroyed sodom and gomorah. You get foreshadowin here again, right?...