Following Gwennog's feedback and my own playtesting the following changes are now playable
Aquifer Feature: Removed
UA: Creates an Oasis under Cities you Found
The way this works is at first it gives Fresh Water and no Yields (City ignores bonus from feature)
But since its a real Oasis you get yields from Aqueduct, Garden (and if you are playing with Tweaks, Hotels), etc.
Graphics seem to work more consistently (at least for me) also
Aghrem:
- Culture from worked Desert increased to 1/2 (from 1/3)
- Oasis bonus lowered to +1 (from +2)

Food,

Gold, and +2

Border Growth Points
Foggara:
- create Fresh Water
- are built on top of (replacing) Mines or Oil Wells
- connect Resources (and give +2

Gold if they do)
- No Two Adjacent
- does not require Desert anymore
- give adjacent Desert +1

Food,

Gold, and +2

Border Growth Points
- give adjacent Farm +1

Culture
- no longer destroyed when Pillaged
Plumed Nomad
- Strength set to Scout+2 (down from +3)