Patch of Elemental Water
Found in Azshara.
Azshara
Item Count Chance 
Elemental Water1-3 40.0% 
Essence of Water1 30.0% 
Globe of Water1-2 30.0% Zone Spawns Coordinates Azshara 7 54.6, 39.0·55.6, 51.1·54.8, 38.8·60.1, 39.7·66.3, 68.5·74.6, 72.6·79.2, 54.4