Next to nothing is known about this entity. It can be summoned by Water Mages of the Hand Brotherhood and was involved in at least one experiment before the TG mission The Mage Towers, Archmage Jabu Ibn Lani had attempted an experiment using water elementals in the Tower of Water. Elemental "wards" were used in some way to contain it, but were not strong enough to prevent the flooding of the tower. The key to this tower was lost during the calamity and similar experiments were forbidden by The Inner Circle.
DromEd contains two object models for the water elemental, but they were never used.