From Pathfinder Adventure Path: Gatewalkers, which isn't enabled.

Sacred Geyser

HAZARD 3

Stealth +9 (trained)

Description A geyser of boiling water erupts at any character who attempts to take water from the oasis.

Disable DC 21 Thievery (trained) to concoct a mechanism for indirectly harvesting the water from a safe distance

Sacred Geyser

Trigger A creature dips a vessel or otherwise attempts to remove water from the oasis

Effect A jet of magical boiling water targets the triggering creature and affects all creatures within 5 feet of the target. Creatures caught in the burst take 2d10+13 fire (DC 23 basic Reflex save).

Reset The geyser resets automatically and adapts to previous circumvention, requiring a new check to disable it each time.

Pathfinder Adventure Path: GatewalkersORC