Jill can find here three jars of Gun Powder A and Gun Powder B for each. If they aren't present here, than their location is Facility Rest Room. There are some divices in that room: the device for checking the water quality and the ultraviolet rays device. First device is needed for checking the Water Sample and releasing the lock of the Treatment Room Access. The ultraviolet device is needed for adding the radiating code to the Facility Key that can open the locker in the basement of the facility after that.