Dear BNC Users, Tonight there has been a critical failure of the building wide Ultra-Pure water system. As a result there is no Ultra-pure water flow or cleanroom humidity control that requires ultra-water to operate. The cleanroom relative humidity levels are at ~14% with a setpoint of 45%. It is unclear when the ultra-pure water system will be operational. We are waiting for a response for technical support from an outside ultra-pure water engineering firm. We are sorry for the unplanned interruption. Mark Voorhis Building Manager Purdue University Birck Nanotechnology Center Office: (765) 494-3036