2015-10-272015-10-272015-07-12ICES-2015-073http://hdl.handle.net/2346/64360Bellevue, WashingtonLayne Carter, NASA Marshall Space Flight Center, USAJennifer Pruitt, NASA Marshall Space Flight Center, USAChristopher A. Brown, Lockheed Martin Corporation, USARyan Schaezler, The Boeing Company, USALyndsey Bankers, The Boeing Company, USAThe 45th International Conference on Environmental Systems was held in Bellevue, Washington, USA on 12 July 2015 through 16 July 2015.Water management on ISS is responsible for the provision of water to the crew for drinking water, food preparation, and hygiene, to the Oxygen Generation System (OGS) for oxygen production via electrolysis, to the Waste & Hygiene Compartment (WHC) for flush water, and for experiments on ISS. This paper summarizes water management activities on the ISS US Segment, and provides a status of the performance and issues related to the operation of the Water Processor Assembly (WPA) and Urine Processor Assembly (UPA). This paper summarizes the on-orbit status as of May 2015 and describes the technical challenges encountered and lessons learned over the past two years.application/pdfengPresentation