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Development testing of the Space Station Freedom (SSF) Water Recovery and Management Subsystem is being conducted by the Marshall Space Flight Center Environmental Control and Life Support (ECLS) Branch and the Boeing Missiles and Space Division. The testing program is designed to define integrated subsystem performance, one aspect of which is assessing the quality of the waste and product waters. Recent efforts have focused on maximizing the characterization of water contaminants to more fully account for the total organic carbon and ionic conductivity of the various waste and product waters. Total organic carbon accountability improved with the application of new analytical methods for certain classes of water soluble compounds. Methods developed for the detection of aldehydes, glycols, and low-level total organic carbon are discussed.