This is a soft X-ray beamline endstation built by our group in collaboration with the X-ray instrumentation researchers (Dr. Zahid Hussain) at the Advanced Light Source, Berkeley. This endstation facilitates the examination of the 1s spectroscopy of light elements in aqueous solutions and at the interfaces. Currently X-ray absorption spectroscopy can be conducted using this chamber. In near future this chamber will be used to conduct the X-ray emission spectroscopy of organic molecules and water in aqueous solutions and at the interfaces. This study is in collaboration with Dr. Anders Nilsson at the Uppsala University & Stanford Synchrotron Radiation Laboratory. Currently we are using SXEER to examine the H-bonding networks in liquid water and the functional group chemistry of simple organic acids in aqueous solutions. When not in use, this instrumentation is stationed at the Advanced Light Source. The fabrication of this instrument is funded by the Laboratory Directed Research & Development funds of the Lawrence Berkeley National Laboratory, and a partial support for the X-ray emission spectrometer is obtained from the Chemical and Geosciences part of the Basic Energy Sciences (DOE).