Bachelor of Science, Seoul National University, 1984. Master of Science, Seoul National University, 1986. Doctor of Philosophy, Purdue University, 1992.
Postdoctoral associate Purdue University, West Lafayette, Indiana, 1992—1993. Consultant International Business Machines Corporation-Purdue Water Cycle Modeling Program, 1993. Assistant professor Seoul National University, 1993—1998, associate professor, 1998—2004, professor, since 2004.
Chief Executive Officer GeoGreen21 Inc., Seoul, 1999—2002. Associate dean Seoul National U, 2004—2006. Vice president Korean Society Soil and Groundwater Env.
Member national groundwater advisory committee Korean Government, Seoul. Member of American Society of Civil Engineers, American Water Resources Association, American Society Agronomy, National Ground Water Association, American Geophysical Union.
Married Mi-Jung Park, August 14, 1994. Children: Min-Ju, Young-House.