International/National Committees
- CUAHSI (Consortium of Universities for the Advancement of Hydrologic Sciences, Inc.), K-State Representative, 2004-present.
- UCOWR (University Council On Water Resources), University member, 2005-present.
- American Geophysical Union, Groundwater Technical Committee, member, Fall 1998 - present.
- MODFLOW and More 2006: Managing Ground-Water Systems, Golden, Colorado, Technical Committee, May 21-24, 2006.
- 5th International Conference on the Analytic Element Method, Kansas State University, Chair, Organizing Committee, May 15-17, 2006.
- 4th International Conference on the Analytic Element Method, Saint-Etienne, France, Scientific Committee, November 2003.
- MODFLOW and More 2003: Understanding through Modeling, Golden, Colorado, Technical Committee, September 2003.
- MODFLOW 2001 and other Modeling Odysseys, Golden, Colorado, Technical Committee, September 2001.
- 3rd International Conference on the Analytic Element Method in modeling groundwater flow, Brainerd, Minnesota, Technical Committee, April 17-19, 2000.
- Open AEM software development, Consortium Member (sponsors: EPA & RIZA, The Netherlands), 1998 - 2001.
