TOUGH Symposium Organizing Committee Lawrence Berkeley National Laboratory Mail Stop 74R316C Berkeley, CA 94720, USA Primary Point of Contact: Helen Prieto, email: HGPrieto@LBL.gov, (510) 486-6696 Curt Oldenburg, Conference Chair Mengsu Hu, Conference Committee Member Helen Prieto, Conference Coordinator Matt Reagan, Conference Committee Member Eric Sonnenthal, Conference Committee Member Yingqi Zhang, Conference Committee Member Contacts Hydrogeology Department, Energy Geosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California Curt Oldenburg, Conference Chair, CMOldenburg@lbl.gov, 510.486.7419 Helen Prieto, Conference Coordinator, HGPrieto@lbl.gov, 510.486.6696