This IMA Volume in Mathematics and its Applications RESOURCE RECOVERY, CONFINEMENT, AND REMEDIATION OF ENVIRONMENTAL HAZARDS contains papers presented at two successful one-week workshops: Confine­ ment and Remediation of Environmental Hazards held on January 15-19, 2000 and Resource Recovery, February 9-13, 2000. Both workshops were integral parts of the IMA annual program on Mathematics in Reactive Flow and Transport Phenomena, 1999-2000. We would like to thank John Chadam (University of Pittsburgh), Al Cunningham (Montana State Uni­ versity), Richard E. Ewing (Texas A&M University), Peter Ortoleva (In­ diana University), and Mary Fanett Wheeler (TICAM, The University of Texas at Austin) for their excellent work as organizers of the meetings and for editing the proceedings. We take this opportunity to thank the National Science Foundation for their support of the IMA. Series Editors Douglas N. Arnold, Director of the IMA Fadil Santosa, Deputy Director of the IMA v PREFACE Advances in resource recovery, and confinement/remediation of envi­ ronmental hazards requires a coordinated, interdisciplinary effort involving mathematicians, scientists and engineers. The intent of this collection of papers is to summarize recent theoretical, computational, and experimen­ tal advances in the theory of phenomena in porous media, with the intent to identify similarities and differences concerning applications related to both resource recovery and confinement and remediation of environmental hazards.

Resource Recovery.- Advanced techniques and algorithms for reservoir simulation, I: frontier issues in managing oil and gas production.- Advanced techniques and algorithms for reservoir simulation, II: the multiblock approach in the integrated parallel accurate reservoir simulator (IPARS).- Advanced techniques and algorithms for reservoir simulation, III: multiphysics coupling for two phase flow in degenerate conditions.- Advanced techniques and algorithms for reservoir simulation, IV: multiblock solvers and preconditioners.- Upscaling of biological processes and multiphase flow in highly heterogeneous media.- Foamy oil flow in porous media.- Diffusion in deformable media.- Fractures, faults, and the nonlinear RTM dynamics of sedimentary basins.- Probability functionals, homogenization and comprehensive reservoir simulators.- Confinement and Remediation of Environmental Hazards.- Diffusion-limited contamination and decontamination in a layered aquitard: forensic and predictive analysis of field data.- Modeling of biofilm growth in porous media at the pore scale and up-scaling.- Coal tar contamination: Bioremediation and bioavailability.- The local discontinuous Galerkin method for advection-diffusion equations arising in groundwater and surface water applications.- Compaction and diagenesis.- Numerical simulation of freshwater, salt water and methane interaction processes in a coastal aquifer.- A preconditioning technique as an upscaling procedure.- List of workshop participants.