V. 1. Natural attenuation of petroleum hydrocarbons, air sparging and related technologies, process monitoring of petroleum biodegradation in soil, bioslurping, cold region applications, bioventing applications and extensions, integrated approaches to bioremediation, biopiles -- v. 2. Explosives and nitroaromatics, composting of contaminated soils and sludges, natural attenuation of recalcitrant compounds, landfarming, polycyclic aromatic hydrocarbons, pesticides and herbicides, field methods and process monitoring, PCBs and chlorinated aromatics, fungal technologies, surfactant-aided bioremediation -- v. 3. Anaerobic degradation of chlorinated solvents, aerobic degradation of chlorinated solvents, natural attenuation of chlorinated solvents, anaerobic/aerobic processes for chlorinated solvent degradation, remediation technologies development forum, phytoremediation, inorganics, manufactured gas plant site remediation. V. 4. Toxicity and geochemical considerations, genetically engineered microorganisms, microbial considerations, emerging technologies, in situ biobarriers, nutrient delivery and transport in porous media, regulatory, economic, and public perception issues, crude oil bioremediation and marine environmental considerations, chemical and physical processes in support of bioremediation, bioaugmentation, microbial transport in porous media -- v. 5. Alternative electron acceptors, bioreactors, bioslurry reactors, vapor-phase bioreactors, biological treatment of wastewater, biological treatment of landfill leachate, molecular monitoring of bioremediation potential, environmental statistics for site remediation, bench-scale to full-scale interpretations, in situ and on-site case histories, low-permeability soils applications, modeling, bioavailability considerations.