Proceedings of sessions at the ASCE National Convention, held in Minneapolis, Minnesota, October 5-8, 1997. Sponsored by the Environmental Engineering Division and the Geo-Institute of ASCE.

This Geotechnical Special Publication (GSP 71) contains 42 papers focusing on the in-situ remediation of the geoenvironment. Progress in the development and implementation of techniques for the remediation of contaminated soil and groundwater continues rapidly. Papers discuss contaminants such as petroleum hydrocarbons, cadmium, hexavalent chromium, gasoline, BTEX, TCE, NAPLs, and various other hazardous wastes.

Topics include:

• permeable reactive barriers,
• soil vapor extraction,
• air sparging,
• containment,
• barrier walls,
• slurry walls,
• vibro-sealing,
• nonaqueous-phase liquids,
• stabilization,
• solidification,
• collection technologies,
• vertical drains,
• filter clogging,
• jet grouting,
• bioremediation,
• electrokinetics,
• radio frequency heating,
• in situ oxidation,
• integrated remedial technologies, and
• case studies.