Robin Fell, School of Civil Engineering, University o f New South Wales, Sydney, N.S.W., Australia. Charles Gerrard, Golder Associates Pty Ltd, Sydney, N.S.W., Australia. Tony Phillips, Arup Geotechnics Pty Ltd, Sydney, N.S.W., Australia.

• Preface Theme papers: Site investigation and monitoring techniques for contaminated sites and potential waste disposal sites; Analysis of contaminant transport; Regulatory and non-regulatory control of contaminated sites; Remediation of contaminated sites in Australia; Ground modification techniques in waste management; Foundations for reclaimed landfill sites; Design and management of landfills; Seepage and contamination from mine waste. Submitted papers: Use of clay and geomembrane liners as base seals for bauxite residue disposal; Migration of a pollutant through a natural clay liner; Time dependence of solute dispersion in aquifers; The use of liners for the containment and control of pollution - A review; Physical modelling of contaminant transport in the unsaturated zone; Monitoring and operation of internal drainage systems within bauxite residue deposits; Results from geotechnical tests on paper mill waste; Landfills in brickpits - A virtue of necessity? The use of geomembranes in the design of mineral waste storage facilities; Behaviour of pollutants in soils; A rapid screening technique for analysis of Volatile Organic Compounds (VOC’s) in groundwater and soil; Locating leaks in clay liners below bauxite residue deposits; Characterisation of fuel contaminated soil and groundwater in South Australia; The experience of the South Australian Housing Trust with land contamination; Deformation characteristics and design aspects of coal ash structures; Geotechnical applications of fly ash in Hong Kong; Nonreactive chemical transport in structured soil: The potential for centrifugal modelling; Grouting of leaks in clay liners below bauxite residue deposits; Plan for monitoring surface and groundwater quality at waste disposal sites; A systems approach to geosynthetic liners; Washing technology for the decontamination of soil and sediment; An approximate method for the design of tailings dams using sub-aerial deposition; Effect of medium porosity on contaminant transport in porous fractured media; Design and investigation of landfill caps to minimize infiltration; Geotechnical properties relevant to co-disposal of coal washery wastes; Landfill gas investigation at Sydney Park; Contamination issues in rural industries; Industrial waste and geotechnical engineering.