Preface Acknowledgements • Section 1: Investigation, hazard assessment and remediation of existing landfills • A. H. MARSH & A. GARNHAM: Investigation, hazard assessment and remediation of existing landfills • N. G. MOSLEY & F. CROZIER: Application ofa geomembrane leak location survey at a UK waste disposal facility • F. G. BELL, A. J. SILLITO & C. A. JERMY: Landfills and associated leachate in the greater Durban area: two case histories • MAHMOUD & R. S. MORLEY: Engineering properties of two types of pulverized fuel ash • A. R. GRIFFIN: Engineering properties and disposal of gypsum waste • R. P. BEA VEN: Geotechnical and hydro geological properties of wastes • B. J. LLOYD: Avian botulism associated with a waste disposal site • K. MCSHANE & B. J. GREGORY: Remedial containment measures for a peat bog landfill site • B. T. A. J. DEGEN, I. K. DEIBEL & P. M. MAURENBRECHER: Survey and containment of contaminated underwater sediments • E. N. BROMHEAD, L. COPPOLA & H. M. RENDELL: Stabilization of an urban refuse dump and its planned extension near Ancona, Marche, Italy • J. M. REYNOLDS & D. I. TAYLOR: Use of geophysical surveys during the planning, construction and remediation of landifills • A. AL MASMOUM & S. P. BENTLEY: Application of the STRA T A3 visualization software to the investigation of landfill sites • R. A. FORTH & D. BEAUMONT: Coal carbonization in northeast England: investigating and cleaning-up an historical legacy • A. B. DI STEFANO: Settlement of Beddingham Landfill • Section 2: Consideration for the design of new landfills • P. LYLE, P. J. GIBSON, A. R. WOOD SIDE & W. D. H. WOODWARD: Pre-design evaluation of disused quarries as landfill sites • D. R. V. JONES: Waste disposal in steep-sided quarries: geomembrane-based barrier systems • D. C. MANN: Geological and other influences on the design of containment systems in hard rock quarries • A. FOYO & C. TOMILLO: Permeability considerations about rock foundation on waste disposal • M. TOWNEND & R. ALDRIDGE: A groundwater trace study using a fluorescent dye A. J. CROXFORD: Ground investigation and design for a landfill at Seater, Caithness • J. H. DIXON & S. P. BENTLEY: Stability considerations in landfilllining design • M. I. BRIGHT, S. F. THORNTON, D. N. LERNER & J. H. TELLAM: Laboratory investigations into designed high-attenuation landfillliners • S. J. MOLLARD, C. E. JEFFORD, M. G. STAFF & G. R. J. BROWNING: Geomembrane landfillliners in the real world • R. G. CLARK & G. DAVIES: The construction of clay liners for landfills • Section 3: Geotechnics of underground repositories • S. T. HORSEMAN & G. VOLCKAERT: Disposal of radioactive wastes in argillaceous formations • T. G. BALL, A. J. BESWICK & J. A. SCARROW: Geotechnical investigations for a deep radioactive waste repository: drilling • R. CHRISTIANS SON, J. A. SCARROW, A. P. WHITTLESTONE & A. WIKMAN: • Geotechnical investigations for a deep radioactive waste repository: in situ stress measurements • G. RAWLINGS, N. BARTON, F. L0SET, G. VIK, R. K. BHASIN, A. SMALLWOOD & N. DAVIES: Geotechnical core and rock mass characterization for the UK radioactive waste repository design • R. THOMAS, S. W. REES, B. KJARTANSON, A. W. L. WAN & N. A. CHANDLER: Modelling in situ water uptake in a bentonite-sand barrier • R. P. YOUNG: Application of induced seismicity to radioactive waste management programmes • J. ZHAO: Prediction of groundwater flow around an underground waste repository • R. CHRISTIANSON & R. JERNLAS: Storage of hazardous waste at shallow depth C. P. NATHANAIL: A geotechnical data management system for radioactive waste repository feasibility investigations • Section 4: Containment properties of natural clays • E. J. MURRA Y, D. W. RIX & R. D. HUMPHREY: Evaluation of clays as linings to landfill • J. ARCH, E. STEPHENSON & A. MALTMAN: Factors affecting the containment properties of natural clays P. A. CLAISSE & H. P. UNSWORTH: The engineering of a cementitious barrier • M. C. R. DAVIES, L. M. R. RAILTON & K. P. WILLIAMS: A model for adsorption of organic species by clays and commerciallandfill barrier materials • A. M. O. MOHAMED & R. N. YONG: Diffusion of contaminants through a clay barrier under acidic condition • N. J. LANGDON, M. J. AL HUSSAINI, P. J W ALDEN & C. M. SANGHA: An assessment of permeability of clay liners: two case histories • J. M. GRAY: The containment properties of glacial tills: a case study from Hardwick Airfield, Norfolk • M V. VILLAR & P. L. MARTIN: Suction controlled oedometric tests in montmorillonite clay: preliminary results • U. BOLTZE & M. H. DE FREITAS: Research into the mobility of a gas phase within a porous network • Section 5: Standards of landfill engineering • R. N. YONG: Waste disposal, regulatory policy and potential health threats • M. JEFFERIES, D. HALL, J. HINCHCLIFF & M. AIKEN: Risk assessment: where are we, and where are we going? • P. A. HART & 1. DAVEY: The protection of groundwaters from the effects of waste disposal • J. P. APTED, M. PHILPOTT & S. W. GIBBS: Development of a lined landfill site adjacent to a major potable supply river • P. M. MAURENBRECHER: Engineering geological and legal aspects involving proposals for a large waste disposal facility in The Netherlands. • D. ROCHE: Landfill failure survey: a technical note • D. G. TOLL: Educational issues in environmental geological engineering • Index