This text contains the proceedings of the fifth conference on karst geohazards. It presents 65 papers that cover topics such as: groundwater contamination through sinkholes and the karst surface; stormwater drainage and flooding problems; and foundation considerations and improvements in karst.

1. Keynote paper 2. Karst geology Surficial processes and sinkholes 3. Karst hydrogeology 4. Karst geohazards- groundwater contamination through sinkholes and the karst surface 5. Karst geohazards-Transport of groundwater contamination in a karst aquifer 6. Karst geohazards - Stormwater drainage and flooding problems 7. Karst geohazards - Case studies on engineering sinkholes 8. Foundation cosniderations and improvements in karst 9. Investigating karst with geophysics 10. Planning and investigation for engineering in karst 11. Government regulations for karst areas 12. Fieldtrip guidebook and related papers. Author Index.