Hydrogeological Security of a Site
Abstract
The new Southland Regional Landfill, located near Winton, is situated in redundant parts of a working limestone quarry. The area surrounding the landfill displays prominent karst features that are readily visible from the ground and aerial photographs.
The Centre for Advanced Engineering (CAE, 2000) Landfill Guidelines for New Zealand suggest that it is generally undesirable to site a landfill in areas of karst geology. Landfills designed in these environments must be engineered to a higher level to avoid the hydrological features of karst that are typically detrimental to the containment of leachate or hydrogeological security of landfills.