ABSTRACT
The presence of liquid contaminant in the fractures of rock or the dissolution cavities of karstic limestone distinguishes this locus from loci nos. 2, 5, 6 and 7, which discuss liquid contaminants present in granular, consolidated and unconsolidated porous media. In general, the storage capacity in rock fractures is very small, and is limited by the pore space constituted by the fractures. The maximum quantity of liquid contaminant held in locus no. 13 is calculated assuming a fracture porosity of 0.05% and assumes that the liquid contaminant is the synthetic gasoline described in locus no. 7. The high mobility of contaminants in the fractures and the lack of knowledge regarding fracture connectivity lower the feasibility of the actions. Liquid contaminant from locus no. 13 may also partition into water or air, by dissolution or volatilization. Only liquid contaminant in the unsaturated zone may volatilize, whereas liquid contaminant in either the saturated or unsaturated zones may dissolve into water.
