Groundwater flow and contaminant transport through the epikarst in two karst drainage Systems, USA

摘要

Lemon Lane Landfill has limestone cropping out at the surface with an extensive developed lateral epikarst contaminated with polychlorinated biphenyls (PCB). The Ammunition Burning Grounds contaminated with RDX has a sandstone cap and the karst development in the limestone beneath occurs only where joints dissect the sandstone. The results of geophysical and hydrochemical studies show that contaminant transport differs in the two areas.