 The 60,000 tons of PCB-contaminated soil were buried within about 7 feet of groundwater.Warren County's first independent scientist, Dr. Charles Mulchi, had predicted that the landfill would inevitably fail because of unsuitable soils and close proximity to groundwater.He had pointed out at a January 4, 1979, EPA public hearing that state scientists had misrepresented the depths of soil sample testing they had conducted at the site.