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1 <br /> . Soil contamination found dunng MW2-MW6 construction in June 2002 ranged <br /> between 20 mg/kg to as high as 14,000 mg/kg in concentrated areas downwards to <br /> 30FT +/- A rapid drop off to less than 1 mg/kg at about 30 FT bgs reflected a denser <br /> clayey silt or clayey sand layer at about 30 FT bgs Heavy contamination was found in <br /> the pervious sandy layers atop of the denser soil It is anticipated that direct removal of <br /> ' contaminated product to permissible limits rather than extensive drilling is feasible <br /> Currently available candidate areas for excavation are where the excavation point is not <br /> ' covered by the block wall enclosed heated storage AST and loading rack areas <br /> 1 <br /> 1 <br /> 1 <br /> ' 2-3 <br />