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M.J. Kloberdanz &Wssodates Post Office Boz 57 <br /> Modesto,CA 95357-6969 1 <br /> 81 <br /> Environmental ServicesPhone: (209)577-8186 <br /> Faz: (209)577-8158 <br /> r <br /> 10 <br /> February 25, 1999 <br /> Ms. Lori Duncan, REHS <br /> San Joaquin County Environmental Health <br /> 304 E. Weber Ave., Third Floor <br /> Stockton, California 95202 <br /> RE: Former Corral Hollow Truck Terminal at 30600 Corral Hollow Road, Tracy, CA <br /> Chem Away has asked us to propose the following option for disposal of stockpiled soil <br /> at the above referenced facility. The primary contaminant disclosed in the samples <br /> obtained from the excavated soil was diesel at an average of 440 mg/Kg. <br /> Soil Samples Obtained from Excavated & Stockpiled Soil (11-20-98) <br /> Sample# Diesel Gasoline Benzene E-Benzene Toluene Xylenes MTBE <br /> BPTOP N 500 *4 ND ND ND ND ND <br /> BPTOP S 97 ND ND ND ND ND ND <br /> BP S 1 290 ND ND ND ND ND ND <br /> BP S 2 1700 32 ND 0.100 0.060 ND ND <br /> BP S 3 120 ND 0.007 ND 0.009 0.010 ND <br /> BP S 4 140 ND ND ND ND ND ND <br /> BP S 5 640 *4 ND ND ND ND ND <br /> BP N 1 640 *4 ND ND ND ND ND <br /> BP N 2 140 ND ND ND ND ND ND <br /> BP N 3 250 *1 ND ND ND ND ND <br /> BP N 4 360 *3 ND ND ND ND ND <br /> BP N 5 400 3 ND ND ND ND ND <br /> *does not match typical gasoline pattern <br /> Note: All Units Reported in mg/Kg ND=Non Detectable <br /> Some diesel was present in the samples obtained from the two overburden stockpiles and <br /> 'Iftrivoncennflons were disclosed in the material removed from under the former <br /> dispenser piping. The average concentration in stockpile SS-9 is 370 mg/Kg. <br /> Soil Samples Obtained from Overburden after Stock iliaZ(11-17-98) <br /> Sample# Diesel Gasoline Benzene 'E-Benzene Toluene Xylenes MTBE <br /> Overburden 1 25 ND ND ND ND ND ND <br /> Overburden 2 160 2 ND ND ND ND ND <br /> SS91-4 260 14 ND ND ND 0.01 ND <br /> SS9 5-8 460 18 ND ND ND 0.04 ND <br /> SS9 9-12 530 20 ND ND ND 0.0.03 ND <br /> SS913-16 1230 19 ND ND ND 0.02 ND <br /> Note: All Units Reported in mg/Kg ND=Non Detectable <br />