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h <br /> GeoAnalytical Laboratories, Inc. <br /> 1405 Kansas Avenue Modesto, CA 95351 Phone (209) 572-0900 Fax (209) 572-0916 <br /> CERTIFICATE OF ANALYSIS . <br /> Report# N100-11 BTEX & Gas Date: 4/19/02 <br /> Thorpe Oil ! Project: Stockton Fire Station-Sonora St. Date Rec'd:Date Started: 4/150 <br /> /02 <br /> PO Box 357 /02 <br /> Lodi CA 95241 PO# <br /> Date Completed-4/15/02 <br /> _ <br /> Date Sampled: 4/10/02 yy <br /> Sampler: R.Chrun/R.Azevedo f <br /> I <br /> Sample ID Lab 1D RL Method Analyte y Results Units <br /> Soil Sample#6 South@4' N200880 5.0 8021 B Benzene ND pg/Kg <br /> 5.0 Toluene ND pg/Kg <br /> 5.0 Ethyl Benzene ND pg/Kg <br /> 5.0 Total Xylenes ND 11g/Kg <br /> 1.0 5030/LUFT Gasoline ND mg/Kg <br /> Surrogate Amnt Spiked Amnt Rec. %Recovery <br /> P� ry QC Limit <br /> a,a,a-TFT 250 238 95.2 66-117 i <br /> Soil Sample#7 South@4' N200881 5.0 8021 B Benzene ND pg/Kg <br /> 5.0 Toluene ND pg/Kg <br /> 5.0 Ethyl Benzene ND pg%Kg <br /> 5.0 Total Xylenes ND pg/Kg <br /> 1.0 5030/LUFT Gasoline ND mg/Kg <br /> Spiked Surrogate Amnt S d Amnt Rec. %Recovery. P� QC Limit% <br /> a,a,a-TFT 250 243 97.2 66-117 <br /> Soil Sampie#7 North@4' N200882 5.0 8021B Benzene M7 pg/Kg <br /> 5.0 Toluene ND pg/Kg <br /> 5.0 Ethyl Benzene ND pg/Kg' <br /> 5.0 Total Xylenes ND pg/Kg <br /> 1.0 5030/LUFT Gasoline ND mg/Kg <br /> I <br /> ; <br /> Surrogate Amnt Spiked Amnt Rec. %Recovery QC Limit% <br /> a,a,a-TFT 250 245 98 66-117 <br /> f <br /> is <br /> ario D'Onofr o Donna`Keller ` <br /> Chemist Certification # 1157 Laboratory Director <br /> F <br />