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Geonal tical. Laboratoriesn . <br /> y c <br /> r <br /> 1405 Kansas Avenue Modesto, CA 95351 Phone (209) 572-0900 Fax (209) 572-0916 <br /> I <br /> I <br /> CERTIFICATE OF ANALYSIS i <br /> Report# N100-11 Oxygenates Date: 4/15/02 <br /> Date Recd: 4/10/02 <br /> Thorpe Oil Project: Stockton Eire Station-Sonora St. Date Started: 4/11/02 <br /> PO Box 357 Date Completed-4/12/02 <br /> Lodi CA 95241 PO# <br /> Date Sampled: 4/10/02 <br /> Sampler: R.Chrun/R.Azevedo <br /> i <br /> Sample ID Lab ID RL Method Analyte Results Units <br /> Stockpile#2 N200892 10 8260B Methyl tert-butyl ether(MTBE) ND lig/Kg <br /> 400 Ethanol ND <br /> 200 tert-Butanol ND <br /> 10 di-Isopropyl ether(DIPE) ND <br /> 10 Ethyl tert-butyl ether(ETBE) ND <br /> 10 tert-Amyl methyl ether(TAME) ND <br /> Surrogate Amnt Spiked Amnt Rec. %Recovery QC Limit% <br /> 1,2-Dichloroethane-d4 20 21.4 107 66-133 j <br /> 2-Bromo-l-chloropropane 20 19.1 95.5 63-139 <br /> l 4-Bromofluorobenzene 20 21.1 105.5 64-136 j <br /> e <br /> i <br /> I <br /> Stockpile#3 N200893 10 8260B Methyl tert-butyl ether(MTBE) ND pg/Kg <br /> 400 Ethanol ND <br /> 200 tert-Butanol ND <br /> 10 di-Isopropyl ether(DIPE) ND <br /> 10 Ethyl tert-butyl ether(ETBE) ND <br /> 10 tert-Amyl methyl ether(TAME) ND <br /> Surrogate Amnt Spiked Amnt Rec. %Recovery QC Limit <br /> 1,2-Dichloroethane-d4 20 19.1 95.5 66-133 <br /> 2-Bromo-l-chloropropane 20 21.1 105.5 63-139 <br /> 4-Bromofluorobenzene 20 20.8 104 64-136 <br /> Stockpile#4 N200894 10 8260B Methyl tert-butyl ether (MTBE) ND pg/Kg <br /> 400 Ethanol ND <br /> 200 tert-Butanol ND <br /> 10 di-Isopropyl ether(DIPE) ND <br /> 10 Ethyl tert-butyl ether(ETBE) ND <br /> 10 tert-Amyl methyl.ether(TAME) ND h <br /> I <br /> Surrogate Amnt Spiked Amnt Rec. %Recovery QC Limit°/o <br /> 1,2-Dichloroethane-d4 20 19:0 95 66-133 <br /> 2-Bromo-l-chloropropane 20 26.0 130 63-139 <br /> 4-Bromofluorobenzene 20 15.1 75.5 64-136 <br /> i <br /> I <br /> ! f C <br /> Mario D010 Donna Keller j <br /> Chemist Certification 4 1157 Laboratory Director <br />