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Geo nalytical Laboratories,�inc. <br /> 1405 Kansas-Avenue Modesto,CA.95351 Phone (209) 572-0900 Fax (209) 572-0916 <br /> I <br /> i <br /> CERTIFICATE OF ANALYSIS ' <br /> Repor[# N100-11 Oxygenates Date: 4/15/02 <br /> Thorpe Oil Date Rec'd: 4/10/02 <br /> P Project: Stockton Fire Station-Sonora St. Date Started: 4/11/02 <br /> PO Box 357 Date Completed.-4/12/02 <br /> Lodi CA 95241 p0# <br /> .Date Sampled: 4/10/02 <br /> Sampler: R.Chrun/R.Azevedo <br /> Sample ID Lab ID RL Method Analyte Results Units <br /> r <br /> Soil Sample#1 North@4' N200889 10 8260B Methyl tert-butyl ether (MTBE) ND pg/Kg <br /> 400 Ethanol ND <br /> 200 tert-Butanol ND I <br /> 10 di-Isopropyl ether(DIPS) 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 21.5 107.5 66-133 <br /> 2-Bromo-l-rhloropropane 20 15.7 78.5 63-139 I <br /> 4-Bromofluorobernzene 20 20.6 103 64-136 <br /> I <br /> i <br /> Tank @l1' N200890 10 8260E Methyl tert-butyl ether (MTBE) ND pg/Kg j <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 /> I <br /> 10 tert-Amyl methyl ether(TAME) ND <br /> i <br /> Spiked Surrogate Amnt S d Amnt Rec. %Recovery g p� QC Limit% <br /> 1,2-Dichloroethane-d4 20 21.9 109.5 66-133 <br /> i <br /> 2-Bromo-l-chloropropane 20 19.4 97 63-139 I <br /> 4-Bromofluorabenzene 20 16.8 84 64-136 <br /> . i <br /> I <br /> Stockpile#1 N200891 10 8260E Methyl tert-butyl ether (MTBE) ND pg/Kg <br /> 400 Ethanol ND i <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 24.2 121 66-333 <br /> 2-Bromo-l-chloropropane 20 18.2 91 63-139 <br /> 4-Bromot7uorobenzene 20 18.9 94.5 64-136 <br /> I <br /> Mario D'Onofrio Donna Keller <br /> Chemist Certification # 1157 Laboratory Director <br />