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PRECISION <br /> ENVIRO-'TECH <br /> Analytical Laboratory CERTIFICATE OFANALYSIS <br /> ' Sunday,August 29, 2004 <br /> Attention Guy Roy <br /> California Tank Lines Report Page 14 of 17 <br /> P O BOX 6245 <br /> Stockton, CA 95206 <br /> Volatile Organic Compounds by EPA Method 8260B-Quahty Control <br /> Precision Enviro-Tech <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %RFC Lunits RPD Limit Notes <br /> 1 Batch AG42003-Volatiles <br /> Blank(AG42003-BLKI) Prepared&Analyzed 21-Jun-04 <br /> tert-Butyl Acohoi(TBA) ND 500 ug/l <br /> 100 " <br /> Methyl-tert-butyl-Ether(MtBE) ND " <br /> Dusopropyl Ether(DIPE) ND 100 <br /> ' Ethyl tert-Butyl Ether(ETRE) ND 1 00 " <br /> tert-Amyl Methyl Ether(TAME) ND 100 " <br /> 100 " <br /> l,2-Dtbromoethane(EBB) ND ' <br /> 1,2-Dichloroethane ND 100 " <br /> Benzene ND 100 ; <br /> Ethylbenzene ND 100 " <br /> Toluene ND 100 <br /> xylene <br /> ND 1 00 n <br /> ne ND 100 " <br /> TPH-Gasoline ND 100 <br /> LCS(AG42003-BS1) Prepared&Analyzed 21-Jun-04 <br /> Benzene 8 13 1 00 ug/1 800 102 88-124 <br /> Ethylbenzene 857 100 800 107 88-122 <br /> 829 100 800 104 88-122 <br /> Toluene <br /> Toluen18 4 100 160 115 88-122 <br /> m,p-X llene 880 100 800 110 88-122 <br /> o-Xyle <br /> Matnx Spike(AG42003-MSI) Source 0402161-01 Prepared 21-Jun-04 Analyzed 22-Jun-04 <br /> ' Benzene <br /> 920 100 ugll 100 ND 92 88-124 ND <br /> Bonze enzene 100 ND 88-124 <br /> Toluene <br /> 9 90 1 00 " 88-122 <br /> 10 0 ND 99 <br /> 88-122 <br /> m,p-Xylene ND 100 ND <br /> o-Xylene ND 100 ND 88-122 <br /> mg/L-milligrams per Liter=ppm DLR-Detection Limu for Purpose of Reporting <br /> 1 ugli -micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> result in higher detection limns <br /> OPECTFULLY SUBMITTED, <br /> Jonathan Le,Laboratory Director <br /> 7743 N West Lane Suite B2 Stockton CA 95210 phone (209) 477-8105 Fax (209) 477-8148 <br />