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PRECISION <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OFANAL YSIS <br /> Thursday,August 11, 2005 <br /> Attention Jack Bishop <br /> California Tank Lines Report Page 19 of 22 <br /> P O BOX 6245 <br /> Stockton, CA 95206 <br /> Volatile Organic Compounds by EPA Method 8260B- Quality Control <br /> Precision Enviro-Tech <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch AF52811-Volatiles <br /> Matrix Spike(AF52811-MSI) Source 5062506-03 Prepared dt Analyzed 28-Jun-05 <br /> 1,2-Dichlorocthane 210 0 500 USA 200 ND 105 75-122 <br /> Benzene 232 0 500 200 ND 116 75-122 <br /> Ethylbenzene 220 0 500 200 ND 110 75-122 <br /> Toluene 214 0 500 " 200 ND 107 75-122 <br /> m p-Xylene 439 0 500 400 ND 110 75-122 <br /> o-Xylene 226 0 500 200 ND 113 75-122 <br /> Matrix Spike Dup(AF52811-MSDI) Source 5062506-03 Prepared&.Analyzed 28-Jun-05 <br /> tert Butyl Acohol(TBA) 828 500 ug/1 t00 ND 83 75-122 2 15 <br /> Methyl tert-butyl Ether(MtBE) 410 0 500 400 ND 102 75-122 1 15 <br /> Dusopropyl Ether(DIPE) 212 0 500 200 ND 106 75-122 8 15 <br /> *yl tent-Butyl Ether(ETBE) 210 0 500 200 ND 105 75-122 2 15 <br /> -Amy[Methyl Ether(TAME) 203 0 500 200 ND 102 75-122 6 15 <br /> i,2-Dibromoethane(EDB) 178 0 500 200 ND 89 75-122 15 15 <br /> 1,2-Dichloroethane 200 0 500 200 ND 100 75-122 5 15 <br /> Benzene 22 1 0 500 200 ND 110 75-122 5 15 <br /> Ethylbenzenc 220 0 500 200 ND 110 75-122 0 15 <br /> Toluene 23 8 0 500 200 ND 119 75-122 11 15 <br /> m,p-Xylene 440 0 500 400 ND 110 75-122 02 15 <br /> o-Xylene 23 1 0 500 200 ND 116 75-122 2 15 <br /> mg/L=indligrams per Lrter=ppm DLR=Detection Limri for Purpose of Reporting <br /> ug/L=micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> result in higher detection limits <br /> RESPECTFULLY SUBMITTED, <br /> Jonathan Le,Laboratory Director <br /> 7 743 N W est Lane Suite B2 Stockton CA 95210 atone (209) 477-81(}5 Fax (209) 477-8148 <br /> 62166 <br />