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' PRECISION <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OFANALYSIS <br /> Friday, October 29,2004 <br /> Attention. Guy Roy <br /> California Tank Lines Report Page 10 of 22 <br /> P O BOX 6245 <br /> Stockton, CA 95206 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sample ID: MW-3 <br /> Sample Information <br /> I Sample Type. Grab <br /> Laboratory ID: 4092310-03 Project Name: QM Q3 2004 <br /> Date/Time Sampled 22-Sep-04 12 45 by D Sorenson Sample Matrix: Ground Water-Non Potable <br /> Test Parameter Result DLR Unit Dilunon Batch Prepared Analyses Date Method Notes <br /> tert-Butyl Acohol(TBA) NO 500 ugll 1 A143013 30-Sep-04 01-Oct-04 EPA 8260B <br /> Methyl tert-butyl Ether(MtBE) NO 0 500 ugll 1 A143013 30-Sep-04 01-Oct-04 EPA 8260B <br /> Dusopropyl Ether(DIPS) NO 0 500 ugll 1 A143013 30-Sep-04 01-Oct-04 EPA 82606 <br /> Ethyl tent-Butyl Ether(ETRE) NO 0 500 ug/1 1 A143013 30-Sep-04 01-Oct-04 EPA 82608 <br /> tert-Amyl Methyl Ether(TAME) NO 0 500 ug/1 1 AI43013 30-Sep-04 01-Oct-04 EPA 8260E <br /> 1,2-Dibromoethane(EDB) NO 0 500 ug/l 1 A143013 30-Sep-04 01-Oct-04 EPA 8260B <br /> 1,2-Dichloroethane NO 0 500 ug/1 1 A143013 30-Sep-04 01-Oct-04 EPA 8260B <br /> Benzene NO 0 500 ugll 1 Af43013 30-Sep-04 01-Oct-04 EPA 82606 <br /> ,fftlbenzene NO 0 500 ug/1 1 A143013 30-Sep-04 01-Oct-04 EPA 82606 <br /> ne NO 0 500 ug/l 1 A143013 30-Sep-04 01-Oct-04 EPA 8260B <br /> m,p-Xylene ND 1 00 ugll 2 A143013 30-Sep-04 —0-1--Oct-04 EPA 82608 <br /> ' o-Xylene NO 0 500 ugll 1 A143013 30-Sep-04 01-Oct-04 EPA 82603 <br /> Surrogate Toluene-d8 100% 70-125 <br /> Surrogate Dibromofluoromethane 100% 70-125 <br /> Surrogate 4-Bromofluorobenzene 97% 70-125 <br /> I <br /> 1 <br /> mg/L=milligrams perLrter=ppm DLR=Detection Limitfor Purpose ofReportmg <br /> u&E—micrograms per Luer—ppb Exceptional sample matrices or interferences may <br /> result in higher deteetton limits <br /> ECTFULLY SUBMITTED, <br /> 1 Jonathan Le,Laboratory Director <br /> 7743 N West Lane Suite B2 Stockton CA 95210 phone (209) 477-8105 Fax (209) 477-8148 <br />