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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 2of22 <br /> P O BOX 6245 <br /> ' Stockton, CA 95206 <br /> ' Volatile Organic Compounds by EPA Method 8260B <br /> Sample Information <br /> Sample ID. MW-1 Sample Type Grab <br /> ' Laboratory ID. 4092310-01 Project Name: QM Q3 2004 <br /> Date/Time Sampled: 22-Sep-04 13 00 by D Sorenson Sample Matrix: Ground Water-Non Potable <br /> ' Test Parameter Result DLR Unit Dilution Batch Prepared Analyses Date Method Notes <br /> tert-Butyl Acohol(TBA) NO 500 ugh 1 AI43013 30-Sep44 01-Oct-04 EPA 8260B <br /> Methyl tert-butyl Ether(MtBE) NO 0 500 ug/1 1 A143013 30-Sep-04 01-Oct-04 EPA 8260B <br /> ' Ditsopropyl Ether(DIPE) NO - 0 500 ug/1 1 A143013 30-Sep-04 01-Oct-04 EPA 8260B <br /> Ethyl tert-Butyl Ether(ETBE) NO 0 500 ugll 1 AI43013 30-Sep-04 01-Oct-04 EPA 8260B <br /> tert-Amyl Methyl Ether(TAME) NO 0 500 ugll 1 A143013 30-Sep-04 01-Oct-04 EPA 8260B <br /> 1,2-Dibromoethane(EDB) NO 0 500 ug/1 1 AI43013 30-Sep-04 01-Oct-04 EPA 82606 <br /> 1,2-Dichloroethane NO r 0 500 ug/1 1 A143013 30-Sep-04 01-Oct-04 EPA 8260B <br /> Benzene NO 0 500 ug/1 1 AI43013 30-Sep-04 01-Oct-04 EPA 8260B <br /> ' Akibenzene 07900500,- ugll 1 A143013 30-Sep-04 01-Oct-04 EPA 8260B <br /> Jlkne� NO -0500 ug/1 1 AI43013 30-Sep-04 01-Oct-04 EPA 8260B <br /> m,p-Xylene ND 100 ug/1 2 A143013 30-Sep-04 01-Oct-04 EPA 8260B <br /> ' o-Xylene - NO 0 500 Ug/1 1 A143013 30-Sep-04 01-Oct-04 EPA 82606 <br /> Surrogate Toluene-d8 102% 70-125 <br /> Surrogate Dtbromofluoromethene 100% 70-125 <br /> Surrogate 4-Bromofluorobenzene 99% 70-125 <br /> t <br /> 1 <br /> mg/L-milligrams per Liter=ppm DLR=Detection Limtt for Purpose of Reporting <br /> t eg/L-micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> result to higher detection limits <br /> ECTFULLY SUBMITTED, <br /> 1 <br /> Jonathan Le,Laboratory Director <br /> 7743 N West Lane Suite B2 Stockton CA 95210 Dhone (209) 477-8105 Fax (209) 477-8148 <br />