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PRECISION <br /> E TWRO-TECH <br /> Analytical Laboratory CERTIFICATE OFANALYSIS <br /> Sunday,August 29, 2004 <br /> ' Attention Guy Roy <br /> California Tanis Lines Reporl Page 2 of 17 <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: 0402161-01 Project Name: QM Q2 2004 <br /> Date/Time Sampled- 16-Jun-04 13 25 by D Sorenson Sample Matrix. Ground Water-Non Potable <br /> Test Parameter Result DLR Unit Dilution Batch Pre aced Analysis Date Method Notes <br /> tert-Butyl Aeohol(TBA) ND 500 ug/1 1 AG42003 21-Jun-04 22-Jun-04 EPA 82606 <br /> Methyl-tert-butyl-Ether(MtBE) ND 1 00 ug/1 1 AG42003 21-Jun-04 22-Jun-04 EPA 82606 <br /> Dusopropyl Ether(DIPE) ND 100 ug/1 1 AG42003 21-Jun-04 22-Jun-04 EPA 82608 <br /> Ethyl tert-Butyl Ether(ETRE) ND 1 00 ug/1 1 AG42003 21-Jun-04 22-Jun-04 EPA 8260B <br /> tert-Amyl Methyl Ether(TAME) NO 100 ug/1 1 AG42003 21-Jun-04 22-Jun-04 EPA 82606 <br /> 1,2-Dibromoethane(EDB) ND 100 ugll 1 AG42003 21-Jun-04 22-Jun-04 EPA 8260B <br /> 1,2-Dichloroethane ND 1 00 ugll 1 AG42003 21-Jun-04 22-Jun-04 EPA 82606 <br /> Benzene ND 100 ug/1 1 AG42003 21-Jun-04 22-Jun-04 EPA 8260B <br /> (benzene ND 1 00 ug/1 1 AG42003 21-Jun-04 22-Jun-04 EPA 82608 <br /> ene ND 100 ug/1 1 AG42003 21-Jun-04 22-Jun-04 EPA 8260E <br /> m,p-Xylene ND 100 ug/1 1 AG42003 21-Jun-04 22-Jun-04 EPA 8260B <br /> o-Xylene ND 100 ug/1 1 AG42003 21-Jun-04 22-Jun-04 EPA 8260B <br /> TPH-Gasoline ND 100 ug/1 1 AG42003 21-Jun-04 22-Jun-04 EPA 8260B <br /> Surrogate 4-Bromotluorobenzene 90% 86-115 <br /> r <br /> i <br /> mg/L=milligrams per Luer-ppm DLR-Detection Limit for Purpose of Reporting <br /> ug/L=micrograms per Liter=ppb Hxcepnonal sample matrices or interferences may <br /> result in higher detection limits <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 />