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PRECISION <br /> ENVIRO-TECH <br /> i Analytical Laboratory CERTIFICATE OF ANALYSIS <br /> Thursday,August 11, 2005 <br /> Attention Jack Bishop <br /> California Tank Lines Repon Page 2 of22 <br /> P 0 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: 5062506-01 Project Name- QM Q2 2005 <br /> DatelTime Sampled. 24-Jun-05 12 20 by D Sorenson Sample Matrix. Ground Water-Non Potable <br /> Test Parameter Result DLR Unit Dilution Batch Prepared Analysis Date Method Notes <br /> tert-Butyl Acohol(TBA) ND 500 ugll 1 AF52811 28-Jun-05 28-Jun-05 EPA 8260E <br /> Methyl teff-butyl Ether(MtBE) ND 0 500 ugll 1 AF52811 28-Jun-05 28-Jun-05 EPA 8260B <br /> Dusopropyl Ether(DIPS) ND 0 500 ugll 1 AF52811 28-Jun-05 28-Jun-05 EPA 82606 <br /> Ethyl tert-Butyl Ether(ETRE) ND 0 500 ugll 1 AF52811 28-Jun-05 28-Jun-05 EPA 82606 <br /> tert-Amyl Methyl Ether(TAME) ND 0 500 ugll 1 AF52811 28-Jun-05 28-Jun-05 EPA 8260B <br /> 1,2-Dlbromoethane(EDS) ND 0 500 ugll 1 AF52811 28-Jun-05 28-Jun-05 EPA 8260B <br /> 1 2-Dichloroethane ND 0 500 ugll 1 AF52811 28-Jun-05 28-Jun-05 EPA 82606 <br /> Benzene ND 0 500 ugll 1 AF52811 28-Jun-05 28-Jun-05 EPA 8260B <br /> Ethylbenzene ND 0 500 ug/1 1 AF52811 28-Jun-05 28-Jun-05 EPA 8260B <br /> luene ND 0 500 ugll 1 AF52811 28-Jun-05 28-Jun-05 EPA 8260B <br /> m p-Xylene ND 0 500 ugll 1 AF52811 28-Jun-05 28-Jun-05 EPA 8260E <br /> o-Xylene ND 0 500 ug/1 1 AF52811 28-Jun-05 28-Jun-05 EPA 8260E <br /> Surrogate Toluene-d8 905% 70-125 <br /> Surrogate Dibmmofluoromethane 108% 70-125 <br /> Surrogate 4-Bromofluombenzene 99% 70-125 <br /> mg/L=milligrams per Liter=ppm DLR=Detection Limit for Purpose of Reporting <br /> ug/L=micrograms per Liter=ppb Exceptional sample mainces or mterfernnces may <br /> result in higher detection limits <br /> RESPECTFULLY SUBMITTED, <br /> 041'�5/01'r� <br /> Jonathan Le,Laboratory Director <br /> 7743 A' West Lane Suite B2 Stockton CA 95210 shone (209) 477-8105 Fax (209) 477-8148 <br /> 45166 <br />