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PRECISION <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OF ANALYSIS <br /> ' Wednesday,March 2,2005 <br /> Attention: Francis X. Bean <br /> ' Kleinfelder,Inc. Report Page 5of21 <br /> 2825 East Myrtle Street <br /> Stockton, CA 95205 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sample Information <br /> Sample ID: 30102-T-16"bg Sample Type: Grab <br /> Laboratory ID: 5030109-01 Project Name: SJRTD <br /> Date/Time Sampled: 01-Mar-05 10:55 by Francis X.Bean Sample Matrix: Soil <br /> ' Test Parameter Result DLR Unit Dilution Batch Prepared Analysis Date Method Notes <br /> p-Isopropyltoluene 48.8 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> ' Methylene chloride 8600 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 82608 <br /> 4-Methyl-2-pentanone NO 20.0 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> Methyl tart-butyl ether NO 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 82608 <br /> ' Naphthalene 71.2 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> n-Propylbenzene 54.8 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 82608 <br /> Styrene 12.4 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 82608 <br /> 1,1,2,2-Tetrachloroethane 432 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> 1,1,1,2-Tetrachloroethane NO 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> Tetrachloroethene NO 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> Toluene 93.5 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> ' 1,2,3-Trichlorobenzene 668 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> 1,2,4-Trichlorobenzene 375 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> 1,1,2-Trichloroethane 6940 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> 1,1,1-Trichloroethane NO 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 82608 <br /> ' Trichloroethene NO 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 82608 <br /> Trichlorofluoromethane NO 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> 1,2,3-Trichloropropane NO 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> ' 1,3,5-Ttimethylbenzene 37.4 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 82608 <br /> 1,2,4-Trimethylbenzene 74.1 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 82608 <br /> Vinyl acetate NO 20.0 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> Vinyl chloride NO 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> ' <br /> Methyl tert-butyl Ether(MtBE) NO 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> Ethyl tert-Butyl Ether(ETRE) ND 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> m,p-Xylene 87.4 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> o-Xylene 46.4 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 82608 <br /> tert-Amyl Methyl Ether(TAME) NO 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> tert-Butyl Acohol(TBA) NO 50.0 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> Diisopmpyl Ether(DIPE) NO 2.00 ug/kg 1 AC50116 01-Mar-05 01-Mar-05 EPA 8260B <br /> mg/L-milligrams per Liter=ppm DLR=Detection Lima for Purpose of Reporting. <br /> ug/L-micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> result in higher defection limits. <br /> RESPECTFULLY SUBMITTED, <br /> Jonathan Le,Laboratory Director <br /> 7743 N. West Lane. Suite B2 Stockton C4. 952.10 Wione: (209) 477-8105 Fax: (209) 477-8148 <br />