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PRECISION <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OF ANALYSIS <br /> Tuesday,April 19,2005 <br /> Attention: Doug Heard <br /> Kleinfelder, Inc. Report Page 6of17 <br /> 2825 Myrtle St. <br /> Stockton, CA 95205 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sample Information <br /> Sample ID: 27738-T21-2 Sample Type: Grab <br /> Laboratory ID: 5041812-01 Project Name: SJRTD <br /> Date/Time Sampled: 15-Apr-05 00:00 by Francis X.Bean Sample Matrix: Soil <br /> Test Parameter Result DLR Unit Dilution Batch Prepared Analysis Date Method Notes <br /> 1,1,1-Trichloroethane NO 2.00 ug/kg 1 AD51806 18-Apr-05 19-Apr-05 EPA 8260B <br /> Trichloroethene NO 2.00 ug/kg 1 AD51806 18-Apr-05 19-Apr-05 EPA 8260B <br /> Trichlorofluoromethane NO 2.00 ug/kg 1 AD51806 18-Apr-05 19-Apr-05 EPA 8260B <br /> 1,2,3-Trichloropropane NO 2.00 ug/kg 1 AD51806 18-Apr-05 19-Apr-05 EPA 8260B <br /> 1,3,5-Trimethylbenzene NO 2.00 ug/kg 1 AD51806 18-Apr-05 19-Apr-05 EPA 8260B <br /> 1,2,4-Trimethylbenzene NO 2.00 ug/kg 1 AD51806 18-Apr-05 19-Apr-05 EPA 8260B <br /> Vinyl acetate NO 20.0 ug/kg 1 AD51806 18-Apr-05 19-Apr-05 EPA 8260B <br /> Vinyl chloride NO 2.00 ug/kg 1 A051806 18-Apr-05 19-Apr-05 EPA 8260B <br /> Methyl tert-butyl Ether(MtBE) NO 2.00 ug/kg 1 AD51806 18-Apr-05 19-Apr-05 EPA 8260B <br /> Ethyl tort-Butyl Ether(ETRE) NO 2.00 ug/kg 1 AD51806 18-Apr-05 19-Apr-05 EPA 82608 <br /> m,p-Xylene NO 2.00 ug/kg 1 AD51806 18-Apr-05 19-Apr-05 EPA 8260B <br /> o-Xylene NO 2.00 ug/kg 1 AD51806 18-Apr-05 19-Apr-05 EPA 8260B <br /> tert-Amyl Methyl Ether(TAME) NO 2.00 ug/kg 1 AD51806 18-Apr-05 19-Apr-05 EPA 82608 <br /> tert-Butyl Acohol(TBA) NO 50.0 ug/kg 1 AD51806 18-Apr-05 19-Apr-05 EPA 8260B <br /> Diisopropyl Ether(DIPE) NO 2.00 ug/kg 1 AD51806 18-Apr-05 19-Apr-05 EPA 82608 <br /> Surrogate:Dibromotluoromethane 86-118 <br /> Surrogate:Toluene-d8 88-110 <br /> Surrogate:4-Bromotluorobenzene 86-115 <br /> mgt=milligrams per Liter=ppm DLR=Detection Ltmitfor Purpose of Reporting. <br /> ur/L=micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> result in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> vol-'re� <br /> Jonathan Le,Laboratory Director <br /> 7743 N. West Lane. Sctite B2 Stockton CA. .95 2.10 Dhone: (209) 477-810.1 Fax: 120.91 477-8148 <br />