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PRECISION <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OF ANALYSIS <br /> Wednesday,April 20,2005 <br /> Attention: Doug Heard <br /> Kleinfelder, Inc. Report Page 4 of 26 <br /> 2825 Myrtle St. <br /> Stockton, CA 95205 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sample Information <br /> Sample ID: 31191 T2B 15 Sample Type: Grab <br /> Laboratory ID: 5041907-01 Project Name: SJRTD <br /> Date/Time Sampled. 19-Apr-05 13:40 by Doug Heard Sample Matrix: Soil <br /> Test Parameter Result DLR Unit Dilution Batch Prepared Analysis Date Method Notes <br /> 1,2-Dichloroethane ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> 1,1-Dichloroethene ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> cis-1,2-Dichloroethene ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> trans-1,2-Dichloroethene ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> 1,2-Dichloropropane ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> 1,3-Dichloropropane ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> 2,2-Dichloropropane ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> 1,1-Dichloropropene ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 82608 <br /> cis-1,3-Dichloropropene ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 82608 <br /> trans-1,3-Dichloropropene ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> Ethylbenzene ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> Freon 113 ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 82608 <br /> Hexachlorobutadiene ND 2.00 ug/kg 1 A051911 19-Apr-05 19-Apr-05 EPA 8260B <br /> 2-Hexanone ND 50.0 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 82608 <br /> E <br /> ylbenzene ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> pyltoluene ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> ne chloride ND 2.00 ug/kg 1 AD51911 19-Apr-O519-Apr-05 EPA 82608 <br /> l-2-pentanone ND 20.0 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> Naphthalene ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> n-Propylbenzene ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> Styrene ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> 1,1,2,2-Tetrachloroethane ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 82608 <br /> 1,1,1,2-Tetrachloroethane ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> Tetrachloroethene ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> Toluene ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> 1,2,3-Trichlorobenzene ND 2.00 ug/kg 1 A051911 19-Apr-05 19-Apr-05 EPA 8260B <br /> 1,2,4-Trichlorobenzene ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 82608 <br /> 1,1,2-Trichloroethane ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 82608 <br /> 1,1,1-Trichloroethane ND 2.00 ug/kg 1 AD51911 19-Apr-05 19-Apr-05 EPA 8260B <br /> mg/L.=milligrams per Liter=ppm DLR=Detection Limit for purpose of Reporting. <br /> ug/L—micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> result in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> _ ,er <br /> Jonathan Le,Laboratory Director <br /> 7743.N. i'Vest Lane. Suite B2 Stockton C'A. .952.10 ohone: (209) 477-81 U5 Fax: (?091 4"-81 48 <br />