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IrPRECISION <br /> l ENVIRO-TECH <br /> Anctljlticrr/Laboratory CERTIFICATE OF ANALYSIS <br /> Tuesday,April 12,2005 <br /> Attention: Francis X. Bean <br /> Kleinfelder,Inc. <br /> 2825 East Myrtle Street Report Page 19 of 39 <br /> Stockton, CA 95205 <br /> Metals by EPA 6000/7000 Series Methods <br /> Sample Information <br /> Sample ID: 34753-E-SW Sample Type: Grab <br /> Laboratory ID: 5041107-04 Project Name: SJRTD <br /> Date/Time Sampled. 11-Apr-05 11:40 by Francis X.Bean Sample Matrix: Soil <br /> Tea Parameter Result DLR Unit Dilution Batch Prepared AnalrsisDate Method Notes <br /> Cadmium ND 0.100 mg/kg 1 AD51114 11-Apr-05 11-Apr-05 EPA 6010A <br /> Chromium 19.2 0.500 mg/kg 1 AD51114 11-Apr-05 11-Apr-05 EPA 6010A <br /> Hexavalent Chromium ND 0.10 mg/kg 1 AD51115 11-Apr-05 11-Apr-05 EPA 7196A <br /> Nickel — <br /> _ 13.5. 0.500 mg/kg 1 AD51114 11-Apr-05 11-Apr-OS EPA 6010A <br /> Lead 4.45 0.500 mg/kg 1 AD51114 11-Apr-05 11-Apr-05 EPA 6010A <br /> Zinc 22.8 0.500 mg/kg 1 AD51114 11-Apr-05 11-Apr-05 EPA 6010A <br /> mgt=milligrams per Liter=ppm DLR=Detection Limiljor Purpose afReporting, <br /> ug/L=micrograms per Liter=pith Exceptional sample mainces or interferences may <br /> result in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> 11'�J/Otlz� <br /> Jonathan Le,Laboratory Director <br /> 7743 A'. West Lane. Suite B2 Stocklon CA. 95210 phone: (209) 477-8105 Fax: (209) 4T'-8148 <br />