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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 8 of 26 <br /> 2825 Myrtle St. <br /> Stockton, CA 95205 <br /> Metals by EPA 6000/7000 Series Methods <br /> Sample Information <br /> Sample ID: 31191 T2ET 7 Sample Type: Grab <br /> Laboratory ID: 5041907-02 Project Name: SJRTD <br /> Date/Time Sampled: 19-Apr-05 13:45 by Doug Heard Sample Matrix: Soil <br /> Test Parameter Result DLR Unit Dilution Batch Prepared Analysis Date Method Notes <br /> Cadmium ND 0.100 mg/kg 1 AD51909 19-Apr-05 19-Apr-05 EPA 6010A <br /> Chromium 24.0 0.500 mg/kg 1 AD51909 19-Apr-05 19-Apr-05 EPA 6010A <br /> Hexavalent Chromium ND 0.10 mg/kg 1 AD51913 19-Apr-05 19-Apr-05 EPA 7196A <br /> Nickel 26.6 0.500 mg/kg 1 AD51909 19-Apr-05 19-Apr-05 EPA 6010A <br /> Lead 5.55 0.500 mg/kg 1 AD51909 19-Apr-05 19-Apr-05 EPA 6010A <br /> Zinc 23.4 0.500 mg/kg 1 AD51909 19-Apr-05 19-Apr-05 EPA 6010A <br /> mgt=milligrams per Liter=ppm DLR-Detection Lima jor Purpose of Reporting. <br /> etgiL=micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> restdt in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> Jonathan Le,Laboratory Director <br /> " 43 N. YVest Lane. Sithe B2 Stockto/1 C.'.-1. 95210 chow. (209) 47%_8105 Fax: (209) 4„-S.l48 <br />