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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. <br /> Report Page 1 oj21 <br /> 2825 East Myrtle Street <br /> Stockton, CA 95205 <br /> Metals by EPA 6000/7000 Series Methods <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 /> Cadmium ND 0.100 mg/kg 1 AC50119 01-Mar-05 01-Mar-05 EPA 6010A <br /> Chromium 43.4 0.500 mg/kg 1 AC50119 01-Mar-05 01-Mar-05 EPA 6010A <br /> Hexavalent Chromium ND 0.10 mg/kg 1 AC50120 01-Mar-05 01-Mar-05 EPA 7196A <br /> Nickel 41.0 0.500 mg/kg 1 AC50119 01-Mar-05 01-Mar-05 EPA 6010A <br /> ' Lead 22.6 0.500 mg/kg 1 AC50119 01-Mar-05 01-Mar-05 EPA 6010A <br /> Zinc 69.4 0.500 mg/kg 1 AC50119 01-Mar-05 01-Mar-05 EPA 6010A <br /> mg/L=milligrams per Liter=ppm DLR-Defection Limi(jor Purpose ojReporting. <br /> ug/L=micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> result in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> Jonathan Le,Laboratory Director <br /> 7743 N. West Lane. Suile B2 Stockton C/1. 95210 Dhone: 12091 47'-8105 Fcty: (209) 4"7-8148 <br />