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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 2of17 <br /> 2825 Myrtle St. <br /> Stockton, CA 95205 <br /> Metals by EPA 6000/7000 Series Methods <br /> Sample Information <br /> Sample ID: 27738-T2I-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 /> Cadmium 0.100 0.100 mg/kg 1 AD51909 19-Apr-05 19-Apr-05 EPA 6010A <br /> Chromium 16.8 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 18.8 0.500 mg/kg 1 AD51909 19-Apr-05 19-Apr-05 EPA 6010A <br /> Lead 20.8 0.500 mg/kg 1 AD51909 19-Apr-05 19-Apr-05 EPA 6010A <br /> Zinc 37.9 0.500 mg/kg 1 AD51909 19-Apr-05 19-Apr-05 EPA 6010A <br /> mgt—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 /> t�j <br /> Jonathan Le,Laboratory Director <br /> .'743 N. West Lane. Suite B2 Stockton CA. .952.10 Dhone: (209) 477-8105 Fax: (209) 477-8148 <br />