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PRECISIO <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE 0F,4NALYSI <br /> Tuesday,July 12, 2005 <br /> Attention: Doug Heard I <br /> Kleinfelder, Inc. Report Page 10 of 103 <br /> 2825 Myrtle St. , <br /> Stockton, CA 95205 <br /> Metals by EPA 6000/7000 Series Methods ' <br /> Sample Information <br /> Sample ID: 31981 P2-29' Sample Type: Grab <br /> Laboratory ID: 5070608-04 Project Name: 99 Speedway <br /> Date/Time Sampled: 05-Jul-05 00:00 by Doug Heard Sample Matrix: Soil <br /> Test Parameter Result DLR Unit Dilution Batch Prepared Analysis Date Method Note <br /> Silver ND 0.500 mg/kg 1 AG51101 11-Jul-05 12-Jul-05 EPA 6010A <br /> Arsenic ND 0.500 mg/kg 1 AG51101 11-Jul-05 12-Jul-05 EPA 6010A <br /> Barium 450 0.500 mg/kg 1 AG51101 11-Jul-05 12-Jul-05 EPA 6010A <br /> Cadmium 0.294 0.100 mg/kg 1 AG51101 11-Jul-05 12-Jul-05 EPA 6010A <br /> Chromium 106 0.500 mg/kg 1 AG51101 11-Jul-05 12-Jul-05 EPA 6010A <br /> Mercury ND 0.00200 mg/kg 1 AG51117 11-Jul-05 11-Jul-05 EPA 7470A <br /> Lead 11.6 0.500 mg/kg 1 AG51101 11-Jul-05 12-Jul-05 EPA 6010A <br /> Selenium ND 0.500 mg/kg 1 AG51101 11-Jul-05 12-Jul-05 EPA 6010A <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 /> 1 <br /> Jonathan Le,Laboratory Director ' <br /> 7743 N. West Lane . Suite B2 Stockton CA. 95210 rhone: (209) 477-8105 Fax: (209) 477-8148 <br />