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' PRECISIOI* • <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OFANALYSIS <br /> Tuesday,July 12, 2005 <br /> ' Attention: Doug Heard <br /> Kleinfelder, Inc. Report Page 6 of 11 <br /> 2825 Myrtle St. <br /> Stockton, CA 95205 <br /> Volatile Organic Compounds by EPA Method 82606 <br /> Sample Information <br /> Sample ID: 30051 -HA4(5 ') Sample Type: Grab <br /> Laboratory ID: 5070716-10 Project Name: 99 Speedway <br /> Date/Time Sampled: 07-Jul-05 13:27 by Clark 6238 Sample Matrix: Soil <br /> Test Parameter Result DLR Unit Dilution Batch Prepared Analysis Date Method Notes <br /> Benzene ND 5.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> Ethylbenzene ND 5.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> ' Toluene ND 5.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> m,p-Xylene ND 5.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82608 <br /> o-Xylene ND 5.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> Surrogate:Dibromofluoromethane 103% 80-920 <br /> Surrogate:Toluene-d8 97% 81-917 <br /> Surrogate:4-Bromofluorobenzene 97% 74-921 <br /> 1 <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 /> Jonathan Le,Laboratory Director <br /> ' 7743 N. West Lane . Suite B2 Stockton CA. 95210 phone: (209) 477-8103 Fax: (209) 477-8148 <br />