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PRECISIO4 <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OFANAL YSIS <br /> Tuesday,July 12, 2005 <br /> Attention: Doug Heard <br /> Kleinfelder, Inc. <br /> 2825 Myrtle St. Report Page 2 of 11 <br /> ' Stockton, CA 95205 <br /> ' Volatile Organic Compounds by EPA Method 8260B <br /> Sample Information <br /> Sample ID: 30058-HA (5 ') Sample Type: Grab <br /> Laboratory ID: 5070716-03 Project Name: 99 Speedway <br /> Date/Time Sampled.• 07-Jul-05 11:30 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 82608 <br /> m,p-Xylene ND 5.00 ug/kg 1 AG50802 08-Jul-05 08-Juk05 EPA 8260B <br /> o-Xylene ND 5.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> ' Surrogate:Dibromofluoromethane 102% 80-120 <br /> Surrogate:Toluene-d8 97% 81-117 <br /> Surrogate:4-Bromofluorobenzene 95% 74-121 <br /> mgE=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 /> (J*/O-Z� <br /> Jonathan Le,Laboratory Director <br /> ' 7743 N. West Lane . Suite B2 Stockton CA. 95210 phone: (209) 477-8103 Fax: (209) 477-8148 <br />