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PRECISIA) is <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OFANALYSIS <br /> Tuesday,July 12, 2005 <br /> Attention: Doug Heard <br /> Report Page 83 of 103 <br /> Kleinfelder, Inc. <br /> 2825 Myrtle St. <br /> Stockton, CA 95205 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> ' <br /> Sample ID: 31970 TP7 -COMSample Information <br /> P Sample Type: Grab <br /> Laboratory ID: 5070608-18 Project Name: 99 Speedway <br /> Date/Time Sampled: 01-Jul-05 00:00 by Doug Heard Sample Matrix: Soil <br /> Test Parameter Result DLR Unit Dilution Batch Prepared Analysis Date Method Notes <br /> Acetone ND 100 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82608 <br /> Benzene ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82608 <br /> Bromobenzene ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82608 <br /> Bromochloromethane ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82608 <br /> Bromodichloromethane ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82608 <br /> Bromoform ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> methane ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> Bromo <br /> BromoND 20.0 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> none <br /> 2 08-Jul-05 08-Jul-05 EPA 82608 <br /> n-Butylbenzene ND 2.00 ug/kg 1 AG5080 <br /> sec-Butylbenzene ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82606 <br /> tert-Butylbenzene ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> Carbon disulfide ND 20.0 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82608 <br /> Carbon tetrachloride ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82608 <br /> Chlorobenzene ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82608 <br /> Chloroethane ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> 2-Chloroethylvinyl ether ND 20.0 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82608 <br /> Chloroform ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82608 <br /> Chloromethane ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82608 <br /> 2-Chlorotoluene ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82608 <br /> 4-Chlorotoluene ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82608 <br /> Dibromochloromethane ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> 1,2-Dibromo-3-chloropropane ND 2.00 ug/kg <br /> 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> 1,2-Dibromoethane(EDB) ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> Dibromomethane ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> 1,2-Dichlorobenzene ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82608 <br /> 1,3-Dichlorobenzene ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> 1,4-Dichlorobenzene ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> Dichlorodifluoromethane ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82608 <br /> 1,1-Dichloroethane ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82606 <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) 477-8105 Fax: (209) 477-8148 <br />