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40 PRECISIOO <br /> ENVIRO-TECH I <br /> Analytical Laboratory CERTIFICATE OFANALYSI <br /> Tuesday,July 12—, 2-0-07 <br /> Attention: Doug Heard <br /> Kleinfelder, Inc. <br /> 2825 Myrtle St. Report Page 78 of I <br /> Stockton, CA 95205 <br /> Volatile Organic Compounds by EPA Method 82606 <br /> Sample Information <br /> Sample ID: 31971 TP6, 8-COMP Sample Type: Grab <br /> Laboratory ID: 5070608-17 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 /> Trichloroethene ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> Trichlorofluoromethane ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> 1,2,3-Trichloropropane ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> 1,3,5-Trimethylbenzene ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> 1,2,4-Trimethylbenzene ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> Vinyl acetate ND 20.0 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> Vinyl chloride ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> Methyl tert-butyl Ether(MtBE) ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> Ethyl tert-Butyl Ether(ETBE) ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> m,p-Xylene ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82606 <br /> tert-Amyl Methyl Ether(TAME) ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> o-Xylene ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> tert-Butyl Acohol(TBA) ND 50.0 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> Dusopropyl Ether(DIPE) ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> Surrogate:Dibromofluoromethane 103% 86-118 <br /> Surrogate:Toluene-d8 92% 88-110 <br /> Surrogate:4-Bromofluorobenzene 93% 86-115 <br /> mg/L=milligrams per Liter— m <br /> PP DLR=Detection Limit for Purpose of Reporting. <br /> up'L=micrograms per Liter=pph Exceptional sample matrices or interferences may <br /> result in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> (J/Ot-r� <br /> Jonathan Le,Laboratory Director <br /> 7743 N. West Lane . Suite B2 Stockton CA. 95210 phone: (209) 477-8103 Fax: (209) 477-8148 <br />