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PRECISIOA <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OFANALYSIS <br /> Tuesday,July 12, 2005 <br /> Attention: Doug Heard <br /> Kleinfelder, Inc. Report Page 45 of 103 <br /> 2825 Myrtle St. <br /> Stockton, CA 95205 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sample Information <br /> Sample ID: 31977-P5 -29 ' Sample Type: Grab <br /> Laboratory ID: 5070608-10 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 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 82608 <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 8260B <br /> o-Xylene ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> tert-Amyl Methyl Ether(TAME) ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 82608 <br /> tert-Butyl Acohol(TBA) ND 50.0 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> Diisopropyl Ether(DIPE) ND 2.00 ug/kg 1 AG50802 08-Jul-05 08-Jul-05 EPA 8260B <br /> Surrogate:Dibromofluoromethane 101 % 86-118 <br /> Surrogate: Toluene-d8 97% 88-910 <br /> Surrogate.4-Bromofluorobenzene 96% 86-115 <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 /> �1 <br /> Jonathan Le,Laboratory Director <br /> 7743 N. West Lane . Suite B2 Stockton CA. 95210 phone: (209) 477-8105 Fax: (209) 477-8148 <br />