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9 • <br /> PRECISION <br /> CoENVIRO-TECH <br /> AnaIrticalLaboraloty CERTIFICATE OF ANALYSIS <br /> Tuesday,April 12,2005 <br /> Attention: Francis X. Bean <br /> Kleinfelder,Inc. <br /> Report Page 28of39 <br /> 2825 East Myrtle Street <br /> Stockton, CA 95205 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sample Information <br /> Sample ID: 34754-E-EW Sample Type: Grab <br /> Laboratory ID: 5041107-05 Project Name: SJRTD <br /> DateJTime Sampled: 11-Apr-05 11:48 by Francis X.Bean Sample Matrix: Soil <br /> [Test Parameter Result DLR Unit Dilution Brach Prepared Analysis Date Method Notes <br /> 1,1,1-Trichloroethane ND 2.00 ug/kg 1 AD51110 11-Apr-05 11-Apr-05 EPA 8260B <br /> Trichloroethene ND 2.00 ug/kg 1 AD51110 11-Apr-05 11-Apr-05 EPA 8260B <br /> Trichlorofluoromethane ND 2.00 ug/kg 1 AD51110 11-Apr-05 11-Apr-05 EPA 82608 <br /> 1,2,3-Tdchloropropane ND 2.00 ug/kg 1 AD51110 11-Apr-05 11-Apr-05 EPA 8260B <br /> 1,3,5-Trimethylbenzene ND 2.00 ug/kg 1 AD51110 11-Apr-05 11-Apr-05 EPA 8260B <br /> 1,2,4-Tdmethylbenzene ND 2.00 ug/kg 1 AD51110 11-Apr-05 11-Apr-05 EPA 8260B <br /> Vinyl acetate ND 20.0 ug/kg 1 AD51110 11-Apr-05 11-Apr-05 EPA 8260B <br /> Vinyl chloride ND 2.00 ug/kg 1 AD51110 11-Apr-05 11-Apr-05 EPA 8260B <br /> Methyl tert-butyl Ether(MtBE) ND 2.00 ug/kg 1 AD51110 11-Apr-05 11-Apr-05 EPA 8260B <br /> Ethyl tert-Butyl Ether(ETBE) ND 2.00 ug/kg 1 AD51110 11-Apr-05 11-Apr-05 EPA 8260B <br /> m,p•Xylene ND 2.00 ug/kg 1 AD51110 11-Apr-05 11-Apr-05 EPA 8260B <br /> o-Xylene ND 2.00 ug/kg 1 AD51110 11-Apr-05 11-Apr-05 EPA 8260B <br /> tert-Amyl Methyl Ether(TAME) ND 2.00 ug/kg 1 AD51110 11-Apr-05 11-Apr-05 EPA 8260B <br /> tert-Butyl Acohol(TBA) ND 50.0 ug/kg 1 AD51110 11-Apr-05 11-Apr-05 EPA 8260B <br /> Diisopropyl Ether(DIPE) ND 2.00 ug/kg 1 AD51110 11-Apr-05 11-Apr-05 EPA 8260B <br /> Surrogate:Dibromofluoromethane 104% 86-118 <br /> Surrogate:Toluene-d8 99% 88-110 <br /> Surrogate:4-Bromofluorobenzene 100% 86-115 <br /> mg'L=milligrams per Liter=ppm DLR=Deleclion Limit.for Purpose ofReporling. <br /> jig,2=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 Law, ,Suite B2 Stockton CA. 95210 nhone: (209) 477-8105 Fax: (209) 477-8148 <br />