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LMHW1 HOO -TrC int CERTIFICATE OF ANALYSIS <br /> Analytical 1_a60Pratary <br /> Tuesday, February 22,2000 <br /> TO William Little <br /> Advanced GeoEnvIronmental, <br /> 4005 N Wilson Way <br /> Stockton, Ca 95205 <br /> Sample Information <br /> Sample ID: AD0210-10 Sample Type: Grab <br /> Sample Description: MW2-10 Project Name- Bogettis Orchard Service <br /> ' 218/00 2 15 00 PM Soil <br /> DateJTime Sampled. Sample Matrix <br /> ANALYTICAL RESULT QAIQC REPORT <br /> Date LCS Spike MS Spike <br /> Test Parameter Method DLR Unit Result Analyzed Blank Conc. LCS% Conc. MS% MSD RSD <br /> TPH-Gasoline EPA 8015M/DHS 1 mg/Kg ND 11-Feb-00 ND 05 960% 05 920% 940% 05% <br /> TPN-Diesel EPA 8015M/DHS 10 mg/Kg ND 11-Feb-00 ND 100 950% 100 950% 1050% 25% <br /> Methyl t-Butyl Ether(MtBE) EPA8260 5 ug/Kg ND 11-Feb-00 ND 40 950% 40 1050% 1025% 0 6% <br /> Dilsopropyl ether(DIPE) EPA8260 5 uglKg ND 11-Feb-00 ND 40 900% 40 1050% 1025% 06% <br /> Ethyl-t-butyl ether(ETBE) EPA8260 5 ug/Kg ND 11-Feb-00 ND 40 1050% 40 1025% 1050% 06% <br /> I <br /> Tert-amyl methyl ether(TAME) EPA8260 5 ug/Kg ND 11-Feb-00 ND 40 900% 40 900% 925% 07% <br /> t-Butanol(TBA) EPA8260 5 ugtKg ND 11-Feb-00 ND 40 950% 40 975% 875% 27% <br /> j Benzene EPA 8260 5 ug/Kg ND 11-Feb-DO ND 40 950% 40 950% 975% 06% <br /> Toluene EPA 8260 5 ug/Kg ND 11-Feb-00 ND 40 1000% 40 975% 950% 06% <br /> Ethyl Benzene EPA 8260 5 ug/Kg ND 11-Feb-00 ND 40 1050% 40 1025% 1050% 06% <br /> Xylene,Total EPA 8260 5 ug/Kg ND 11-Feb-DO ND 80 1000% 80 1125% 1138% 03% <br /> ing/L=milligrams per Liter=ppm DLR-Detection Ltmrt far the Purpose of Reporting RSD-represent relative percent different(RPD)behneen duplicates spike of samples <br /> ug/L=micrograms per Liter=ppb Exceptional sample matrices or interferences may result in or Duplicate of Sample <br /> higher detection limits MS/MSD-measure of the percent recovery efficiencies it ithm the matriv <br /> C=Camporrte G=Grab <br /> LC4-measure of the percent recovery of the Laboratory Control Spike(LCS) <br /> ' RESPE TFU ITTED, <br /> Jonathan Mao v Le,Laboratory Director <br /> EPA-Environmental Protection Agency Method Page 1 W-1 <br /> SM-StandardMethodfor Examination 54&te Hftw,(tiJFaffi1dL9t Suite A Stockton, CA 95204 Tel (209) 462-0892 Fax (209) 462-7935 <br />