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6rRMUZHON <br /> [Nwo no—r-C H CERTIFICATE OF ANALYSIS <br /> Analytical Laboratory Tuesday, February 22,2000 <br /> TO William Little <br /> Advanced GeoEnvtronmental, <br /> 4005 N Wilson Way <br /> Stockton, Ca 95205 <br /> Sample Information <br /> Sample ID. AD0210-15 Sample Type: Grab <br /> Sample Description. MW4-20 Project Name: Bogettis Orchard Service <br /> Date/Time Sampled: 02/09/2000 1145 00 AM Sample Matrix- Soil <br /> ANALYTICAL RESULT QA/QC REPORT <br /> Date LCS Spike MS Spike <br /> Method DLR Unit Result Analyzed Blank Conc. LCS% Cone, MS% MSD RSD <br /> Test Parameter Met y <br /> TPH-Gasoline EPA 8015MIDHS 1 mg/Kg NO 11-Feb-00 NO 05 960% 05 920% 940% 05% <br /> TPH-Dlesel EPA 8015M/DHS 10 mg/Kg NO 11-Feb-00 NO 100 950% 100 950% 1050% 25% <br /> Methyl t-Butyl Ether(MtBE) EPA8260 5 ug/Kg ND 11-Feb-00 NO 40 950% 40 1050% 1025% 06% <br /> Dilsopropyl ether(DIPE) EPA8260 5 uglKg NO 11-Feb-00 NO 40 900% 40 1050% 1025% 06% <br /> Ethyl-t-butyl ether(ETBE) EPA8260 5 ug/Kg NO 11-Feb-00 NO 40 1050% 40 1025% 1050% 06% <br /> Tort-amyl methyl ether(TAME) EPA8260 5 ug/Kg ND 11-Feb-00 ND 40 900% 40 900% 925% 07% <br /> t-Butanol(TBA) <br /> EPA8260 5 ug/Kg ND i 1-Feb-00 ND 40 950% 40 975% 875% 27% <br /> Benzene EPA 8260 5 ug/Kg ND 11-Feb-00 NO 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 NO 11-Feb-00 NO 40 1050% 40 1025% 1050% 06% <br /> t <br /> Xylene,Total EPA 8260 5 ug/Kg ND 11-Feb-00 NO 80 1000% 80 1125% 1138% 03% <br /> mg/L=milligrams per Liter=ppm DLR-Detection Limit for the Purpose of Reporting RSD-represent relative percent different(RPD)between duplicates spike of samples <br /> ug/L=micrograms per Liter—ppb Exceptional sample matrices or rnierfereneces may result to or Duplicate of Sample <br /> C=Composite G—Grab higher detection lrmrts MS/MSD-measure of the percent recovery efficiencies a ithm the matrix <br /> LCS-measure of the percent recovery of the Laboratory Control Spike(L(S) <br /> � RESP FU ITTED, <br /> Jonathan Hao V Le,Laboratory Director <br /> f <br /> EPR-Environmental Protection Agency Method Page 1 of 1 <br /> SM-Standard Method for Examrnanon�f l at ff 'efieveJr" �t Suite A Stockton, CA 95204 Tel (209) 462-0892 Fax (209) 462-7935 <br />