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.y <br /> C �1M0 °� OO l���Gi1 CERTIFICATE OF ANALYSIS <br /> Analytical Laboratory <br /> Friday, October IS, 1999 <br /> TO: William Little <br /> Advanced GeoEnvironmental, <br /> 4005 N. Wilson Way <br /> Stockton, Ca. 95205 <br /> Sample Information <br /> Sample ID: PE6167-12 Sample Type: Grab <br /> Sample Description: D6 Project Name: Quick&Save 7200 S.Eldo <br /> Date/Tinte Sampled: 10/13/99 12:15:00 PM Sample Matrix: Soil <br /> ANALYTICAL RESULT QA/QCREPORT <br /> j Date LCS Spike MS Spike <br /> Test Parameter Method DLR Unit Result Analyzed Blank Cone. LCS% Conc. MS% MSD RSD% <br /> TPH-Gasoline EPA 8015M/DHS 1 mg/Kg 625 13-Oct-99 ND 500 112.0% 500 96.0% 98.0% 0.5% <br /> Methyl t-Butyl Ether(MtBE) EPA8260 5 ug/Kg ND 13-Oct-99 ND 70 114.3% 70 114.3% 125.7% 2.4% <br /> Diisopropyl ether(DIPE) EPA8260 5 ug/Kg ND 13-Oct-99 ND 70 107.1% 70 117.1% 125.7% 1.8% <br /> Ethyl-t-butyl ether(ETBE) EPA8260 5 ug/Kg ND 13-Oct-99 ND 70 102.9°k 70 107.1% 110.0% 0.7%i Tert-amyl methyl ether(TAME) EPA8260 5 ug/Kg ND 13-Oct-99 ND 70 101.4% 70 110.0% 111.4% 0.3% <br /> t-Butanol(BA) EPA8260 5 ug/Kg ND 13-Oct-99 ND 70 102.9% 70 92.9% 100.0% 1.9% <br /> Benzene EPA 8260 5 ug/Kg ND 13-Oct-99 ND 20 110.0% 20 110.0% 125.0% 3.2% <br /> Toluene EPA8260 5 ug/Kg 6950 13-Oct-99 ND 20 90.0% 20 110.0% 135.0% 5.1% <br /> Ethyl Benzene EPA 8260 5 ug/Kg 373550 13-Oct-99 ND 20 100.0% 20 125.0% 140.0% 2.8% <br /> 'Xylene,Total EPA 8260 5 ug/Kg 6500 13-Oct-99 ND 40 105.0°h 40 137.5% 135.0% 0.5% <br /> nig/L=milligrams per Liter=ppm DLR-Detection Lirnit for the Purpose of Reporting. RSD-represent relative percent different(RPD)between duplicates spike of sarnples <br /> ug/L=nrierograrns per Liter=ppb F-weptional sample matrices or interfereneces may result in or Duplicate of Sample <br /> C=Composite G=Grab higher detection limits MS/MSD-measure of the percent recovery efficiencies within the matrix <br /> LCS-measure of the percent recovery of the Laboratory Control Spike(LCS) <br /> RESPE-fTFUL��Y TTED, <br /> Jonathan Hao Y.Le,Laboratory Director <br /> I'I'. -1 lo r„nnnirN'd Protection Agency A4etlrod.��-�- Page I of I <br /> �n/-.brandndnlar,ndfortamu;natran� tgr�w�lr�i7Cf� {�l��t. Suite A Stockton, CA 95204 Tel.: (209) 462-0892 Fax: (209) 462-7935 <br />