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a <br /> ' r[R w0 RC0-Tr-CH CERTIFICATE OF ANALYSIS <br /> Analytical Laboratory <br /> Friday, October 15, 1999 <br /> T0: William Little <br /> Advanced GeoEnvironmental, <br /> 4005 N. Wilson Way <br /> Stockton, Ca. 95205 <br /> Sample Iuforttratinri <br /> Sample ID: PE6167-07 Sample Type: Grab <br /> Sample Description: D 1 Project Nanre: Quick&Save 7200 S. Eldo <br /> Date/Time Sampled: 10/13/99 12:15:00 PM Sample Matrix: Soil <br /> ANALYTICAL RESULT QA/QC REPORT <br /> Date LCS Spike MS Spike <br /> Test Parameter Method DLR Unit Result Analyzed Blank Conc. LCS% Conc. MS% MSD RSD% <br /> a., TPH-Gaso[ine EPA 8015M/DHS 1 mg/Kg NO 13-Oct-99 ND 500 112.0% 500 96.0% 98.0% 0.5% <br /> Methyl t-Butyl Ether(MtBE) EPA8260 5 ug/Kg NO 13-Oct-99 ND 70 114.3% 70 114.3% 125.7% 2.4% <br /> Diisopropyl ether(DIPS) EPA8260 5 ug/Kg NO 13-Oct-99 ND 70 107.1% 70 117.1% 125.7% 1.8% <br /> u'.:g <br /> I .� Ethyl-t-butylether(ETBE) EPA8260 5 ug/Kg ND 13-Oct-99 ND 70 102.9% 70 107.1% 110.0% 0.7% <br /> Tert-amyl methyl ether(TAME) EPA8260 5 ug/Kg NO 13-Oct-99 ND 70 101.4% 70 110.0% 111.4% 0.3% <br /> t-Butanol(TBA) EPA8260 5 ug/Kg NO 13-Oct-99 ND 70 102.9% 70 92.9% 100.0% 1.9% <br /> Benzene EPA 8260 5 ug/Kg NO 13-Oct-99 ND 20 110.0% 20 110.0% 125.0% 3.2% <br /> r� <br /> Toluene EPA 8260 5 uglKg ND 13-Qct-99 ND 20 90.0% 20 114.0% 735.0% 5.1% <br /> Ethyl Benzene EPA 8260 5 ug/Kg NO 13-Oct-99 ND 20 100.0% 20 125.0% 140.0% 2.8% <br /> ` Xylene,Total EPA 8260 5 ug/Kg NO 13-Oct-99 ND 40 105.0% 40 137.5% 135.0% 0.5% <br /> mg/L=rnilligrann per Liter=ppm DLR-Delecriorr l imif for the Pinpose of Reporting. <br /> RSD-represent relative percent different(RPD)between duplicnfes spike of samples <br /> ug/L=micrograms per Liter=ppb F_eceplional sample matrices or interfer'eneces may resrrll in or Duplicate of Sample <br /> bhigher detection limits h4S/MSD-measure of the percent r'ecorery of rciencies within the matrix <br /> C=Composite G=Grab <br /> LCS-nrcasur'e of the percent recovery of the Laboratory Control Spike(LCS) <br /> i�. <br /> ;j RESPE UUF YWS,UI3�l}IITTLD, <br /> Jonathan Hao v Le, Laboratoryir <br /> Dector <br /> 1. <br /> EPA-Environnrrcntal Protcctio+r Agency Metlrnrl `_ _.�. .._ ___�__ _� -_.-•---- - - Page 1 of I <br /> 5A1-57arrdardh4elkorljorG�'nmivalion'� Er`7t1C1 'V1t �ll�t Suite A Stockton, CA 95204 Te[.: (209) 462-0892 Fax: (209) 462-7935 <br />