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CERTIFICATE OF ANALYSIS <br /> Ana/ytica/ Laboratory <br /> Tuesday, July 27, 1999 <br /> Advanced Geo Environmental <br /> 4005 N. Wilson Way <br /> Stockton, CA. 95205 <br /> Sample Information <br /> Sample ID: PE5412-03 Sample Type: Grab <br /> Sample Description: P-3 Project Name: Lodi Airport . <br /> Date/Time Sampled: 6/18/99 2:15:00 PM Sample Matrix: Soil <br /> ANALYTICAL RESULTOA/QC REPORT <br /> Date LCS Spike MS Spike <br /> sTestParameter Method DLR Unit Result Dilution Analyzed Blank Colic. LCS% Conc. MS% MSD RSD s <br /> _,_,: <br /> _ „ , ,... w� w , a �a y <br /> ,Lead(Pb) EPA 6020 1 mg/Kg 21.8 15 2 -Jun-99 ND 0025 960% 0.025 98.4°h 98.0% 0.6°h <br /> TPH Gasoline EPA 8015M/DHS 1 mg/Kg 1.7 1 21-Jun-99 ND 1 95.00% 1 89.0°% 920°% 08% 8 <br /> ;Benzene EPA 8020 5 ug/Kg ND 1 21 Jun-99 ND 5 92.0°6 5 92.0% 94.0% 0.5% 6 <br /> .... , ,�:...:...:.:.. .....,..,,........ :.::. .:.:::::.. :....... ......:....:..:.:........ ....:.�.......:...:.M......:.... .,. ., <br /> Toluene EPA 8020 5 ug/Kg ND 1 21-Jun-99 ND 5 96.0% 5 102.0% 960% 1.5% 5 <br /> Ethylbenzene EPA 8020 5 ug/Kg ND 1 21 Jun-99 ND 5 98.0% 5 10409% 96.0% 20% g <br /> i Xylenes,Total EPA 8020 5 ug/Kg 6.8 1 21-Jun-99 ND 10 960% 10 1000°% 1100% 24% 6. <br /> ,Methyl-t-Butyl Ether EPA 8020 5 ug/Kg ND 1 21-Jun-99 ND 5 90.0°% 5 90.0°% 980% 21°.6 <br /> `mgtL `milligrams per Luer ppm DLR-Detection Limitfor the Purpose of RSU represent relative pe,cent different(RPD)berneen duplicates spike ofsamples <br /> vglL micrograms per Liter —ppb Reporting. Excepfroual sample matrices or or Duplicate ofsaniple <br /> interferences may result in higher defection MS/MSD-measure of the percent recovery efficiencies within the matrix <br /> C=Composite G=Grab limits <br /> LCS-measure ojlhe percent recovery ofthe Laboratory Control Spike(LCS) <br /> RESP FUL TED, <br /> Jonathan Hao Y. Le,Laboratory Director <br /> 7:/a-l;nvrmneenfa!Pr mecnon AgwmyMethod. Page I of I <br />