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Cf�`l11MO G�Oo ��f CQCI `I I CERTIFICATE OFANALYSIS <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: PE5413-01 Sample Type: Grab <br /> Sample Description: SB-1 201 Project Name: Lodi Airport <br /> Date/Time Sampled.• 6/16/99 10:10:00 AM Sample Matrix: Soil <br /> „ <br /> ANALYTICAL RESULT QA/QCREPORT <br /> Date LCS Spike MS Spike <br /> Test Parameter Method DLR Unit Result Dilution ::Analyzed Blank Cone LCS% Cone MS% MSD RSD <br /> Lead)Pb) EPA 6020 1 mg/Kg 6.0 15 24-Jun-99 ND 0.025 960% 0.025 98.4% 96.0% 06°% fi <br /> TPH Gasoline EPA 8015M/DHS 1 mg/Kg 52 1 23-Jun-99 ND 1 950% 1 89.0/ 920% 08°% <br /> Benzene EPA 8020 5 ug/Kg 112 1 +. 23Jun-99 ND 5 92.0% 5 92.0% 94.0% 0.5°� <br /> Toluene EPA 8020 5 ug/Kg 38 1 23Jun-99 ND 5 960°/. 5 1020% 96.0°/ 15°% q <br /> Ethylbenzene EPA 8020 5 ug/Kg 15 1 23-Jun-99 ND 5 980°/. 5 1040/ 96.0% 20% <br /> ::.. ..,.,,.«..... ,.a.,....,.,..�,,:.,. S <br /> .Xylenes,Total EPA 8020 5 ug/Kg 47 1 23-Jun-99 ND 10 96.0% 10 1000% 110.0% 2.49% c <br /> Methyl-t-Butyl Ether)MtBE) EPA 8020 5 ug/Kg ND 1 23-Jun-99 ND 5 90.0% 5 90.0% 98.00% 2.1% <br /> mgrL nulligrarrn per Liter=ppm DLR-Detection Lmnt(or the Purpose of RSD-represeur dative percent different(RPD)benreen duplicates spike ofsamples • <br /> ug/L=micrograms per Liter=ppb Reporting. C;.xceptional sample matrices ar or Duplicate of Sample <br /> interfereneces may result in higher detection AY&W.3r)-measrme ofthe percent recovery efficiencies within the matrix <br /> -C=Composite G=Grab [emits <br /> LCS-measure of the percent recovery ofthe Laboratory Control Spike(LCS) <br /> RESPE TFUL TED, <br /> Jonathan Hao V. Le,Laboratory Director <br /> EPA-EnvirorrmentalProtedian Agency Method Page I of 1 <br />