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W <br /> r-NWH K@-Tr-C,H CERTIFICATE of AN ALY>sIS <br /> Analytical Labvratary <br /> Tuesday,Mardi 12,2002 m <br /> TO: William Little re, <br /> Advanced GeoEnv9ran mental w <br /> 837 Shaw Road <br /> Stockton CA 95215 <br /> LO <br /> Aromatic Compound in Gasoline by GC1MS <br /> Sample Information CD <br /> Sample ID: 14494-03 Sample Type: Grab p <br /> m <br /> Sample Description: Tank#2 North End F- <br /> P P Project Name: 4040 E.Main ST, <br /> Datell'ime'Sampled: 3/6/2002 3AO.-OO PM Sample Matrix: Soil 00 <br /> ANALYTICAL RESULT � QAIQC REPORT <br /> �.r..,... ,..-.....,..e...�..�....... --- . .�._.,._._.��. �:. Date LCS Spike MS Spike ._.,..,,�,.......�..,...,....,_,.-...,_-�.>R <br /> Test Parameter Method DLR Unit Result Analyzed Blank Cone. LCS% Cone, MS% MSD RSD <br /> Benzene EPA 82608 - uglkg ASD 08-Feb-02 ND 12-8 90.0% 13 97.1% 94.4% 0.7% <br /> Totuene FPA 8260B 5 uglkg ND 08-Feb-02 ND 12.8 90.0% 12.8 100.6% 100.0% 0.2% <br /> Ett benzene EPA 82606 5 ugtkg 13 08-Feb-02' +ND 128 88.0% 12.8` 109.496 95.2% 3.5% <br /> rn,p-Xylene EPA8260B 5 uglkg 17 08-Feb-02 ND 25,6 87.5% 25.6 97.2% 97.7% 0.1% m <br /> *-Xylene EPA 82MB 5 uglkg NO• 08-Mar-02 ND 12.8 89.5% 12.8 96.9% 98.0% 0.3% � <br /> 1,2-Diehloroethane•-64(Surrogate) %Recovery 38%. O <br /> 4-BFBiSurrogate) %Recovery 94% - _ <br /> nrg/L =nrilltgrams per tiler=pps R,SD-r epresent mlrttive percent differmu(RPDJ berwees duplicates spike of soarples <br /> ugiL=micrograurs per Liter=ppb or Dnpheate of Sample <br /> tSE FUL TTBD, 8f&lrf-Mmenntre ofthe percent reco°gry effleeircles within filentnlrrx <br /> C=Composite G=G'rah <br /> LCS-sieasure of the percent regia ery of the Ltrboratory Castrol Spike 1LCb7 <br /> .r na an Hao V Le,Laboratory Director DLR-Detection Limit for t/re Purpose of Rrportirrg. Fxeeptionrfl sample <br /> inatrices or interfe vneces may resrift irr higher detection f yw(3 <br /> D <br /> G <br /> M <br /> N <br /> EPA Ea vironnrentolPro�ection.9gerey,llethod. SAS'SYarrdrtrrtAlethad fa Erarniruetion of K`nter 1F'trsrer+rrler t8tli Ed. page 1 pf•1 <br /> 545 F_ Cleveland St. Suite A Stockton. CA 95204 Tei.: (209) 462-0892 Fax: (209) 462-7935 <br />