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Ml MM r r MM <br /> Od5VREKOSDON <br /> CHWH RO-YMN CERTIFICATE OF ANALYSIS <br /> Analytical Laboratory <br /> Wednesday,Deceinber 04,2002 <br /> TO Mike Luks►c <br /> Port of Stockton <br /> 2201 W Washington St <br /> Stockton CA 95203 <br /> Aromatic Compound in Gasoline by GC/MS <br /> Sample Iliformation <br /> Sample ID 18737-01 Sample Type: Grab <br /> Sample Description MW 3-1 Project Na►ne NIA <br /> Date/Time Sampled 11/25/2002 10 25 00 AM Sample Matrix Surface Water <br /> ANALYTICAL RESULT QA/QC REPORT <br /> Date LCS Spike MS Spike <br /> Nest Parameter Method DLR Unit Result Analyzed Blank Colic LCS% Colic MS% MSD RSD <br /> Benzene EPA 8260E 05 uglL 10 26-Nov-02 ND 8 1100% 8 1063% 1013% 12% <br /> Toluene EPA 8260B 05 uglL 25 26-Nov-02 ND 8 1063% 8 1013% 1025% 03% <br /> Ethylbenzene EPA 8260E 05 uglL 26 26-Nov-02 ND 8 112 5% 8 1063% 1050% 03% <br /> m,p-Xylene EPA 8260B 05 ug/L 63 26-Nov-02 ND 16 1063% 16 988% 1063% 18% <br /> o-Xylene EPA 8260B 05 uglL 30 26-Nov-02 ND 8 1045% 8 1050% 1025% 06% <br /> TPH-Gas EPA 8015MILUFT 50 uglL 560 26-Nov-02 ND 500 1080% 500 1000% 1020% 05% <br /> mg/L=milligrams per Liter=ppm RSD-represent relative percent differ ent(RPD)between driphcates spike of samples <br /> ug/L—micrograms per Liter=ppb or Duplicate of Sample <br /> E FUL M TED, C=Composite G=Grab MS/MSD-measure of the percent i ecoi ery efficiencies within the matrix <br /> LCS-measure of the pei cent i ecoi ery of the Laboratory Conti of Spike(LCS) <br /> DLR-Detection Ltmtt for the Purpose of Reporting Exreptional sample <br /> J nalltan Hao Y. Le, Laboratory Director <br /> matrices or interfei eneces may result nn higher detection hnuts <br /> cc <br /> EPA-EntiiionmentalPiotertionAgen--5ff8'V ClevelaD462.0892 Fax (209) 462-7935 Pagel oft <br />