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MMMMMMMMMw <br /> 6 �HWB RO-TECH CERTIFICATE OF ANALYSIS <br /> ,znaly#ical Laboratory <br /> Wednesday,December 04,2001 <br /> TO Mike Luks►c <br /> Port of Stockton <br /> 2201 W Washington St <br /> Stockton CA 95203 <br /> Aromatic Compound in Gasoline by GUMS <br /> Sample Information <br /> Sample ID 18737-02 Sample Type Grab <br /> Sample Description. MW 3-2 Project Nanhe N/A <br /> Date/Tune Sampled 1 1/25/2002 10 35 00 AM Sample Matrix Surface Water <br /> ANALYTICAL RESULT QAIQC REPORT <br /> Date LCS Spike MS Spike <br /> Test Parameter Method DLR Unit Result Analyzed Blank Colic LCS% Colic MS% MSD RSD <br /> Benzene EPA 8260B 05 uglL 120 26-Nov-02 ND 8 1100% 8 1063% 1013% 12% <br /> !Toluene EPA 8260B 05 ug/L 420 26-Nov-02 ND 8 1063% 8 1013% 1025% 03% <br /> Ethylbenzene EPA 8260B 05 ug/L 280 26-Nov-02 ND_ 8 1125% 8 1063% 1050% 03% <br /> m,p-Xylene EPA 8260B 05 uglL 510 26-Nov-02 ND 16 1063% 16 988% 1063% 18% <br /> # o-Xylene EPA 8260B 05 uglL 550 26-Nov-02 ND 8 1045% 8 1050% 1025% 06% <br /> TPH-Gas EPA 8015MILUFT 50 ug/L 4560 26-Nov-02 ND 500 1080% 500 1000% 1020% 05% <br /> inglL=milligrams per Liter=ppm RSD-represent relative percent dieient(RPD)between duplicates spike of samples <br /> ug/L=mitt ogi ams pei Liter=ppb or Duplicate of Sample <br /> REP C ULL U T D, MS/MSD measure ofthepetcent tecoieiy efficiencies within the matrix <br /> C=Composite G=Grab <br /> LCS-measure of rhe percent r ecoti ery of the Laboratory Conti of Spike(LCS) <br /> Jonathan Hao V Le, Laboratory Director DLR-Detection Limit for the Purpose of Reporting Exceptroual sample <br /> matrices or interfeieneces may result in higher detection limits <br /> ec <br /> LP l-Einuaiinrental Protection Agent Vi T X11 "9 462-0892 Fax (209) 462-7935 Pale 1 oft <br />