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� i• � � i• i, � � i• � 1• i•� ttttttt� � ■tl�■ w■■■ � s �■ <br /> fr-fN 9 K - lTIMH CERTIFICATE OF ANALYSIS <br /> 0!:!!5Analytical LaLPoratory <br /> Mon day,May z7,200 <br /> TO Tim Cuellar <br /> Advanced GeoEnvironmenta( <br /> 837 Shaw Road <br /> Stockton CA 95215 <br /> Aromatic Compound in Gasoline by GCIMS <br /> Sample Information <br /> Sample ID 15078-04 Sample Type Grab <br /> Sample Description MW 105-03-02 Project Name: Stockton Fire Station <br /> DatelTime Sampled. 5/3/2002 12 37 00 PM Sample Matrix Ground Water <br /> ' AN.ALYTICAL RESULT �-- 4� QA/QC REPORT <br /> Date LCS Spike MS Spike <br /> ITest Parameter Method DLR Unit Result r Analyzed Blank Cone LCS% Cone, MS% MSD RSD <br /> Benzene EPA 82608 05 _ uglL NDS _ 05-May-02 ND 125 1028% 125 1058% 1023% 08% 1 <br /> Toluene - -- EPA 82605 — --0 5 �v ug/l -_ - ND 05-May-02ND 12 5103 0% - 125 1094% 1024% 1 7% <br /> 1 Ethylbenzene EPA 8260B 05 ug1L ND 05-May-02 ND 125 1031% 125 1070% 1006% 15% <br /> 1 m,p-Xylene _EPA 8260B 05 ug1L ND J 05-May-02 ND _25 1023% 25_y 106_8%_ 1001% 1_6% <br /> o-Xylene W EPA 8260B 05 �- -Aug1L � ND 05-May-02 NO 125 1034% 125 1073% 1018% -�1 3%m- � <br /> 1 2-Dtchoroethane(DCA) _ EPA 826QB 0 5 ug/L ND 05-May-02 NO 125 - 1015% 125 1010% 1019% <br /> -0 2% <br /> Methyl t-Butyl Ether(MtBE)_ m _ EPA 82606 05 - uglL ND� �- v05-May-Q2 NO » 125 � 987% 125 981% 970% 03% 1 <br /> Dusopropyl ether(DIPS) EPA 82608 0 5 uglL ND 05-May-02 ND 30 103 6% —30102-2-%-- 99 6% 0 6% <br /> i Ethyl-t-butyl ether(ETRE) EPA 8260B 05 uglL ND 05-May-02 NO 30 _ 1037% 30 994% - 996% 0 6% <br /> -Tert-amyl methyl ether(TAME) EPA 8260B 0 5 ug1L ND 05-May-02 NO 30 1033% 30 988% 976% 03% <br /> i t-Butanol(TBA) --� � EPA 82608 p� 9 50 - �- ug/L ND � 05-May-02 ND 150 101 1°1° 150 959% 945% 04% <br /> 1 1% x ...w...... a .n.v .... ...P <br /> Ethylene Dibromide(EDB) EPA 82608 0 5 uglL ND s 05-May-02 NO 125 1010% 125 1018% 1014% 01% <br /> PH-Gas EPA 8015WLUFT 50 ug/L ND a 05-May-02 ND 500 960% 500 960% 976% 04% ° <br /> 'TPH-Diesel EPA 8015MILUFT 100 uglL ND 05-May-02 NO 5000 1020% 5000 960% 930% 0 8% t <br /> mg/L=milligrams per Liter=ppm RSD-represent i elative percent different(RPD)between duplicates spike of samples - -� <br /> ug/L=nuci ograms per Liter=ppb or Duplicate of Sample <br /> 7Jonth4' <br /> TF LLY T MSJMSD-measure of the percent recovery e�aencies within the mainx <br /> C=Composue G=GrabLLS measure of the percent recovery of the Lata atory Control Spike(LCs) <br /> Hao V Le, Laboratory Director DLR-Detection Limit for the Purpose of Reporting Fxcepnonal sample <br /> matrices of interfereneces may result in higher detection linurs <br /> F_PA Envirnnmentnl Pioterttun Agenc � , - Clevelant tni UdtCe�jorf tQC&njmatr�iAy`J-%�fU`+ewye, 8th g1 462-0892 Fax !2091 462-7935 Page l of l <br />