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CERTIFICATE OF ANALYSIS <br /> Analytical Laboratory <br /> Monday,May 27,20D2 <br /> TO. Tim Cuellar <br /> Advanced GeoEnviron mental <br /> 837 Shaw Road <br /> Stockton CA 95215 <br /> Aromatic Compound in Gasoline by GC/IVIS <br /> Sample Information <br /> Sample ID 15078-02 Sample Type: Grab <br /> Sample Description MW305-03-02 Protect Name. Stockton Fire Station <br /> Date/Time Sampled. 5/3/2002 10 59 00 AM Sample Matrix Ground Water <br /> ANALYTICAL RESULT ', QAIQC REPORT <br /> F Date LCS Spike MS Spike } <br /> Test Parameter Method DLR Unit Result <br /> AnalyzedY Blank Cone LCS% �Cone °10 MS _MSD RSD <br /> Benzenes ... EPA 8260B 05 rox ug/L ND v;F 05-May-02 ND 125 _._ 1028% 125 1058% 1023% —08%0 8% q <br /> ...»�...�..._.__ _ .. .. _., .-. _ �.�.� .�._ " 12 5 11794% _- ..,._° � <br /> TolueneEPA 8260B 05 _ ug/L W "ND x 05-May-02 ND 12 5- 103 0% 1024% 17% t <br /> I Eth_ylbe_nzene -_ EPA 8260B m 05 _ ug/L w N ND-« 05-May-02 ND 125 _ 103 1% 125 1070% 1006% _ 15% <br /> m,p-Xylene EPA 82608 - 05 _ ^_ ug/L -- ND ( 05-May-02 ND 25� 1023% 25µ 1068% 1001% 1 6% <br /> o.Xylene µ EPA 82606 _ �0 5 -_ ug/L _ - -NO 05-M2y-02 ND 125 1034% 125 1073% 1018% 13% <br /> 1,2-Dichoroethane(DCA) EPA 8260B __0 5 ug/L ND 05-May-02 _ND_ 32 5 101 5% _12 5 101 0% 101 9% 0 2% <br /> _Methyl-t-Butyl Ether(MtBE) - EPA$2608 0 5 _ uglL -� NO 05 May-02 - ND - 12 5 98 7% _ 12 5^� 98 1%_- 97 0% " 0 3%v <br /> LDiisopropyI ether(DIPS) EPA 82608 05 uglL NO 05-May-02 ND 30 1036% mm 30 1022%--- 996% 06% <br /> Ethyl-t-butyl ether(ETRE) EPA 8260B 05 ug/L NO 05-May-02� ND 30 1037% 30 994% 996% 00% <br /> Tert-am I methyl ether(TAME_) EPA 8260E 05 ug/L NO J 05-May-02 ND 30 1033% 30 988% 976% 03% r <br /> g t-Butanol(TBA) EPA 8260B 50 ug/L ND 05-May-02 ND 150 101 1% 150 95 9%_94_5% 04% <br /> .__ <br /> Ethylene Dibromide(EDB) EPA 8260B 05 ug/L NO t 05-May-02 ND 125 1010% 125 1018% 1014% 01% <br /> TPH-Gas _ EPA 8015M/LUFT 50 ug/L __ ND E 05-May-02 ND 500 960% 500 960% 976% 04% I <br /> LTPH-Diesel-. - <br /> EPA 8015MILUFT 140 W ug/L NY t 05-May 02»� ND -- 5000_ . 102 0% Y5000 96 0% 93 0% 0 8% <br /> mg/L=m illigrams per Luer=ppm RSD-i epresent relairve percent different(RPD)between duplicates spike of samples <br /> ug/L=inter ograms per Liter=ppb of Duplicate of Sample <br /> RESP#CVFULLY I ED, C=Composite G=Grab MS/MSD measure of the percent recovery efficiencies ivrthin the matru <br /> LCS measure of the percent recovery of the Laboi atory Control Spike(LCS) <br /> ,IOI th n Ilan Y. Le, Laboratory Director DLR-Detection Limit for the Purpose of Reporting Exceptional sample <br /> matrices of inteifereneces may result in higher detection Bats <br /> I <br /> FPA-Envrrorurieiital Protec ton Agenc)�j u�r Clevelan _.04e",,gjgJsth(N9) 462-0892 Fax (209) 462-7935 Pale 1 of 1 <br />