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c��e�c�sQo� • e i <br /> CERTIFICATE OF ANALYSIS <br /> Analytical Laboratory <br /> Wednesday,September 04,2002 <br /> TO. William Little <br /> Advanced GeoEnvlronmental <br /> 837 Shaw Road <br /> Stockton CA 95215 <br /> Aromatic Compound In Gasoline by GC/MS <br /> Sample Information <br /> Sample ID 16638-07 Sample Type Grab <br /> Sample Description. VW-5D 083002 Project Name: COS-Fire Station#2 <br /> Date/Trme Sampled- 8/30/2002 1 3100 PM Sample Matrix. Ground Water <br /> ANALYTICAL RESULT -tm_ QA/QC REPORT A Date LCS Spike MS Spike <br /> Test Parameter Metliod DLR Unit Result Analyzed Blank Cone LCS% Cone MS% MSD_ RSD <br /> Benzene EPA 826_0_6_ 05 ug/L-- NO s _30-Aug-02 NO 8 1029% 8 1013% 1025% �0 3% t <br /> Tpluene_ _��� M - -- _ _ EPA 82606 05 uglL ND ' 30-Aug-02 µ ND_ 8 1075% ~ 8 1_02_5% w_ 105 0% 06% µ <br /> Ethylbenzene A EPA 82608 05 uglLND 30-Aug-02 ND 8 102 9% 8 '102 5% 1000% 06% <br /> m,p-Xylene _ EPA 82606 05 uglL_ NO 30-Aug-02 NO _ 16 1053% 16 1063% 1031% �0 7% <br /> o-Xylene— �^ EPA 8260B 05 uglL _ ry NO ;__i6-Aug-62___ <br /> ND 8 104 3% A 8 _102 5% _106 3% 0 9%° <br /> 1,2-Dichoroethane(DCA) EPA 82_606 05 uglL _ND 1 30-Aug-02- NO 8 1008% 8� 100_3% 1000% _0_1%0 <br /> Methyl t-Butyl Ether(MtBE) w. _ EPA 82608 05 uglL� 16 1. 30-Aug-02 NO 8 1063% 8w 1025% 1050% 06% <br /> Dusopropyl ether(DIPS) EPA 82608= 05 uglL ND I 30-Aug-02 NO 18 1000% _ 18 944% 1000% 14% ; <br /> Ethyl-t-butyl ether(ETRE) EPA 82606_ 05 uglL ND 30MAug-02- -ND 18 1002% 18 1056% 1111% 13% <br /> Tert-amyl methyl ether(TAME) EPA 82608 05 ug/L ND q 30-Aug-02 ND_ 18 94 3% 1894 4% 10_0 0%_ 1 4% <br /> _a <br /> t-Butanol(TBA) _ EPA 8260E 50 ug/L ND�-�w 30 Aug 02 ND 104 92 0% 100 92 0%C— 98 R6 1 6-i. <br /> Ethylene Dibromide(EDB) - EPA 8260B 05 �ug1L NO ( �30-Aug-02 NO - 8 960% 8 988% �96 3% -0 6% <br /> TPH-Gas -EPA 8415MILUFT 50 uglL ND A3D-Aug-D2 ND 500 i08 0% 500 110_0% 10_4 0_% 14% <br /> . 5.,.,. <br /> TPH Dreselm _EPA 8015MILUFT 100 u_g1L _ _ ND _ 30 Aug 02 N€0 5000 96 0% 5000_ 98 0%_ 102 0%w 1 0% <br /> nig/L=nu igi anis per I tier=ppm RSD s epi eseni i'!alive pet i ext different(RPD)between duplicates spike of samples <br /> ug/L=utterogiants per Liter =ppb of Duplicate of Sample <br /> R S EC FULL M C=Compostte G=Grnb <br /> ED, MS/MSD-measure of the peiccnt recarei y cJ�uuicies a rehrn the rnaiitx <br /> LCS-nzeastir e of the pe,cestr it cns,e,} of the Laboinlon Conti of Sprke(LCS) <br /> DLR-Dc lectiait Lunn foi lltc Pur pint of Repa ung Ficeptional sample <br /> gnat ran Hao V Le, Laboratory Direetoi matrices or inteifeieneas iiia irsttk rn hlghei detection wants <br /> 11',1 Lm tionmenialIliotection 1guic i(E Clevelandt6`1i,,Bultitivd.tit61*ttrrnptGAi'i85204c,,'nTeiklt(209) 462-0892 Fax (209) 462-7935 Page 1 of <br />