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0ENW�RO-TCMCM CERTIFICATE OF ANALYSIS <br /> Analytical LathvratCry <br /> 11"ed►resday,September 04,1002 <br /> TO- William Little <br /> Advanced GeoEnvlronmental <br /> 837 Shaw Road <br /> Stockton CA 95215 <br /> Aromatic Compound in Gasoline by GCIMS <br /> Sample Information <br /> Sample ID 16638-02 Sample Type- Grab <br /> Sample Description• MW-3 083002 Protect Name COS-Fire Station#2 <br /> Date/Time Sampled- 8/30/2002 12 32 00 PM Sample Matrix• Ground Water <br /> ANAL YTICAL RES ULT �_ �QA//QC REPORT <br /> °,..Date LCS Spike MS Spike <br /> Test Parameter T �wa Metliod DLR M Unit Result _Analyzed TBlank Conc LCS% Cone MS% MSD RSD <br /> Benzene EPA 82608 05 uglL ND _30-A_ug-02 Na 8 1029% 8 101 3% 102 5% 4 3% <br /> Toluene _ m EPA 82608 W 0 5 ug1L ND <br /> __ <br /> 30-Aug 02 ND 8iD7 5% 8~- _ 102 5% 1050% 0 6%m�� <br /> Ethylbenzene EPA 82608 -- 05 ug/L ~µ _ ND 30-Aug-02 ND 8 1029% 8 1025% 1_00_0_% �0 61% 1 <br /> m,p-Xylene - EPA 8260B 05 ug/L - - ND 30-Aug-02 ND 16 1053% 16 1063% 10_3 1% 07% <br /> o-Xylene EPA 8260B 05 ug/L ND 30-Aug-02 ND 8 1043% 8 1025% 1063% _0 9% <br /> , 1,2-Dichoroethane(DCA) mm - EPA 8260B 0_5 uglL ND } 30-Aug-02 _ND 8 _100 8% 8 1003% 1000% 0 1 <br /> Methyl t-Butyl Ether(MtBE) µ_-_ EPA 8260B � _ 05 uglL ND - 30-Aug-02 ND 8 1063% 8 1025% 1050%_ 0 6% <br /> Dusopropyl ether(RIPE) EPA 82608 05 ug/L_ ND 30-Aug-02 ND 18 1000% 18 -94-4% 100 0% _.1 4% __ <br /> Ethyl-t butyl_ether{ETBE} EPA 82608 05 uglL ND 30-Aug-D2 ND 18 1002% 18 105 6% 1111% _ 1 3% <br /> S <br /> Tert-amyl methyl ether(TAME) W EPA 82648 - 0 5 ug/L ND w 30-Aug-02 NDµ W 1$ 94,3% 18 944% 1000% <br /> 1 4% ► <br /> t-Butanol (TBA) A� _ _ EPA_8_2608 5_0 uglL ND 30-Aug-02� ND_�_ 100 m 92 0% 100 92 0% _ _98 0% _ 160% <br /> Ethylene Drbromide(EDB) EPA 8260B 0 5 ug/L ND r # 30-Aug-02ND $ _ 96o% 8 988% 976H. d 0 6°1° <br /> TPH-Gas r - - w� EPA 8015M/LUFT.p 50 uglL ND 30-Aug902vND 500 -108 0% 50D 1100% 104 0% v 1 4%_°_ m <br /> TPH-Diesel m EPA 8015M/LUFT 100 ug/L ND 30-Aug-02 ND 5040 960% 5000 9,90% 1420% 1 016 A$ <br /> ing/1 =rntlligi nin+per I iter—ppm RSD-icpresent relative percerrf different(RPD)hemi ca rluphcarcc eprhe of samples <br /> ug/L=uiicrngrrrnrs pci LNcr =ppG <br /> or Duplrcate of Sample <br /> RF4P .0 LILLY I D, C=Cmrryrnune G=GrrrU MS/rb15D-measure ofthepeiceor recovery elfrcrenue� %inhur the nratrra <br /> LCS-measure of the percerir recovery of lire 1 aboi mor) COruro!SpAe{LCS} <br /> DLR-Detection Lrnrrt for rhe Purpntie of Reporting 1 tcepuonal crdnple <br /> Jouath n Han V Le, Laboratory Director matrices or urterfereneces rrrm reurh rn hrghu dctrcrron Irnius <br /> 1_f'? IrnrrarnrcntalProuctrorr fterrc�J CIEV81aD(�1tib�tfrk �rt11E#rWPr/ 6i+�CnitilrrAt'1852�4cr'nt� �Rr/!(409) 462-0892 Fax (209) 462-7935 Page l of! <br />