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885 Jarvis Drive <br /> Sequoia Morgan Hill CA 95037 <br /> (408) 776-9600 <br /> Analytical FAX (408) 782-6308 <br /> Blaine Tech Services(Shell) Project Equiva Sampled 11/2/99 <br /> 1680 Rogers Avenue Project Number 6131 Pacific Ave Stockton Received 11/3/99 <br /> San Jose,CA 95112 Project Manager Leah Davis Reported 11/17/99 <br /> Total Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUFT/Quality Control <br /> Sequoia Analytical-Morgan Hill <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limn % Notes* <br /> LCS 9110411-BSI <br /> Purgeable Hydrocarbons _ _ 11/12/99 250 _ _ 27_0 u_g/l _ _ 700-130 10_8 <br /> Surrogate a a a-Trifluorotoluene 100 12 4 700-130 12.1 <br /> _Matrix Spike 9110411-MS1 M911413-02 <br /> Purgeable Hydrocarbons_ 11/12199_ 250 ND--- 297 ug/l 600-140 119 <br /> Surrogate a a a-Trifluorotoluene 100 12 7 700-130 127 <br /> Matrix Spike_Dup 9110411-MSD1 M911413-02 <br /> Purgeable Hydrocarbons 11/12/99 250 SID 262 ug/l 600-140 105 250 125 __ <br /> Surrogate a a a-7rt�luorotoluene _ 100 <br /> 14 5 70 0-130 1.15 3 <br /> Batch 9110453 Date Prepared 11/15/99 Extraction Method EPA 50306 IP/Tl <br /> Blank 9110453-BLKI <br /> Wnc <br /> bleHydrocaibont 11/15/99 ND ugt1 500 ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> _Methyl tent-b_uty3 etherN_D _ __250 <br /> Surrogate a a a-Trifluorotoluene 16-0 10 3 70 0-130 103 <br /> LCS 9110453-BSI <br /> Benzene 11/15/99 100 102 ug/l 700-130 102 <br /> Toluene too 967 700-130 96 7 <br /> Ethylbenzene too 9 73 700-130 973 <br /> Xylenes(total) "_ 300 _ 28 5 _ 700-130 950 <br /> Surrogate a,a a-Trifluorotoluene 100 102 700-130 102 <br /> LCS Dun 9110453-BSD1 <br /> Benzene 11/15/99 too 105 ug/l 700-130 105 250 290 <br /> Toluene 100 996 700-130 996 250 295 <br /> Ethylbenzene too 100 700-130 100 250 2 74 <br /> Xylenes(total) _ 300 296 700-130 98 7 250 3 82 <br /> Surrogate a,a a-Trifluorotoluene 100 106 700-130 106 <br /> Batch 9110454 Date Prepared 11/15/99 Extraction Method EPA 50306IP/Tl <br /> Blank 9110454-BLKI <br /> Purgeable Hydrocarbons 11/15/99 ND ug/l 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> hen�ene ND 0 500 <br /> Sequoia Analytical- Morgan Hill *Refer to end of report jot tc rt of notes and definitrons <br /> Pag,,5 of 8 <br />