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brive <br /> Sequoia 8A5]arA 5037 <br /> 4 41� <br /> Morgan Hill CA 95037 <br /> (40$) 776-9600 <br /> wo Analytical <br /> FAX(40$) 7$2 6308 <br /> 0 <br /> Blaine Tech Services(Shell) Project Equiva Sampled 11/5/99 <br /> 1680 Rogers Avenue Project Number 620 W Charter Way Received 11/8/99 <br /> San Jose,CA 95112 Project Manager Leah Davis Reported 11/22/99 <br /> Total Purgeable Hydrocarbons (C6-Cl2),BTEX and MTBE by DHS LUFT/Quality Control <br /> Sequoia=Analyttcal--Morgan=Hill <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 9110525 Date Prepared 11/16/99 Extraction Method EPA 50306 IP/T1 <br /> Blank 9110525-BLKI <br /> Purgeable Hydrocarbons 11/16/99 ND ug/1 500 <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tent-butyi ether - ND 2 50 - — <br /> Surrogate a a a-Trtfltuorotoluene 100 8 11 700-130 81 1 <br /> LCS 9110525-BSI. <br /> Benzene 11/16/99 100 729 ug/I 700-130 72 9 <br /> roluene 10 0 720 700-130 72 0 <br /> Ethylbenzene 100 726 700-130 72 6 <br /> Xylenes(total) 300 21 9 700-130 73 0 <br /> Surrogate a a a-Trsfluorotoluene 100 795 700-130 795 <br /> Batch 9110556 Date Prepared _1.1/17_/_9_9 Extraction Method EPA 50306IP/Tl <br /> Blank 91 10556-BLKI <br /> Purgeable Hydrocarbons 11/17/99 ND ue/l 500 <br /> Bcnzenc ND 0 500 - - -- <br /> Toiuent- ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether ND --2-50 <br /> Surrogate a a o-Trtfluorotoluene 100 903 700-130 903 <br /> LCS 9110556-BSI, <br /> Purgeable Hydrocarbons 11/17/99 250 235_ ug/l 70 0-13_0 940 <br /> Surrogate a a a-Trifluorotoluene 100 _ 917 70 0-130 91 7 <br /> Matrix Spike 9110556-MSI M911438-02 <br /> _Purgeable Hydrocarbons 11/17/99 _250 ND 227 ug/l 60 0-140_ 908 <br /> Surrogate a a,a-Trifluorotoluene 100 — 896 700-130 896 <br /> Matrix Spike Dun 9110556-MSDI M911438_-02 <br /> Surrogate a a a-Trifluorotoluene 11117199 100 - 866 ug/1 760-130 866 <br /> Batch 9110557 Date Prepared 11/17/99 Extraction Method EPA 5030B IP/TI <br /> Blank 9110557-BLKI <br /> Purgeable Hydrocarbons 11/17/99 ND ug/l 500 <br /> Benzene ND 0 500 <br /> Sequoia Analytical-Morgan Hill *Refer to end of report for text of notes and definitto <br /> Page 5 of 7 <br />