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Drive <br /> Sequoia 885 ill CA 95037 <br /> 4 <br /> ID Morgan Hill CA 95037 <br /> rf <br /> Analytical (408) 772-9600 <br /> fAX (408) 782-6308 <br /> Blaine Tech Services(Shell) Project Equrva Sampled 7127199 <br /> 1680 Rogers Avenue Project Number 2575 Country Club, Stockton Rtxeived 7128199 <br /> San Jose,CA 95112 Project Manager Ann Pember Reported 8118/99 <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 Analvzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Matrix Spike(continued) 9080241-MS1 9070064-03 <br /> Xylenes(total) 8/9199 300 ND 270 ug/l 600-140 900 <br /> Surrogate a a,a-Tr¢fluorotoluene 100 9 10 700-130 91 0 <br /> Matrix Spike Dup 9080241-MSDI 9070064-03 <br /> Benzene 8/9/99 too ND 850 ug/l 600-140 85 0 25 0 571 <br /> Toluene 100 ND 8 10 600-140 81 0 250 599 <br /> Ethylbenzene 100 ND 850 600-140 850 25 0 460 <br /> Xylenes(total) 300 N_D_ 25 0 600-140 83 3 25 0 773 <br /> Surrogate a a,a-Trefluorotoluene 100 800 700-130 800 <br /> Batch 9080247 Date Prepared 819/99 Extraction Method EPA 5030B IP/Tl <br /> Blank 9080247-B LK 1 <br /> 4ure,able Hydrocarbons 819/99 ND ug/l 500 <br /> ne ND 0 500 <br /> ne ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xvlenes(total) ND 0 500 <br /> Methvl tert-butyl ether ND 250 <br /> Surrogate aaa-Trrfluorotoluene 100 9 70 700-130 970 <br /> LCS 9080247-BSI <br /> Benzene 8/9199 10 0 9 10 ug/1 700-130 91 0 <br /> Toluene 100 103 700-130 103 <br /> Ethylbenzene 100 105 700-130 105 <br /> Xylenes(total) 30 0 _ __ _ 330 700-130 110 <br /> Surrogate a a a-Trifluorotoluene 100 9 70 700-130 970 <br /> Matrix Spike 9080247-MSI 9070110-02 <br /> Benzene 8/9/99 100 260 112 ug/l 600-140 86 0 <br /> Toluene 100 200 11 2 600-140 920 <br /> Ethylbenzene too 240 125 600-140 101 <br /> Xylenes(total)_ _ _"_ 300 880 39_0 600-140 101 <br /> Surrogate aaa-Tr:fluarotoluene 100 950 700-130 95 0 <br /> Matrix SpikeDup 9080247-MSD1 9070110-02 <br /> Benzene _ 8/9/99 100 260 11 1 ugJl 600-140 85 0 250 1 17 <br /> roluene 100 200 11 8 600-140 98 0 250 632 <br /> Ethylbenzene too 240 124 600-140 100 250 0 995 <br /> -Xylenes(total) _ --300- 880 400 600-140 104 25 0 293 <br /> Soate a a-Trifluorotoluene 100 9.10 700-130 94 0 <br /> Sequoia Analytical-Morgan Hill *Refer to end of report for tent of notes and definitions <br /> Page 13 of 18 <br />