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Se1551 1551 Industrial Road <br /> i San Carlos CA 94070-4111 <br /> ' <br /> Analytical <br /> ID— (650) 232-9600 FAX(650) 232-9612 <br /> ' Sequoia-Morgan Hill Project 1 Sampled 7/19199 <br /> 885 Jarvis Drive Project Number M907712(Ground Zero) Received 7/21199 <br /> Morgan Hill,CA 95037 Project Manager Wendy Reported 8/2/99 <br /> Total Purgeable Hydrocarbons(C6-C12)and BTEX by DHS LUFTIQuahty Control <br /> Sequoia Analytical-San Carlos <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> ' Batch 9070103 Date Prepared 7122199 Extraction Method EPA 5030E IP/Tl <br /> Blank 9070103-BLKI <br /> Purgeable Hydrocarbons as Gasoline 7/22/99 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 /> ' Surrogate a a a-Trifluorotoluene 100 111 600-140 111 <br /> LCS 9070103-BSI <br /> Benzene 7/22/99 100 8 3S ug/l 700-130 83 5 <br /> ' Toluene 100 839 700-130 83 9 <br /> Ethylbenzene 100 851 700-130 85 1 <br /> Xylenes(total) 300 25 5 700-130 850 <br /> Surrogate a a a-Trrfluorotoluene 100 10 6 600-140 106 <br /> Surrogate <br /> Spike 9070103-MSI <br /> Benzene 7/23/99 100 ND 8 11 ug/l 600-140 811 <br /> ' Toluene 100 ND 709 600-140 70 9 <br /> Ethylbenzene 100 ND 760 600-140 760 <br /> Xylenes(total) 300 ND 227 600-140 757 <br /> ' Surrogate a a a-Trifluorotoluene 100 904 " 600-140 904 <br /> Matrix Spike Du p 9070103-MSD1 <br /> Benzene 7/23/99 100 ND 846 ug/1 600-140 84 6 25 0 422 <br /> ' Toluene 100 ND 742 600-140 742 250 4 55 <br /> Ethylbenzene 100 ND 8 12 600-140 812 250 0 123 <br /> Xylenes(total) 300 ND 242 600-140 807 25 0 129 <br /> Surrogate a a a-Trifluorotoluene 100 996 600-140 99 6 <br /> Batch 9070104 Date Prepared 7122199 Extraction Method EPA 5030B P/T <br /> Blank 9070104-BLKI <br /> Purgeable Hydrocarbons as Gasoline 7/22199 ND ug/l 500 <br /> ' Benzene ND " 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> ' Xylenes(total) ND 0 500 <br /> Surrogate a a a-Tnfluorotoluene 100 104 600-140 104 <br /> LCS 9070104-BS 1 <br /> ' Benzene 7/22/99 100 849 ug/1 700-130 849 <br /> Toluene 100 863 01 700-130 863 <br /> ruoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 4 of 6 <br />