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885 Jarvis Drive <br /> Sequoia Morgan Hill CA 95037 <br /> 4!!IN (408) 776-9600 <br /> Analytical FAX(408) 782-6308 <br /> Blaine Tech Services(Shell) Project Equiva Sampled 8131/99 <br /> 1680 Rogers Avenue Project Number 1267 Country Club,Stockton Received 9/1/99 <br /> San Jose,CA 95112 Project Manager Ann Pember Re oiled 9/24/99 <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 Anal zed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 9090323 Date Prepared 9113_199 Extraction Method EPA 5030E PIT <br /> Blank 9090323-BLKI <br /> Purgeable Hydrocarbons 9113/99 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 /> Methyl tert-butyl ether ND 2 50 <br /> Surrogate a,a a-Trrfluorotoluene 100 106 700-130 106 <br /> LCS 9090323-BSI <br /> Benzene 9/13/99 too 940 ug/1 700-130 940 <br /> Toluene 100 10 1 700-130 101 <br /> Ethylbenzene too 107 700-130 107 <br /> AtWenes(total) _ 300 _ _ _ 31 9 _ _ 700-130 1_06_ <br /> gate a,a,a-Trrfluorotoluene 100 105 700-130 105 <br /> Matrix Spike 9090323-MSI M909144-07 <br /> Benzene 9/13/99 too 773 180 ug/I 600-140 103 <br /> Toluene " t O 0 ND 11 0 600-140 110 <br /> Ethylbenzene " 100 ND 11 8 600-140 118 <br /> Xylenes(total) _ 300 ND 346 600-140 115 <br /> Surrogate a,a,a-Trrfluorotoluene 100 11 6 700-130 116 <br /> Matrix Spike Dup 9090323-MSD1 M909144-07 <br /> Benzene 9/13/99 100 7 73 16 7 ug/l 600-140 89 7 25 0 13 8 <br /> Toluene t O D ND 9 73 600-140 973 25 0 12 3 <br /> Ethylbenzene too ND 105 600-140 105 25 0 11 7 <br /> Xylenes(total) 300 ND _ 306 600-140 102 25 0 12 0 <br /> Surrogate a a,a-Trrfluorotoluene 100 112 700-130 112 <br /> Batch 9090324 Date Prepared 9113199 Extraction Method EPA 5030B PIT <br /> Blank 9090324-B LKI <br /> Purgeable Hydrocarbons 9/13/99 ND ug/l Soo <br /> Benzene ND 1. 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether ND 250 <br /> Surrogate a s a-Trrfluorotoluene 100 110 700-130 110 <br /> 0 <br /> Sequoia Analytical-Morgan Hill *Refer to end of report for text of notes and definitions <br /> Page 6 of 11 <br />