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Sequoia 1551 Industrial Road <br /> San Carlos CA 94070-411 1 <br /> m%ff Analytical FAX(650) 232-9600 <br /> (650) 232-96112 <br /> Sequoia-Morgan Hill Project 1 Sampled 7/27/99 <br /> 885 Jarvis Dnve Project Number 9070121 Received 7/31/99 <br /> Morgan Hill,CA 95037 Project Manager KayvanKim ai Reported 8/9/99 11 01 <br /> Volatile Organic Oxygenated Compounds by EPA Method 8260A/Quality 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 /> Matrix Soike(continued) 9080025-MSI L907304-09 <br /> Surrogate 1,2-Dtchloroethane-d4 8/5/99 500 489 ug/1 760-114 978 <br /> Matrix Spike Dun 9080025-MSD1 L907304-09 <br /> Methyl tert-butyl ether 8/5/99 500 ND 460 ug/l 600-140 920 250 103 <br /> Surrogate 12-Dtchloroethane-d4 r, Soo 505 f, 760-114 101 <br /> Batch 9080034 Date Prepared 8/6/99 Extraction Method EPA 5030E PIT <br /> Blank 9080034-BLKI <br /> Ethanol 8/6/99 ND ug/l 1000 <br /> Tert-butyl alcohol ND 200 <br /> Methyl tert-butyl ether ND 200 <br /> Di-isopropyl ether ND 200 <br /> Ethyl tert-butyl ether ND 200 <br /> Tert-amyl methyl ether ND 200 <br /> Surrogate 12-Dichloroethane-d4 Soo 400 760-114 800 <br /> LCS 9080034-BSI <br /> Methyl tert-butyl ether 8/6/99 50 0 61 2 ug/1 700-130 122 <br /> Surrogate 12-Dtchloroethane-d4 11500 541 el760-114 108 <br /> Matrix Spike 9080034-MSI L907304-11 <br /> Methyl tert-butyl ether 8/6/99 Soo ND 505 ug/I 600-140 101 <br /> Surrogate 1 2-Dtchloroethane-d4 11500 501 760-114 100 <br /> Matrix Spike Dup 9080034-MSD1 L907304-11 <br /> Methyl tett-butyl ether 8/6/99 50 0 ND 48 4 ug/l 600-140 968 250 4 25 <br /> Surrogate 1,2-Dtchloroethane-d4 500 502 760-114 100 <br /> Sequoia Analytical -San Carlos *Refer to end of report for tert of notes and definitt <br /> Page 24 of 25 <br />