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1551 Indu5tr]al Road <br /> Sequoia San Carlos CA 94070-411 1 <br /> (650) 232-9600 <br /> Analytical FAX (650) 232-9612 <br /> Blaine Tech Services Project Equiva(2) Sampled 10/27/99 <br /> 1680 Rogers Avenue Project Number 4315 Waterloo,Stockton Received 10/29/99 <br /> San Jose,CA 95112 Project Manager Leah Davis Reported 11/12/99 <br /> Volatile Organic Compounds by EPA Method 8260A/Quahty 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 9110023 Date Prepared__11/3/99 Extraction Method EPA 50308 [P/Tl <br /> Blank 9110023-BLKI <br /> 1,2-Dibromoethane 11/3/99 ND ug/1 200 <br /> 1,2-Dichloroethane ND 11200 <br /> Di-isopropyl ether ND 200 <br /> Ethyl tert-butyl ether ND 200 <br /> Methyl tert-butyl ether ND 200 <br /> Tert-amyl methyl ether ND 200 <br /> _Tert-butyl alcohol _ ND _ 100 <br /> .Surrogate 1,2-Dichloroethane-d4 500 444 760-114 888 <br /> Surrogate Toluene-d8 Soo 47S IF880-110 950 <br /> Blank 9110023-BLK2 <br /> 1,2-Dibromoethane 11/4/99 ND ug/1 200 <br /> *ichloroethane to ND 200 <br /> propyl ether ND 200 <br /> Ethyl tert-butyl ether ND 200 <br /> Methyl tert-butyl ether toND 200 <br /> Tert-amyl methyl ether toND 200 <br /> Tert-butyl alcohol to _ ND 100 <br /> Surrogate 1,2-Dichloroethane-d4 to500 459 760-114 918 <br /> Surrogate Toluene-d8 IF 500 502 880-110 100 <br /> LCS 9110023-BSI <br /> Methyl tert-butyl ether 1113/99 500 433 ug/1 700-130 866 <br /> Surrogate 1 2-Dichloroethane-d4 If Soo 442 it 760-114 884 <br /> Surrogate Toluene-d8 IF500 469 It 880-110 938 <br /> LCS 9110023-BS2 <br /> Methyl tert-butyl ether 11/4/99 Soo 41 6 ug/l 700-130 83 2 <br /> Surrogate 1,2-Dichloroethane-d4 11500 455 1' 760-114 910 <br /> Surrogate Toluene-d8 IF500 489 880-110 978 <br /> Matrix Spike 9110023-MSI L910251-05 <br /> Methyl tent-butyl ether 11/3/99 Soo ND 460 ug/1 60 0440 920 <br /> Surrogate 1,2-Dichloroethane-d4 500 455 760-114 910 <br /> Surrogate Toluene-d8 500 478 880-110 956 <br /> Matrix Spike Dup 9110023-MSD1 L910251-05 <br /> Methyl tert-butyl ether 11/3/99 5_0 0 ND 462 ug/1 600-140 924 25 0 0 434 <br /> Surrogate 1,2-Dichloroethane-d4 500 469 760-114 938 <br /> ,ate Toluene-d8 500 469 880-110 938 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 4 of 5 <br />