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Sequoia los, Industrial Road <br /> 1. San Carlos,CA 94070-4111 <br /> (650) 232-9600 <br /> Analytical <br /> FAX(650)232-9612 <br /> V <br /> Sequoia-Morgan Hill Project: Sequoia-Morgan Hill Sampled: 9/3/99 <br /> 885 Jarvis Drive Project Number: M909315/ATC Received: 9/14/99 <br /> Morgan Hill,CA 95037 Project Manager: Kayvan Kimyai Reported: 9/15/99 <br /> ff sq""WuiO-31115'1 <br /> rganit"Ozygenafed Compounds by �'A Method 82603 Qual t Gon#ro � ;. <br /> �� a S+equoiaaiyhcalSan Carlos <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> jAnalyte Analyzed Level Result Result Units Recov.Limits % Limit % Notes* <br /> Batch: 9090051 Date Prepared: 9/10/99 Extraction Method: EPA 5030B fP/T1 <br /> Blank 9090051-BLK1 <br /> Ethanol 9/10/99 ND ug/1 1000 <br /> Tert-butyl alcohol ND 200 <br /> Methyl tert-butyl ether ND 2.00 <br /> Di-isopropyl ether ND 2.00 <br /> Ethyl tert-butyl ether ND 2.00 <br /> Tert-amyl methyl ether ND 2.00 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 48.4 " 76.0-114 96.8 <br /> Blank 9090051-BLK2 <br /> Ethanol 9/14/99 ND ug/1 1000 <br /> Tert-butyl alcohol ND 200 <br /> Methyl tert-butyl ether ND 2.00 <br /> r- ''•opropyl ether " ND " 2.00 <br /> �,-"tert-butyl ether ND 2.00 <br /> Tert-amyl methyl ether ND 2.00 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 47.5 76.0-114 95.0 <br /> LCS 9090051-BSI <br /> Methyl tert-butyl ether 9/10/99 50.0 47.5 ug/1 70.0-130 95.0 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 49.5 it 76.0-114 99.0 <br /> LCS 9090051-BS2 <br /> Methyl tert-butyl ether 9/14/99 50.0 46.2 ug/1 70.0-130 92.4 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 49.4 76.0-114 98.8 <br /> Matrix Spike 9090051-MSI L909076-08 <br /> Methyl tert-butyl ether 9/10/99 50.0 ND 46.3 ug/1 60.0-140 92.6 <br /> Surrogate: 1,2-Dichloroethane-d4 " 50.0 49.4 It <br /> 76.0-114 98.8 <br /> Matrix Spike Duo 9090051-MSD1 L909076-08 <br /> Methyl tert-butyl ether 9/10/99 50.0 ND 45.7 ug/1 60.0-140 91.4 25.0 1.30 <br /> Surrogate: 1,2-Dichloroethane-d4 " 50.0 49.3 " 76.0-114 98.6 <br /> Batch: 9090066 Date Prepared: 9/15/99 Extraction Method: EPA 5030B [P/T1 <br /> Blank 9090066-BLKI <br /> Ethanol 9/15/99 ND ug/1 1000 <br /> Tert-butyl alcohol " ND , " 200 <br /> Methyl tert-butyl ether ND. 2.00 <br /> Di-isopropyl ether ND 2.00 <br /> FF,'--I tert-butyl ether ND 2.00 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions. <br /> Page 5 of 7 <br />