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i <br /> I / Sequoia q7 7 O1 '� 885 Jarvis Drive <br /> v 1Cl Morgan Hill,CA 95037 <br /> (408) 776-9600 <br /> Analytical FAX(408) 782-6308 <br />+ <br /> ATC Associates,Inc.-Modesto Project: - Sampled: 12/2/99 <br /> 1117 Lone Palm Avenue Project Number: Stockton Fire Station#3 Received: 12/3/99 <br /> Modesto,CA 95351-1502 *; Project Manager: Jeanne Homsey Reported: 12/13/99 <br /> -Volatile Organic Oxygenated Compounds by EPA Method 8260A/Quality:Control «' <br /> Sequoia'Analytical.; SaneCarlos <br />?' Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov.Limits % Limit % Notes* <br /> Batch: 9120029 Date Prepared:,12/7/99 Extraction Method: EPA 5030B IP/Tl <br /> I Blank 9120029-BLK1 <br /> Ethanol 12/7/99 ND ug/i 1000 <br /> I. 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 d ND 2.00 <br /> Tert-amyl methyl ether ND 2.00 <br /> j. Surrogate: 1,2-Dichloroethane-d4 50.0 43.0 76.0-114 86.0 <br /> US ', 9120029-BS1 <br /> Methyl tert-butyl ether 12/7/99 50.0 50.0 ug/I 70.0-130 100 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 47.1 76.0-114 94.2 <br /> j rix Spike 9120029-MS1 L911275-10 <br /> 46yl tert-butyl ether _ = 12/7/99 50.0 ND 52.4 ug/1 60.0-140 105 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 45.6 . 76.0-114 91.2 <br /> Matrix Spike DUD 9120029-MSD1 L911275-10 <br /> Methyl tert-butyl ether 12/7/99 50.0 ND 52.9 ug/1 60.0-140 106 - 25.0 0.948 <br /> t Surrogate: 1,2-Dichloroethane-d4 " 50.0 46.8 76.0-114 93.6.. <br /> 1 <br /> I <br /> 1 <br /> ih <br /> Sequoia Analytical-Morgan Hill * *Refer to end of report for text of notes and definitions. <br /> i <br /> Page 5 of 6 <br />