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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650)364-9600 FAX(650)364-9233 <br /> a_� <br /> 404 N.Wlget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue,Suite 8 Sacramento,CA 95834' (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd,North,Ste.D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos,CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> ATC Associates,Inc. Project: ATC Projects Sampled: 3/11199 <br /> 1117 lone palm Ave., Suite B Project Number: Glover Property 17861.0001 Received: 3/12/99 <br /> - Modesto,CA 95351 Project Manager: Jeanne Homsey Reported: 3/29/99 <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 /> Batch: 9030051 Date Prepared: 3/16/99 Extraction Method: EPA 5030E [P/Tl <br /> -Blank 9030051-BLKI <br /> Ethanol 3/16/99 ND ug/1 3000 <br /> 1:_sTert-butyl alcohol ND It <br /> 200 <br /> jMethyl tert-butyl ether ND 2.00 <br /> e'Di-isopropyl ether ND 2,00 <br /> Ethyl tert-butyl ether IF <br /> ND " 2.00 <br /> ITert-amyl methyl ether IF <br /> ND " 2.00 <br /> f:_�'Surrogate: 1,2-Dichloroethane-d4 50.0 56.2 rr76.0-114 112 <br /> Blank 9030051-BLK2 <br /> Ethanol 3/17/99 ND ug/i 3000 <br /> 'Tert-butyl alcohol " ND 200 <br /> Methyl tert-butyl ether ND 2.00 <br /> kk'`"Di-isopropyl ether ND 2.00 <br /> tert-butyl ether ND 2.00 <br /> -amyl methyl ether ND 2.00 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 51.5 76.0-114 103 <br /> €===LCS 9030051-BS1 <br /> Methyl tert-butyl ether 3/16/99 50.0 50.6 ug/1 70.0-130 101 <br /> -Surrogate' <br /> • 1,2-Dichloroethane-d4 Or <br /> '50.0 54.0 76.0-114 108 <br /> LCS 9030051-BS2 <br /> Methyl tert-butyl ether 3/17/99 50.0 55.4 ug/1 70.0-130 111 <br /> Surrogate: 1,2-Dichloroethane-d4 of 50.0 50.8 IF76.0-114 102 <br /> Matrix Spike 9030051-MSI L903121-01 <br /> Methyl tert-butyl ether 3/16/99 50.0 ND 54.5 ug/1 60,0-140 109 <br /> Surrogate: 1,2-Dichloroethane-d4 Or <br /> 50.0 52.5 IF76.0-114 105 <br /> Matrix Spike Dup 9030051-MSD1 L903121-01 <br /> Methyl ter-butyl ether 3/16/99 50.0 ND 54.4 ug/l 60.0-140 109 25.0 0 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 52.8 76.0-114 106 <br /> i <br /> ,4uoia Analytical-San Carlos *Refer to end of report far text of notes and definitions. <br /> ( 1 <br /> f•.--J Page 10 of 11 <br />