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680 Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 FAX(650)34 9233 <br /> .7ea1u01a .404 N.Wiget Lane Walnut Creek,CA 94598 (510)(916)'921-96%00 988- r FAX(51 988-9673 <br /> 819 Striker Avenue,Suite 8 Sacramento,CA 95834 00 FAX(916(510)))921-0100 <br /> Analyticalnnnum <br /> . <br /> - : ::. ..............................._...-...._.......... _ -: <br /> N Enviros Client Praj. ID: Shell Stockton amp 10 28 97 <br /> 270 Perkins Ave. Sample Descript: SB-1-24 Received: 10/28/97 ` <br /> Sonoma, CA 95476 -0, Matrix: 'SOLID Extracted= 11/03/97 <br /> Analysis Method: EPA 8260 Analyzed: 11/04/97 <br /> Re orted: 11 06 97 <br /> Lab Number: 971 OH60-01._........ �:.—:-::::::-:—::::::.—:-:_- :_::::_.—_�:-- � 1---:::- <br /> Attention.Tom Ma ne _..-- ---..._..._..........._--:::::::-::::....:.:...:..........::..:...: ::::::::::-:::: _......_..._....................:_::_::::::::::................._.............:::::::_.:::::::::::::.:::::::::-:-::::: :::-:::-::::::: <br /> ...—_..... ___...9.._....Y.._ . _......................_ _ ....................: — .. _ .._..._ .....__ <br /> - ._......-........ ... ....... ........ ........................ ..._........................................._ ....._ ......_.-- <br /> QC Batch Number: MS103197MTBEEXA <br /> Instrument ID: H6 <br /> Oxygenate Compounds (EPA 8260) <br /> Y Detection Limit Sample Results <br /> Analyte ;� _ ug/Kg ug/Kg <br /> 25000 N.D. F <br /> Ethanol 5000 N.D.' <br /> t-Butanol 100 N.D. <br /> Metyl t-Butyl Ether(MTBE) 3 <br /> Di-Isopropyl Ether DIPE) 100 N.D. <br /> Ethyl t-Butyl Ether�ETBE) 100 N.D. <br /> 100 N.D. <br /> t-Amyl Methyl Ether(TAME) <br /> i <br /> Surrogates Control Limits% % Recovery <br /> 1,2-Dichloroethane-d4 70 121 93 <br /> - <br /> i <br /> t. <br /> I <br /> Analytes reported as N.D.were not present above the stated limit of detection. <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Mie ory <br /> Project Manager Page' <br /> ` I <br />