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®® STL submission#:2003-09-0313 <br /> Gas/BTEXFuel Oxygenates by 8260B (High Level) <br /> a" Cambria Environmental Sonoma <br /> Attn.:Ana Friel <br /> 270 Perkins Street <br /> Sonoma, CA 95476 <br /> Phone: (707)442-2700 Fax: (707)442-2700 <br /> Project: Consultant ID 245-1660 Received: 09/09/2003 11:05 <br /> Shell Incident Number 97422510 <br /> Site: 1160 W.Yosemite Ave.,Manteca <br /> z <br /> : <br /> L va o :Co trlS <br /> yz 9�1"" 2• � 1x.,- � <br /> Compound Conc. mg/Kg Exp.Conc. Recovery% RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Benzene 9940 9960 10000 99.4 99.6 0.2 69-129 20 <br /> Toluene 10100 10200 10000 101.0 102.0 1.0 70-130 20 <br /> Methyl tert-butyl ether(MTBE) 9840 9550 10000 98.4 95.5 3.0 65-165 20 <br /> A <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 230 223 250 92.0 89.2 76-130 <br /> Toluene-d8 256 257 250 102.4 102.8 78-915 <br /> Severn Trent Laboratories, Inc. 09/16/200310:52 <br /> STL San Francisco-1220 Quarry Lane,Pleasanton,CA 94566 <br /> A pmt of Sevem Trent Pte Tel 925 484 1919 Fax 925 484 1096"www.stl-inc.com"CA DHS FLAP#2496 Page 8 of 9 kr <br /> I <br />