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�® TT Submission: 2005-03-0627 <br /> 1►� i L <br /> Gas/BTEX/MTBE by 8260B (C6-C12) <br /> Cambria Environmental Emeryville <br /> Attn.: Aubrey Cool <br /> 5900 Hollis Street, Ste. A <br /> Emeryville, CA 94608 <br /> Phone: (510)420-3336 Fax: (510)420-9170 <br /> Project: 207-1359-001 Received: 03/18/2005 17:20 <br /> Shell SAP Number 136143 <br /> Site: 4315 Waterloo Street, Stockton, CA <br /> Batch QC Report <br /> Prep(s): 5030B Test(s): 8260B <br /> Laboratory Control Spike Soil QC Batch#2005/03/25-1 C.62 <br /> LCS 2005/03/25-1 C.62-045 Extracted: 03/25/2005 Analyzed: 03/25/2005 07:45 <br /> LCSD <br /> Compound Conc. mg/Kg Exp.Conc. Recovery% RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Methyl tert-butyl ether(MTBE) 0.0499 0.05 99.8 65-165 20 <br /> Benzene 0.0541 0.05 108.2 69-129 20 <br /> Toluene 0.0570 0.05 114.0 70-130 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 491 500 98.2 76-124 <br /> Toluene-d8 529 500 105.8 75-116 <br /> Severn Trent Laboratories, Inc. 03/28/200514:57 <br /> STL San Francisco"1220 Quarry Lane,Pleasanton,CA 94566 <br /> A part of Severn Tient PIC Tel 925 484 1919 Fax 925 484 1096"www.stl-inc.com"CA DHS ELAP#2496 Page 29 of 39 <br />