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ST T Submission: 2005-03-0627 <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): 50308 Test(s):82608 <br /> Matrix Spike ( MS/MSD j Soil QC Batch#2005/03/26-lA.62 <br /> MS/MSD Lab ID: 2005-03-0547-029 <br /> MS: 2005/03/26-1A.62-049 Extracted:03/26/2005 Analyzed: 03/26/200519:49 <br /> Dilution: 1.00 <br /> MSD: 2005/03/26-1A.62-015 Extracted:03/26/2005 Analyzed: 03/26/2005 20:15 <br /> Dilution: 1.00 <br /> Compound Conc. mg/Kg Spk.Level Recovery% Limits% Flags <br /> MS MSD Sample mg/Kg MS MSD RPD Rec. RPD MS MSD <br /> Methyl tert-butyl ether 0.0524 0.0475 ND 0.05 104.8 95.0 9.8 65-165 20 <br /> Benzene 0.0479 0.0533 ND 0.05 95.8 106.6 10.7 69-129 20 <br /> Toluene 0.0525 0.0588 ND 0.05 105.0 117.6 11.3 70-130 20 <br /> Surrogate(s) <br /> 1,2-Dichloroethane-d4 512 506 500 102.4 101.2 76-124 <br /> Toluene-d8 538 551 500 107.6 110.2 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 Sevem Trent Plc Tel 925 484 1919 Fax 925 484 1096'www.stl-inc.com"CA DHS ELAP#2496 Page 36 of 39 <br />