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MOO® STL <br /> 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): 5030B Test(s):8260B <br /> Matrix Spike( MS/MSD ) Soil QC Batch#2005/03/25-1C.62 <br /> MS/MSD Lab ID: 2005-03-0423-008 <br /> MS: 2005/03/25-1C.62-017 Extracted:03/25/2005 Analyzed: 03/25/200509:17 <br /> Dilution: 1.00 <br /> MSD: 2005/03/25-1C.62-044 Extracted:03/25/2005 Analyzed: 03/25/2005 09:44 <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 0.0550 0.0612 ND 0.05 110.0 124.8 12.6 65-165 20 <br /> Benzene 0.0533 0.0508 ND 0.05 106.6 103.6 2.9 69-129 20 <br /> Toluene 0.0567 0.0558 ND 0.05 113.4 113.8 0.4 70-130 20 <br /> Surrogate(s) <br /> 1,2-Dichloroethane-d4 472 511 500 94.4 102.2 76-124 <br /> Toluene-d8 524 527 500 104.8 105.4 75-116 <br /> Severn Trent Laboratories, Inc. 03/28/200514:57 <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 <br /> A part W Severn Trent Plc Tel 925 484 1919 Fax 925 484 1096`www.sti-inc.com"CA DHS ELAP#2496 Page 34 of 39 <br />