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ST 11L Submission 2005-05-0322 <br /> Gas/BTEX Compounds by 8015M18021 <br /> SECOR-Sacramento <br /> Attn Chris Bovia <br /> 3017 Kilgore Road, Suite 100 <br /> Rancho Cordova, CA 95670 <br /> Phone (916)861-0400 Fax (916)861-0430 <br /> Project 77CP 68671 03 0006 Received 05/11/2005 15 20 <br /> Conoco Philips Site#8671 <br /> Site 8606 Thorton Rd , Stockton, CA <br /> Batch QC Report <br /> Prep(s) 5030 Test(s) 8021 B <br /> Matrix Spike(MS 1 MSD) Water QC Batch#200510 5111-01 05 <br /> MS/MSD Lab ID 2005-05-0082-001 <br /> MS 2005/05/11-0105-024 Extracted 05/11/2005 Analyzed 05/11/2005 22 54 <br /> Dilution 1 00 <br /> MSD 2005/05/11-0105-025 Extracted 05/11/2005 Analyzed 05/1112005 23 27 <br /> 1 Dilution 1 00 <br /> Compound Conc u Spk Leve Recove % Limits% Flags <br /> MS MSD sample u /L MS MSD I RPD Rec RPD MS MSD <br /> Benzene 48 4 505 109 50 0 946 988 43 65-135 20 <br /> Toluene 487 517 131 50 0 948 1008 61 65-135 20 <br /> Ethyl benzene 476 508 ND 50 0 952 1016 6 5 65-135 20 <br /> Xylene(s) 140 155 ND 150 933 1033 102 65-135 20 <br /> surrogate(s) <br /> Tnfluorotoiuene 493 1504 1 1 500 1986 110081 58-124 <br /> 1 <br /> Severn Trent Laboratories, Inc 05/13/2005 10 35 <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 <br /> A wd d Sevv Tory Pic Tel 925 484 1919 Fax 925 484 1096'www stl-mc com`CA DHS FLAP#2496 Page 7 of 9 <br />