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STLSubmission#: 2003-04-0389 <br /> Fuel Oxygenates by 8260B <br /> _ San Joaquin Company, Inc. <br /> Attn.: Dai Watkins <br /> 1120 Hollywood Ave, Suite 3 <br /> Oakland, CA 94602-1459 <br /> Phone: (510) 336-1772 Fax: (510) 336-9119 <br /> Project: 9902.013 Received: 04/15/2003 17:19 <br /> C. Navarra <br /> Batch QC Report <br /> 3 <br /> Prep(s): 5030B... Test(s):82608 <br /> .:_ Matrix Spike(NIS 1 MSD) Water QC Batch`#2003104124-02.66 <br /> MW=10 » M5 Lab ID;.:' 2003-04=0389.-011 <br /> ;. MS. 2003104124=02.65-046 Extracted:04/24/2003 Analyzed 041241200319:00 <br /> Dilution:. 1.00 <br /> MSD:: .2003/04/24-02.65-047 Extracted 0.4!2412003 Analyzed: ....0412412003.19:22 <br /> Dilution: 1.00 <br /> Compound <br /> Conc. uglL 5 k.Leve ecove Limits% Flags <br /> MS MSD Sample ug/1- MS MSD RPD Rec. RPD MS MSD <br /> Methyl ler!-butyl ether 158 148 934 25.0 96.0 56.0 52.6 65-165 20 mso <br /> Benzene 24.9 24,6 ND 25.0 99.6 98.4 1.2 69-929 20 <br /> Toluene 24.1 23.4 ND 25.0 96.4 93,6 2.9 70.130 20 <br /> surrogate(s) <br /> 1,2-131chloroethane-d4 561 543 500 112.2 106.6 76-114 <br /> Toluene-d8 1485 1479 1 500 197.0 195.8 1 Imilo <br /> --1 <br /> Severn Trent Laboratories, Inc. 0510612003 16:18 <br /> !:. STL San Francisco"1220 Quarry Lane,Pleasanton,CA 94566 <br /> Apart al G"am Trani Plc Tel 925 484 1919 Fax 925 484 1096'www.stl-Inc,ccm"CA DHS FLAP#2496 Page 27 of 28 <br /> 1 I <br /> -J <br />