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STLSubmission M 2004-04-0059 <br /> Gas/BTEX Fuel Oxygenates by 8260B (C6-C12) <br /> Cambria Environmental Emeryville <br /> Attn.: Dan Lescure <br /> 5900 Hollis Street, Ste. A <br /> Emeryville, CA 94608 <br /> Phone: (510)420_33—&-Fax:,(510)42091.70 - <br /> Project: 246-7097 Received: 04/02/2004 12:32 <br /> 98996181 <br /> Site: 2494 E. Fremont St. Stockton, CA <br /> .,;;k <br /> `�� <br /> Laboratory Controi Spike WaterBatch#:200' 64 OZ 66 <br /> LCS 2004/04/07402.66 00 <br /> Ext acted 04/07/2004 Analyzed 'p4/07l2004 17 30`_ <br /> LCSD 2004/04/07 02 66 054 Exfracted: 0410712004 <br /> __.. �.. . �.. �_, _Q2. . _L4- .._,w , .��.. Analyzed p410712004 17 54 <br /> Compound Conc. ug/L Exp.Conc. Recovery% RPD Ctrl.Limits % Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Benzene 25.0 25.9 25.0 100.0 103.6 3.5 69-129 20 <br /> Toluene 25.6 24.5 25.0 102.4 98.0 4.4 70-130 20 <br /> Methyl Cert-butyl ether(MTBE) 24.2 23.3 25.0 96.8 93.2 3.8 65-165 20 <br /> Surrogates(s) <br /> 1,2 -d4 - 493 468 500 _ 98.6 93.6 76-130 <br /> Toluene-d8 542 525 500 108.4 105.0 78-115 <br /> Severn Trent Laboratories, Inc. 04/14/2004 12:35 <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-lnc.com'CA DNS ELAN 2496 Page 7 of 9 <br />