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S <br /> TT Submission#• 2003-09-0413 <br /> ON��gGas/BTEX/MTBE by 8260B (C6-C12) i <br /> Cambria Environmental Emeryville <br /> Attn Cynthia Vasko <br /> 5900 Hollis Street, Ste A <br /> Emeryville, CA 94608 <br /> Phone -(510)420=3344-Fax-(510}420 170 <br /> Project 245-0783-003 Received 09/11/2003 08 06 <br /> 98996184 <br /> Sita *2F7r rnijntry ri,ih wvrt, 4tnrktnn <br /> Batch QC-Re ort <br /> � <br /> Prep(s) 5030B 'Testis"8260FAB" <br /> Laboratory Control Spike Water QC>Batcb#20031l911B 26,64 <br /> LCS, z 2003!09!16-2B,64-019 W Extracted 0911 12f�b3 ,4naly7ed 06/16/20032019 <br /> LCSD 2003i09i16-213 64-041 Extracted,09i1SC200�3 z— Analyzed 091111100'20 41 <br /> Compound Conc ug/L Exp Conc Recovery% RPD Ctrl Limits% Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS LCSD <br /> Methyl tert-butyl ether(MTBE) 21 1 235 25 844 940 108 65-165 20 <br /> Benzene 221 252 25 884 1008 131 69-129 20 <br /> Toluene 246 270 25 984 1080 93 70-130 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 423 443 500 84 6 886 76-130 <br /> Toluene-d8 1494 1526 500 1988 105 2 78-115 <br /> Severn Trent Laboratories, Inc 09/1812003 12 26 <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 <br /> A W d Swum Twe at Tel 925 484 1919 Fax 925 484 1096`www stknc com"CA DHS ELAN 2496 Page 9 of 12 <br />