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r"e <br /> Sequoia Sra1w-crAve <br /> Sacrameme 5ie8 <br /> CA 95fi94 <br /> (916)921 9600 <br /> Anal N7 tical FAX(916)921 0100 <br /> ' W wW cequoialabs coir <br /> Gettler-Ryan-Dublin Project Former Unocal 5098,Stoci,ton,CA <br /> 6747 Sierra Court, Ste .l Prowl Number NIA Reported]90 <br /> Reported <br /> Dublin CA, 94568 Proleel Manager Deanna L Harding 05/21/03 17 32 j <br /> Gasoline\BTEalOxygenates by EPA method 8260B - Quality Control <br /> Sequoia Analytical - Sacramento <br /> Reponing Spike Source %RF.0 RPD <br /> LA,,lvIC Result Lnnrt Units Level Result %REC Limits RPD 1-11-11t ]holes <br /> Batch 3050248- EPA 5030B IP/TJ <br /> Laboratory Control Sample(3050248-BSI) Prepared& Analvzed 05/14/03 <br /> Surrogate 4-BFB 23 9 ugll 250 94 40-140 <br /> Laboratory Control Sample(3010248-BS2) _ Prepared& Analyzed 05/15/03 <br /> Benzene 14 6 0 50 ug/l 13 6 107 70-130 <br /> Toluene 97 3 0 50 83 4 105 70-130 <br /> Methyl lent butyl ether 22 9 2 0 1224 <br /> 102 60-]40 <br /> Surrogate 1 2 DCA d921s 1 1S fJ 112 66-140 <br /> Sur r abate Toluene dS 243 1 25 0 97 60 140 <br /> Sur rogare 4-BFB - _ 241 - 250 - -94 - 00-140 - <br /> i <br /> Batch 3050307- EPA 5030B JP/Tl <br /> Blank(30450307-BLhI) Prepared & Analvzed 05/19/03 <br /> Benzene ND 0 50 ug/l <br /> Toluene ND 0 50 ' <br /> ihe.,�o„A IND 0-IV <br /> Nylenes(total)_ ND 0 50 <br /> Methyl ten butyl ether ND 20 <br /> Sur rogare 1 1 DCA-d4�- 260 T "� 2.)0 T 104 411 140 <br /> Surrogate Toluene-d1f -- -- - -- _ 24 7- - — -- - 250 -- -- 107 40 140 - <br /> Sur rugate 4-BI'B 11 4 230 86 60 140 9� <br /> r <br /> Laborattiry Control Sample(3050307-BSI) �- Prepared 8 Analyzed 05/19/03 <br /> Benzene 24 9 0 i0 ug/I 250 100 70-]i0 <br /> l oluene 261 050 25 0 104 70 130 <br /> Methyl lert-bury]ether 299 20 250 120 W-140 <br /> Suriogare 12-DCAd4y 2h0 --2 5 0- _ w„..._.„..._104-00-140— - -� <br /> Surrogate 7oluene-d8 24 7 11 250 107 00 140 <br /> Sur;ogare 4-BFB 2 4 3 11 230 97 60 140 <br /> Sequoia Analytical - Saclamenlo The results in this report opplt roihesonrplesairalizedin accordonee viiih ihechairi of <br /> euvodrdorurnent Unless otherlirsestated results areiepaied on a ireiweighi bast% <br /> Thts anaMrrral repot i must be i epr oduced in its encu est <br /> Page 104 of 121 <br />