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, , r <br /> ustnai <br /> Sequoia t6s, A 94070-4111 <br /> 4070 Road <br /> i San Carton, CA 94070-41!l <br /> i (650)23Z-9600 <br /> Analytical n a <br /> r FAX(650)232-9612' <br /> 1 <br /> Gettler-Ryan/Geostrategies(1) r Project Unocal(1) ,Sampled 11/23/99 li <br /> 6747 Sierra Court,Suite D , ProjectNumber Unocal SS#0187/Job#280045 Received 11/24/99 4 , <br /> Dublin,CA 94568 " f Project Manager Deanna Harding Reported 12/10/99 <br /> ' `' 6 . ' <br /> <" Total Purgeable Hydrocarbons{C6=C12),BTEXFadd MTBE'by DHS LUFTIQuality.II Carlo <br /> Control' `,- <br /> gnOlu�lII'd1ICa -1 ►SaS <br /> Se <br /> w _ _ <br /> Date Spike Sample QC Reporting Linut Recov RPD RPD <br /> Anal a Analyzed Level Result Result Units Recov Limits % Limit % Notes" <br /> Batch 9120007 Date Prepared* 42/2/99 _ Extraction Method EPA 503013„JP/T1 <br /> Blank 9120007-BLK1 � i <br /> Purgeable Hydrocarbons as Gasoline 12/2/99 ND ug/l Soo <br /> Benzene ” ND Of0 500 <br /> Toluene i ND 0.500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) , <br /> " ND " 0500 ' <br /> Methyl tert-butyl ether, ND 506 <br /> Surrogate a,a,a-Trifluorotoluene 100 y 105 700-130 105 <br /> LCS 9120007-BSI <br /> Benzene R 12/2/99 ` 10 0 n 7n 9 07 ug/l 700-130 907 <br /> Toluene 10 0 8 77 700-130 87 7 <br /> Ethylbenzene „ , <br /> 10 0 9 18 700-130 91 8 r <br /> Xylenes(total) {' =30 0 -,y27 4"- 700-130 -913 <br /> Surrogate-a a a-Trifluorotoluene T 100- 103 700-130 103 <br /> w <br /> LCS 9120007-BS2 <br /> Purgeable Hydrocarbons as Gasoline 12/2/99 250 241 ug/I 700-130 96_4 <br /> Surrogate a,a,a-Trtfluorotoluene 10 0 11 1 a 700-130 111 d <br /> Matrix Spike 9120007-MS1 L911230-14 <br />=Purgeable Hydrocarbons as Gasoline= 12/2/99 _ 25011— ---=ND-- 255—ug/1� =60 0-140---102-- - - - <br /> Surrogate a,a,a-Trtfluorotoluene " 100 114 700-130 114 <br /> Matrix Spike Du p 9120007-MSDI L911230-14 <br /> Purgeable Hydrocarbons as Gasoline _ 1212/99 25_0 - ND _ _241ug/l _ 60 0-140 964 250 5 65 <br /> Surrogate a a a-Trluorotoluene 10 0 10 7 11 _ - 700-130 107 <br /> Batch 9120009 r Date Prepared 1212199 Extraction Method EPA 5030B LP/Tl <br /> Blank 9120009-BLKI <br /> Purgeable Hydrocarbons as Gasoline 12/2/99 _ ND ug/l 500 - <br /> Benzene ND- . 0 500 <br /> Toluene ND 0 500 r <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 <br /> Methyl tert-butyl ether ND 500 <br /> Surrogate a a,a-Trifluorotoluene 100 107 " 700-130 107 <br /> LCS 9120009-BSI ' <br /> Benzene 12/2/99 100 101 ug/l 700-130 101 <br /> Toluene 10 0 9 71 " 700-130 971 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 18 of 28 <br />