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s <br /> 4) A <br /> Sequoia N ,C9t <br /> Lane <br /> Walnutut Creek,CA 94559898 <br /> 4 <br /> a) <br /> (925)988-9600 <br /> Analytical FAX(925) 988-9673 <br /> s{ <br /> Gettler Ryan,Inc -Dublin ' Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal#2859 Reported <br /> Dublin CA,94568 r Project Manager Deanna L Harding 09-Meir--00 10 29 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT - Quality Control , <br /> Sequoia Analytical -Walnut Creek ' <br /> Reporting Spike Source r%REC RPD <br /> Analyte ` k Result' Limit"' Lut Units Level - Result %REC -Luruts RPD Lunt = Nates <br /> Batch OB22001 -EPA 5030B [P/Tl <br /> Blank(OB22001-BLKI) Prepared&Analyzed 22-Feb-00 <br /> Purgeable Hydrocarbons ND 50 ug/l <br /> Benzene ND 0 50 " <br /> Toluene, ND 050 . <br /> Ethylbenzene ND 0 50 " <br /> Xylenes(total) ND 0 50 " <br /> Methyl tent-butyl ether ND 2 5 " <br /> Surrogate qqa-Wuorotoluene - - 290, _u _ F ; -" 300, -, _ 967 70-130 - - <br /> LCS(OB22001-BSI) Prepared&Analyzed 22-Feb-00 <br /> _Benzene 180 0 50 ug/1 200 -90 0 _ 70.130 <br /> Toluene 185 0 50 200 925 70 130 . <br /> Ethylbenzene 175 0 50 200 875 70-130 <br /> Xylenes(total) 604 050 600 101 70-130 <br /> Sunagate a,a,a-Trrfluoiotoldene 269 300 1 - 7 &97_ 70-130 <br />=LCS Dup(OB22001-BSD1) -Prepared&Analyzed 22-Feb-_00 <br /> Benzene 190 050 ug/l 200 950 70-130 541 20 <br />=Toluene`=---- — --- — ---- --19 6----O 50� '— =20 0---==--`=98 01-70-130r= 5 77--P__20=- -- ------ <br /> Ethylbenzene 17 2 050 200 860 70-130 173 20 ' <br /> Xylenes(total)---- 638 � 6-5o 60 0 J -` --106`---�70-130"'—S49— -_26_ <br /> Surrogate qqa-Tri luorotoluene 284 300 947 70-130 <br /> Batch OB22003-EPA 5030B [P/TJ <br /> Blank(OB22003-BLKI) Prepared&Analyzed 22-Feb-00 <br /> Purgeable Hydrocarbons ND 50 ug(l <br /> Benzene ND 050 " <br /> Toluene ND 0 50 ` <br /> Ethylbenzene ND 0 50 " <br /> Xylenes(total) ND 0 50 " <br /> Methyl tent-butyl ether ND 25 " <br /> Surrogate q qa-Trrfluorotoluene 304 300 101 70.130 <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the swnples analyzed in accordance with the chain o <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 12 of 21 <br />