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r <br /> 1551 Industrial Roadk_' <br /> ��®i San Carlos,CA 94070-4111 <br /> 1 4 (650) 232-9600 <br /> Analytical fAx(650) 232-9612 <br /> a o <br /> Gettler-Ryan/Geostrategies(1) Project Unocal(t) -Sampled ',12/13/99 <br /> 6747 Sierra Court,Suite D Project Number Unocal SS#5098 Received12/14/99 <br /> Dublin,CA 94568 Project Manager Scott Polston Rqported 12/29/99 <br /> Total Purgeable Hydroc'rbons(C6-C12)and'BTEX by DHS LUFT/Qaalit�'Control <br /> , <br /> SequOia'moytioal�SaII pipt ss dk ter ; `x� <br /> + <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Anal e r <br /> Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> LCS 9120122—BS2 ' , <br /> Purgeable Hydrocarbons as Gasoline 12/24/99 250 260 ug/l 700-130 1(14 <br /> Surrogate a,a,a-Trrfluorotoluene It100 129 " ' 600-140 129 ' <br /> r <br /> LCS 9120122-BS3 <br /> Benzene 12/25/99 100 8 93 ugll 70 0-130 89 3 <br /> Toluene 10 0 889 "• � 70 0-130 88 9 <br /> Ethylbenzene 100 907 <br /> 70 0-130 90 7 <br /> Xylenes(total) 300 270 700-130 900 <br /> Surrogate a,a,a-Trifluoro toluene 100 119 " 600-140 119 <br /> LCS 9120122-BS4 _ a <br /> Purgeable Hydrocarbons as Gasoline 12/25/99 250 261 ug/l 700-130 104 <br /> Surrogate a a a-Tri luorotoluene 100 12 7 60 0-140 L 117 <br /> Matrix Spike 9120122-MSl L912162-03 <br /> Purgeable Hydrocarbons as Gasoline 12/24/99 250 ND 274 ug/l 600-140 110 _ <br /> rrogate a a a-Triuorololuene 10 0 135 " 600-140 135 <br /> Su <br /> =Matrix Spike Duo 9120122-MSD1.L912162-03 _ <br /> Purgeable Hydrocarbons as Gasoline 12/24/99 250 ND __ 270 ug/1 _ 66-CF-140 lfl$�25 0�1`83� <br /> Surrogate�a,a,a-Tnfluorotoluene� -10 0 134 600-140 134 <br /> -- <br /> r <br /> -Batch 9120123{ -_ _ Date Preaared 12/24/99 _ _ - _ Extraction Method EPA 5030E IP/T]r <br /> Blank 9120123-BLKI <br /> Purgeable Hydrocarbons as Gasoline 12/24/99 ND . 50 0 <br /> ++ ND 0 500 <br /> Benzene - _ _ _ ND n ° " 0 500 <br /> Toluene „ <br /> Ethylbenzene a ND 0 500 <br /> Xylenes(total) <br /> ++ ND 0 500 <br /> Surrogate 9,a a-Trfluorotoluene " 100 9 77 600-140 977 <br /> Blank s L - 9120123-BLKZ <br /> purgeable Hydrocarbons as Gasoline 12/25/99 ND ug" 500 <br /> It ND " 0 500 <br /> Benzene I ND 0 500 <br /> Toluene <br /> Ethylbenzene ++ ND 0 500 <br /> Xylenes(total) It ND 0 500 <br /> — Surrogate a,a,a-Trifluorotoluene 10 0 10 4 60 0-140 104 ` <br /> LCS 9120123-BS1 <br /> Benzene 12/24/99 100 8 55 ug/l 70 0-130 85 5 <br /> Sequoia Analytical-San Carlos "Refer to end of report for text of notes and definitions <br /> Page 23 of 31 <br />