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1551 industrial Road <br /> ` Sequoia San Carlos CA 94070-4111 <br /> (650)232-9600 <br /> Analytical FAX(650) 232-9612 <br /> Gettler-11yan/Geostrategtes(1) Project Tosco(5) Sampled 11/16/99 <br /> 6747 Sierra Court,Suite D Project Number Tosca Sta#6981 Received 11/17/99 <br /> Dublin,CA 94568 Project Mana er Steve Carter R orted 11/22/99 <br /> „� r Vii � <br /> Lie Total Pur-abte Hydrocarbons(C6-Ci2}and'B_TEXa6y DHSrLUFIeIQuslify�Cpntroi� tM ? ytct, <br /> w.d ,f^" � <br /> }#ualyhCal_88>a�arlQs t^: <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Linut % Notes* <br /> Batch 9110129 Date Prepared 11/19/99 Extraction Method RPA 5030E PIT <br /> Blank 9110129-BLKI <br /> Purgeable Hydrocarbons as Gasoline 11/19/99 NO ug/l 500 <br /> Benzene " NO 0 500 <br /> Toluene NO 0 500 <br /> Ethylbenzene NO 0 500 <br /> Xylenes(total) NO 0 500 <br /> Surrogate a a,a-Tr fluorotoluene 100 945 600-140 94.5 <br /> LCS 9110129-BSI <br /> Benzene 11/19/99 100 10 0 ug/1 70 0-130 1D0 <br /> Toluene 1. 100 101 700-130 101 <br /> Ethylbenzene 10 0 101 700-130 101 <br /> Xylenes(total) _ _ 300 304 _" _ 700-130 _ 101 <br /> rrogate a,a,a-Tnfluorotoluene 100 10 5 600-140 105 <br /> LCS 9110129-13S2 <br /> Purgeable}lydrocarbons as Gasoline 11/19/99 250 240 ug/l 70 0-130 96 0 � <br /> Surrogate a,a,a-Triuorotoluene Ff100 109 600-140 109 <br /> Matrix Spike 9110129-MSI L911141-01 <br /> Purgeable Hydrocarbons as Gasoline 11/20/99 250 ND 231 ug/l 600-140 <br /> 92 4 <br /> Surrogate a,a,a-Tnfluorotoluene <br /> " 100 982 of600-140 982 <br /> Matrix Spike Duu 9110129-MSD1 L911141-01 <br /> Purgeable Hydrocarbons as Gasoline 11/20/99 250 ND 242 ug/l 600-140 968 250 465 <br /> Surrogate a,a,a-Trifluorotoluene 100 105 600-140 105 <br /> a "Refer to end of report for text of notes and definitions <br /> Sequoia Analytical-San Carlos <br /> Page 4 of 6 <br />