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ustnal <br /> Sequoia los, A 94070-4111 <br /> 4070 Road <br /> San Carlos,GA 94070-A1 I t <br /> (650)232-9600 <br /> 1-5)— Analytical FAX(650) 232-9612 <br /> Gettler-RyWGeostrategies(1) Prosect Tosco(5) Sampled 10/29/99 <br /> 6747 Sierra Court,Suite D Project Number 6981/140124 04 Received 10/29/99 <br /> Dublin,CA 94568 Project Manager Steve Carter Reported 1113199 <br /> �a 6 ,Total Purgeable Hydrocarhoiis,(C6=C12)and BTEXby DHS LUFTIQua q Control�� <br /> `o ,`�Se uoiaArial #ic8)� Sap CarUos Y�, <br /> ..., e�--.:�-...,.....c., wA.,m. w�.a...* ,.lm-�..3s_�s. .zF.m ..moi a".•. ,k .. <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Anal ed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 9100152 Date Prepared 10/29/99 Extraction Method EPA 5030B PIT <br /> Blank 9100152-BLKI <br /> Purgeable Hydrocarbons as Gasoline 10/29/99 ND ug/1 500 <br /> Benzene ND It0 500 <br /> Toluene ND to 0 500 <br /> Ethylbenzene toND to0 500 <br /> Xylenes(total) toND 0 500 <br /> Surrogate a,a,a-Tnfluorotoluene 11100 935 600-140 935 <br /> LCS 9100152-BSI <br /> Benzene 10/29/99 100 805 ug/I 700-130 805 <br /> Toluene 100 794 11700-130 794 <br /> Ethylbenzene 100 804 it 700-130 804 <br /> Xylenes(total) _ 300 239 1. 700-130 797 <br /> urrogate a,a,a-Trifluorotoluene 100 924 IF600-140 924 <br /> LCS 9100152-BS2 <br /> Purgeable Hydrocarbons as Gasoline 10/29/99 250 278 ug/1 700-130 111 <br /> Surrogate a,a a-Trnfluorotoluene 100 103 600-140 103 <br /> Matrix Spike 9100152-MSI L910202-01 <br /> Benzene 10/29/99 100 0 668 844 ug/1 600-140 777 <br /> Toluene 10 0 ND 745 600-140 745 <br /> Ethylbenzene 10 0 ND 799 600-140 799 <br /> Xylenes(total) 300 ND 22 9 600-140 76.3 <br /> Surrogate a,a,a-Tnfluorototuene 100 102 IF <br /> 600-140 102 <br /> Matrix Spike Dup 9100152-MSD1 L910202-01 <br /> Benzene 10/30/99 100 0 668 8 96 ugll 600-140 829 25 0 648 <br /> Toluene 11100 ND 8 17 600-140 817 250 922 <br /> Etbylbenzene 100 ND 8 55 600-140 855 250 677 <br /> Xylenes(total) 300 ND 246 600-140 820 25 0 720 <br /> Surrogate a,a a-Tnfluorotoluene IF100 972 of 600-140 972 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 4 of 6 <br />