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1551 industrial Road <br /> Sequoia San Carlos, CA 94070-4111 <br /> 4 (650) 232-9600 <br /> i!D <br /> Analytical FAX(650) 232-9612 <br />�M <br /> Gettler-Ryan/Geostrategies(l) Prosect Gettler-Ryan/TOSCO Sampled 10/26/99 <br /> 6747 Sierra Court,Suite D Project Number- TOSCO 6981/1707 Pacific,Stockton,CA Received 10/26/99 <br /> Dublin,CA 94568 Project Manager Steve Carter Reported 11/2199 <br /> µ� <;Totai'Puigeabie Hydrocarbons(C6ZC12)�"BTEX and'MTBE,by DHS L[IFTIQuxlity Control t 3= ? <br /> �.-- ��.Y <br /> k <br /> e. ....�_.,SequoYa}lnalyhcal <br /> Y dm — +.— <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> lAnalyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 9100143 Date Prepared 10/28/99 Extraction Method EPA 5030B PIT <br /> Blank 9100143-BLKI <br /> Purgeable Hydrocarbons as Gasoline 10/28/99 ND ug/l 500 <br /> Benzene ND It <br /> 0 500 <br /> Toluene ND " 0 500 <br /> Ethylbenzene toND to 0 500 <br /> Xylenes(total) ND to0 500 <br /> Methyl tert-butyl ether ND to 500 <br /> Surrogate a,a,a-Trrfluorotoluene 100 820 of 700-130 820 <br /> LCS 9100143-BS1 <br /> Benzene 10/28/99 100 787 ug/l 700-130 78 7 <br /> Toluene 1, 100 773 700-130 773 <br /> Ethylbenzene 100 784 700-130 784 <br /> lenes(total) _ 300 23 6 or _ 700-130 78 7 <br /> rrogate a,a,a-Trtfluorotoluene 100 798 700-130 798 <br /> LCS 9100143-BS2 <br /> Purgeable Hydrocarbons as Gasoline 10/28/99 _ 250 243 ug/l 700-130 972 <br /> Surrogate a,a,a-Triuorotoluene 1, 100 752 700-130 75 2 <br /> I <br /> Matrix Spike 9100143-MS1 L910215-15 <br /> Purgeable Hydrocarbons as Gasoline 10/28/99 250 940 255 ugll 600-140 64 4 <br /> Surrogate a a,a-Triuorotoluene 1, 100 931 700-130 931 <br /> Matrix Spike Duo 9100143-MSDI L910215-15 <br /> Purgeable Hydrocarbons as Gasoline 10/28/99 250 940 245 ug/1 600-140 604 25 0 641 _ <br /> Surrogate a,a,a-Triuorotoluene 100 768 700-130 768 <br /> Seq oia Analytical-San Carlos - - *Refer to end of report for text of notes and definitions <br /> Page 5 of 6 <br />