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1551 Industrial Road <br /> ,• an Carlos CA 94070-4111pquola <br /> (650)232-9600 <br /> FAX(650) 232-%12 <br /> Analytical %vwwsequolalabsCOM <br /> Gettler-Ryan/Geostrategres(1) Project Tosco(5) Sampled 511100 <br /> 6747 Sierra Court,Suite D Project Number- UNOCAL SS#8671 Received 511100 <br /> Dublm,CA 94568 'Project Man# w Deanna Hardin& Reported 5115100 <br /> re's""��7""'z'°�''�a� �, `?'"m sv'�`=-,9� ��;�i« �; Se RO�,,,>mi.e 3C'"�►�$1I` w�,,,. .=� <br /> Date Spiilce Sample QC Reporting Limit Recov RPD RPD <br />[AnalyteAnalyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 0050046 Date Frepared 111100 Extraction Method: EPA 5030E IPM <br /> Blank 0050046-BLK2 <br /> Purgeable Hydrocarbons as Gasoline 5/11/00 ND ug/l 50.0 <br /> Benzene of ND H0.500 <br /> Toluene ND 0.500 <br /> Ethylbenzene ND 0.500 <br /> Xylenes(total) ND " 0•500 <br /> Methyl tert-bu 1 ether ND 5.00 <br /> Surrogate a,a,a-Trrfiuorotoluene 100 928 " 700-130 928 <br /> LCS., 0050046-B81 <br /> Benzene 5111100 100 825 119/1 700-130 825 <br /> Toluene It 100 796 700-130 796 <br /> Ethylbenzene 100 787 700-130 787 <br /> Akknes(total) 11 300 230 " 700-130 767 <br /> gate a,a,a-Tri luorotoluene N 10 0 911 700-130 921 <br /> LCS 0050046-BS2 <br /> Purgeable Hydrocarbons as Gasolme 5111100 250 226 U0 700-130 904 <br /> Surrogate a,a,a-Trifluorotoluene 11 100 864 700-130 864 <br /> Matrix Snake 0050046-MS1 L005014-05 <br /> Purgeable Hydrocarbons as Gasoline 5111100 250 ND 250 119/1 600-140 100 <br /> Surrogate a,a,a-Trlfluorotoluene IT 100 869 OF 700-130 869 <br /> Matrix Spike Dnp 0050046-MSDI L005014-05 <br /> Purgeable Hydrocarbons as Gasoline 5111/00 250 ND 246 ug/l 600-140 95.4 250 161 <br /> Surrogate a,a,a-Trifluorotoluene 100 857 of 700-130 857 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 5 of 7 <br />