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Sequoia los,CA <br /> Road <br /> San Carlos,l:A 94070-4111 <br /> (650) 232-9600 <br /> Analytical FAX(b50) 232-9611 <br /> Gettler-Ryan/Geostrategies(1) Protect 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 R orted 11/3/99 <br /> n dotal Peii geabie Hydrocairlions(C6=C12),BTEX and MTBE by�DHS LUFiIQiiali16 Control w z <br /> _tsy `.s. .¢ �`a s„ a'ta ,n 1.. f4 . t ✓ . <br /> � <br /> f � <br /> ^«r <br /> Date Spike Sample QC Reporting Linut Recov RPD RPD <br /> lAnalyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 9100151 Date Prepared 10/29/99 Extraction Method EPA 5030B [P/T1 <br /> Blank 9100151-BLKI <br /> Purgeable Hydrocarbons as Gasoline 10/29/99 ND ug/l 500 <br /> Benzene ND010 500 <br /> Toluene " ND 0 500 <br /> Ethylbenzene ND it0 500 <br /> Xylenes(total) ND1. 0 500 <br /> _Methyl tert-butyl ether toND01 5 00 <br /> Surrogate a,a,a-Trfluorotoluene 10 0 836 700-130 830 <br /> LCS 9100151-BS1 <br /> Benzene 10/29/99 100 786 ug/1 700-130 78 6 <br /> Toluene 100 775 H700-130 775 <br /> Ethylbenzene 100 785 700-130 785 <br /> ,jnKylenes(total) 300 23 5 700-130 78 3 <br /> errogate a,a a4rifluorotoluene 100 790 700-130 79 0 <br /> LCS 9100151-BS2 <br /> Purgeable Hydrocarbons as Gasoline 10/29/99 250 240 ug/1 700-130 960 <br /> Surrogate a a,a-Trifluorotoluene M100 713 700-130 72 3 <br /> Matrix Spike 9100151-MS1 L910215-01 <br /> Benzene 10/30/99 100 ND 8 54 ug/l 600-140 854 <br /> Toluene 100 ND 849 600-140 849 <br /> Ethylbenzene 100 ND 861 600-140 861 <br /> Xylenes(total) 300 ND 25 5 600-140 850 <br /> Surrogate a,a,a-Trfluorotoluene 10 0 907 700-130 90 7 <br /> Matrix Spike Duo 9100151-MSDI L910215-01 <br /> Benzene 10/30/99 100 ND 848 ug/1 600-140 84 8 250 0 705 <br /> Toluene 100 ND 841 600-140 841 250 0 947 <br /> Ethylbenzene 100 ND 851 600-140 851 25 0 117 <br /> Xylenes(total) 300 ND 253 600-140 843 250 0 827 <br /> Surrogate a,a,a-Trifluorotoluene 10 0 896 700-130 89 6 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 5 of 6 <br />