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1551 Industrial Rid <br /> SequoiA50M) '2-6O <br /> FAX(650)232-612 <br /> Analytical %#,ww seqvaaLabs own <br /> Gealer-Ryan/GeosdBtegmes{l) Project. Unocal(3) Sampled 11/21/00 <br /> 6747 Sierra Court,Suite] Prajeet Number: FORMER UNOCAL SS#0187 Received 11/21/00 <br /> Dublin,CA 94568 Project Manager: Deanna Harding Reported 1214100 <br /> a r aim <br /> c�r u <br /> Date Spike Sample QC Reporting Limit Reoov RPD RPD <br /> Anal <br /> Analyzed Level Result Result Units Recov Limts % Limit % Notes* <br /> L 5 0110140-BS2 <br /> Purgeable Hydrocarbons as Gasoline 11/30/00 250 224 u 700-130 896 <br /> Surrogate. a,aa-Thfluorotoluene " 100 934 ff 700-130 934 <br /> LCS 0110140-B5�' <br /> Benzene 1211/00 100 915 11911 700-130 915 <br /> Toluene 100 895 " 700-130 895 <br /> Ethylbenzene " 100 893 700-130 893 <br /> Xylenes(tocol) ^ 300 271 _ " _ 700-130 903 <br /> Surrogate a,aa-Trifluorotoluene " 100 101 700-130 101 <br /> L.CS 0110140-BS4 <br /> Purgeable Hydrocarbons as Gasolme 1211100 250 206 ug/l 700-130 824 <br /> Surrogate a,a,a-Tnfluorotoluene ff 100 103 ro 700-130 103 <br /> 4strix Spike 0110144M5I L011191-04 <br /> Benzene 1211/00 100 ND 959 ug/l 600-140 95.9 <br /> Toluene 100 ND 9 77 600-140 97.7 <br /> Ethylbenzene " 100 ND 969 600-140 %.9 <br /> X leases total 300 ND 291 " 600-140 97.0 <br /> Surrogate aaa-Tnfluorotoluene 100 780 " 700-130 780 <br /> Matrix Spike Dao 0110140-MSDI L011197-04 <br /> Benzene 12/1100 100 ND 106 ug/1 600-140 106 250 10.0 <br /> Toluene too ND 10 5 " 600-140 105 250 7.20 <br /> Ethylbenzene loo ND 109 ^ 600-140 109 250 11.8 <br /> Xylenes(total) 300 ND 327 600-140 109 250 11.7 <br /> Surrogate aa,a-Trifluorotoluene " 100 763 " 700-130 763 <br /> Batch- 0120002 Date Prepared: 1211LOO Extraction Method: EPA 5030B-U= <br /> Blank 0120002-BLKI <br /> Purgeable Hydrocarbons as Gasolme 12/1/00 ND ugll 50.0 <br /> Benzene TM ND ^ 0.500 <br /> Toluene ND " 0.500 <br /> Ethylbaimme ND ^ 0.500 <br /> Xylenes(total) ND ^ 0.500 <br /> Methyl tert-butyl ether " ND " 5.00 <br /> Surrogate. aaa-Tr{fluorotoluene 100 827 700-130 827 <br /> .CS 0120002-BSI <br /> Benzene 12/1/00 100 104 ug/l 700-130 104 <br /> One <br /> 100 980 " 700-130 980 <br /> Sequoia Analytical-San Carlos *Refer to and of reportfor tart of notes and def3miions <br /> Page 15 of 19 <br />