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Sequoia 1551 Road <br /> 4 � _ _ San Carlos CA A 94070-4111 940704070-41 1 1 <br /> (650) 232-9600 <br /> D� Analytical M FAX(650)232-9612 <br /> Gettler-Ryan/Geostrategies(1) Project Unocal(1) Sampled 9/16199 <br /> 6747 Sierra Court,Suite D Pro}ect Number Unocal SS#5098 Received 9/16199 <br /> Dublin,CA 94568 Project Mana er Deanna Harding Reported 9/30199 <br /> � r` x& p qr�_ Total Pui geable Hydiocarbons'(C6=Cl2)an"id BTEX'by DHS LiTFT/Quality Contiol,; <br /> S�uorRacdSSII CSr� <br /> -1 q$.".».... <br /> -- <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> lAnalyte Anal ed Level Result Result Units Recov Limits % Limit % Notes' <br /> LCS `- <br /> Purgeable Hydrocarbons as Gasoline 9129/99 250 260 ug/l 700-130 104 <br /> Surrogate a,a,a-Tnfluorotoluene " 100 789 " 600-140 789 <br /> Matrix Spike 9090134-MSI L909221-01 <br /> Benzene 9/29199 100 ND 8 73 ug/l 600-140 87.3 <br /> Tolucne 100 ND 8 44 600-140 $44 <br /> Ethylbenzene 100 ND 867 600-140 867 <br /> Xylenes(total) 300 ND 263 600-140 87 7 <br /> Surrogate aa a-Tri luorotoluene 100 861 600-140 , 861 <br /> Matrix Spike Duo 9090134-MSD1 L909221-01 _ <br /> Benzene 9129199 100 ND 8 88 ug/1 600-140 888 25 0 170 <br /> Toluene " 10 0 ND 885 600-140 88 5 250 474 <br /> Ethylbenzene _ 100 ND 9 02 600-140 902 250- 396 <br /> Xylenes(total) 300 ND 273 600-140 910 250 369 <br /> Surrogate a a,a-Trifluorotoluene 100 820 600-140 82 0 <br /> Sequoia Analytical-San Carlos 'Refer to end of report for text of notes and definitions • <br /> Page 25 of 30 <br />