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404 N %get lane <br /> Sequoia Walnut Creek,CA 945% <br /> 4 (925)4D • FAX(925)988-99673 <br /> 1wAnalytical www sequoialabs corn <br /> Gettler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal#0123 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 20-Jul-00 11 19 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT - Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> [Analyte Result Linut Units Level Result %REC Lunts RPD Lunt Notes <br /> Batch OF29002-EPA 5030B[P/TJ <br /> Matrix Spike(OF29002-MS1) Source W006496-04 Prepared 29-Jun-00 Analyzed 30-Jun-00 <br /> Benzene 155 050 ug/l 200 ND 775 70-130 <br /> Toluene 159 050 200 ND 795 70-130 <br /> Ethylbenzene 166 050 200 ND 830 70-130 <br /> Xylenes(tom) 507 050 600 ND 845 70-130 <br /> Surrogate a,as-Tri luorotoluene 238 300 793 70.130 <br /> Matrix Spike Dup(OFZ9002-MSD1) Source W006496-04 Prepared 29-Jun-00 Analyzed 30-Jun-00 <br /> Benzene 163 050 ug/1 200 ND 81 51 70-130 503 20 <br /> Toluene 169 050 200 ND 845 70-130 610 20 <br /> Ethylbenzene 175 050 200 ND 875 70-130 528 20 <br /> Xylenes(total) 530 050 600 ND 883 70-130 444 20 <br /> Surrogate a qa-Tri,/luorotoluene 256 300 853 70-130 <br /> i <br /> Sequoia Analytical-Walnut Creels The results in thus report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety. <br /> Page 14 of 20 <br />