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404 N Wlget Lane <br /> Sequoia Walnut Creek.G4 94598 <br /> i I 1 1 (925)988-9WO <br /> 4D- Fnx(925) <br /> %wAnalytical www.secuoiaiabs 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-0011 19 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT - Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> Repoitmg Spike Source %REC RP=Notes Analyte Result Limit Units Level Result %REC Limits RPD Lim <br /> Batch OF29002-EPA 5030B[PM <br /> Matrix Spike(OF29002-MSI) Source W006496-04 Prepared 29-Jun-00 Analyzed 30-Jun-00 <br /> Benzene 155 050 U94 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(total) 507 050 " 600 ND 845 70-130 <br /> Surrogate axea-Trrfluon9ohune 238 300 793 70-130 <br /> Matrix Spike Dup(OF29002-MSDI) Source W006496-04 Prepared 29-Jun-00 Analyzed 30-Jun-00 <br /> Benzene 163 030 ug4,' 200 ND 815 70.130 503 20 <br /> Toluene 169 050 200 ND 845 70-130 610 20 <br /> Ethylbenzene 175 050 200 ND 875 70-+130 529 20 <br /> Xylenes(total) 530 050 600 ND 983 70-130 444 20 <br /> Surrogate axed-Trrfluorotoluene 256 300 853 70-130 <br /> r� <br /> Sequoia Analytical-Walnut Creek 77re reardis,n rias report 4P*to the samples analysed In a=mdw&v with the rhadn of <br /> custody docum nL TM,meal report must be reproduced in Its sndmV <br /> Page 14 of 20 <br />