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Sequoia 404 N , CA Lane <br /> ,� � Walnut Creek, CA 94598 <br /> ( 4 (925)988-9600 <br /> Analytical FAX(925)988-9673 <br /> Gettler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite I Project Nlunber Unocal#2859 Reported j <br /> Dublin CA,94568 Project Manager Deanna L Harding 09-Mar-00 10 29 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by,DHS LUFT - Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> Reporting Spike Source 0 <br /> /6REC RPD <br /> Analyte Result Lurut Units Level Result %REC Limits RPD Linut Notes <br /> Batch OB28001 -EPA 5030E [PIT] ` . - ' "- : '�;' ' t — f 1 ` <br /> Matrix Spike(OB28001-MS1) Source W002505-02 Prepared&Analyzed 28-Feb-00 <br /> Benzene 180 0 50 ugll 200 ND 900 70-130 <br /> Toluene 184 050 200 ND 920 70-130 <br /> Ethylbenzene 17 8 0 50 200 ND 890 70"130 <br /> Xylenes(total) 1 60 0 0 50 600 ND 100 70-130 <br /> Surrogate a,q a-Tn luorotoluetw '28 7 300 95 7 70-130 <br /> Matrix Spike Dup(OB28001-MSD1) Source W002505-02 Prepared&Analyzed 28-Feb-00 ' <br /> Benzene 183 050 ugll 200 ND 915 70-130 165 20 <br /> Toluene - 188 0 50,_ _- 20 0 _ ,ND 94 0, 70-130 2 15 y- r 20 <br /> Ethylbenzene 179 050 200 ND 895 70-130 0 560 20 <br /> Xylenes(total) 610, 0 50 600 ND 102 70-130 165 20 <br /> Surrogate a;q a-Trifluorotoluem 283 300 943 70-130 . <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the samples analyzed en accordance with the chain <br /> custody document This analytical report must be reproduced in its enlireiqW <br /> Page 16 of 21 <br />