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Sequoia �i, , ' "404N Wiget lane <br /> Walnut Creek CA 94598 <br /> 4 ' (925)988-9600 <br /> ID <br /> II&V Anal *cal cal FAX(925)988-9673 <br /> Gettler Ryan,Inc -Dublin Project Unocal f a <br /> 6747 Sierra Court Suite J Prolett Number Unocal#2859 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 09-Mar-00 10 29 <br /> Total Purgeable Hydrocarbons (C6-Cl2), BTEX and MTBE by DHS LUFT ' <br /> Sequoia Analytical -Walnut Creek <br /> Reporting ° <br /> Cyt Result Lmut Uruts Dilution Batch Prepared Analyzed , Method Notes <br /> 3 <br /> -TB-LB(WO02463-01)Water Sampled 17-Feb-00 00 00 Received 17-Feb-00 19 20 1 1 n G <br /> Purgeable Hydrocarbons ND , 50 ug/l 1 ` OB22003 22-Feb-00 22-Feb-00 EPA <br /> 8015M/8020 <br /> Benzene ND 050 <br /> Toluene ND 050 " < <br /> Ethylbenzene ND -050 <br /> " <br /> Xylenes(total) ND 050 <br /> Methyl tert butyl ether `' ND 25 " <br /> Surrogate a,a,a-Tnfluorotoluene ' ' 953% 70-130 <br /> MW-1 (W002463-02)Water' Sampled 17-Feb-00 12 57 Received 17-Feb-00 19 20 <br /> Purgeable Hydrocarbons ND 50 ug/l 1 OB22003 22-Feb-00 22-Feb-00 EPA <br /> _ - -- r 8015M/8020 - <br /> Benzene ND 050 " <br /> Toluene 062 050 " <br /> -Ethylbenzene rn ND 050 - <br /> Xylenes(total) 085 050 <br /> Methyl tert butyl ether ND 25 " <br /> Surrogate a a,a-Tnfluorotoluene 104% 70-130 " <br /> MW-2(W002463-03)Water ,Sampled 17-Feb-0016 07 Received 17-Feb-00 19 20 P-01 <br />�PurgeableHydroLarbons 62000 10000—ug/1 200�OB23001�23-Feb-0023-Feb-00 EPA�� —`- <br /> 8015M/8020 <br />==Benzene �-=---2000-- -100---" -- —" "— —"------ ---- --— ---- — -- --- - <br /> Toluene 10000 100 <br /> )Ethylbeazene�-`i --~�---- -----3600--�-,_ 100_-T., -�—._„ -_-..- -�--.,__��-.._.�--- --•_-..�-- - -- ---- �-- - <br /> Xylenes (total) 15000 100 " <br /> Methyl tert butyl ether ND 500 <br /> Surrogate a,a,a-Trifluorotoluene 927% 70-130 " <br /> Sequoia Analytical-Walnut Creels The results in this report apply to the samples analysed in accordance with the chain <br /> custody document Tits analytical report mast be reproduced in its enure <br /> Page 2 of 21 <br />