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—Sequoia <br /> +equoia _ 404 N ,C-A Lane <br /> Walnut Geek,Cq 945% <br /> (925)988-9600- <br /> FAX(925)988-9473 <br /> q„r Analytical www s«wolalabs corn <br /> Gettler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite J Project Number Unocal# 1205 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 08-Feb-01 07 55 <br /> Total Purgeable Hydrocarbons (C&C12), BTEX and MTBE by DHS LUFT <br /> - -- - -- -— --Sequoia-Analytical --Walnut-Creek -- - — - -- - - -- -- <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-3(W101183-04)Water Sampled 08-0an-01 10 05 Received 09-Jan-01 1S 15 P-01 <br /> Purgeable Hydrocarbons 2100 130 u&4 25 1A22004 20-Jan-01 20-Jan-01 EPA <br /> 8015M/8020 <br /> Benzene 93 13 " <br /> Toluene 3 9 13 " ^ <br /> Ethylbenzene 32 13 <br /> Xylenes (total) 7 8 13 <br /> Methyl tert-butyl ether 6 9 63 " CC-3 <br /> Surrogate a,a,a-Trtfluorotoluene 847% 70-130 <br /> MW4(W101183-05)Water Sampled 08-Jen-01 09 35 Received 09-0an-01 18 15 I-02,P-01 <br /> Purgeable Hydrocarbons 1700 500 ug/1 to 1B07001 07-Feb-01 07-Feb-01 EPA <br /> 8015M/8020 <br /> Benzene 95 50 <br /> Toluene ND 5 0 <br /> Ethylbenzene 43 5 0 <br /> Xylenes(total) 22 50 <br /> Methyl tert-butyl ether ND 25 <br /> Surrogate a,a,a-Tnfluomtoluene 100% 70-130 <br /> MW-5(W101183-06)Water Sampled 08-Jan-01 15 50 Received 09-Ian-01 18 15 P-01 <br /> Purgeable Hydrocarbons 64000 10000 ug/1 200 1A19001 19-Jem-01 19-Jan-01 EPA <br /> s 8015M/8020 <br /> Benzene 120 100 <br /> Toluene 1300 100 <br /> Ethylbenzene 5000 100 <br /> Xylenes(total) 30000 100 ^ <br /> Methyl tent butyl ether ND 500 CC-3 <br /> Surrogate a,a,a-Tizfluorotoluene 101 % 70-130 <br /> Sequoia Analytical-Walnut Creek The results rn tins report apply to the samples amdwed in accordance with the chan <br /> custody documeru,T7us analyacal r+epon meat be reproduced in its enh <br /> Page 3 of 14 <br />