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404 N <br /> Sequoia Creed WA 94598 <br /> Walnut 1 (92 )9 94598 <br /> iwr Analytical (925)988-9600 <br /> FAX(9!6)9$8-9673 <br /> www s. uo1alabs com <br /> Gettler Ryan,Inc -Dublin Project Unocal , <br /> 6747 Sierra Court Suite J Project Number Unocal#12859 Reported. <br /> Dublin CA,94568 Project Manager Deanna L Harding 07-Dec-01 08 14 <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 Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1 K20001 -EPA 5030B PIT <br /> LCS{1K20001-BS2) Prepared&Analyzed 21-Nov-01 t <br /> Benzene 188 050 ug/1 200 94 70-130 <br /> Toluene 202 050 200 101 70-130 <br /> Ethylbenzene 195 050 200 98 70-130 <br /> Xylenes(total) 55 9 050 600 93 70-130 <br /> Surrogate a,a a-TrJTuormoluene 321 " 300 107 70-130 <br /> LCS(I K2 0001-BS3) Prepared 21-Nov-01 Analyzed 26-Nov-01 <br /> Benzene 197 050 ug/1 200 98 70-130 <br /> Toluene 209 050' 200 104 70-130 <br /> Ethylbenzene 193 050 200 96 70-130 <br /> Xylenes(total) 571 050 60 0 95 70-130 <br /> Surrogate a a a-Triuorotoluene 326 300 109 70-130 <br /> LCS Du (1K20001-BSDI) Prepared&rAnalyzed 20-Nov-01 <br /> Benzene 200 050 ug/1 200 100 70-130 10 20 <br /> Toluene 213 050 200 106 70-130 11 20 <br /> Ethylbenzene 205 050 It <br /> 200 102 70-130 11 20 <br /> Xylenes(total) 600 050 600 100 70-130 9 20 <br /> Surrogate aTr�uorotolaene 29 3 - <br /> aa- --30 0� 98-—70=130 - -- <br />-Batch-1 K21001—EPA-503OB-P/7= -- - - - --- -- -------- - ---- - - <br /> Blank(IK21001-BLKI) _ T Prepared&Analyzed 21-Nov-01 - <br /> Purgeable Hydrocarbons(C6-C 12) ND 50 ug/1 <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) - ND 050 " <br /> Methyl tert-butyl ether(MTBE) ND 2 5 " <br /> Surrogate a a,a-Triuorotoluene 377 300 126 70-130 <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the samples analyzed to accordance with the c <br /> custody document This analytical report must be reproduced in its en <br /> 13 of 19 <br />