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r <br /> 404 N Wiget Lane <br /> Sequoia Walnut Geek c94598•o` <br /> (925)988 8-960p <br /> FAX(925)98&9673 rr <br /> Analytical vvwwseq„olalab5comr. <br /> Gettler Ryan,Inc -Dublin Project Unocal <br /> 6747 Sierra Court Suite I Project Number Former Unocal#2859 Reported: <br /> Dublin CA,94568 Project Manager Deanna L Harding 15-Jun-00 08 00 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT- Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> Reporting Spike Source a/aREC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch OF09016-EPA 5030B[P/71 <br /> Blank(OF09016-BLKI) Prepared 07-Jun-00 Analyzed 08-Jun-00 <br /> Purgeable Hydrocarbons ND 50 ug/1 <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tent-butyl ether ND 2 5 " <br /> Surrogate a;g a-Trii luorotoluene 299 300 997 70.130 <br /> LCS(OF09016-BSI) _ _ Prepared&Analyzed 07-Jun-00 — - <br /> Benzene 170 0 50 ug/l 200 850 70-130 <br /> Toluene 192 M 050 200 910 70-130 <br /> Mylbenzene 194 050 200 970 70-130 • <br /> Xylenes(total) 580 050 600 967 70-130 <br /> Surrogate gaga-Tris luonotoluene 2&7 300 957 70-130 <br /> LCS Dup(OF09016-BSDI) - Prepared&Analyzed 07-Jun-00 - - <br />-Benzene 17 3—_ 0 50--ug/l 200 86 5 70-130 175 20 <br /> Toluene 182 0 50 200 910 70-130 0 20 <br /> Ethylbenzene _—___ —_ —19 0 T _O 50-----.n-20 0 =95 0--70-130-2 08_ 20_Xylenes(total) 585 050 600 975 70-130 0 858 20 <br /> Surrogate a ga-Trilluorotohune 276 " 300 920 70.130 -T - - <br /> Sequoia Analytical-Walnut Creek The results in tins report apply to the samples anatyzed in accordmice with the chain <br /> custody docronent.77as analytical report must be reproduced in its <br /> Page 14 of 18 <br />