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819 Striker Ave Ste 8 <br /> Sequoia Sacramento,CA 95834 <br /> Analytical (916)921-9600 <br /> FAX(916)921-0100 <br /> ettler-Rvan-Dublin Project Former Unocal 5098,Stockton,CA S212135 <br /> 6747 Sierra Court,Ste I Protect Number N/A Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 12/27/02 14 14 <br /> Total Purgeable Hydrocarbons by DHS LUFT - Quality Control <br />' Sequoia Analytical-Sacramento <br /> Reporting Spike Source %REC RPD <br /> Ana] a Result Limit Units Level Result %REC Limits RFD Lnnit Notes <br /> Batch 212019$-EPA 5030B(PIT) <br /> Laboratory Control Sample 2120198-BS3 Prepared&Analyzed- 12/13/02 <br />' Purgeable Hydrocarbons 218 50 ug/1 250 87 70-I30 <br /> Surrogate a,a a-Trifluororoluene 118 100 118 60-140 <br /> Laboratory,Control Sam le 2120198-BS4 Prepared&Analyzed 12/16/02 <br /> Purgeable Hydrocarbons 293 50 ug/l 250 117 70-130 <br />' Surrogate a a a-Trifluorotoluene 992 100 99 60-140 <br /> Laboratory Control Sample(2120198-BS5) Prepared 12/17/02 Analyzed 12/18/02 <br /> Purgeable Hydrocarbons 263 50 ug/l 250 105 70-130 <br /> Wate a a a-Trgfluorotoluene 968 " 100 97 60-140 <br /> Matrix Spike(2120198-MSI) Source S212135-08 Prepared 12/12/02 Analyzed 12/13/02 <br /> Purgeable Hydrocarbons 230 - 50 ugll 250 ND 92 60-140 <br /> Surrogate a a a-Trlfluorotoluene 11 6 100 116 60-140 <br /> Matrix Spike Dup(2120198-MSD1) Source S212135-08 Prepared 12/12/02 Analyzed 12/13/02 - <br /> Purgeable Hydrocarbons 222 50 u9A 250 ND <br /> 89 60-144 4 25 <br />' Surrogate a a a-Trifluorotoluene 119 100 119 60-140 <br /> Batch 2120199-EPA 5030B(PIT) <br />' Blank(2120199-BLK1) .- - Prepared&Analyzed 12/12/02 - <br /> Purgeable Hydrocarbons ND 50 ug/1 <br /> Surrogate a a a-Trlfluorotoluene 786 Ila n 79 60-140 <br /> Blank{2120199-BLK2) Prepared&Analyzed 12/13/02 <br />' Purgeable Hydrocarbons ND 50 ug/l <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analvzed in accordance with the chain <br /> . of custody document Unless otherwise stated results are reported on a xet weight <br /> basis This analytical report must be reproduced in its entirety <br /> r <br /> 79 of 102 <br /> 1 <br />