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404 N Wlget lane <br /> Sequoia Walnut Creek,(925)988-9600 <br /> FAX(925)988-9673 <br /> V07 Analytical n <br /> www sequolalabs corn <br /> ` <br /> Gettler Ryan,Inc 'Dublin Pro)ect Tosca <br /> 6747 Sierra Court Suite J Project Number .Toscb" 11194 Reported ` <br /> Dublin CA,94568 Project Manager' Doug tee i m 07-Jul-00 09 33 <br /> Total Purgeable Hydrocarbons (C6 C12), BTEX and MTBE by DHS LUFT- Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> G <br /> Reportmg Spike Source °/oREC RPD <br /> Analyte Result Limit Units ' Level Result %REC, Limits RPD Liuut Notes <br /> -Batch OF27003­EPA S030B [PI al - '• m' " ' A. _" _ - w1 = r <br /> Blank(OF27003-BLKI) Prepared&Analyzed 27-Jun-00 <br /> Purgeable Hydrocarbons ND 50 ugll <br /> Benzene ND 050 " <br /> Toluene ND 0 50 , <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 <br /> Methyl tort-butyl ether ND 25 " <br /> Surrogate a q a-Trifluorotoluene 292 " 300 973 70-130 <br /> LCS(OF27003-BSI) Prepared&Analyzed 27-Jim-00 <br /> Benzene 192 050 ugA 200 , 910 70-130 <br /> Toluene 184 050 20 0 920 70-130 <br /> Ethylbenzene 187 050 ' 200-' _ 935 70-130 - <br /> Xylenes(total) 541 0 50 600 i i 902 70-130 n <br /> Surrogate qqa-Trifluorotoluene 273 300 910 70-130 <br /> Matrix Spike(OF27003-MSI) Source W006433-08 Prepared&Analyzed 27-Jim-00 <br /> Benzene 190. 0 50 ug/l 200 ND 95 0 70-130 <br /> Toluene'- - 4 - - - 193 30 50 20 Oy ND"___96 570-130- <br /> Ethylbenzene 196 0 50 s 200 ND 98 0 70-130 <br /> Xylenes(total) 566 0 50 600 ND !i4_3__—70-1-30— <br /> Surrogate 4Z4 a-Trtfluorotoluene= — _­274 300- =�_-91-3-x-=70-130-=-= ""2- -� --� - <br /> Matrix Spike Dup(OF27003-MSD1) Source W006433-08 Prepared&Analyzed 27-Jun-00 <br /> Benzene 19 5 050 ug/l 200 ND 975 70-130 260 20 <br /> Toluene 198 050 200 ND 990 70-130 256 20 <br /> Ethylbenzene 1199 0 50 200 µ ND 995 70-130 152 20 <br /> Xylenes(total) 573 0 50 600 ND 95 5 70-130 123 20 <br /> Surrogate a a a-Tnfluorotoluene 276 300 920 70-130 " <br /> Sequoia Analytical-Walnut CIeek The results to this repos apply to the samples analyzed in accordance with the chain <br /> custody docume>a_ Tits analytical report must be reproduced in its entn <br /> Page 5 of 8 <br />