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Sequoia 819 Striker Avenue Suge 8 <br /> 958 <br /> Sacramento CA 95834 <br /> (916)921-9600 <br /> Analytical <br /> FAX(916)921 alabs c 00 <br /> wwww sequoilabs tom <br /> Blaine Tech Services,Inc Project Equiva,2575 Country Club, Stockton,CA <br /> 1680 Rogers Avenue Project Number 010412-J1 Reported <br /> San Jose CA,95112-1105 Project Manager Nick Sudano 05/01/01 1 1 21 <br /> Total Purgeable Hydrocarbons (C6-C12),BTEX and MTBE by DHS LUFT - Quality Control <br /> Sequoia Analytical-Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1040239-EPA 5030B(PIT) <br /> Blank(1040239-BLKI) Prepared&Analyzed 04/18/01 <br /> Purgeable Hydrocarbons ND 500 ug/1 <br /> Benzene ND 0 500 " <br /> Toluene ND 0 500 " <br /> Ethylbenzene ND 0 500 " <br /> Xylenes(total) ND 0 500 " <br /> Methyl tert-butyl ether ND 250 " <br /> Surrogate a,a,a-Tri luorotoluene 913 100 913 60-140 <br /> LCS(1040239-BSI) Prepared&Analyzed 04/18/01 <br /> Benzene 8 17 0 500 ug/1 10 0 81 7 70-130 <br /> Toluene 924 0 500 too 92 4 70-130 <br /> Ethylbenzene 976 0 500 100 976 70-130 <br /> Xylenes(total) 302 0 500 300 101 70-130 <br /> Methyl tert-butyl ether 910 2 50 100 910 70-130 <br /> Surrogate a,a a-Trifluorotoluene 931 100 931 60-140 <br /> Matrix Spike(1040239-MSI) Source 5104202-15 Prepared&Analyzed 04/18/01 <br /> Benzene 8 290 500ug1110 07-ND 82 9 60-140 <br /> Toluene 118 0 500 100 297 883 60-140 <br /> Ethylbenzene 103 0 500 10 0 0 590 971 60-140 <br /> Xylenes(total) 314 0 500 300 2 64 959 60-140 <br /> Methyl tert-butyl ether 122 250 100 288 932 60-140 <br /> Surrogate aa a-Triuorotoluene 947 100 947 60-140 <br /> Matrix Spike Dup(1040239-MSD1) Source S104202-15 Prepared&Analyzed 04/18/01 <br /> Benzene 7 56 0 500 ug/1 100 ND 75 6 60-140 921 25 <br /> Toluene 112 0 500 100 297 823 60-140 522 25 <br /> Ethylbenzene 975 0 500 JOG 0 590 916 60-140 549 25 <br /> Xylenes(total) 295 0 500 300 2 64 895 60-140 624 25 <br /> Methyl tert-butyl ether 108 2 50 100 288 792 60-140 122 25 <br /> Surrogate a aa-Trifluorotoluene 9 78 100 978 60-140 <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the cha <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 19 of 25 <br />