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Sequoia 819 acro Avenue Suite 8 <br /> Sacramento,CA 95834 <br /> 4 (916)921-9600 <br /> a- ) <br /> Analytical FAX 921-0100 <br /> www sequogvolalabs corn <br /> Blaine Tech Services,Inc Project Equtva,2575 Country Club,Stockton,CA <br /> 1680 Rogers Avenue Project Number 010111-JI Reported <br /> San Jose CA,95112-1105 Project Manager Nick Sudano 02/26/01 I4 55 <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 1010206-EPA 5030B P <br /> Blank(1010206-BLKI) Prepared&Analyzed 01/18/01 <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-Trifluorotoluene 114 100 114 60-140 <br /> L_CS(1010206-BSI) _ Prepared&Analyzed 01/18/01 _ <br /> Benzene 945 0 500 ug/l too 94 5 70-130 <br /> Toluene 9 96 0 500 100 996 70-130 <br /> isbenzene 104 0 500 too 104 70-130 <br /> es(total) 273 0 500 300 910 70-130 <br /> Methyl tert-butyl ether 9 85 250 100 985 70-130 <br /> Surrogate a a a-Trifluorotoluene 116 100 116 60-140 <br /> Main%Spike(1010206-MS1) Source 5103239-04 Prepared&Analyzed 01/I8/01 <br /> Benzene 9 59 0 500 ug/l too ND 959 60-140 <br /> Toluene 103 0 500 100 ND 103 60-140 <br /> Ethylbenzene 108 0 500 100 ND 108 60-140 <br /> Xylenes(total) 28 6 0 500 300 ND 95 3 60-140 <br /> Methyl tert-butyl ether 9 64 250 100 ND 964 60-140 <br /> Surrogate a a a-Tnfluorotoluene 111 100 111 60-140 <br /> Matrix Spike Dup(1010206-MSD1) Source S101239-04 Prepared&Analyzed 01/18/01 <br /> Benzene 944 0 500 ug/l 100 ND 944 60-140 158 25 <br /> Toluene 996 0 500 100 ND 996 60-140 336 25 <br /> Ethylbenzene 105 0 500 100 ND 105 60-140 282 25 <br /> Xylenes(total) 272 0 500 300 ND 907 60-140 5 02 25 <br /> Methyl tert-butyl ether 916 2 50 100 ND 91 6 60-140 5 11 25 <br /> Surrogate a a a-Trifluorwoluene 113 100 113 60-140 <br /> nota Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 19 of 24 <br />