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Sequoia 819 Sinker Avenue 5uile 8 <br /> Sacramento,CA 95834 <br /> (916)921-9600 <br /> Analytical FAX 921-0100 <br /> FAX <br /> sequoequolalabs corn <br /> 0 <br /> Blaine Tech Services,Inc Project Equiva,2575 Country Club, Stockton,CA <br /> 1680 Rogers Avenue Project Number 01041241 Reported <br /> San Jose CA,95112-1105 Project Manager Nick Sudano 05/01/01 11 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 1040204-EPA 5030B (P/T) <br /> Blank(1040204-BLKI) Prepared&Analyzed 04/16/01 <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 953 100 953 60-140 <br /> LCS(1040204-BSI) Prepared&Analyzed 04/16/01 <br /> Benzene 901 0 500 ug/l 100 901 70-130 <br /> Toluene 959 0 500 100 959 70-130 <br /> Ethylbenzene 997 0 500 " 100 997 70-130 <br /> Xylenes(total) 306 0 500 300 102 70-I30 <br /> Methyl tert-butyl ether 875 250 100 87 5 70-I30 <br /> Surrogate aa a-Triuorotoluene 952 100 952 60-140 <br /> Matrix Spike(1040204-MSI) Source 5104179-08 Prepared&Analyzed 04/16/01 _ <br /> Benzene 51 9 0 500 ug/l 100 429 900 60-140 _r <br /> Toluene 107 0 500 100 284 786 60-140 <br /> Ethylbenzene 934 0 500 100 ND 934 60-140 <br /> Xylenes(total) 290 0 500 300 ND 933 60-140 <br /> Methyl tert-butyl ether ND 250 100 ND 60-140 Q-16 <br /> Surrogate a a a-Trifluorotoluene 849 100 849 60-140 <br /> Matrix Spike Dup(1040204-MSD1) Source S104179-08 Prepared&Analyzed 04/16/01 <br /> Benzene 503 0 500 ugll 100 429 740 60-140 3 13 25 <br /> Toluene 108 0 500 100 284 796 60-140 0 930 25 <br /> Ethylbenzene 100 0 500 100 ND 100 60-140 683 25 <br /> Xylenes(total) 296 0 500 300 ND 987 60-140 556 25 <br /> Methyl tert-butyl ether ND 250 100 ND 60-140 25 Q-16 <br /> Surrogate aa a-Trl/7uorotoluene 943 100 943 60-140 <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples anabzed in accordance with the chat <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 15 of 25 <br />