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a- wwwSequoia 819 Striker Avenue,Suite 8 <br /> Sacramento,GA 95834 <br /> (916)921-9600 <br /> Analytical FAX(916)921-01p0 <br /> .sequplalabs.com <br /> I0 <br /> Blaine Tech Services, Inc. Project: Equiva,341 East Main St.,Ripon, CA <br /> 1680 Rogers Avenue Project Number: 001020-L I Reported: <br /> San Jose CA,95112-1105 Project Manager: Nick Sudano 11/28/00 12:20 <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 0100392- EPA 5030B (MeOH) <br /> Blank(0100392-BLKI) Prepared&Analyzed: 10/3 1/00 <br /> Purgeabie Hydrocarbons ND 50.0 ug/l <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 2.50 <br /> Surrogate:a,a,a-Tris luorotoluene 9.30 10.0 93.0 60-140 <br /> LCS(0 100392-BS 1) Prepared&Analyzed: 10/31/00 <br /> Benzene 10.2 0.500 ug/l 10.0 102 70-130 <br /> Toluene 9.87 0.500 10.0 98.7 70-130 <br /> Ethylbenzene 9.86 0.500 10.0 98.6 70-130 <br /> Xylenes(total) 29.6 0.500 30.0 98.7 70-130 <br /> Methyl tert-butyl ether 8.79 2.50 10.0 87.9 70-130 <br /> Surrogate:a,a,a-Triuorololuene 10.3 10.0 103 60-140 <br /> _Matrix Spike(0100392-MSI) Source:S010396-06 Prepared&Analyzed: 10/31/00 <br /> Benzene 9.34 0.500 ug/l 10.0 ND .93.4 60-140 <br /> Toluene 9.41 0.500 10.0 ND 94.1 60-140 <br /> Ethylbenzene 9.57 0.500 10.0 ND 95.7 60-140 <br /> Xyl6nes(total) 28.3 0.500 30.0 ND 94.3 60-140 <br /> Methyl tert-butyl ether 9.47 2.50 10.0 ND 94.7 60-140 <br /> Surrogate:a,a,a-Triuorololuene 8.94 10.0 89.4 60-140 <br /> Matrix Spike Dup(0100392-MSD1) Source: S010396-06 Prepared&Analyzed: 10/31/00 <br /> Benzene 9.78 0.500 ug/l 10.0 ND 97.8 60-140 4.60 25 <br /> Toluene 9.78 0.500 10.0 ND 97.8 60-140 3.86 25 <br /> Ethylbenzene 9.85 0.500 10.0 ND 98.5 60-140 2.88 25 <br /> Xylenes(total) 29.0 0.500 30.0 ND 96.7 60-140 2.44 25 <br /> Methyl tert-butyl ether 10.3 2.50 10.0 ND 103 60-140 8.40 25 <br /> Surrogate:a,a,a-Triuorotoluene 9.21 10.0 92.1 60-140 <br /> Sequoia 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 17 of 21 <br />