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Sequoia 819 r Avenue Suite 8 <br /> Sacramento CA 95834 <br /> (916)921-96M <br /> FAX(916)921-0100 <br /> Analytical www sequoialabs com <br /> Blaine Tech Services,Inc Project Equtva,2575 Country Club, Stockton,CA <br /> 1680 Rogers Avenue Project Number 010412-JI 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 - Quah.ty 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 1040237-EPA 5030B PIT <br /> Blank(1040_23_7-BLKI) _ _ Prepared&Analyzed 04/18/01 <br /> Purgeable Hydrocarbons ND 500 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 250 " <br /> Surrogate a a a-Tri luorotoluene 9 85 100 98 5 60-140 <br /> LCS(1040237-BSI) Prepared&Analyzed 04/18/01 <br /> Benzene T 848 0 500 ug/l 100 848 70-130 <br /> Toluene 9 18 0 500 " 100 91 8 70-130 <br /> ylbenzene 966 0 500 100 966 70-130 <br /> nes(total) 285 0 500 300 95 0 70-130 <br /> ethyl tert-butyl ether 774 250 100 774 70-130 <br /> Surrogate a a a-Triuorotoluene 101 100 101 60-140 <br /> Matrix Spike(1040237-MS1) Source S104178-05 Prepared&Analyzed 04/18/01 <br /> Benzene 8 15 0 500 ugtl 10 0 ND 815 60-140 <br /> Toluene 9 09 0 500 100 ND 909 60-140 <br /> Ethylbenzene 958 0 500 100 ND 958 60-140 <br /> Xylenes(total) 296 0 500 300 ND 987 60-140 <br /> Methyl tert-butyl ether 7 98 250 100 ND 798 60-140 <br /> Surrogate aa a-Triuorotoluene 111 100 111 60-140 <br /> Matrix Spike Dup(1040237-MSDI) Source S104178-05 Prepared&Analyzed 04/18/01 <br /> Benzene 8 I7 0 500 ug/l 100 ND 81 7 60-140 0 245 25 <br /> Toluene 911 0 500 100 ND 91 1 60-140 0 220 25 <br /> Ethylbenzene 9 61 0 500 100 ND 96 1 60-140 0 313 25 <br /> Xylenes(total) 296 0 500 300 ND 98 7 60-140 0 25 <br /> Methyl tert-butyl ether 772 250 100 ND 772 60-140 3 31 25 <br /> Surrogate aa a-Tr!fluorotoluene 108 100 108 60-140 <br /> �uoia 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 to its entirety <br /> Page 18 of 25 <br />