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11819• Striker Avenue Suite 8 <br /> Sequo1aSacramento CA 95834 <br /> FAX{916)921-0100 <br /> Analyticalwww sequoialabs com <br /> EL V <br /> SC )R International-Rancho Cordova Project Arco 4932,Stockton,CA <br /> E <br /> 3017 Kilgore Road,Suite 100 Project Number NIA Reported <br /> Ra..ho Cordova CA,95670 Project Manager Rusty Benkosky 02/23/01 16 01 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE in Air by DHS LUFT - Quality Control <br /> Sequoia Analytical - Sacramento <br /> Reporting Spike source %REC RPD <br /> Analyte Result Limn UnnS Level Result %REC Limits RPI) Lim( Notes <br /> Batch 1020188- EPA 5030B(PIT) <br /> Blank(1020188-BLKI) Prepared&Analyzed 02/15/01 <br /> 9 urgeable Hydrocarbons ND 100 mg/m'Air <br /> enzene ND 00500 <br /> Toluene ND 00500 <br /> Ethylbenzene ND 00500 " <br /> ylenes(total) ND 00500 <br /> ethyl tert-butyl ether ND 0 500 <br /> Surrogate a a a-Triuorotoluene 184 200 920 60-140 W <br /> tCS(1020188-BSI) _ Prepared&Analyzed 02/15/01 <br /> Benzene 1 72 00500 mg/m'Air 200 860 70-130 <br /> Tkwz <br /> l1 78 00500 200 890 70-130 <br /> 1 82 00500 200 910 70-130 <br /> 5 62 00500 600 937 70-130 <br /> Methyl tert-butyl ether 1 66 0 500 200 830 70-130 <br /> �urrogate a a a-Tri luorotoluene 1 78 200 890 60-140 <br /> LCS Dup(102018_8-BSDI) _ _ Prepared&Analyzed 02/15/01 <br /> enzene 1 80 00500 mg/ml Air 200 900 70-130 455 25 <br /> Toluene 1 86 00500 200 930 70-130 440 25 <br /> thylbenzene 1 92 00500 200 960 70-130 535 25 <br /> Xylenes(total) 590 00500 600 983 70-130 486 25 <br /> ethyl tert-butyl ether T 1 68 0 500 200 840 70-130 1 20 25 <br /> urrogate a a a-Trifluorololuene 186 200 930 60-140 <br /> 1 <br /> to Analytical-Sacramento The results to this report apply to the samples analyzed to accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> ' Page 4 of 6 <br /> �r <br />