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� H <br /> Sequoia 819 Straker Avenue S S <br /> Sacramento CA 95858 34 <br /> (916)921-9600 <br /> Analytical FAX(916)921-0100 <br /> EMCON-Sac Project ARCO 2.130,Stockton, CA Sampled 614/99 to 616/99 <br /> 1433 N Market Blvd Project Number 21775-229 004 Received 6/7/99 <br /> Sacramento,CA 95834 Project Manager Dave holey Reported 6127199 <br /> Total Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUFTIQuality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Blank(conhnuedl 1060183-BLK1 <br /> Surrogate a,a a-Trifluorotoluene 6118199 /00 844 ugll 600-140 84 4 <br /> LO 9060183-BS1 <br /> Benzene 6118/99 100 920 ug/l 700-130 920 <br /> Toluene too 931 700-130 93 1 <br /> Ethylbenzene 10 0 926 700-130 926 <br /> Xylenes(total) 300 279 700-130 93 0 <br /> Methyl tert.butyl ether 10 0 9 91 700-130 99 1 <br /> Surrogate a,a,a-Triuorotoluene 100 826 600-140 82 6 <br /> Mil_trix Spike 9060183-MSI S906152-07 <br /> Benzene 6/18/99 too ND 103 ug/l 600-140 103 <br /> Toluene 100 ND 104 600-140 104 <br /> lbenzene " 10 0 ND 103 " 600-140 103 <br /> nes(total) 300 ND 31 3 600-140 104 <br /> Methyl tert-butyl ether 100 ND 12 9 600-140 129 <br /> Surrogate a a a-Triuorotoluene 100 928 600-140 92 8 <br /> Atrix Spike Dun 9060183-MSDI 59906152-07 <br /> Benzene 6/18199 too ND 10 1 ug/1 600-140 101 250 1 96 <br /> Toluene 1. 100 ND 101 600-140 101 25 0 293 <br /> Ethylbenzene too ND 10 2 600-140 102 25 0 0 976 <br /> Xylenes(total) 300 ND 31 9 600-140 106 25 0 190 <br /> Methyl tent-butyl ether 100 ND 12 3 600-140 123 250 476 <br /> Surrogate a a a-Tnfluorotoluene 100 927 600-140 92 7 <br /> Batch. 9060224 Date Prepared, 6/18199 Extraction Method, EPA 5030B(P/T) <br /> Blank 9060224-BLK1 <br /> Purgeable Hydrocarbons 6/18199 ND ug/l 500 <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 Soo <br /> Surrogate a a a-Triuorotoluene 100 9 85 600-140 98 5 <br /> LCS 9060224-BS1 <br /> Benzene 6118/99 too 100 ug/l 700-130 100 <br /> Toluene too 102 700-130 102 <br /> Ethylbenzene 10 0 10 2 700-130 102 <br /> nes(total) - <br /> Sequoia Analytical-Sacramento *Refer to end o re <br /> q y * f f port for test of notes and definitions <br /> Page 7 of 1 I <br /> rp� <br />