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Sequoia 8195�k�ento UCASuite <br /> s 34 <br /> 4 (916)921-9600 <br /> Analytical FAX(9 16)921-0100 <br /> SBCOR International-Sacramento Project ARCO 2093,Tracy,CA Sampled 9116199 <br /> 9912 Business Park Dr,Ste 100 Project Number 077 41844 005 Received 9/21199 <br /> Sacramento,CA 95927 Project Manager R Bcnkosky Re ortcd 10/5199 <br /> Total Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUFT/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spikc Sample QC Reporting Limit Recon RPD RPD <br /> Analyte Analyzed Level Result Result Umts Recon Limits % Limit % Notes' <br /> $etch` 9090263 Date pre ared- 9/24/99 Extraetion Method EPA 50308(PM <br /> Blank 909020-RLK1_ <br /> Purgeable Hydrocarbons 9124/99 ND ug/l Soo <br /> Benzene ND 0 500 <br /> Toluene ND 0.500 <br /> Ethylbenzene ND " 0'500 <br /> Xylenes(total) ND 0.500 <br /> Methyl tcrt butyl ether PID Soo <br /> Surrogate a a,a-Trifluorotoluene 100 910 600-140 970 <br /> LCS 9Q99,263-BSI <br /> Benzene 9/24/99 100 843 ug/I 700-130 843 <br /> Toluene 100 976 700-130 976 <br /> Ethylbcnzene 100 890 700-130 990 <br /> Xylenes(total) 300 264 700-130 880 <br /> tern- 1 ether <br /> 100116 700-130 116 <br /> SM Nja-teAAa-Triflu0rotoluen¢ 100 _ 924 600-140 924 <br /> Matrix Spike 9090263-MSI 5909305-03 <br /> Benzene 9124199 100 ND 806 ug/l 60 0-140 806 <br /> Toluene too ND 843 600-140 84.3 <br /> EthyIbenzene 100 ND 859 600-140 859 <br /> Xyloncs(total) " 300 ND 259 600-140 863 <br /> _Methyl Cert-butyl ether 100 ND 114 600-140 114 <br /> Surrogate aa a-Try7uororoluene " 100 - 810 600-140 810 <br /> 14l20x Spike Dup 9090263-MSD1 5909305-03 <br /> Benzene 9/24199 10 0 ND 925 ugll 600-140 825 25 0 2.33 <br /> Toluene 10 0 ND 859 600-140 859 25 0 188 <br /> Ethylbenzene 10 0 ND 875 600-140 875 250 185 <br /> Xylenes(towl) 300 ND 253 600-140 843 25 0 2.34 <br /> Methyl ten-butyl ether 10 0 ND 119 600-140 119 25 0�M 429 <br /> Surrogate it a a-Tnfluorotoluene 100 849 600-140 849 <br /> Batch 9090282 Date Prepared 9/2d/99 Extrjq0Qn Method: EPA 50309 WO <br /> Blank 9090282-BLK1 <br /> Purgeable Hydrocarbons 9/24199 ND ug/3 $0.0 <br /> Benzene ND " 0 500 <br /> Toluene ND 0.500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(tote]) ND 0 500ND ,. Soo <br /> Methyl tort-butyl ether <br /> SIWa Analytical-Sacramento *Refer to end of report for text of notes and definitions <br /> Page 5 of 7 <br /> OT/Z d Dt s/,oiOIl035 Wd00 So 66, ST ICON <br />