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Sequoia 819 Striker Avenue,Suite$ <br /> Sacramento,CA 95834 <br /> 4 (916)921-%00 <br /> ID Analytical FAX(916)921-0100 <br /> IT Group-Rancho Cordova Project: Tosco#4409,Stockton,CA Sampled: 611199 <br /> 11315 Sunrise Gold Circle#A Project Number: 911-011.1A Received: 612199 <br /> Rancho Cordova,CA 95742 Froject Manager. Mike Mitchener Re orted: 613,17199 <br /> Total Purgeable Hydrocarbons(C6-C12),BTEX and MTBE by DHS LUFT <br /> Sequoia Analytleal-Sacramento <br /> Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analyzed Limits Limit Result Unita Notes* <br /> OX-1AZOI S206029-01 %911 <br /> Purgeable Hydrocarbons 9060050 612199 6/2/99 1.00 1.31 mg/kg 1 <br /> Benzene " " 0,00500 ND " <br /> Toluene " " 0,00500 ND " <br /> Ethylbeazene " a.00s00 ND <br /> Xylenes(total) " 0.00500 ND <br /> Methyl tert-butyl 1 ether 0.0500 ND " <br /> Surrogate. a,a,a-Tri%orotoluene " ° 60.0-140 91.5 % <br /> OX-arae S906029-02 so <br /> Purgeable Hydrocarbons 9060050 612199 612199 1.00 12.0 mWkg 2 <br /> Benzene " " " 0.0M0$00 10 " <br /> 0.00500 ND <br /> Toluene " <br /> Tolueneazene " 0.00500 0.0458Ethylb " <br /> ylenes(total) " 0.00500 0.0442 " <br /> thyl tert•buryl ether " " 0.0500 ND " <br /> rrogate: a,a,a-7t ifluorotolue" 60.0-140 92.5 % <br /> nmag'. 590.6.0.79-03 ,d <br /> Purgeable Hydrocarbons 9060050 612199 6/2199 1.00 ND ml; <br /> Benzene " 0.00500 ND " <br /> Toluene 0.00500 ND " <br /> Ethylbenzerte 0.00500 ND " <br /> Xylenes(total) " " " 0.00500 IM " <br /> Methyl tent-butyl ether " 0.0500 ND " <br /> Surrogate: o,a,a-Trifhworotoluene 60.0-140 95.0 9� <br /> 4X-AW 11 S906029.04 SAW <br /> Purgeable Hydrocarbons 9060050 612199 612199 1.00 ND8 <br /> Benzene '� •' 0.00500 ND " <br /> Toluene 0.00500 ND " <br /> Ethylbenzene " " 0.00500 ND <br /> Xylenes(total) " 0.00500 ND <br /> Methyl tert-butyl ether " " 0.0500 ND " <br /> Surrogate: 0,a,a-7nfluorotoluene ° 60.0-140 96.5 % <br /> Purgeable Hydrocarbons 9060050 612199 6/29 1.00 ND mg/kg <br /> Benzene " 0.00500 ND " <br /> Toluene u " 0.00500 ND " <br /> Ethylbenzeae " " 0.00500 ND „ <br /> Xylenes(total) 0.00500 ND " <br /> Sacramento 'Refer to end of report for ten of notes and d t <br /> uoia Analytical nitiohs. <br /> eq Yt <br /> Page 2 of 7 <br /> t,'d ousmion03S Wd6T :E0 66, LT wnr <br />