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404 N.Wlget Lane <br /> Sequoia Walnut Creels CA 99598 <br /> (925)988-9600 <br /> FAX(925)988-9673 <br /> Analytical www.sequolalabs,com <br /> San Joaquin Company Inc. Project: 7500 W 11th St.Steet Tracy <br /> 1120 Hollywood Ave,No.3 Project Number: 4 9902.012 Reported: <br /> 1 Oakland CA.,94602 Project Manager: Dai Watkins 11-May-00 16:38 <br /> Total Purgeable Hydrocarbons (C6-C12) and BTEX by DHS LUFT- Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> _14naiyta Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> atch OD27002-EPA 5030B [MeOH] <br /> L CS Dup(OD27002-BSD1) Prepared&Analyzed:27-Apr-00 <br /> .:,:$enzene 0.708 0.0050 mg&g 0.800 88.5 50-150 4.03 20 <br /> Toluene 0.770 0.0050 0.800 96.2 50-150 3.97 20 <br /> Eihylbenzene 0.824 0.0050 0.800 103 50-150 1.22 20 <br /> ?xylenes(total) 2.44 0.0050 2.40 102 50-150 2.07 20 <br /> Surrogate;a,a,a-Trifluorotoluene 0.732 " 0.600 122 40-140 <br /> 'Matrix Spike(OD27002 MSI) Source:W004539-04 Prepared&Analyzed:27-Apr-00 <br /> �-enzone 1.04 0.0050 mglkg 0.800 ND 130 50-150 <br /> 1 <br /> Toluene 1.12 0.0050 0.800 ND 140 50-150 <br /> Fihylbenzene 1.19 0.0050 0.800 ND 149 50-150 <br /> (total) 3.47 0.0050 2.40 ND 145 50-150 <br /> I. <br /> Surrogate:gaa-Trifluorotoluene 0.660 " 0.600 110 40-140 <br /> .Matrix Spike Dup (OD27002 AM 1) Source:W004539-04 Prepared&Analyzed:27-Apr-00 Q-01 <br /> -`�enzene 1.10 0.0050 mg/kg 0.800 ND 138 50-150 3-61 20 <br /> Toluene 1.18 0.0050 " 0.800 ND 147 50-150 5,22 20 <br /> 3thylbenzene 1.25 0.0050 0.800 ND 156 50-150 4.92 20 <br /> Yylenes(total) 3.68 0.0050 2.40 ND 153 50.150 5.87 20 <br /> Surrogate;a,a,a-Tris luorotoluene 0.660 " 0.600 110 40-140 <br /> I...�atch OD28002-EPA 5030B[MeOH] <br /> -Blank(OD28002-BLK1) Prepared&Analyzed.28-Apr-00 <br /> 7urgeable Hydrocarbons ND 1.0 mg4cg <br /> �enzane ND 0.0050 " <br /> foluane ND 0.0050 " <br /> Elhylbenzene ND 0,0050 " <br /> j, Xylenes(total) ND 0.0050 " <br /> -''Surrogate;gga-TrrfTuorololuene 0.652 " 0.600 109 40240 <br /> f <br /> . i <br /> equoia Analytical-Walnut Creek The results in this report apply to the sanples analyzed in accordance with the chain of <br /> custody document This amalyticol report must be reproduced in its entirety. <br /> .' a Page 18 of 22 <br />