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404 N.Wiget Lane <br /> Sequoia Walnut Creek, 94598 <br /> -9600 <br /> (925)98 968-9GD0 <br /> FAX(925)988-9673 <br /> rn�'Ia) Analytical www.sequoialabs.com <br /> San Joaquin Company Inc. Project: 7500 W l I lh St.Steet Tracy <br /> 1120 Hollywood Ave.No.3 Project Number: #9902.012 Reported: <br /> Oakland CA.,94602 Project Manager: Dai Watkins 24-May-00 14:51 <br /> Total Furgeable Hydrocarbons (C6-C12) and BTEX by DHS LUFT_ Quality Control <br /> Sequoia Analytical -Walnut Creel; <br /> L'''d Repotting Spike Source %REC RPD <br /> '&&I dlyte - Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> 13atch OE01002-EPA 5030B [MeOH] <br /> , atrix Spike Dup (OE 01002-MSD 1) Source: W004632-01 Prepared&Analyzed; 01-May-0O <br /> Benzene 0.654 0.0050 mg/kg 0.800 ND 81.7 50-150 5.34 20 <br /> -Toluene ' 0.700 0.0050 0.800 ND 87.5 50-150 4.98 20 <br /> 0.754 0.0050 <br /> ernzene 0.800 ND 94.2 50-150 3.78 20 <br /> thylbZlenes(total) 2.23 0,0050 2.40 ND 92.9 50-150 2.73 20 <br /> _44irrogate:a.o,a-T4uorololuene 0.614 " 0.600 102 40-140 <br /> =-_$itch OE01003-EPA 5030E [PIT] <br /> Thank(OE01003-BILK1) Prepared&Analyzed:Ol-May-00 <br /> hurgeable Hydrocarbons ND 50 ugtl <br /> I <br /> benzene ND 0.50 " <br /> Toluene ND 0.50 " <br /> 11 -kbenzene ND 0.50 " <br /> �es(total) ND 0.50 " <br /> Surrogate:a,a,a-Triuorotoluene 31.1 " 30.0 104 70-130 <br /> I :I <br /> (OE01003-BSI) Prepared&Analyzed:01-May-00 <br /> -i3erzene 20.2 0.50 ug/l 20.0 101 70-130 <br /> Toluene 20.4 0.50 20.0 102 70-130 <br /> 1`�Tthylbenzene 20.6 0.50 20.0 103 70-130 <br /> Cylenes(total) 59.6 0.50 " 60.0 99.3 70-130 <br /> Surrogate:a,a,a-Trifluorololuene 2Z7 30.0 92.3 70-130 <br /> -i <br /> .iVlatrix Spike(OE01003-MSI) Source: W004568-16 Prepared&Analyzed:01-May-00 <br /> Benzene 20.5 0.50 ugll 20.0 ND 103 70-130 <br /> Toluene 20,7 0.50 20.0 ND 104 70-130 <br /> W-thylbenzene 20.8 0.50 20.0 ND 104 70-130 <br /> "kylenes(total) 60.0 0.50 60.0 ND 100 70-130 <br /> --.$urrogate:a,a,o-Difluorotoluene 28,4 .30.0 94.7 70-130 <br /> I <br /> i <br /> i <br /> -iuoia Analytical-Walnut Creek The results in this report apply to the scruples analyzed in accordance with the chain of <br /> custody document.This analytical report must be reproduced in its entirety. <br /> Page 23 of 28 <br /> j <br />