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404 N.Wlget Lane <br /> Sequoia Walnut Creek,CA 94598 <br /> 98 <br /> (925)988-9600 <br /> FAX(925)986-9673 <br /> Analytical www.sequoialabs.com <br /> San Joaquin Company Inc. Project: 7500 W l lth St.Steet Tracy <br /> 1120 Hollywood Ave.No.3 Project Number: it 9902.012 Reported: <br /> Oakland CA.,94602 Project Manager: Dai Watkins 26-May-00 12:24 <br /> Total Purgeable Hydrocarbons (C6-C12) and BTEX by DHS LUFT - Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> Reporting Spike Source %RLC RPD <br /> iAnalyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> _..:Batch OE22002-EPA 5030B [PITT <br /> $lanit(OE22002-BLKl) Prepared&Analyzed:22-May-00 <br /> Purgeable Hydrocarbons ND 50 ug/1 <br /> $ernzene ND 0.50 <br /> Zoluene ND 0.50 " <br /> Ethylbenzene ND 0.50 <br /> Xylenes{lois]) ND 0.50 " <br /> pwrogaie:a,a,a-Trifluoraioluene 2$8 " 30.0 96.0 70-130 <br /> LCS(OE22002-BS1) Prepared&Analyzed:22-May-00 <br /> $enzene 16.5 0.50 ugll 20.0 82.5 70-130 <br /> �otuene 17.5 0.50 20,0 87.5 70-130 <br /> Ethylbenzene 18.1 0.50 20.0 90.5 70-130 <br /> ?{ylenes(total) 54.4 0.50 60.0 90.7 70.130 <br /> a,a,a-Tr flucrotoluene 188 30.0 96.0 70-130 <br /> Matrix Spike(OE22002-MSI) Source:W005273-08 Prepared&Analyzed:22-May-00 <br /> rr enzene 16.I 0.50 ugil 20.0 ND 80.5 70-130 <br /> Toluene 17.2 0.50 20.0 ND 86,0 70-130 <br /> lEthylbenzene 17.9 0.50 20.0 ND 89.5 70-130 <br /> Nylenes(total) 53.3 0.50 60,0 ND 88.8 70-130 <br /> 3urrogate:a,a,a-Triuorotoluene 28.2 30.0 94.0 70-130 <br /> Matrix Spike Dup (OE22002-MSD1) Source: W005273-08 Prepared&Analyzed:22-May-00 <br /> enzene 15.9 0.50 do 20.0 ND 79.5 70-130 1.25 20 <br /> Toluene 16,9 0.50 20.0 ND 84.5 70-130 1.76 20 <br /> Ethylbenzene 17.7 0.50 20.0 ND 88.5 70-130 1.12 20 <br /> Xylenes(total) 53.6 0.50 60.0 ND 89.3 70-130 0.561 20 <br /> surrogate:a,a,a-Trifluorotoluene 28.3 30.0 94.3 70-130 <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the sannples analyzed in accordance with the chain of <br /> custody document.This analytical report must be reproduced in its entirety. <br /> i <br /> i <br /> Page 9 of 17 <br />