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404 N.Wiget Lane <br /> Sequoia Walnut Creek,CA 94598 <br /> (925)988-9600 <br /> FAX(925)988-9673 <br /> Analytical www.sequolalabs.com <br /> &an Joaquin Company Inc. Project; 7500 W 11th St.Steet Tracy <br /> 1120 Hollywood Ave.No,3 Project Number: 49902.012 Reported; <br /> Oakland CA.,94602 Project Manager: Dai Watkins 24-May-00 14:51 <br /> i" Diesel Hydrocarbons (C9-C24) by DHS LUFT- Quality Control <br /> Sequoia Analytical -Morgan Hill <br /> t Reporting Spike Source %REC RPD <br /> ;Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch OE16027-EPA 3550A <br /> Plunk(01,16027-BLK1) Prepared:02-May-OO Analyzed: 12-May-00 <br /> Diesel Rarnge Hydrocarbons ND 1.00 mg/kg <br /> Surrogate:n-Peruacosane 1.50 " 1.11 135 50-150 <br /> SCS(OE+16027-851) Prepared:02-May-OO Analyzed: 12-May-00 <br /> Diesel Range Hydrocarbons 17.0 1.00 mglkg 15.0 113 60-140 <br /> :'Nurrogate:n-Pentacosane 1.50 1.11 135 50-150 <br /> SCS(0)r16027-BS2) Prepared:02-May-OO Analyzed:l2-May-00 <br /> Diesel Range Hydrocarbons 16,4 1.00 mg/kg 15.0 109 60-140 <br /> .Prrogate:n-Pentacosane 1.30 " L!I 117 50-150 <br /> Batch OE16050-EPA 3510B <br /> (OL16050-BLK1) Prepared:02-May-00 Analyzed: 12-May-00 <br /> t;r1 Range Hydrocarbons ND 0.0250 mgq <br /> Surrogate:n Pentacosane ° 0.0349 " 0.0333 105 50-150 <br /> ` I <br /> ]LCS(01,16050-BS1) Prepared:02-May-00 Analyzed: 12-May-00 <br /> t`'Diesel Range Hydrocarbons 0.517 0.0250 mg4 0,500 103 60.140 <br /> Surrogate:n-Pemacosane 0.0392 0.0333 118 50-150 <br /> 'ICS Dup.(0E16050-BSD1) Prepared:02-May-00 Analyzed: 12-May-00 <br /> Diesel Range Hydrocarbons 0.438 0.0250 mg/! 0,500 87.6 60.140 16.5 50 <br /> -:`'Surrogate.,n-Pentacosane 0.0340 0.0333 102 50-150 <br /> `Batch OE17003-EPA 3550A <br /> ,Obnk(OR17003-BLKl) Prepared:03-May-40 Analyzed: 18-May-00 <br /> f .]iesel Runge Hydrocarbons ND 1.00 mg/kg <br /> Surrogate:n Pentacosane 1.40 1.11 126 50-150 <br /> !1 <br /> ='S equoia Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document.This analytical report must be reproduced in its entirety. <br /> Page 26 of 28 <br />