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Sequoia 819 Avenue Suite4 <br /> Sacramento CA 95834 <br /> (916)921-9600 <br /> FAX Analytical (916)alabs921 c 00 <br /> www sequolEabs om <br /> SECOR International-Rancho Cordova Project Former Chevron 9-8632,Tracy,CA <br /> 3017 Kilgore Road, Suite 100 Protect Number 077 43469 150 Reported <br /> Rancho Cordova CA,95670 Project Manager Bill Brasher 06/15/01 13 20 <br /> Total Purgeable Hydrocarbons (C6-CX2) and BTEX by DHS LUFT - Quality Control <br /> Sequoia Analytical - Walnut Creek <br /> Reporting S ike Source %REC RPD <br /> P <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1F06001 - EPA 5030B PIT <br /> Blank(1F06001-BLK1) Prepared&Analyzed 06/06/01 <br /> Purgeable Hydrocarbons ND 50 ug/l <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Surrogate a a a-Trti luorotoluene 328 300 109 70-130 <br /> LCS(1F06001-BSI) Prepared&Analyzed 06/06/01 <br /> Benzene 21 9 0 50 ugll 200 110 70-130 <br /> Toluene 209 0 50 200 104 70-130 <br /> Ethylbenzene 21 7 0 50 200 108 70-130 <br /> es(total) 61 8 0 50 600 103 70-130 <br /> arrogate a,a,a-Tri/7uorololuene 28 7 300 95 7 70-130 <br /> LCS Dup(1F06001-BSDI) Prepared&Analyzed 06/06/01 <br /> Benzene 227 0 50 ug/I 200 114 70-130 3 59 20 <br /> Toluene 223 0 50 200 112 70-130 648 20 <br /> Ethylbenzene 229 0 50 200 114 70-130 538 20 <br /> Xylenes(total) 63 0 0 50 600 105 70-130 1 92 20 <br /> Surrogate a a a-Triuorotoluene 298 300 993 70-130 <br /> Batch 1F06002- EPA 5030B McOH <br /> Blank(IF06002-BLK2) Prepared&Analyzed 06/06/01 <br /> Purgeable Hydrocarbons ND 1 0 mg/kg <br /> Benzene ND 00050 " <br /> Toluene ND 00050 " <br /> Ethylbenzene ND 00050 " <br /> Xylenes(total) ND 00050 " <br /> Surrogate a a a-Triuorololuene 0 728 0 600 121 40-140 <br /> ota Analytical -Sacramento 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 16 of 18 <br />