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404 N.Wiget Lane f <br /> Sequoia Walnut Geek,CA 945% <br /> (925)988-9600 1 <br /> Analytical wFAX(925)988-9673 <br /> vwv.sequolalabs.com ' <br /> { <br /> Gettler Ryall,Inc.-Dublin Project: Chevron <br /> 6747 Sierra Court Suite J Project Number: Chevron#9-8264 Reported: <br /> Dublin CA,94568 Project Manager: Deanna L.Harding 15-Jun-0011:50 <br /> Dissolved Metals by EPA 200 Series Methods - Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> i <br /> Reporting Spike Source %REC RPD <br /> JAnalyte Result Limit Units Level Result OAREC Limits RPD Limit Notes <br /> Batch OE22012-200.7 <br /> Blank(OE22012-BLK1) Prepared:22-May-00 Analyzed:07-Jun-00 i <br /> Calcium ND 0.50 mg/l <br /> Chromium ND 0.0100 <br /> Lead ND 0.0200 # <br /> Nickel ND 0.0100 " <br /> I. Zinc ND 0.0100 " <br /> i <br /> LCS(OE22012-BSI) Prepared:22-May-00 Analyzed:07-Jun-00 j <br /> Calcium 0.990 0.50 mg/l 1.00 99.0 80-120 <br /> 4 Chromium 0.990 0.0100 1.00 99.0 80-120 <br /> Lead 1.03 0.0200 1.00 103 80-120 <br />� ?Nickel <br /> 1.05 0.0100 1.00 105 80-120 <br /> 1.05 0.0100 1.00 105 80-120 <br /> rDup(OE22012-BSD1) Prepared:22-May-00 Analyzed:07-Jun-00 <br /> Calcium 1.00 0.50 mg/1 1.00 100 80-120 1.01 20 <br /> Chromium 1.00 0.0100 " 1.00 100 80-120 1.01 20 <br /> Matrix Spike(OE22012-MSI) Source:W005267-12 Prepared:22-May-00 Analyzed:07-run-00 <br /> Calcium 170 0.50 mg/l 1.00 170 0 80-120 <br /> Chromium 0.990 0.0100 1.00 ND 99.0 80-120 <br /> Lead 1.03 0.0200 1.00 ND 103 80.120 <br /> Nickel 0.860 0.0100 " 1.00 ND 86.0 80-120 <br /> Zinc 1.02 0.0100 " 1.00 0.0300 99.0 80-120 <br /> Matrix Spike Dup(OE22012-MSDI). Source: W005267-12 Prepared:22-May-00 Analyzed:07-Jun-00 <br /> Calcium 195 0.50 mg/l 1.00 170 2500 80-120 13.7 20 <br /> Chromium 1.00 0.0100 1.00 ND 100 80-120 1.01 20 <br /> Lead 1.03 0.0200 1.00 ND 103 80-120 0 20 <br /> Nickel 0.850 0.0100 1.00 ND 85.0 80-120 1.17 20 <br /> Zinc 1.05 0.0100 1.00 0.0300 102 80.120 2.90 20 <br /> i <br /> ioia Analytical-Walnut Creels The results in this report apply to the samples atalyced in accordance with the deep of <br /> f custody document This analytical report must he reproduced in its entirety. <br /> I <br /> Page 13 of 23 <br />