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Sequoia 404 N WiLane <br /> Walnut Creek CAA 94598 <br /> 4 (925)98$-9600 <br /> 4D q4w Analytical www <br /> 988-9673 <br /> sequoequolalabs corn <br /> 0 <br /> Gettler Ryan Inc -Dublin Project Chevron <br /> 6747 Sierra Court Suite J Project Number Chevron# 9-2033 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 04-Sep-0I 11 14 <br /> Dissolved Metals by EPA 200 Series Methods - Quality Control <br /> Sequoia Analytical - Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result °/"REC Limits RPD Limit Notes <br /> Batch 1H2200$-200 7 - <br /> Blank(IH22008-BLKI) Prepared 22-Aug-01 Analyzed 3I-Aug-01 <br /> Cadmcum ND 0 010 mg/l <br /> Chromium ND 0 010 " <br /> Lead ND 0 020 " <br /> Nickel ND 0 010 " <br /> Zinc ND 0 020 " <br /> LCS(IH22008-BSI) Prepared 22-Aug-01 Analyzed 31-Aug-01 <br /> Cadmium 0 995 0 010 mg/l 1 00 995 80-120 <br /> Chromium 0 952 0 010 100 952 80-120 <br /> Lead 1 05 0 020 100 105 80-120 <br /> Nickel 0 940 0 010 100 940 80-120 <br /> Zinc 0 998 0 020 100 998 80-120 <br /> LCS Dup(IH22008-BSD1) Prepared 22-Aug-01 Analyzed 31-Aug-01 <br /> Cadmium 101 0 010 mg/l 1 00 101 80-120 1 50 20 <br /> Chromium 0 940 0 010 100 940 80-120 127 20 <br /> -E. ad— T <br /> 106 0 020 mm 100 106 80-120 0 948 20 <br /> Nickel 0 948 0 010 100 948 80-120 0 847 20 <br /> Zinc 101 0 020 " 100 101 80-120 1 20 20 <br /> Matrix Spike(IH22008-MSI) Source W108341-01 Prepared 22-Aug-01 Analyzed 31-Aug-01 <br /> Cadmium 104 0 010 mg/I 1 00 ND 104 80-120 <br /> Chromium 0 976 0 010 100 ND 976 80-120 <br /> Lead 1 12 0 020 100 0 035 108 80-120 <br /> Nickel 0 957 0 010 " 100 ND 957 80-120 <br /> Zinc 121 0 020 1 00 015 106 80-120 <br /> Matrix Spike Dup(1H22008-MSDI) Source W108341-01 Prepared 22-Aug-01 Analyzed 31-Aug-til <br /> Cadmium 105 0 010 mg/l 1 00 ND 105 80-120 0 957 20 <br /> Chromium - --0983 - 0 010- - 1 00 - -ND 983 80-120 0 715 20 <br /> Lead 1 07 0 020 " 100 0 035 104 RO-170 4 57 In <br /> Nickel 0 977 0 010 1 00 ND 977 80-120 207 20 <br /> Zinc 1 19 0 020 100 015 104 80-120 1 67 20 <br /> Sequoia Analytical - Walnut Creels The results in this report apply to the samples analyzed in accordance with the chair <br /> custody document This analytical report must be reproduced in its entrret <br /> Page 15 of 26 <br />