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Sequoia 4 N Wilane <br /> Walnut Creek CAA 94598 <br /> 15) (925)988-96W <br /> Iwo Analytical www <br /> 988-9673 <br /> sequoe�uofalabs co <br /> Gettler Ryan,Inc -Dublin Project Tosco <br /> 6747 Sierra Court Suite J Project Number Tosco# 11192 Reported <br /> Dublin CA,94568 Project Manager Doug Lee 09-May-01 08 03 <br /> Total Metals by EPA 6000/7000 Series Methods - Quality Control <br /> Sequoia Analytical-Walnut Creek <br /> Reporting Spike Source °/oREC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Lumt Notes <br /> Batch 1D30004 -EPA 3050B <br /> Blank(1D30004-BLKI) Prepared&Analyzed 30-Apr-Ol <br /> Lead ND 10 mg/kg <br /> LCS(1D30004-BSJ) Prepared&Analyzed 30 Apr-01 <br /> Lead 508 10 mg/kg 500 102 80-120 <br /> LCS Dap (1D30004-BSDI) Prepared&Analyzed 30-Apr-01 <br /> Lead 51 3 10 mg/kg 500 103 80-I20 0 979 20 <br /> Matrix Spike(ID30004-MS1) Source W104521-01 Prepared 30-Apr-01 Analyzed 01-May-01 <br /> Lead 529 10 mg/kg 500 5 1 956 80-120 <br /> Matrur Spike Dup (1D30004-AiSD1) Source W104521-01 Prepared 30-Apr-01 Analyzed 01-May-01 <br /> Lead 505 10 mg/kg 500 5 1 908 80-120 464 20 • <br /> } <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordance with the ch <br /> custody document This analytical report must be reproduced in its entire y <br /> Page 5 of 6 <br />