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Sequoia Chesapeake Drive Redwood City, CA 94063 01) 364-9600 FAX (650) 364-9233 <br />N. Wiget Lane Walnut Creek, CA 94598 0) 988-9600 FAX (510) 988-9673 <br />Analytical 819 Striker Avenue, Suite 8 Sacramento, CA 95834 (916) 921-9600 FAX (916) 921-0100 <br />:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::;:::::::::::::::::::::::::............ . <br />111 4 -Tr <br />- Project 7 9 <br />Pr ec 7 6 # <br />CII Client o osco <br />G�ettle�� f�yan��� ��®ublri � e j / y <br />6747 Sierra Court, Suite J Matrix: Solid <br />Dublin, CA 94568 <br />Attention: Doug Lee QC Sample Group: 806-1355 Reported: Jun 16, 1S <br />ANALYTE <br />Cadmium <br />Chromium <br />Lead <br />Nickel <br />Zinc <br />Method: <br />EPA 6010 <br />EPA 6010 <br />EPA 6010 <br />EPA 6010 <br />EPA 6010 <br />Analyst: <br />J. Kelly <br />J. Kelly <br />J. Kelly <br />J. Kelly <br />J. Kelly <br />MS/MSD <br />LCS061198B <br />LCS061198B <br />LCS061198B <br />LCS061198B <br />LCS061198B <br />Batch#: <br />8061355 <br />8061355 <br />8061355 <br />8061355 <br />8061355 <br />Date Prepared: <br />6/15/98 <br />6/15/98 <br />6/15/98 <br />6/15/98 <br />6/15/98 <br />Date Analyzed: <br />6/15/98 <br />6/15/98 <br />6/15/98 <br />6/15/98 <br />6/15/98 <br />Instrument I.D.#: <br />MV -4 <br />MV -4 <br />MV -4 <br />MV -4 <br />MV -4 <br />Conc. Spiked: <br />50 mg/kg <br />50 mg/kg <br />50 mg/kg <br />50 mg/kg <br />50 mg/kg <br />Matrix Spike <br />% Recovery: <br />98 <br />100 <br />90 <br />92 <br />96 <br />Matrix Spike <br />Duplicate % <br />Recovery: <br />100 <br />100 <br />90 <br />94 <br />96 <br />Relative % <br />Difference: <br />2.0 <br />0.0 <br />0.0 <br />1.2 <br />0.0 <br />LCS Batch#: <br />LCS061198B <br />LCS061198B <br />LCS061198B <br />LCS061198B <br />LCS061198B <br />Date Prepared: <br />6/15/98 <br />6/15/98 <br />6/15/98 <br />6/15/98 <br />6/15/98 <br />Date Analyzed: <br />6/15/98 <br />6/15/98 <br />6/15/98 <br />6/15/98 <br />6/15/98 <br />Instrument I.D.#: <br />MV -4 <br />MV -4 <br />MV -4 <br />MV -4 <br />MV -4 <br />LCS % <br />Recovery: <br />102 <br />104 <br />100 <br />104 <br />100 <br />Recovery <br />Control Limits: 80-120 80-120 80-120 80-120 80-120 <br />SEQUOIA /ANALY�;; <br />271 <br />ulianne Fegley <br />Project Manager <br />'lease Note: <br />The LCS is a control sample of known, interferent free matrix that is analyzed using the same reagents, <br />preparation, and analytical methods employed for the samples. The matrix spike is an aliquot of sample <br />ortified with known quantities of specific compounds and subjected to the entire analytical procedure. If <br />he recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br />iterference, the LCS recovery is to be used to validate the batch. <br />8061355.GET <9> <br />