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Sequoiaa-) <br />680 Chale Drive <br />Redwood City, CA 94063 <br />50) 364-9600 <br />FAX (650) 364-9233 <br />Zinc <br />404 N. Wiget Lane <br />Walnut Creek, CA 94598 <br />925) 988-9600 <br />FAX (925) 988-9673 <br />Analytical <br />wo1455 <br />819 Striker Avenue, Suite 8 <br />McDowell Blvd. North, Ste. D <br />Sacramento, CA 95834 <br />Petaluma, CA 94954 <br />(916) 921-9600 <br />(707) 792-1865 <br />FAX (916) 921 0100 <br />FAX (707) 792-0342 <br />Gettler-hyan - uuDiin <br />6747 Sierra Court, Suite J <br />Dublin, CA 94568 <br />Attention: Greg Gurss <br />Matrix: Solid <br />QC Sample Group: 9031092-104 <br />Reported: Mar 17, 1 <br />ANALYTE <br />Cadmium <br />Chromium <br />Nickel <br />Lead <br />Zinc <br />Aroclor 1260 <br />Method: <br />EPA 6010 <br />EPA 6010 <br />EPA 6010 <br />EPA 6010 <br />EPA 6010 <br />EPA 8082 <br />Analyst: <br />J. Kelly <br />J. Kelly <br />J. Kelly <br />J. Kelly <br />J. Kelly <br />Star Analytical <br />MS/MSD <br />LCS031299 <br />LCS031299 <br />LCS031299 <br />LCS031299 <br />LCS031299 <br />Date Prepared: <br />Batch#: <br />9030973 <br />9030973 <br />9030973 <br />9030973 <br />9030973 <br />03V9286 <br />Date Prepared: <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />3/14,99 <br />Date Analyzed: <br />3/15/99 <br />3/15/99 <br />3/15/99 <br />3/15/99 <br />3/15/99 <br />3/15 99 <br />Instrument I.D.#: <br />MV -4 <br />MV -4 <br />MV -4 <br />MV -4 <br />MV -4 <br />- <br />Conc. Spiked: <br />50 mg/kg <br />50 mg/kg <br />50 mg/kg <br />50 mg/kg <br />50 mg/kg <br />67 Ng,'kg <br />Matrix Spike <br />% Recovery: <br />98 <br />110 <br />124 <br />106 <br />132 <br />69 <br />Matrix Spike <br />Duplicate % <br />Recovery: <br />98 <br />110 <br />104 <br />100 <br />92 <br />82 <br />Relative % <br />Difference: <br />0.0 <br />0.0 <br />7.4 <br />3.7 <br />13 <br />17 <br />LCS Batch#: <br />LCS031299 <br />LCS031299 <br />LCS031299 <br />LCS031299 <br />LCS031299 <br />Date Prepared: <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />3/12/99 <br />Date Analyzed: <br />3/15/99 <br />3/15/99 <br />3/15/99 <br />3/15/99 <br />3/15/99 <br />Instrument I.D.#: <br />MV -4 <br />MV -4 <br />MV -4 <br />MV -4 <br />MV -4 <br />LCS % <br />Recovery: <br />104 <br />108 <br />108 <br />98 <br />104 <br />Recovery <br />Control Limits: 80-120 80-120 80-120 80-120 80-120 50-150 <br />SEQUOIA ANALYTICAL, #1271 <br />11 #1894 <br />Julianne Fegley <br />OF <br />Project Manager <br />Please 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 />fortified with known quantities of specific compounds and subjected to the entire analytical procedure. If <br />the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br />interference, the LCS recove is to be used to validate the batch. <br />9031092.GET <28> <br />