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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364-%00 FAX(4 1.5) 364 9233 <br /> Analytical 1900 Bates Avenue Suite L Concord,CA 94520 (510) 686 9600 FAX (510)686 9689 <br /> 819 Sinker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> RESNA Client Project ID 054006 06, Coca-Cola Y <br /> 1710 Main Street Matnx Liquid <br /> Escalon, CA 95320 <br /> Attention Jeanne Homsey QC Sample Group 4CJ0901 Reported Apr 4, 1994 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Analyst J Minkel J Minkel J Minkel J Minkel <br /> MS/MSD <br /> Batch#: 4CG8901 4CG8901 4CG8901 4CG8901 <br /> Date Prepared - - _ <br /> Date Analyzed: 3/31/94 3/31/94 3/31/94 3/31/94 <br /> I Instrument I D #• GCHP-3 GCHP-3 GCHP-3 GCHP-3 <br /> Conc. Spiked. long/L 10,ug/L 10Ng/L 301rg/L <br /> Matrix Spike <br /> % Recovery: 100 100 98 100 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery. 94 96 92 93 <br /> Relative% <br /> ' Difference: 6 2 4 1 s 3 73 <br /> v < <br /> LCS Batch r: <br /> Date Prepared: <br /> Date Analyzed* <br /> Instrument I D.#. <br /> LCS % - <br /> Recovery: <br /> % Recovery <br /> Control Limits- 71-133 72-128 72.130 71-120 <br /> Please Note <br /> The LCS is a control sample of known,interferent free matnx that is analyzed using the same reagents, <br /> pSEQUOIA ANALYTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> [u— fortified with known quantities of specific compounds and subjected to the entire analytical procedure If <br /> � dmk— the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> Vickie Tague Clark interference,the LCS recovery is to be used to validate the batch <br /> Project Manager 4CJ0901 WAT <2> <br />