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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> Analytical 1900 Bates Avenue,Suite L Concord,CA 94520 (510) 686 9600 FAX(510) 686 9689 <br /> 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> RESNA $ ' Client Project ID 15004701, Elkholm'Property <br /> 1710 Main Street Matrix Liquid <br /> Escalon, CA 95320 <br /> Attention John Lane CC Sample Group 4CJ0201 Reported Apr 13, 1994 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Diesel <br /> Method' EPA8015 <br /> Analyst A.Nagra <br /> MS/MSD <br /> Batch#: 4CI8102 <br /> Date Prepared: 4/4/94 <br /> Date Analyzed4/5/94 <br /> Instrument I D #. GCHP-5 <br /> Cone Spiked' 600ug/L <br />. Matrix Spike <br /> % Recovery: 93 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery' 93 <br /> Relative% <br /> Difference. 00 <br /> LCS Batch# - <br /> Date Prepared - <br /> Date Analyzed - <br /> Instrument I.D.#' - <br /> LCS % <br /> Recovery - <br /> °/a Recovery <br /> Control Limits: 28-122 <br /> Please Note <br /> The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br />.SEQUOIA ANALYTICAL 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 /> Vm7utul<' the recovery of anatytes from the matrix spike does not fall within specified control limits due to matrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> Vickie Tague Clark <br /> Project Manager 4CJ0201 WAT <4> <br />