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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> �Ily Analytical 404 N W19et Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)9869673 <br /> 819 Stnker Avenue,Suite 8 Sacramento CA 95834 (916) 921-9600 FAX(916)921 0100 <br /> no- <br /> l�Ni-West <br /> Client project I <br /> l= #2308'00Catellus-Stockton k <br /> 1777 Botelho Dr, Ste 260 Matrbc Liquid <br /> Walnut Creek, CA 94596 <br /> Attention Arun Chemburkar CC Sample Group 4111006-16 Reported Dec 5, 1994 <br /> ` rvo 4 ,- r • ' P r r . 4 ` ,. " ° s s^`•%.,�� ^ niri , x . .nn <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Diesel <br /> Method EPA 8015 Mod <br /> Analyst- K v S <br /> MS/MSD <br /> Batch#: BLK112494 <br /> ' Date Prepared. 11/24/94 <br /> Date Analyzed: 11/30/94 <br /> Instrument 1.D.#: HP-3A <br /> Conc.Spiked, "lig/L <br /> Matrix Spike <br /> %Recovery: 72 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 70 <br /> ' Relative% <br /> Difference: 2.8 <br /> LCS Batch# BLK112494 <br /> Date Prepared: 11/24/94 <br /> ' Date Analyzed: 11/30/94 <br /> Instrument l.D.#: HP-3A <br /> LCS % <br /> Recovery- 72 <br /> Recovery <br /> Control Limits• 28-122 <br /> Please Note <br /> The LCS is a control sample of known,interferent free matnx that is analyzed using the same reagents, <br /> SEQUOIA ANALYTICAL, #1271 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 /> this F908v99AQt�s from the matrix spike does not fall within specified control limits due to matrix <br /> Kenneth K F Lee interference,the LCS recovery is to be used to validate the batch <br /> Laboratory Director <br /> 4111006 ERM <6n <br />