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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 Stnker Avenue Suite B Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> RESNA Client Project !D006 4 06 <br /> 05 , Coca-Cola }} <br /> 1710 Main Street Matra Liquid <br /> ' Escalon, CA 95320 1994 <br /> � ,v r <br /> Attention Jeanne Homsey OC Sample Group 4CJ0902 Reported�. Apr 4t <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#: 4CG8903 4CG8903 4CG8903 4CG8903 <br /> Date Prepared- - - <br /> Date Analyzed: 3/31/94 3/31/94 3/31/94 3/31/94 <br /> ' Instrument I.D.#: GCHP-17 GCHP-17 GCHP-17 GCHP-17 <br /> Conc Spiked: 10M9/L 10ug/L long/L 30Ng/L <br /> Matrix Spike <br /> % Recovery- 100 100 100 100 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 94 96 97 97 <br /> Relative% <br /> Difference- 6 2 41 30 30 <br /> } +.. s v hCvC }} r . r ,• • "}rr t C .r <br /> v v r ' r vv , r r Yv r +r •v nv r n r n .� , rn,r, ` ,.4 .v w m r .v ,m, yr vv x r rmmtm-r rC n <br /> LCS Batch#: <br /> Date Prepared, = <br /> Date Analyzed: <br /> Instrument I.D # <br /> LCS <br /> Recovery: - - - <br /> 1 % 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 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 /> �n /J 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 /> Vickie Tague Clark interference,the LCS recovery is to be used to validate the batch <br />' Project Manager 4CJ0901 WAT 43> <br />