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■ ' Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 3900$ares Avenue Suite L Concord CA 94520 (510) 686 9600 FAX(510) 686 9689 <br /> Analytical <br /> 819 Stnker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916) 921 0100 <br /> fRESNA {+ wClient Project ID 054006 02,Coca Cola Stockton <br /> ;1710 Main Street Matrix Liquid <br /> Escalon, CA 95320 J r Y t F r v <br /> Attention Jeanne Homsey CC Sample Group 4DE1401-2 Reported Apr 28, 1994 <br /> ti` i.Q 'l'Y Y,Y ns. n r �~ . r .} ry • ♦s.n r rn v . . } ,. >ryGiF w }.,{ { r v.rruvry rr vr•ry}i�ri iSr+�nvi�H J+xt JC••• <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#: 4084209 4DB42M 4084209 4DB42M <br /> Date Prepared: <br /> Date Analyzed. 4/26/94 4/26/94 4/26/94 4/26/94 <br /> Instrument I D.#: GCHP-17 GCHP-17 GCHP-17 GCHP-17 <br /> Conc.Spiked- 10/ig/L 10pig/L 10,ug/L 30pg/L <br /> Matrix Spike <br /> %Recovery: 110 110 110 110 <br /> Matrix Spike <br /> ' Duplicate% <br /> Recovery: 110 110 110 107 <br /> Relative% <br /> ' Difference: 0 0 00 00 28 <br /> } �y}, v niry W r tr r Yt.�to CJt•t r x�}V[ Y 4~r'" �� t �r � fit f � • ♦x x4r♦ t ..r� "� <br /> LCS Batch#: - - - - <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 matrix that is analyzed using the same reagents, <br /> EQUOIA 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 /> the recovery of analytes from the matrix spike floes 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 4DE1401 WAT <2> <br />