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SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive • Redwood City, CA 94063 <br /> (415)364-9600 FAX (415) 364-9233 <br /> .RESNA ,. uH. , , �i ,,r - �,,;��vn"at h �, •: �. � <� :van, ,.�,n�,,,,hA,{ri.:`;k.,�„ '{„�.,:h�.�;}`'�`°��;;,.;.fir`ffu;,;Ar <br /> ��Client Project 10 v 054006 06,yCoca Cola Stockton <br /> 1710 Main Street Matnx Liquid <br /> Escalon, CA 95320 t; <br /> ' <br /> ' Attention Jeanne Homsey w QC Sample Group 31(12701-2 Rep <br /> v ryi u, rorted Nov 5, 1993, <br /> QUALITY CONTROL DATA REPORT <br /> ' ANALYTE Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> Method: EPA 8020 EPA 80TH EPA 8020 EPA 8020 <br /> Analyst: M Nipp M Nepp M Ntpp M Nipp <br /> MS/MSD <br /> Batch#: 3.IF7W1 WF7001 3JF7001 3JF7W1 <br /> Date Prepared- - _ - - <br /> Date Analyzed: 11/3/93 11/3/93 11/3/93 11/3/93 <br /> ' Instrument I.D #- GCHP-3 GCHP-3 GCHP-3 GCHP-3 <br /> Conc. Spiked: 10pg/L long/L 10pg/L 30Ng/L <br /> Matrix Spike <br /> 6 %Recovery- 98 99 98 97 <br /> Matrix Spike <br /> ' Duplicate% <br /> Recovery: 83 82 83 so <br /> Relative% <br /> Difference. 17 19 17 19 <br /> } . ♦{ Sfe vn� {'a r w'„£+y i� +, {i 'r tc�,., �1`}4.t' "�K,... i 'G�" <br /> L �`a ^4{ "„'{M{♦ �Ch`O':L:'�"Y�CIv.}i y "a l {i{` TAv^ � frQ�rp ?�n {xi,y Q s f <br /> „ <br /> ' LCS Batch#: - <br /> ' Date Prepared: = = <br /> Date Analyzed: <br /> Instrument I.D.#: - <br /> ' LCS% <br /> Recovery: _ <br /> ' % ecovery <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 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 <br /> Project Manager 3K12701 WAT a2> <br />