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LASequoia 680 Chesapeake Drive Redwood Otw,CA 94063 (415) 364-9600 FAX(415) 364-9233 <br /> _)l, 404 N.Wiget Lane Walnat C'-eek.CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> rte'. <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921.9600 FAX(916)921-Qioo <br /> . .......:.:.......:.:.: <br /> i .........:...............e...................c... .. <br /> Alton�eosclence Client l rojectli7 ""'N1olJii ##04=343 -- <br /> 30-A Lindbergh Ave. Matrix: Liquid <br /> Livermore, CA 94550 <br /> Attention: Ailsa Le May OC Sample Group: 6071876-886 Reported: Aug 2, 1998> <br /> ;}}}s.a.vii::-:::'..:^'t{:•:-;:+�:::•::.v.:.nv:.ya:.u.:,..:}�.::r•.:r:rr.isv:n:i:{r::::^::..w::::::::::::}..;.}k.i::.v.•.iY.:.}:.:{:.i'..•.n}:-iY{.:.i-:i'e{.ti.}}}:::.:�'•::.:.!�:::i {{r:.;i.:+I.r{r.Y.isisn::r:.:i;win:9::i.iv:nh`v._isx�r:�::v:::::..:xv.:...rv:.r.:.:t:{.:.rr:.:n:-:i.:{r:}:iii::::ut.}...:: i <br /> ...:::::::.::v.::..:v::..v::r::.::.-.-:.5.:...:f}::i-:.:.:i.ri{.:...::.v.::♦-.::vw:::.:..v:.:.•::v+,:v,::..hv:w.:}w.i.::.:.::riJ:.:::..::-ri-:i:.::iJ...- {.�.-_ ..:.....-r..vi- .r ......k ... .... Q'::':": <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes Diesel <br /> Benzene <br /> QC Batch#: GCO73096 GC073096 GCO73096 G0073096 SP073096 <br /> 802002A 802002A 802002A 802002A 8015EXB <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 8015 <br /> Prep. Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 EPA 3510 <br /> Analyst: K.Nill K.Nil] K.Nill K.Nill J. Dinsay <br /> MS/MSD#: 6071885 6071885 6071885 6071885 81-K073096 <br /> Sample Conc.: N.D. N.D. N.D. N.D. N.D. <br /> Prepared Date: 7/30/96 7/30/96 7/30/96 7/30/96 7/30/96 <br /> Analyzed Date: 7/30/96 7/30/96 7/30/96 7/30/96 7/31/96 <br /> Instrument I.D.#: HP-2 HP-2 HP-2 HP-2 HP-3A <br /> Conc. Spiked: 20/rg/L 20ug/L 20pg/L 60pg/L 300ug/L <br /> Result: 23 23 24 70 240 <br /> MS % Recovery: 115 115 120 117 80 <br /> Is Dup. Result: 21 21 22 64 230 <br /> MSD % Recov.: 105 105 110 107 77 <br /> RPD: 9.1 9.1 8.7 9.0 4.3 <br /> RPD Limit: 0-25 0-25 0-25 0-25 0-50 <br /> LCS#: 2LCS073096 2LCS073096 2LCS073096 2LCS073096 LCS073096 <br /> Prepared Date: 7/30/96 7/30/96 7/30/96 7/30/96 7/30/96 <br /> Analyzed Date: 7/30/96 7/30/96 7/30/96 7/30/96 7/31/96 <br /> Instrument I.D.#: HP-2 HP-2 HP-2 HP-2 HP-3A <br /> Conc. Spiked: 20ug/L 20ug/L 20ug/L 60ug/L 3001ig/L <br /> LCS Result: 23 22 23 68 290 <br /> LCS % Recov.: 115' 110 115 113 97 <br /> LCS 70-130 70.130 70-130 70-130 50.150 <br /> Control Limits <br /> Please Note: <br /> The LCS Is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> OSEQUOIA 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 /> l, the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> ( '�" interference,the LCS recoveryis to be used to validate the batch. <br /> JIm ova **MS=Matrix Spike,MSD=M Duplicate,RPD=Relative% Difference <br /> Prod ct Manager <br /> 6071876.AL7 <5> <br />