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Sequoia q 6$0 Chesapeake Drive Redwood City,CA 94063 (115) 964.9600 FAX(413) 364.9233 <br /> Analytical CD4 N.WiBet Lanc Wat Creek,CA 94598 (510) 988.9600 FAX(510) 988.9671 <br /> 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921.9600 FAX(916)921.01 DO <br /> k: ,tv \\\\\\;4' %1%mow :a/!/L{OFe 'L?1/nGu'ii%////Gi"lv!•/,:7 :\\�\\�\*' k�* .M�ti�\W, W,e. .'�`\�'C r`�\\\\\\\\\\ir///1✓Y//J//!/i� <br /> `Afton�eoscience t..Kject ll�: �Ulob104-343 <br /> 01 6 <br /> y <br /> 30-A Lindbergh Ave. Matrix: Solid <br /> Livermore,CA 94550 <br /> Ailsa LeMay QC Sample Group: 5051785-88ttention: <br /> Reported: Jun 6, 1995`=' <br /> 1k. <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Benzene Toluene Ethyl Xylenes <br /> ' Benzene <br /> Method: EPA 8020 EPA 8020 EPA 8020 EPA 8024 <br /> Analyst: J. Fontecha J.Fontecha J.Fontecha J.Foritecha <br /> MS/MSD <br /> Batch#: 5051636 5051636 50516W 5051636 <br /> ' Date Prepared: 5/27/95 5/27/95 5/27/95 5/27/95 <br /> Date Analyzed: 5/27/95 5/27/95 5/27/95 5/27/95 <br /> Instrument I.D.#: HP-2 HP-2 HP-2 HP-2 <br /> ' Conc. Spiked: 0.40 mg/kg 0.40 mg/kg 0.40 mg/kg 1.2 mg/kg <br /> Matrix Spike <br /> % Recovery: 93 93 100 gg <br /> Matrix Spike <br /> Duplicate% <br /> ' Recovery: 93 93 98 98 <br /> Relative% <br /> ' Difference: 0.0 0.0 2.0 0.0 <br /> .. :.... .;fivxiwv:.t.::.:.;..;•:..i:.::,,,:.xxr•:r,•..,v,. w v .. .. <br /> ....................................v.....: ...r......................::::::::.v:::::.::..:.............r:.:;::::::.:.:v::::x:,v:::.:;...,:v:r.v._:.::..�:r.•.�.�:. ..: ..:.v.-.:.....:.iv:.....�.... .::.!••.:..:::S.CY:Y..??:.::.C:.:.y..}:uv?nNi':n:,y x't ryi:+F:;r. <br /> txvrvnw......:•. •:.r!fv;:.v.vrr:x:nw.�::::...........: r.v.-::::::::::..: �......:...... .^.:,v:. <br /> ..................... w::•..x.:.v..:.-::,;c;;r::.::o:::;;:�i:�.oi. :.:::::.::::,...,...,..:,r:.+n::>...ay....,.,..,it::�.r:+.v:::c�5::i;..x.:>cc.::.:..v:.a;:d:;...,S:G. "'':o-ivz<�.`s� �ic;:2?r:,�s:Y3r-' <br /> ' LCS Batch#: 1 LCS052795 1 LCS052795 1 LCS052795 YM1 <br /> S05 95 1LCS052795 <br /> ' Date Prepared: 5/27/95 5/27/95 5/27/95 5/27/95 <br /> Date Analyzed: 5/27/95 5/27/95 5/27/95 5/27/95 <br /> Instrument I.D.#: HP-2 HP-2 HP-2 HP-2 <br /> ' LCS% <br /> Recovery: 104 105 114 112 <br /> ecovery <br /> Control Llrnits: 55-145 47-149 47-155 56-140 <br /> Please Note: <br /> The LCS Is a control sample of known,Interferent Tree matrix 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, It <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> Interference,the LCS raeovery is to be used to validate the batch. <br /> Kevin Van Slamhrook <br />' Project Manager <br /> 6051785.ALT <4a <br />