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• T 3•� r <br /> Sequoia 380 Chesapeake Drive Redwood City,CA 94063 '415) 364-9600 FAX(415) 364.9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598%.04510) 988.9600 FAX(510)988-9673 <br /> qIW Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921.0100 <br /> ............................... tocfon>::::>:............................................................................... <br /> 5�::: S <br /> `:vr: n:>:«: 055 <br /> h o #9 <br /> GT c a <:::: <br /> (W ) j I <br /> 4211 May Ave. Matrix: Solid <br /> Wichita, KS 67209 <br /> " Attention: Justin Ward QC Sample Group: 5120416-418 Reported: Dec 29, 1995::;: <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> QC Batch#: GC121595 GC121595 GC121595 GC121595 <br /> 8020EXA 8020EXA 8020EXA 8020EXA <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep. Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: N.Beaman N. Beaman N.Beaman N.Beaman <br /> MS/MSD #: 5120419 5120419 5120419 5120419 <br /> Sample Conc.: N.D. N.D. N.D. N.D. <br /> Prepared Date: 12/15/95 12/15/95 12/15/95 12/15/95 <br /> Analyzed Date: 12/15/95 12/15/95 12/15/95 12/15/95 <br /> Instrument I.D.#: HP-2 HP-2 HP-2 IHP-2 <br /> Conc. Spiked: 0.80 mg/kg 0.80 mg/kg 0.80 mg/kg 2.4 mg/kg <br /> Result: 0.74 0.78 0.80 2.4 <br /> MS % Recovery: 92 98 100 100 <br /> Dup. Result: 0.75 0.79 0.81 2.4 <br /> MSD % Recov.: 94 99 101 100 <br /> RPD: 1.3 1.3 1.2 0.0 <br /> RPD Limit: 0-20 0-20 0-20 0-20 <br /> LCS #: 2LCS121595 2LCS121595 2LCS121595 2LCS121595 <br /> Prepared Date: 12/15/95 12/15/95 12/15/95 12/15/95 <br /> Analyzed Date: 12/15/95 12/15/95 12/15/95 12/15/95 <br /> Instrument I.D.#: HP-2 HP-2 HP-2 HP-2 <br /> Conc. Spiked: 20Ng/L 20Ng/L 20Ng/L 60jug/L <br /> LCS Result: 16_ 17 17 54 <br /> LCS % Recov.: 80 85 85 90 <br /> LCS <br /> Control Limits 55-145 47-149 47-155 56-140 <br /> Please Note: <br /> .The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> A a ALYTICAL, #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 /> / '-- 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 /> Ke et L. Wlmer *'MS=Matrix Spike,MSD=MS Duplicate, RPD=Relative%Difference <br /> Pro ct Manager <br /> 5120416.GTW <3> <br /> _cam <br />