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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (4 15) 364.9600 FAX(415)364-9233 <br /> 404 N.Wtget Lane Walnut Geek, CA 94598 (510) 988-9600 FAX(510)988-%73 <br /> ,7 Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 911.9600 FAX (9 16)92 1-0100 <br /> �� } � w -- r aux 'r - _ _._ --- v : : ,:: : ... .: .`�:::".^.:.i:w�.'.-.:r•.. <br /> .a:. .. .......... ..- ...}v.:. :. .. .-. .'-. <br /> Tl_L tient Project ID. Chevron <br /> 4211 May Ave. Matrix: Solid <br /> Wichita, KS 67209 '# <br /> Attention: Justin Ward QC Sample Group: 5120405-411 Reported:R rted: Dec 18, 1995£; <br /> r. <br /> ::. ...-.-. ...... ... .... .. :.:n•.a:. v.v.. .r::..::.:,n:.,:..:.,.v:::;•:.:v..l:r{::-::.v:✓.:�':l::+:.v1'2. '":.'..�:i} ... i'�::. S...r : ::, ?'4,. w a-,24 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> OC Batch#: GC121495 GC121495 GC121495 GC121495 <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 /> M S/MSD #: 5120408 5120408 5120408 5120408 <br /> Sample Conc.: N.D. N.Q. N.D. N.D. <br /> Prepared Date: 12/14/95 12/14/95 12/14/95 12/14/95 <br /> Analyzed Date: 12/14/95 12/14/95 12/14/95 12/14/95 <br /> Instrument I.D.#: HP-4 HP-4 HP-4 HP-4 <br /> Cone. Spiked: 0.40 mg/kg 0.40 mg/kg 0.40 mg/kg 1.2 mg/kg <br /> Result: 0.39 0.42 0.44 1.3 <br /> MS % Recovery: 98 105 110 108 <br /> Dup. Result: 0,39 0.41 0.43 1.3 <br /> MSD % Recov.: 98 93 108 108 <br /> RPD: 0.0 2.4 2.3 0.0 <br /> RPD Limit: 0.20 0-20 0-20 0-20 <br /> ..::.v.:..uvw•:.n::•;s.:.v:.v:.m:•.a-::.xv.v.:..:w::.a..:.:..v:.un•.s:.:i:...,rnv.v.:•:::.tiv.vvw.:.w.:,..}}y::.y:w x:. -h <br /> nw.woLNY ..ni....v ♦.x...:,} .vS....... :S:.rn xn.4. ..:.:.Qhv.S`.e..v.niaKn m*hJOw3:v:... rr..w4}.,n..vwx.iv.-J...i.nr-Y.vr+n.ix....v. n. ...v.w..xrnvwrnh uu.: .r.ti...v:. <br /> LCS #: 2LCS121495 2LCS121495 2LCS121495 2LCS121495 <br /> Prepared Date: 12/14/95 12/14/95 12/14/95 12/14/95 <br /> Analyzed Date: 12/14/95 12/14/95 12/14/95 12/14/95 <br /> Instrument I.D.#: HP-4 HP-4 HP-4 HP-4 <br /> Cone. Spiked: 20Ng/L 20ug/L 20ug/L 60ug/L <br /> LCS Result: 20 21 21 66 <br /> LCS % Recov.: 100 105 105 110 <br /> LCS <br /> Control Limits 55 145 47-149 47.155 56140 <br /> Please Note; <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> S OLA AL71CAL, #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. 11 <br /> f the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> t <br /> inlelfarence,the LCS recovery is to be used to validate the batch. <br /> Ken mer "M -Matrix Spike, MSD=MDuplicate, RPD=Relative 9e Ditterence <br /> Proje Manager <br /> 5120405.GTW <3> <br />