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Sequoia 690 Chesapeake Drive Redwood Clry,CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N Wlget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988 9673 <br /> 4 Analytical 9l9 Striker Avenue,Suite 8 Sacramento,CA 95834 (916} 921-9600 FAX(916)921 0100 <br /> r7A� <br /> }44 tiknr4 Y » u v + `l~ r rxrr vv w nrrvwwvn rr}4+„yvr.ry.r wr ry '+'+vvir'1n <br /> >`Enwros " Client Project iD Shell 6iSfPacif1'0,Stoct<ton— s <br /> X270 Perkins Ave Matrix Solid <br /> ?Sonoma,-CA 95476 > <br /> �Attention J Gaarder Work Order# 9709C09-01-16 Reported Oct 6, 1997 } <br /> r, r rr r 'ry rvr <br /> r# ,,••rtir.•�,: s,rr r v.}. rr oma, ra.lr r + ,w r.ws.. ..ter., r.. rr .v w.wrr.,.4 . r r r}4 +r wr.r.~h 4 r r. r . r r t r.,» r r ,. h,.~ .., <br /> QUALITY CONTROL DATA REPORT <br /> Analyte. Benzene Toluene Ethyl Xylenes Gas - - <br /> -- - — --- --------- -------- <br /> Benzene— <br /> OC <br /> enzeneOC Batch#: GC092597BTEXEXB GCO92597BTEXEXB GC092597BTEXEXB GCO92597BTEXEX13 GC092597STEXEXB <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 8015M <br /> Prep. Method' EPA 5030 EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst A.Porter A.Porter A.Porter A.Porter A. Porter <br /> MS/MSD #: 970900916 970900916 970900916 9709C0916 970900916 <br /> Sample Cone ' N D N D N D N D - ND <br /> Prepared Date 9/25/97 9/25/97 9/25/97 9/25/97 9/25/97 <br /> Analyzed Date 9/26/97 9/26/97 9/26/97 9/26/97 9/26/97 <br /> Instrument I D.#: GCHP22 GCHP22 GCHP22 GCHP22 GCHP22 <br /> Cone Spiked: 0 20 mg/Kg 0 20 mg/Kg 0 20 mg/Kg 0 60 mg/Kg 12 mg/Kg <br /> Result 016 015 015 044 090 <br /> MS % Recovery. 80 75 75 73 75 <br /> Dup Result: 015 015 015 043 090 0) <br /> MSD % Recov.. 75 75 75 72 75 <br /> RPD 65 00 00 23 00 <br /> RPD Limit 0-25 0-25 0-25 0-25 0-25 <br /> On n •n { 1 ... ..r ..ry...,.v v 4 }v`r 1 r. 1 ,.,. M1 vw w ti 4 r M1 y r r + <br /> LCS # BLK092597 BLK092597 BLK092597 BLK092597 BLK092597 <br /> Prepared Date 9/25/97 9/25/97 9/25/97 9/25/97 9/25/97 <br /> Analyzed Date 9/26/97 9/26/97 9/26/97 9/26/97 9/26/97 <br /> Instrument I.D.#: GCHP22 GCHP22 GCHP22 GCHP22 GCHP22 <br /> Cone Spiked. 0 20 mg/Kg 0 20 mg/Kg 0 20 mg/Kg 0 60 mg/Kg 12 mg/Kg <br /> LCS Result 017 017 016 047 _ 10 <br /> LCS % Recov : it 85 85 80 78 83 <br /> 60-140 60-140 60-140 60-140 60-140 <br /> LCS 70-130 70-130 70-130 70-130 70-130 <br /> Control Limits <br /> Please Note <br /> The LCS is a control sample of known,Interferent free matrix that is analyzed using the same reap <br /> SEOUO ALYTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sa <br /> fortified with known quantities of specific compounds and subjected to the entire analytical procedure <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> III IteIICI CIlr.C7,lllC L%✓,210LVVe1y 4j W LJV Ui OW tV V[t11UQtC the Ld 41 1 <br /> A i regory <br /> Project Manager **MS=Matrix Spike,MSD=MS Duplicate, RPD=Relative%Difference 9709009 EEE t4> <br />