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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(51o)9ss-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> }.,vjv�{y,rn,.wC4S n•rJ lr� <br /> F- <br /> vryi 1 N,ai_�'v rk{,r t'vrMin rs,n}v,v"},HNu.vyr l r , 'ry��vr'ri OvJ��^^}n rrra rfi{C^�ry,v rvv{rh v^'J iYrh%r Jflrr 'rr rih J.n}r..t{ r ti"ti f�{ <br /> B1alne Tech$ennces, Inc n W r614n'trPro�ect ID r+�r$�ieil Stockton J 970822-J3h <br /> 1680 Rogers Ave Matra Liquid s <br /> San Jose, CA 95112y <br /> {Attention Fran Thie Work Order# 9708D48 -01, 04-05 Reported Sep 8, 1997•, <br /> ';�Win" ,r r'h''•'��'h"nv 'J:r�hr"`AA{"}" :� <br /> h4}J-0i hn vnvYx^r v^'Lv rvrwM1nw.w.rysv rxvvnnxx.w r .mr v{j' .,y apv err n, ry l.4.w n m +nvr r 4wnvn rh9 yr xnrx r sir .{n��4 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Benzene Toluene Ethyl Xylenes Gas <br /> Benzene <br /> QC Batch#: GC082897STEX17A GC082B97BTEX17A GC082897BTEX17A GC082897BTEX17A GC082897BTEX17A <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.Miraftab A.Miraftab A.Miraftab A.Miraftab A.Miraftab <br /> MS/MSD# 97OBC7104 970807104 9708C7104 9708C7104 970807104 <br /> Sample Cone - N D N D N D N D N D <br /> Prepared Date- 8/28/97 8/28/97 8/28/97 8/28/97 8/28/97 <br /> Analyzed Date 8/28/97 8/28/97 8/28/97 8/28/97 6/28/97 <br /> Instrument I D # GCHP17 GCHP17 GCHP17 GCHP17 GCHP17 <br /> Cone.Spiked: 10pg/L 10pg/L 10pg/L 30pg/L 60pg/L <br /> Result 88 84 86 25 60 <br /> MS % Recovery. 88 84 86 83 100 <br /> Dup. Result. 76 73 75 22 51 • <br /> MSD %Recov.. 76 73 75 73 85 <br /> RPD. 15 14 14 13 16 <br /> RPD Limit. 0-25 0-25 0-25 0-25 0-25 <br /> 7iaivn v x v . ,,{v.. ♦ r r , `+� v S v Y r s <br /> ' , ,x tiM1 v ,n, 'r YS.. r rvnv, •n rr rxvvr `~S,. vv ,hh ns S 4 tr, v v x t wy 1 v <br /> LCS#: BLK082W7 BLK082897 BLK082897 BLK082897 BLK082897 <br /> Prepared Date: 8/28/97 8/28/97 8/28/97 8/28/97 8/28/97 <br /> Analyzed Date 8/28/97 8/28/97 8/28/97 8/29/97 8/28/97 <br /> Instrument 1.13 #- GCHP17 GCHP17 GCHP17 GCHP17 GCHP17 <br /> Cone Spiced: 10pg/L 10pg/L 10pg/L 30pg/L 60pg/L <br /> LCS Result: 8 5 8 7 8 3 25 57 <br /> LCS %Recov 85 87 83 83 95 <br /> E <br /> I <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 reagents, <br /> S50S O JAALYTICAL preparation,and analytical methods employed for the samples The matrix spike Is an aliquot of sampl <br /> fortified with known quantities of specific compounds and subjected to the entire analytical procedure <br /> the recovery of analytes from the matnx spike does not fall within specified control limits due to matrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> egg nner <br /> ct Manager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9708048 BLA <1> <br />