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Sequoia680 Chesapeake Dnve Redwood City,CA 94063 (415) 364 9600 FAX (415) 364 9233 <br /> 404 N W,get Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921-0100 <br /> tvk'{J p,xv ♦I Or � x uv>>rnv ?!r hr vv�y w nlr W"�rr ♦.xs`S .J nr{ vnz i s r i `nyV t[{i n? v.Jix~n' v . rJ rr irivr.. ' �4.. . ♦R <br /> ;Blaine Tech Services, IncClient Project IDr rrvChevron 9-1918/960424-A2 <br /> }985 Timothy Drive Matrix Liquid <br /> San Jose,CA 95133 }v <br /> Attention Jim Keller Work Order# 9604192-04-05,08 mm Reported May 15, 1996}; <br /> r ,r, <br /> .{.e%t•kr„�,.,.nir`." v.r,n x .,xer snY'v nr<rt ,.,.,. v fi r,v x . Y ,r. ,..w x r'x} }r ,-rw. x,r a ,,,. .x r . <br /> QUALITY CONTROL DATA REPORT <br /> Anallyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> OC Batch#: GCO50396STEX21A GC050396BTEX2IA GCO50396BTEX21A GC050396BTEX21A <br /> Anally. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Pree Method EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: J Woo J Woo J Woo J Woo <br /> MS/MSD#: 96041-12701 9604H2701 96041-12701 96041-12701 <br /> Sample Conc N D N D N D N D <br /> Prepared Date 5/3/96 5/3/96 5/3/96 5/3/96 <br /> Analyzed Date: 5/3/96 5/3/96 5/3/96 5/3/96 <br /> Instrument I D#: GCHP21 GCHP21 GCHP21 GCHP21 <br /> Conc.Spiked' 10,ug/L 10pg/L 10p9/L 30pg/L <br /> Result: 80 91 88 27 <br /> MS%Recovery 80 91 88 90 <br /> Dup. Result: 80 90 84 25 <br /> MSD%Recov: 80 90 84 83 <br /> RPD. 00 11 47 77 <br /> RPD Limit- 0-25 0.25 0.25 0-25 <br /> n ry r x }..,w tttn r xry r W v + 4 ` ry ` r yr wk'i 3 ryA r r♦. r+. rr v x v , ` ryxr t rr <br /> LCS#- 13LK050396 BLK050396 BLK050396 BLK05W96 <br /> Prepared Date. 5/3/96 5/3/96 5/3/96 5/3/96 <br /> Analyzed Date: 5/3/96 5/3/96 5/3/96 5/3/96 <br /> Instrument I D #: GCHP21 GCHP21 GCHP21 GCHP21 <br /> Conc.Spiked 10 pg/L 10 pg/L 10 pg/L 30 pg/L <br /> LCS Result: 85 10 10 30 <br /> LCS %Recov.: 85 100 1(* 100 <br /> 60-140 60-140 60-140 60-140 <br /> LCS 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 /> es I ANALYTICAL 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 R <br /> the recovery of analytes from the matrix 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 /> nner <br /> Prole anager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9604192 BLA <8> <br />