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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(5 10) 988 9673 <br /> WNW Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> {,fVr `O}}J fy.v hwV } .xtr v v}n + } y � r.rV v s r v}.M1 v J hr r rx • v . x ~ , rry '}rr vvr rvV.44^^,n• v,•{+X'+n+ic✓v r'+'»`v'[r <br /> ,Blaine Tech Services, Inc Client Project ID Chevron9-1918/960430-L1 $E <br /> '985 Timothy Drive Matrix Liquid <br /> Zv <br /> San Jose, CA 95133 rs, <br /> }Attention Jim Keller Work Order# 9604K48-04 Reported May 10, 19964 <br /> nv ar y. <br /> x Yr wrJf+v 4 " r rvr <br /> QUALITY CONTROL DATA REPORT <br /> Analyte' Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> GC Batch# GC050696BTEX17A GC050696BTEX17A GC050696BTEX17A GC050696BTEX17A <br /> Analy Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep Method EPA 5030 EPA 50W EPA 5030 EPA 5030 <br /> Analyst, J woo J woo J Woo J woo <br /> MS/MSD# 9604H5101 9604H5101 96041-15101 9604H5101 <br /> Sample Cone N D N D N D N D <br /> Prepared Date 5/6/96 5/6/96 5/6/96 5/6/96 <br /> Analyzed Date. 5/6/96 5/6/96 5/6/96 5/6/96 <br /> Instrument I D# GCHP17 GCHP17 GCHP17 GCHP17 <br /> Cone Spiked' 10ug/L 10ug/L 10ug/L 30ug/L <br /> Result, 11 10 10 30 <br /> MS% Recovery 110 100 100 100 <br /> Dup. Result 10 10 10 30 <br /> MSD%Recov ,, 100 100 100 100 <br /> RPD 95 00 00 00 <br /> RPD Limit 0.25 0-25 0-25 0-25 <br /> v hl} rvYw+tti 4 3.v `}` Yf-, '" r v vvvvwvK'«+�~ ~ +xx� v +nv+.♦ }n n r`+i• v • r.+ rv}ry vn�v inxvvv%Jvvv wrwwr vr}r r vrvn if tir <br /> LCS# BLK050696 BLK050696 BLK0506% BLK050696 <br /> Prepared Date 5/6/96 5/6/96 5/6/96 5/6/96 <br /> Analyzed Date* 5/6/96 5/6/96 5/6/96 5/6/96 <br /> instrument LD# GCHP17 GCHP17 GCHP17 GCHP17 <br /> Cone Spiked 10ug/L 10ug/L 10ug/L 30ug/L <br /> LCS Result 10 10 10 30 <br /> LCS %Recov.: 100 100 100 100 <br /> MS/M 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 /> Vgn <br /> ALYTICAL 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 recovery is to be used to validate the batch <br /> ger **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 96041<48 BILA <6> <br />