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r Sequoia 680 Chesapeake Dnve Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> frill? Analytical 819 Sinker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> {{.r4nvw1 •ur ivv+ vr. yv�u+su }+Nxr ynr hti <br /> S <br /> vvfi vfi�v vuti�+rn+4w+{-ir vrmrv.G[.. +r Yi S*+tiiw+0A0Rr}i+i4 Fri:+1h{h+r rivr >.nYw"Rr n++'+Nirr"r� r"ti <br /> r rC x 'r ^'1-n+w innrh rJJr r vY vF+vnr r v d+ +a.fi} nr. + ` + it r.+r♦whM'TT i h S'O [„ mNNAamm+Y+rr+ AlS MxL+r}v i <br /> BlalneL0. rTech Services, Inc Client Project ID- Chevron 9-8632+%960820,12 <br /> "985 Timothy Drive Matrroc Liquid Y <br /> San Jose, CA 95133 <br /> ,Attention Jim Keller Work Order# 96OBC67-01 A r r Reported Sep, <br /> 6, 1996 <br /> { }4 ?+ r k +A+ <br /> Jxv..x r..n.+'+A�u vYw fAvv +v�vr v+ v vvv.i.+v++i+rur~v .v+ rvv ti.uv rivnrr+Jx r. S r ♦wyu rvn+mvnu r+ {> vl4hr rnvrmrx+ ur+vrr+1 + + +.0 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: 2,4-Dindro- Pentachloro- Pyrene <br /> toluene phenol <br /> QC Batch#: MS08219W270EXA MS0821968270EXA MS0821VA270EXA <br /> Analy. Method: EPA 8270 EPA 8270 EPA 8270 <br /> Prep Method: EPA 3510 EPA 3510 EPA 3510 <br /> Analyst: E Manuel E Manuel E Manuel <br /> MS/MSD#: 9608B7303 900887303 960887303 <br /> Sample Conc : N D N D N D <br /> Prepared Date: 8/21/96 8/21/96 8/21/96 <br /> Analyzed Date: 8/22/96 8/22/96 8/22/86 <br /> Instrument 1 D #- F4 F4 F4 <br /> Conc Spiked: 200 pg/L 2Wug/L mug/L <br /> Result. 150 170 140 <br /> MS% Recovery: 75 85 70 <br /> Dup. Result: 150 170 140 <br /> MSD %Recov.: 75 85 70 <br /> RPD- 00 00 00 <br /> RPD Limit 0-30 0-30 0-30 <br /> LCS #' BLK082196 BLK082196 BLK082196 <br /> Prepared Date: 8/21/96 8/21/96 8/21/96 <br /> Analyzed Date. 8/22/96 8/22/96 8/22/96 <br /> Instrument I D #: F4 F4 F4 <br /> Conc Spiked: 200pg/L 2Wug/L 200Ng/L <br /> LCS Result: 150 160 140 <br /> LCS % Recov: 75 80 70 <br /> 32-114 17-146 32-125 <br /> LCS 45-100 22-117 50-114 <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 />�SE I A ALYTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> forte ith known quantities of specific compounds and subjected to the entire analytical procedure If <br /> e 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 /> Pe Pe er **MS=Matrix Spike, MSD=MS Duplicate,RPD-Relative%Difference <br /> Project Manager Page 3 of 3 9608067 BLA <4> <br />