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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(510)988 9673 <br /> Analytical 819 Sinker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> v6.Sv3nv d:rA v3Pu,v+ Gr•{vx�`1.rv.+ tiYSi w r ru+tn �w+}+- v h ~div frr ri vnPv,n <br /> Blaine Tech Services, Inc Client Project ID Chevron 9-1918/960424-A2 n <br /> ¢985 Timothy Drive Matrix Liquid }� <br /> }San Jose, CA 95133 d <br /> "Attention Jim Keller Work Order# 9604192-05-09 RePorted May 15. 199",F6 S <br /> ., 03" r�;-. ,• ;n reN�L , rr., orn � x uh v;,..ai ,. . .tN }M1,.n ,.., r , } rn ., a„ ^a <br /> nv n+x ♦b'r++.�xn xnvir 4x+-+ + 4 n a.vv iv}4~ nr n v yr vn c v. i +n r ry n v ry r+ifr ry r4 t + +4 vn rr r}+v+� + r ry r_ + r? <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Nitrate <br /> i <br /> GC Batch#: IN0507963000ACD <br /> j Analy Method: EPA 3000 <br /> Prep. Method: N/A <br /> i <br /> Analyst: S Lee <br /> MS/MSO#' 96050i30f <br /> Sample Conc : N D <br /> Prepared Date: 5/7/96 <br /> Analyzed Date: 5/7/96 <br /> Instrument 1134; INIC1 <br /> Conc Spiked: 100 mg/L <br /> Result: 97 <br /> MS%Recovery: 97 <br /> Dup Result: 100 <br /> MSD%Recov : 100 <br /> RPD. 30 <br /> RPD Limit ago <br /> r rW.r}++ rnA rnw. • x 4iry r v � v r }r♦r.i + n v r u + .n 5rr r r•r4+ i,f i+ + v + + + � r +W <br /> LCS#: LCS050796 <br /> Prepared Date 5/7/96 <br /> Analyzed Date: 5/7/96 <br /> Instrument 10 #• INIC1 <br /> Conc.Spiked. 10 mg/L <br /> LCS Result 10 <br /> LCS%Recov. 100 <br /> 75-125 <br /> LCS 80-120 <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 UOI A 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 matnx spike does not fail within specified control limits due to matrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> Pe y e <br /> Pr ct Manager "*MS=Matrix Spike,MSD=MS Duplicate,RPA=Relative%Difference 9604192 BLA <5> <br />