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' Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wtget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(5 10)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> r t + v ♦ v `♦ ' '" r v ry.+ } i 4 Y rr 4+{vi \ n v a v n r n Y'+ { <br /> Blaine Tech Services, Inc Client Project ID Chevron 948632 %960820-J2 v <br /> 985 Timothy Drive Matrix Liquid <br /> n San Jose, CA 95133 A <br /> ,Attention Jim Keller Work Order# 9608C67-05 Reported Sep 6, 1996 <br /> . . tv,rte w%nr r.{,Y'v�na a+rry r. .vY cn r+ 4 r ,.r vv ' vA rrr.... +xc n.r r. + ,,.. t .,l.v „v r v .. ,,. . '.s nn nrn•k <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> QC Batch#: GCO82MBTEX03A GCO82896BTEX03A GC082896BTEX03A GC082896BTEX03A <br /> Analy Method: EPA 802D EPA 8020 EPA 8020 EPA 8020 <br /> Prep Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst D Jirsa D J1rsa D Jirsa D Jirsa <br /> MS/MSD#. 9608A7202 960BA7202 9608A7202 964aA7202 <br /> Sample Conc . NO N D N D N D <br /> Prepared Date: 8/28/96 8/28/96 8/28/96 8/28/96 <br /> Analyzed Date: 8/28/96 8/28/96 8/28/96 8/28/96 <br /> Instrument I D #. GCHP3 GCHP3 GCHP3 GCHP3 <br /> Conc Spiked: 10pg/L 10,vg/L 10Ng/L 30pg/L <br /> Result: 10 9 8 98 29 <br /> OMS% Recovery: too 98 98 97 <br /> Dup Result: 10 99 98 29 <br /> MSD % Recov : 100 99 98 97 <br /> RPD- 00 10 00 00 <br /> RPD Limit 0.25 0-25 0.25 0.25 <br /> LCS# BLKOM96 BLK082896 BLK082896 BLK082896 <br /> Prepared Date: 8/28/96 8/28/96 8/28/96 8/28/96 <br /> Analyzed Date: 8/28/96 8/28/96 8/28/96 8/28/96 <br /> Instrument I D #: GCHP3 GCHP3 GCHP3 GCHP3 <br /> Conc Spiked- 10ug/L 10ug/L 10pg/L 30ug/L <br /> LCS Result 96 94 92 27 <br /> LCS % Recov.. 96 94 92 90 <br /> 64.140 60-140 60-140 60.140 <br /> LCS 70-130 7D-130 70-130 70.130 <br /> Control Limits <br /> Please Note <br /> The LCS 1s a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> tE OI ANALYTICAL preparation,and analytical methods employed for the samples The matrix spike Is an aliquot of sample <br /> fortified known quantities of specific compounds and subjected to the entire analytical procedure If <br /> ecovery 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 /> g y Pen <br /> oject Manager **MS-Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 960SC67 BLA <7> <br />