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SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive • Redwood City, CA 94063 <br /> WOW (415) 364-9600 FAX (415) 364-9233 <br /> ham]\4n.'. '. f` }s ryu v4v{wY]Y4Yf u 'tt f/lfi,Avvilru�x vvn vx ru f r v. v♦w,NOvv i}f' �'v fv:O��S r�yv ♦fv.ilii 'v rmlvn mvGwf 4'4}+%^k{Sv?:4"`M*-} ��� <br /> ,'+GJ O C+S r n r+ilYry x4 f afirvsi'r nF vx r r x•CC{+��•l�S, vwSn�v"v .3 3 rrS` v}v++ 'v;-v,Cr r M1 v ,f».a.4f."'rfwh��n f[[xxfaSMr v3.�vr 5,'GST.+}}. l.v}}=W+7 <br /> FiESNA Client Project <br /> ID W0388, Reeves Exxon/Tracy { <br /> ";1710 Main Streetf <br /> Escalon,CA 95324 Reported Mail 7, 1992 <br /> ;Attention Greg Stahl QC Sample Group 204-4326 po k <br /> v,x...3'}n}`,�,. ,�°;2^ivo`�<••�F4?4�:'nYr`,..i�'}4 R$ arnA n?y3 n`a r�-:f5``.x., r .t .., r ^':;,J,�w,,, r..nyv,.s`};.x r r,. ,�.��ifC Yh tNv$h�v r.,.:«''.✓k>i,~°, �'V:a%`^'�"'.�4„'�`N <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE STLC STLC STLC STLC STLC STLC STLC <br /> Barium Be lium Antimony Arsenic Coban Molybdenum Selenium <br /> Method EPA 200 7 EPA 200 7 EPA 200 7 EPA 200 7 EPA 200 7 EPA 200 7 EPA 200 7 <br /> Analyst M Mistry M Wstry M Mistry M Mistry M Mistry M Mistry M Mistry <br /> Reporting Units mg/L mg/L mg/L mg/L mg/L mg/L mg/L <br /> Date Analyzed May 1, 1992 May 1, 1992 May 1, 1992 May 1, 1992 May 1, 1992 May 1, 1992 May 1, 1992 <br /> QC Sample# 204.5091 2045091 204-5091 204-5091 2045091 204.5091 2045091 <br /> Sample Conc.: 16 N D N D N D N D N D ND <br /> 10l Spike Conc. <br /> Added* 10 10 10 10 10 10 10 <br /> Conc. Matrix <br /> Spike- 10 83 88 97 83 87 11 <br /> Matrix Spike <br /> % Recovery: 84 83 88 97 83 87 110 <br /> Conc. Matrix <br /> SpikeDup.: 10 86 92 99 85 90 11 <br /> Matrix Spike <br /> Duplicate <br /> % Recovery: 84 86 92 99 85 90 110 <br /> Relative <br /> %Difference 00 36 44 20 24 34 00 <br /> .SEQUOIA ANALYTICAL %Recovery Conc of M S -Conc of Sample x 100 <br /> Spike Conc Added <br /> (Q <br /> 4Manager <br /> Relative%Difference Conc of M S -Conc of M S D x 100 <br /> ia <br /> (Conc WMS + Conc ofMSD) 2 <br /> P ojec2044M WAT <10> <br />