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SEQUOIA' ANALYTICAL <br /> 680 Chesapeake Drive • Redwood City, CA 94063 <br /> (415) 364-9600 FAX(415) 364-9233 <br /> �Anx, <br /> FiESNA ri is�a{,,..,...Gw.waV. �v'..`l�` c�..'}.z!nrS.,.:�f'r..•�f< �':vr.S„rv,�..,'a,,..,H.K,,,..v.,d,,s `... �`�.b.,v..��w.,:o..wao 2.,G�o-,,,,,, r:' ,.}.y.�,,.Y,w.�.a`.rffrw,.aSw.w�"r.,o- a <br /> Client Project ID W0475,Weber Paint <br /> #1710 Main Street <br /> Escalon, CA 95320 <br /> ' YAttention Tina Le Page _ QC Sample Group 205-2063 v r,wV.n n Reported May X18, 1992y/ <br /> vi. i }vr Y[Y yh�'` n'vN+�rn nvvr A n:+*`�rr4Smi�/h vY N9ff' Y':!h'.�r iryi }'Ov nrhr vt 4srMA r .rr wn+.Wn��ir�,ry vvfimvtsvry mo}W+W,Grv++�r/ia^�~�A3}�4'.3�}.M"fvnVO�"WflHfiYC k�Svsvf <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene benzene Xylenes <br /> Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Analyst M Nipp M Nipp M Nipp M Nipp <br /> Reporting Units pg/L ug/L ug/L lig/L <br /> Date Analyzed May 14, 1992 May 14, 1992 May 14, 1992 May 14, 1992 <br /> QC Sample# GBLK051492 GBLK051492 GBLK0514s2 GBUM1492 <br /> MS/MSD MS/MSD MS/MSD MS/MSO <br /> Sample Conc: N D N D N D N D <br /> Spike Conc, <br /> Added: 10 10 10 30 <br /> Conc. Matrin <br /> Spike. 93 92 93 28 <br /> Matrix Spike <br /> %Recovery: 93 92 93 93 <br /> Conc. Matrix <br /> Spike Dup : 10 10 10 31 <br /> ' Matrix Spike <br /> Duplicate <br /> % Recovery: 100 100 100 103 <br /> Relative <br /> %Difference- 73 83 73 10 <br /> SEQUOIA ANALYTICAL %Recovery Conc of M S -Conc of Sample x 100 <br /> Spike Conc Added <br /> Relative%Difference Conc of M S -Gone of M S D X 100 <br /> i L e a (,U (Conc of M S + Conc of M S D)/2 <br /> roject Manager 2052053 WAT <2> <br /> i <br />