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SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive • Redwood City, CA 94063 <br /> (415) 3649600 FAX(415) 364-9233 <br /> ..kr �„ ;,; "M„ ,.rn,,.xr+'`�."''+ +".�' `�''"=' NNS �„�,� ,.++ V.+ArH+ vnJ"x.;-x;>;,,'wnf{���:�,,,-�xr x�rr s:.k..+.;+ .;,�:•- <br /> f•>LG�}`.v .xah ;f,�.}a. "`�.�a:X� ..�..,^' u,:aG,J`c.'C:�'c.r..a+,+.a- :C ,.onh ai' <br /> >RSNA Client Protect ID w0388, Reeves <br /> AEY <br /> 1710 Main Street i <br /> i Escalon, CA 95320 ' <br /> 'Attention Greg Stahl QC Sample Group 204-4326 Reported May 7, 1992 <br /> ^^Mpp {JrJv x\1+,Y +.i. i` k^ r rn nr Mr .L"i S)cr J?Ny nC v. r. o +. +N Fi'�' "w.43 nti h -Fd`"43y44V.Wh <br /> 18 <br /> QUALITY <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Cobatt Copper Molybdenum Nickel alver Thaiiium Vanadium <br /> Method EPA 6010 EPA 6010 EPA 6010 EPA 6010 EPA 6010 EPA 6010 EPA 6010 <br /> Analyst M Mistry M Mistry M Mistry M Mistry M Mistry M Mtstry M Mistry <br /> Reporting Units mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg <br /> Date Analyzed Apr 30, 1992 Apr 30, 1992 Apr 30, 1992 Apr 30, 1992 Apr 30, 1992 Apr 30, 1992 Apr 30, 19@2 <br /> QC Sample# 2D4-4x52 204.4852 204-4852 2044852 2044852 204-4852 2044852 <br /> Sample Conc.: 51 28 N D 12 N D N D 14 <br /> Spike Conc <br /> Added: 50 50 50 50 50 200 50 <br /> Conc. Matrix <br /> Spike: 55 78 49 61 48 190 64 <br /> Matrix Spike <br /> %Recovery: 100 100 98 98 96 95 100 <br /> Conc Matrix <br /> Spike Dup.: 56 79 50 62 49 190 65 <br /> Matrix Spike <br /> Duplicate <br /> %Recovery: 102 102 100 100 98 95 102 <br /> Relative <br /> %Difference. 18 13 20 16 21 00 16 <br /> 10SE QUOTA ANALYTICAL %Recovery Conc of M S -Conc of Sample x 100 <br /> Spike Cone Added <br /> 1� � Relative%Difference Conc of M S -Cone of MSD x 100 <br /> e <br /> ee" T LLLJ���""" (Conc of M S + Conc of M S U) 2 <br /> Manager 2044326 WAT <8> <br />