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UO~~ <br />URS Operating Servic=s, Inc. <br />Data \~alidation Report <br />\111. FORM 7 - LAQOIL4TORY CONTROL SAbIPLE ~ <br />The laboratory control sainple(LCS) waspreparedand analyzed with every hven[yor fewersamples <br />of a similar m.urix, or one per ample delivery soup (whichever is more frequent). <br />Yes \ No <br />Cc;nunents: None. <br />AI I results were within control limits. <br />Yes No <br />Comments: All recoveries `.VBIY R'Ith In the QC IIm ItU Uf 80-12~%. <br />I <br />\IV. FORb[ 8 -STANDARD ADDITION RESULTS <br />Results from graphite furnace standard additions were enured on Forn VI II as directed in the SO\V. <br />r <br />Yes_ No NA !C I <br />i <br />i <br />Comments: None. <br />I <br />XV. FORM 9 - 1CP QC <br />i <br />A serial dilution was performed for ICP analysis with every twenty dr fewer samples of a similar <br />matrix, or one per sample delivery stoup, whichever is more frequent. <br />Yes Y No_ <br />Comments: None. <br />The serial dilution was without interference problems as defined by thz method. <br />Yes X No_ <br />Ce nments: All serial dilution %Ds ~~ere less than 10°~b or the original sample results were less <br />than i0' the IDLs. , <br />u~e~~~~~ Inorganic - 12 <br />