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9 4 <br /> IN- IM <br /> 4 <br /> Control limits for accuracy (percent recovery) are based on the average, <br /> historical percent recovery +/-3 standard deviation units- Control limits <br /> for precision (relative percent difference)histr range <br /> fromrelaove idpercent <br /> entical <br /> duplicate DCS results) to t .e average, <br /> cases <br /> here is n <br /> difference + 3 standard deviation unita- sorylimits eare tset, withothe <br /> EPA enough historical data, <br /> uality Assurance department. <br /> approval of the Q <br /> IV Anal sis Results <br /> Test methods may include minor modifications of publishedmits are Methods <br /> such <br /> as reporting limits or parameter lists. ".eporting <br /> ed to <br /> reflect dilution of the sample, when appropriate. Solid and waste samples <br /> are reported on an "as received" basis; i.e., no correction is made for <br /> moisture content, unless the method requires or the client requests that <br /> such correction be made. <br /> Results are on the attached data sheets. <br /> 4 <br />