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<br /> _a
<br /> Control liafits for accuracy (percent recovery)
<br /> are based on the average,
<br /> historical percent recovery }/-3 standard deviation units. Control limits
<br /> for precision (relative percent difference)
<br /> rieal from
<br /> rela0 v(identical
<br /> duplicate DCS results) to the average,
<br /> rcent
<br /> difference } 3 standard deviation units. In cases where there is not
<br /> enough ioal data, EPsurancedepartment
<br /> limits ry limits are set, with the
<br /> approval oftheQuality As
<br /> IV Analysis Reslalts
<br /> lest methods may include minor modifications of published EPA Methods such
<br /> as reporting limits or parameter lists. Reporting limits are adjusted to
<br /> reflexa dilution of the sample, when appropriate. Solid and waste samples
<br /> is made for
<br /> are reported on an "as receiv ethodsrequires,orotherclientnrequests that
<br /> moisture content, uless tho
<br /> such correction be made.
<br /> Results are on the attached data sheets.
<br />
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