ARCHIVED REPORTS XR0000150 - Laserfiche WebLink

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o Quality Acceptance Criterlb The CHEMUCST objectiue for precision and accuracy of analytical data is to use either the Cnuironnental Protection Agency yl(CPR)isted ir, criteria for both precision and tocouar��ya��ly�icalecontrf,ctts, or sone of their published mathodoloDy CHCMUCST laboratory generated performance data, to evaluate the 1 gv,lity acceptance lintts of the data. The QC criteria for matrix spikes (MS's), natrzx spike duplicates CKSD's), or blank spikes (OLS's) are method specific and are detailed in the laboratory SOP e limits for includes,lar butaislnotslimitedato,pthelfollowingfor these the general Menas considerations, as appropriate. w c Precision= o The relative percent difference CRPO) criteria, as published by the CPR in the Statement of Uork (SOU) for the e Contract Laboratory Progran (CLP) for organic and fa inorganic analysxs, and those generated from laboratory p mance data, are used to determine the QC acceptance of the MS/MSD pairs . o The RPD criteria for greater then one-half of the Gampounds spiked must be met per analysis . o If the criteria is net met, then S/ SB pair rted ais reanalyzed, and, if necessary, nd reanalyzed . e o Accuracy0 o The percent recovery criteria, as published by the EPA in the SOU for the CLP for organic and inorganic analysis, the October 26, 1904 federal Register, and those generated from laboratory offormance data,HS- MSO, and GLSre used tpercentrecoveriesethe QC C%RCC) acceptance . e o Far CLP analyses, the XRCC cikedrnustia obegnettpertanalyais. han one-half of the compounds sp o if the criteria is not net, the MS/MSO pair in reanalyzed, and, if necessary, reextracted and reanalyzed . o ror EPA GO0 series method analyses, all of the XRCC criteria must be net per analysis. e a if the criteria is not net, the BLS is analyzed . 24 e