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• Project No 58100-06-11A <br /> March 15, 1995 <br /> Page 6 <br /> Quality assurance/quality control (QA/ C) will be performed for each method of analysis with <br /> specificity for each analyte listed in the test method's QA/QC QA/QC will include the following <br /> Q One method blank for every ten samples, batch of samples or type of matrix, whichever <br /> is more frequent <br /> o One sample analyzed in duplicate for every ten samples, batch of samples or type of <br /> matrix, whichever is more frequent <br /> o One spiked sample for every ten samples, batch of samples or type of matrix, whichever <br /> if more frequent, with spike made at ten times the detection limit or at the analyte level <br /> d One travel blank for every batch of groundwater samples <br />