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• Page 10 <br /> 3.6 QA/QC Samples <br /> Appropriate QA/QC samples will be prepared in the field and laboratory. Field QA/QC samples <br /> will include field duplicate, equipment rinseate, and split samples. Laboratory QA/QC samples <br /> include laboratory control sample, preparatory blank, matrix spike, and either a matrix spike <br /> duplicate or a sample duplicate. Definitions for the QA/QC samples are presented above in <br /> Section 2.1. Table 1 summarizes the field QC samples and collection frequencies recommended <br /> for procedures outlined in this SAP. Table 2 presents a description of the field QC samples and <br /> typical collection frequencies and Table 3 provides a summary of the laboratory QC checks and <br /> limits. <br /> 3.7 Sample Handling and Shipping <br /> Chain-of-custody forms will be filled out for all samples sent to the laboratory. Shipping will be <br /> consistent with current Department of Transportation (DOT) and other applicable regulations. A <br /> detailed description of sample handling and shipping procedures.is presented in Appendix A. <br /> • Each sample will be affixed with a label identifying the sample number, date and time the sample <br /> was collected, the sampler's initials, and the site name. Duplicate and split samples will not be <br /> identified as such. <br /> 3.8 Sample Custody <br /> An established program of sample chain-of-custody procedures, as summarized in Appendix D, <br /> will be followed during field sample collection and handling activities to account for each natural <br /> sample and QA/QC sample. Preprinted labels with spaces provided will be used to maintain the <br /> highest degree of control in sample handling and will ensure that all necessary information is <br /> retained with the sample chain-of-custody records. <br /> 3.9 Laboratory Analytical and Calibration Procedures <br /> Samples will be analyzed in a laboratory in compliance with EPA's CLP standards. The <br /> laboratory will also perform calibration procedures for equipment utilized during analysis. <br /> CO2077 <br /> PRIVILEGED AND CONFIDENTIAL <br /> Environmental <br /> C:1PROlECTSW102-00IUt1176102.001[6/20/96] - -� -�- . _ <br />