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DGM Environmental Monitoring QAPP <br /> Section 8 DATA HANDLING AND REDUCTION <br /> In this manual data handling and reduction include the processes of data collection, <br /> organization, and processing to reduce data to usable results that are reported to the <br /> data user. The QA functions of data verification and validation are included in this <br /> process. <br /> 8.1 Laboratory Data Records and Data Processing <br /> All third party or contracting laboratory sample results should be supported with <br /> electronic records maintained on more than one secure server. <br /> 8.2 Dawson Gold Mine Data Review <br /> Once DGM receives the laboratory's report the report's contents undergo DGM's QAO <br /> review and data user review. The QAO performs a review of the analytical lab's sample <br /> result report for data quality acceptability. While reviewing the analytical data packets <br /> the QAO checks to see that the measurement performance criteria and quality control <br /> requirements listed in QAPP Section 10 or the particular laboratory procedure are either <br /> met or addressed. <br /> During sample and analysis data quality review, data validity may require investigation <br /> and follow up. This QAPP document provides two methods to accomplish these <br /> actions: a Data Verification —Assay Correction (DVR-ACF) System described below <br /> and the Corrective Action - Improvement Request (CAIR) System described in Section <br /> 12. Both systems provide a mechanism to investigate perceived quality problems and <br /> respond to them. The DVR-ACF system is applied only to questions of specific sample <br /> data quality. The CAIR system may also be applied to more general sampling and <br /> analytical procedure activities and other unrelated issues. <br /> 8.2.1 Data Verification <br /> Data verification is the confirmation that the sampling and analytical requirements have <br /> been completed and are reported correctly. Data verification answers the questions: Is <br /> the data complete? Is all necessary recorded data present and correctly processed? <br /> Sampling data is verified by the QAO's review and approval of the assembled COC <br /> packet. During COC review the QAO checks for the completion of the required COC <br /> document. He also checks for the presence of all required support data and <br /> documentation such as field notes being present as attachments. The COC packet <br /> must also identify the constituents to be analyzed for and any special treatment <br /> required for each sample listed. <br /> The completeness of analytical data is verified through review of the laboratory's <br /> sample results report and associated analytical data package. During review of the <br /> analytical data packets the QAO verifies that all necessary components of each <br /> Page 10 <br />