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Denver <br />Statement of Qualifications <br />Data Management <br />Core Laboratories utilizes a LIMS (Laboratory Information Management System) <br />database system which processes all sample information including field data, <br />analytical results, quality control information, historical data, QC acceptance limits, <br />and accounting information. The LIMS system can be used to conform to special <br />client needs such as direct data transfer and data dump to floppy disk. <br />Quality Control Samples <br />For each analytical batch of samples, the following quality control samples are <br />analyzed at a minimum: replicates (precision), spikes (accuracy), and method blank <br />verifications. Additional QC samples are analyzed according to analytical method <br />specifications or regulatory requirements. Quality control results are evaluated to <br />determine the acceptability of the associated sample results and then reported with <br />the sample data. The LIMS system assists the analyst in iriterpreting this information <br />by flagging "outlier" data. If data are unacceptable, data production is halted <br />immediately and appropriate corrective action is taken with the guidance of the <br />laboratory supervisor or QC coordinator. <br />ES~uioment <br />Documented verification of proper operation and calibration of all data-generating <br />equipment is available for any time period during which samples are analyzed. <br />Calibration and maintenance protocols are maintained in record books and are <br />accessible at all times. <br />AQ Audits <br />The QA Department is responsible for performance and system audits to ensure that <br />data quality requirements are met. System audits are qualitative evaluations of <br />laboratory quality control measurements that determine if measurement systems are <br />being used appropriately. Performance audits are quantitative evaluations of the <br />QA/QC program, such as performance evaluation sample analyses or round robin <br />participation. QA audits are used to identify and document problems. Each site is <br />responsible for correcting the problem and sending written documentation <br />confirming corrections to the Corporate QA Director. <br />~~aaei <br />~ ' <br />CORE LABORATORIES <br />3 <br />