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• i <br /> QUALITY HSSURAHCE PROGRAM <br /> a Sample Preservation. Receipt, management, and Tracking <br /> LIhen requested, CHEMUEST will provide our clients with the proper <br /> containers for samples. by matrix and method. <br /> Upon receipt, all incoming samples are checked by the Sample Control <br /> Department for irregularities and chain of custody discrepancies . <br /> fill irregularities and discrepancies are noted, and when necessary, <br /> the client is inmediately notified as part of the corrective action <br /> process . <br /> After receipt, samples are logged-in to the CHEMUEST system as per <br /> the Sample Control SOP . The sample Project Manager is responsible <br /> for tracking the samples throughout the laboratory . All samples are <br /> maintained in a secure area by the Sample Control Department. During <br /> all stapes of sample analysis, all sample associated documents are <br /> signed and dated by the analysts performing the work. These items <br /> are also reviewed, signed, and dated by the individual Laboratory <br /> Managers . <br /> a Method Specific Analytical Quality assurance/Quality Control <br /> Each laboratory (ine . GC/MS, SC, Inarganics, etc .) has specific nethod <br /> r y <br /> S[1P•s that detail the preparation of standards, the documentation of <br /> instrument maintenance, the number and type of QC samples, the <br /> calibration of instruments, the specific quality control parameters <br /> and acceptance criteria. and the correctiue action for out of control <br /> situations . <br /> After initially demonstrating that the analytical method is in <br /> control by means of method specific proficiency or validation <br /> testing. the data generated from the analysis of quality control <br /> 1 samples, such as matrix spikes and blanks, is evaluated against the <br /> applicable quality control acceptance criteria and used to uerify <br /> that the method is in control . QA/QC summary reports, whether for <br /> internal or client requested QR/QC, are generated by the Individual <br /> laboratory personRel, who check for compliance with QC acceptance <br /> criteria . Adherence to the QC acceptance criteria is assured by <br /> reviews performed by the indiuidual Laboratory Managers, the Project <br /> Manager, the Quality Assurance Officer, and the Uice president of <br /> Technical Services . <br /> 1. <br /> 2 <br /> 1 <br />