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• <br /> SECTION 6.0 <br /> LABORATORY QUALITY ASSURANCE PLAN <br /> This section describes the procedures for completing successful laboratory analyses of <br /> the samples that are collected on Site. The selected laboratory will be a California <br /> Certified Laboratory. <br /> 6.1 Program Quality Assurance/Quality Control Procedures <br /> Field duplicates and laboratory duplicates will be completed as a quality <br /> assurance/quality control measures for the monitoring program. <br /> Duplicates <br /> Matrix spike and field duplicates will be completed by the laboratory and <br /> collected in the field. Field duplicates will be completed at a potential 10% <br /> frequency of the total sample count. An acceptable RPD is 20 percent. <br /> 6.2 Laboratory Quality Control Procedures <br /> The quality assurance program for the analytical laboratory is contained <br /> in a Quality Assurance Program Plan(QAPP)for the laboratories. The <br /> QAPP describes mechanisms the laboratory employs to ensure that all <br /> data reported meets or exceeds all applicable U.S. EPA and State <br /> requirements. It describes the laboratory's experience,its organizational <br /> structure, and procedures in place to ensure quality of the analytical data. <br /> The QAPP outlines the sampling, analysis, and reporting procedures used <br /> by the laboratory. The laboratory is responsible for the implementation of <br /> and adherence to the quality assurance and quality control requirements <br /> outlined in the QAPP. <br /> Data Quality Reviews (DQR), or equivalent, are requests submitted to the <br /> laboratory to formally review results that differ from historical results, or <br /> that exceed certain permit requirements or quality control criteria. The <br /> California Concentrates Monitoring Well Work Plan Issued: June 8,2001 <br /> JHC Project No.493-01 10 Revision 1 <br />