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4 QUALITY ASSURANCE <br /> AND QUALITY CONTROL PLAN <br /> — The Quality Assurance and Quality Control (QA/QC)Plan describes the administrative, ' <br /> field, laboratory, and analytical quality control procedures that will be implemented <br /> during this investigation. <br /> 4.1 PROJECT ORGANIZATION <br /> A senior review team will review all project deliverables and monitor the quality and <br /> e quality assurance problems or deficiencies requiring <br /> delivery of the reports. Wher <br /> r special action are discovered, the project manager, project administrator, and senior <br /> l rs review team will identify the appropriate corrective action to be initiated by the project <br /> manager. <br /> 4.2 QUALITY ASSURANCE OBJECTIVES <br /> j FOR MEASUREMENT <br /> The quality assurance objectives of this project are to develop and implement proce- <br /> k.. dures to provide data of known quality. Data quality is assessed by precision, accuracy, <br /> representativeness, completeness; and comparability. Definitions of these parameters <br /> # and the applicable quality eontrol procedures and level of effort are d in the. <br /> following paragraphs. <br /> The applicable quality control '--ocedures, quantitative target limits, and levels of effort <br /> for assessing data quality are ti <br /> ictated by the intended use of the data and the nature of <br /> the analytical methods. For this project, the parameter analyses are designed toward ; <br /> E ' the identification of the presence of UST-gasoline residues or other appropriate anal- <br /> ytes at the site. <br /> Target detection limits for this study are set according to instrument/method limitations <br /> 13' in the laboratory. Appendix C presents the detection limits that will be used by the <br /> CH2M HILL Laboratory. <br /> sr031e04MI004.51 4-1 <br />