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QUALITY ASSURANCE <br /> QUALITY CONTROL PLAN <br /> The Subsurface Investigation(SI) Quality Assurance/Quality Control(QA/QC)program is intended <br /> to facilitate the acquisition of accurate and reliable data. Environmental data gathered during the SI <br /> will be collected and analyzed following procedures prescribed in the Quality Control Program. A <br /> Quality Assurance Program has been established to assure that the Quality Control Program is <br /> effective. Both programs are necessary to provide accurate data and documentation for <br /> investigations and laboratory analyses. The following field and laboratory procedures will be <br /> implemented to ensure that QA/QC objectives are met. <br /> 1.0 RECORDING OF FIELD DATA <br /> All information pertinent to the field investigation will be kept in a field log book. Information to <br /> be documented includes at least the following: <br /> ✓ Sample Numbers <br /> ✓ Locations of Sample Collection <br /> ✓ Soil Boring or Well Numbers, as applicable <br /> ✓ Depths at which Samples were Obtained <br /> ✓ Names of Collectors <br /> ✓ Dates and Times of Collection <br /> ✓ Purpose of Sample <br /> ✓ Sample Distribution(e.g., laboratory,archive,etc.) <br /> ✓ Field Observations <br /> ✓ Field Measurements(e.g.,PID readings,pH,conductivity,well log,etc.) <br /> ✓ Other Data Records(e.g.,development log, soil sampling report,well log,etc.) <br /> w:\admin\she11s\qaqc-02.doc <br /> 1 <br />