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• Water removed from the well will be contained in 208-liter(55-gallon)United <br /> Nations approved drums. Labels will be placed on the drums with the contents, <br /> date,well number, and job number recorded on the label. The drums will be stored <br /> at the site pending laboratory analysis of the groundwater. <br /> Sample Retention and Analysis <br /> • Chain-of-custody procedures, including the use of chain-of-custody forms,will be <br /> used to document sample handling and transport from collection to delivery to the <br /> laboratory for analysis. <br /> • The samples will be placed on ice in an insulated chest overnight in the custody of <br /> an IT employee. The samples will be picked up within approximately 48 hours of <br /> collection by a courier supplied by the laboratory, or will be delivered to the <br /> laboratory by IT personnel within approximately 48 hours of collection. The <br /> samples will be transported to the laboratory in a motor vehicle. <br /> • Soil samples will be labeled with the boring number, and the sample collection <br /> depth. For example, "SR120-1-1.3"represents the first boring (1)collected at a <br /> depth of 1.3 meter below the ground surface. <br /> • Groundwater samples will be labeled with the boring number. <br /> • Laboratory quality assurance/quality control procedures are summarized below: <br /> Method Blank Frequency=one per 10 samples <br /> Matrix Spike/Matrix Spike Duplicate=one per 10 samples <br /> Laboratory Control Sample/Laboratory Control Sample Duplicate=one per <br /> 10 samples <br /> SAC/DP-N.9rancjpllProjectsl8318347601wkpin&hspl wp&hsp HSCSR 120 HSA wp.doc A-3 <br /> 4/19/02 <br />