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The samples will be packaged for shipment and placed in shipping <br /> containers that are full with ice for delivery or shipment to the <br /> analytical laboratory. A chain of custody record will be filled out for <br /> each shipping container. <br /> 3.3.2 Sample Documentation <br /> Field measurements of pH, temperature, total dissolved solids, and <br /> specific conductance will be made at the time of sample collection (ground <br /> water samples only) , after all containers comprising a sample are filled. <br /> The field measurement devices will be calibrated according to the <br /> manufacturer' s instructions. Equipment calibration and maintenance will <br /> be recorded in the field log book. A clean beaker (or container not <br /> submitted for analysis) will be filled with ground water and the pH, <br /> temperature, total dissolved solids, and specific conductance will be <br /> measured three times. The measurements will be recorded in the field log <br /> book. The equipment will be decontaminated between sampling locations by <br /> rinsing with distilled water. <br /> A sample numbering system has been developed to identify each sample <br /> collected during field operations at the MCTC's facility. The numbering <br /> system provides a tracking procedure to allow for the retrieval of <br /> information on each uniquely numbered sample. The sample identification <br /> number will be used on sample identification labels, field log books, and <br /> chain of custody records. The number will also be used to reference <br /> sample data in reports. <br /> The format for sample numbers shall be as follows: <br /> XX - 000 where: <br /> XX designates type of sample where: <br /> GW - Ground water sample <br /> SC - Subsurface soil sample <br /> LS - Lysimeter pore water sample <br /> IW - Injection water sample <br /> PS - Piezometer sample <br /> 000 designates unique sample number. <br /> Each sample collected shall be assigned a unique sample number. Sample <br /> numbers do not change because different analyses are requested for a given <br /> sample. Each sample from a particular location, collected at a specific <br /> time on a specific date would have the same sample number and various <br /> sample aliquots for each of the sample' s analyses would be submitted to <br /> the laboratory in their respective containers, each bearing the same <br /> unique sample number. <br /> 11654.652 3-5 <br />