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• <br /> SAMPLE PRESERVATION AND HANDLING <br /> The following section specifies sample containers, preservation methods, and sample handling <br /> procedures. <br /> Sample Containers and Preservation <br /> Sample containers vary with each type of analytical parameter. Container types and materials <br /> were selected to be nonreactive with the particular analytical parameter tested. <br /> Sample Handling <br /> Sample containers were labeled immediately following collection. Samples were kept cool with <br /> cold packs until received by the laboratory- Cold packs were replaced each day to maintain <br /> refrigeration. At the time of sampling, each sample was logged on a Chain-of-Custody Record <br /> that accompanied the sample to the laboratory. <br /> Samples were transferred from the site to a state-certified laboratory Y sampling b the g team. <br /> pn <br /> Sample shipment from EMCON Associates (EMCON) to laboratories performing the <br /> selected analyses routinely occurred within 24 hours of sample receipt. The laboratory <br /> manager checked the holding times for requested analyses so that they were not exceeded. <br /> SAMPLE DOCUMENTATION <br /> The following procedures were used during sampling and analysis to provide chain-of-custody <br /> control during sample handling from collection through storage. Sample documentation <br /> included the use of the following: <br /> • Field logbook to document sampling activities in the field <br /> • Labels to identify individual samples <br /> • Chain-of-custody record sheets for documenting possession and transfer of samples <br /> • Laboratory analysis request sheets for documenting analyses to be performed <br /> SA(.\�;:-F'1-_1\252U\25201000.1Ps-94\pas.I A-5 Ray.0,4111/95 <br />