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d ISI Th ( T, Work Plan Frontier Transportation f July 23, 2001 I * Signatures of persons involved in the chain-of-possession. When sample custody is transferred to another individual, the samples must be relinquished by the present custodian and received by the new custodian. This will be recorded at the bottom of the Chain-of-Custody Record and Request for Analysis Report where the persons involved will sign, date and note the time of transfer. During field operations, each project geologist will act as the custodian for the samples he or she collects. Samples will not be left unattended unless placed, along with the Chain-of-Custody Record, in a secure container. The Chain-of-Custody Record and Request for Analysis Report is a multi- part form that allows the record to be kept in duplicate. One copy will accompany the sample shipment to the laboratory and one copy will be kept with the field logbook. All documents that accompany shipments will be. enclosed in zip-lock bag and taped to the inside top cover of the shipping container. Chain-of-Custody and Request for Analysis Reports provide official communication to the laboratory by listing the particular analysis required for each sample. This also furnishes further evidence that the Chain-of-Custody is complete. The form will contain the following information: * Cross-reference to the Chain-of-Custody Record; Project name and number; f' * Sample number; * Sample volume; * Preservative as required; 4 * Requested testing program; * Required turnaround time * Possible hazard identification; * Sample disposal requirements; The form will be signed and dated by the receiving laboratory sample management custodian. 7.2.2) Sample Identification Sample labels prevent the misidentification of samples . Following sample collection, labels will be affixed to each sample container. Labels will record the following type of information. * Project name and number; 6 1 `