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Remedial Action Pl"a Frontier Transportation I June 17, 2004 j Page it 7.2) Chain-of-Custody The objective of the Chain-of-Custody Program is to allow the tracking of possession and handling of individual samples from the time of field collection through laboratory analysis. Once a sample is collected, it becomes part of the Chain-of-Custody process. A sample is "in custody" when (1) it is in someone's possession; (2) it is within visual proximity of that person; (3) it is in that persons possession, but locked up and -.� sealed (e. g. during transport); and (4) it is in a designated secure sample storage area. 7.2.1) Chain-of-Custody Record and Request for Analysis Report Chain-of-Custody records establish the documentation necessary to trace sample possession from the time of collection to analysis. A serialized Chain-of- Custody and Request for Analysis Report will be completed and will accompany each L batch of samples. The record will contain the following information. * Project name and number; * Request for Analysis control number (for cross reference); * Names of sampling team members; I J * Laboratory destination; J * Carrier/waybill number; * Sample number; * Sample location and description-, * Date and time collected; l * Sample type; I i * Container type; * Special instructions; * Possible sample hazards; * Signatures of persons involved in the chain-of-possession. When sample custody is transferred to another individual, the ' _J 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 j 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.