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A-5 4 1 4 Chain-of-Custody Record A chain-of-custody record was filled out for and accompanied every sample and every shipment of samples to the analytical laboratory in order to establish the documentation necessary to trace sample possession from the time of collection The record contained the following information • Sample or station number or sample I D • Signature of collector, sampler, or recorder • Date and time of collection • Place of collection • Sample type • Signatures of persons involved in the chain of possession • Inclusive dates of possession The laboratory portion of the form was completed by laboratory personnel and contained the following information • Name of person receiving the sample • Laboratory sample number • Date and time of sample receipt • Analyses requested • Sample condition and temperature 4 1 5 Sample Transfer and_Shipment Samples were always accompanied by a chain-of-custody record When transferring samples, the individuals relinquishing and receiving the samples signed, dated, and noted the time on the chain-of-custody record Samples were packaged properly for shipment and dispatched to the appropriate laboratory for analysis The chain-of-custody record accompanied each shipment The method of shipment, couner name(s), and other pertinent information was entered in the chain-of-custody record 4.2 Laboratory Custody Procedures A designated sample custodian accepted custody of the shipped samples and venfied that the information on the sample label matched that on the chain-of-custody record Information regarding method of delivery and sample conditions was also checked on the chain-of-custody record The custodian then entered the appropriate data into the laboratory sample tracking system The laboratory custodian either used the sample number on the sample label or assigned a unique laboratory number to each sample The custodian then transferred the sample(s) to the proper analyst(s) or stored the sample(s) in the appropnate secure area iLaboratory personnel are responsible for the care and custody of samples from the time they were received until the sample wass exhausted Once at the laboratory, the samples were handled in accordance with U S Environmental Protection Agency SW-846, Test Methods for