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s s <br /> GEC STANDARD OPERATING PROCEDURES <br /> SAMPLE IDENTIFICATION AND CHAIN-OF-CUSTODY PROCEDURES <br /> Sample identification procedures ensure proper designation and labeling of sampling upon their <br /> collection. Each sample container submitted for analysis is labeled to identify the project job <br /> number, date and time of sample collection, and an identification number unique to the sample. <br /> Any in-field measurements, sampling methodology, or other pertinent sampling observations may <br /> be recorded on field sheets, boring log, or field notes. <br /> Chain-of-custody (COC) procedures document sample possession from the time of collection to <br /> its arrival at the laboratory. Before sample shipment, COC forms are ledgeably completed and <br /> signed by the sampler. COC forms are used to record date, time, possession, quantity, and type(s) <br /> of samples along with the requested analysis. During shipment, the person with custody of the <br /> samples will relinquish them tot he next person by signing the COC form(s) and noting the date <br /> and time. <br /> At the laboratory, the sample-control officer will verify sample integrity, correct preservation, <br /> collection in the proper containers, and ensure adequate volume has been submitted for analysis. <br /> The samples will be assigned unique laboratory log numbers for identification throughout analysis <br /> and reporting. The log numbers will be recorded on the COC forms and the legally-required log <br /> book maintained in the laboratory. The sample description, date received, client's name, and any <br /> other relevant information will also be recorded. <br /> Y%glyQ <br /> APR 16 1998 <br /> ENVIRONMENTAL HEALTH <br /> PERMIT/SERVICES <br />