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n � � <br /> FUGRO WEST, INC. <br /> STANDARD OPERATING PROCEDURES <br /> RE: SAMPLE IDENTIFICATION AND CHAIN OF-CUSTODY PROCEDURES <br /> SOP-4 <br /> Sample identification and chain of-custody procedures ensure sample mtegnty, and document sample <br /> possession from the time of collection to its ultimate dtTosal. Each sample container submitted for <br /> analysis is labeled to identify the job number, date, time of sample collection, a sample number unique <br /> to the sample, any name(s) of on-site personnel and any other pertinent field observations also recorded <br /> on the field excavation or boring log <br /> Chain-of-custody forms are used to record possession of the sample from time of collection to its <br /> arrival at the laboratory During shipment,the person with custody of the samples will relinquish them <br /> to the next person by signing the chain-of-custody form(s) and noting the date and tame The sample- <br /> control officer at the laboratory will verify sample integrity, correct preservation, confirm collection in <br /> the proper container(s), and ensure adequate volume for analysis <br /> If these conditions are met, the samples will be assigned unique laboratory log numbers for <br /> identification throughout analysis and reporting The log numbers will be recorded on the chain-of- <br /> custody <br /> hainof- <br /> custody forms and in the legally-required log book maintained in the laboratory The sample <br /> description, date received, chent's name,and any other relevant information will also be recorded <br /> Fugro west.Inc <br /> SOP-4/0dober 1994 <br />