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} AEGIS ENVIRONMENTAL <br /> 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 integrity, and <br /> document sample possession from the time of collection to its ultimate disposal. Each <br /> sample container submitted for analysis is labeled to identify the job number, date, time <br /> of sample collection, a sample number unique to the sample, any in-field measurements <br /> s made,sampling methodology, name(s) of on site personnel and any other pertinent field <br /> !,3 observations also recorded on the field excavation or boring log. <br /> ► Chain-of-custody forms are used to record possession of the sample from time of <br /> -i collection to its arrival at the laboratory. During shipment, the person with custody of the ! <br /> samples will relinquish them to the next person by signing the chain-of-custody form(s) <br /> and noting the date and time. The sample-control officer at the laboratory will verify <br /> sample integrity, correct preservation, confirm collection in the proper container(s) and <br /> ensure adequate volume for analysis. <br /> H.s If these conditions are met, the samples will be assigned unique laboratory log numbers <br /> for identification throughout analysis and reporting. The log numbers will be recorded on I <br /> the chain-of-custody forms and in the legally-required log book maintained in the <br /> laboratory. The sample description, date received, client's name and any other relevant <br /> information will also be recorded. <br /> F.. <br /> i , <br /> ATTACHMENT(Spp.d/June 1950 <br /> �. _ - - <br />