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Section No. 5.0 <br /> Revision Mo. 6 <br /> Date 6/1/88 <br /> Page 11 <br /> 5.0 SAMPLE CUSTODY <br /> The sample collected from a facility or from the environment is physical <br /> t <br /> evidence that may ultimately be used as evidence in EPA or other legal <br /> enforcement proceedings. To satisfy enforcement use of the data, chain-of- <br /> custody procedures must be followed. <br /> To coordinate sample custody, sample analysis data reduction and reporting, <br /> and to be able to meet the time constraint of each project, prior notification <br /> should be given to the laboratory by field personnel before any sampling <br /> episode begins. These goals can be met if sufficient time is allotted for <br /> sample scheduling and analysis by providing the laboratory with the following <br /> information: <br /> Y <br /> 1. The anticipated number of samples, the sample matrix to be <br /> analyzed, and the analysis requested. <br /> 2. The number and type of sampling containers required to complete the <br /> sampling. <br /> 3. The sample ^fume which field personnel anticipate collecting. <br /> A. Sample Collection <br /> During sampling, the field personnel should note any characteristics which may <br /> provide information to the laboratory staff regarding type or concentration of <br /> chemical constituents in the sampled matrix. It is of particular importance <br /> that characteristics, such as low flash point, explosivity, or high toxicity, <br /> be noted on the chain-of-custody forms (see Attachment 1) to alert laboratory <br /> personnel of potential health and safety concerns during the handling of the <br /> samples. <br /> Cani onie'_ '":Z'1_ra 111 '�'G <br />