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r r� • Sample Identification Label • Chain-of Custody Each separate sample will be identified using a label obtained from the laboratory The sampler will complete all information, using a black waterproof pen, as follows The Slte ID This is the name assigned to the particular sampling station The Sample Source. This will be the name of the well location The Analysis Required. This will be indicated for each sample using proper EPA reference number indicating analytical method The Date Taken. This will be the date the sample was collected, using the format MM-DD-YY Example 06-15-91 Noting-the Time. The time the sample was collected will be given in military time Example 1430 The_Method of Preservation. Preservation methods will be provided, specifying the type of preservation For non-acidified samples, "ice"will be indicated The Sam, Ir�er's Name. This will be printed in the "Sampled By" section The sampler's signature will be written in the "Signed" section There is the potential that samples and analyses could be of an evidentiary nature Therefore, the possession of samples must be traceable from the time samples are collected in the field until the analysis is completed and the data are entered as evidence The tracing of the samples through the laboratory is accomplished by "chain-of-custody" procedures Chain-of-Custody Forms will be completed for each set of samples The sampler will sign the first "Relinquished By" line at the bottom of the chain of custody record, and will indicate the date and time of the custody transfer Samples will not leave custody of the field technician until relinquished to another party Custody is defined by the following criteria In the Actual Physical Possession. When field personnel have sample in possession, they have "custody" In View. The samples are in the field personnel's view, after being in their physical possession I Areas. Sample is kept in a locked area after being in physical possession Designated Area. Sample is in a designated, locked-storage area Transfer of samples to an analytical laboratory will be done by use of a common carrier or personal delivery Camer personnel will personally secure samples and sample containers in such a way that no containers can be opened in transit The person to whom custody is being transferred will sign on the first "Received By" line of the chain-of-custody record, indicating that custody is being accepted by the carrier for all the samples P 1G1NMPIFORMSITEX-SOP DOC Page 4 of 5