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AUG 13 '98 13:31 FR E 8 E i SAN FRANCISCO415 981 0001 TO 12094683433-0033 P. 11'15 3.3.2 Sample Labeling and Documentation DRAFT Sample Jar Labels Sample labs will clearly identify the particular sample, and should include the following: 1. Site name and number. 2. Time and date samples were taken. 3. Sample preservation. 4. Analysis requested. 5. Sample Location. Sample labels will be securely affixed to the sample container. Chain of Custody Record A Chain of Custody record will be maintained from the time the sample is taken to its final deposition. Every transfer of custody must be noted and signed for, and a copy of this record kept by each individual who has signed. When samples (or groups of samples) are not under direct control of the individual responsible for them, they must be stored in a locked container sealed with a Custody Seal. The Chain of Custody record should include (at minimum) the following: 1. Sample identification number. 2. Sample information. 3. Sample location. 4. Sample date. 5. Names(s) and signature(s) of sampler(s). 6. Signature(s) of any individual(s) with control over samples. Custody Seals Custody Seals demonstrate that a sample container has not been tampered with, or opened. The individual in possession of the sample(s) will sign and date the seal, affixing it in such a manner that the container cannot be opened without breaking the seal. The name of this individual, along with a description of the samples packaging, will be noted in the field book. All sample documents will be completed legibly, in ink. Any corrections or revisions will be made by lining through the incorrect entry and by initialing the error. These include the soil and water sampling logbook, the chain-of-custody forms, this field air QASP E&Vsoi-w&zaqup/05-13-97 10