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A-8 <br /> ' 5.3 Corrections to Documentation <br /> Original data recorded in field notebooks, chain-of-custody records, and other forms were <br /> ' written in ink. These documents were not altered, destroyed, or discarded, even if they were <br /> illegible or contained inaccuracies that required a replacement document. <br /> If an error was made or found on a document, the individual making the corrections did so by <br /> crossing a single line through the error, entering the correct information, and initialing and <br /> dating the change. The erroneous information was obliterated. Any subsequent error(s) <br /> discovered on a document were corrected. All corrections were initialed and dated. <br /> 5.4 Sample Storage and Disposal <br /> Samples and extracts were retained by the analytical laboratory for 60 days after a written report <br /> was issued by the laboratory. Unless notified by the program manager, excess or unused <br /> ' samples were disposed of by the laboratory in an appropriate manner consistent with applicable <br /> government regulations. <br /> 1 <br />