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File No 93342-WP Page 6 <br /> 11- If it is necessary for samples or sample chests to leave the immediate control of the <br /> sampler prior to delivery to the laboratory, such as shipment by a common carrier, a <br /> custody seal will be placed on each sample container and/or sample chest to ensure that <br /> the samples have not been tampered with during transportation The custody seal will <br /> contain the sampler's signature, the date, and time the seal was emplaced <br /> 12- In order to document and trace sample(s) possession from time of collection, a positive <br /> signature chain-of-custody record will be filled out by the sampler and will accompany <br /> the sample(s) through the laboratory analyses The complete chain-of-custody record will <br /> be included with the analytical report from the laboratory <br /> ADVANCE SOIL TECHNOLOGY, INC <br />