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Appendix C:Field and Sampling Methods <br /> and stainless steel hand augers and trowels. Specific decontamination procedures employed for <br /> these types of sampling equipment are more fully described in SAIC FTP No. 400. <br /> C.6 SAMPLE CUSTODY <br /> The integrity of environmental samples collected during this investigation was ensured, from <br /> collection to final dispostion, by documenting possession in accordance with SAIC FTP No. 625, <br /> "Chain-of-Custody." The chain-of-custody record identified the contents of each shipment and <br /> maintained the custodial integrity of the samples. Generally, a sample was considered to be in a <br /> person's custody if it was in their physical possession or in their view, locked up, or kept in a <br /> secured area that was restricted to authorized personnel. The chain-of-custody record included <br /> the following: <br /> • Sample identification numbers; <br /> • Site name; <br /> • Sample date(s); <br /> • Numbers and volumes of sample containers; <br /> • Required analyses; <br /> • Signatures and names of samplers; <br /> • Signature of any individual(s) with custody over samples; <br /> • Airbill number; and <br /> • Note(s) indicating special holding time and/or detection limits. <br /> Every transfer of custody was noted and signed for on the record, a copy of which was kept by <br /> an individual who signed. The original records accompanied the sample shipment with a <br /> separate record for each cooler. A copy was made for the SAIC master files. <br /> C-3 96— a <br /> WIff MMM'Ii%�0 <br /> From sclewe to Solutions <br />