This paper addresses the experience, knowledge, and expertise that Duratek has acquired while performing environmental remediation at two large low-level radioactive waste (LLRW) disposal facilities in the United States. Environmental remediation and related waste disposal has been the company’s primary line of business line since it was founded in 1969. It has disposed of more than half of the low-level radioactive waste generated in the U.S. over the past thirty years, working with almost every radioactive waste generator in the country. That experience has allowed the company to develop a unique understanding of safe, efficient, and cost-effective LLRW disposal methods. The paper also tracks the history of waste disposal technology at the Barnwell Disposal Site in South Carolina and the U.S. Department of Energy Environmental Restoration Disposal Facility (ERDF) at Oak Ridge, Tennessee. In particular, it describes the evolution of trench design, operations, and disposal procedures for these facilities. It also discusses the licensing of one the most active waste disposal sites in the U.S., the success of which has been assured to customers and stake-holders because of: • Well trained personnel who are dedicated to the design, construction and operation of safe and efficient disposal facilities; • Commitment to strong community relations; • Comprehensive knowledge of proven disposal strategies, technologies, and management practices; • Capability and readiness to respond rapidly to routine and emergency situations; • Established record of comprehensive and responsive communications with regulatory authorities; • Commitment to quality, compliance and personnel health, and safety; and • Financial systems that ensure long-term facilities management.

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