Functional requirements for the Tumulus I and II cap Waste Area Grouping 6 Oak Ridge National Laboratory

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The tumulus method of solid low-level waste (LLW) disposal began in 1989 with the Tumulus Disposal Demonstration (TDD) project, conducted on Tumulus I. LLW is contained in 4-ft {times} 4-ft {times} 6-ft boxes which are placed into precast concrete casks. The annular space around the box is grouted with a cementious grout before the lid is installed. The LLW does not contain RCRA materials or liquids. The casks are then stacked two high on the concrete tumulus pad. Prior to filling Tumulus I to capacity Tumulus II was constructed. Tumulus II will be filled to capacity by the end of ... continued below

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Pages: (13 p)

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Cox, L.C. June 1, 1991.

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Description

The tumulus method of solid low-level waste (LLW) disposal began in 1989 with the Tumulus Disposal Demonstration (TDD) project, conducted on Tumulus I. LLW is contained in 4-ft {times} 4-ft {times} 6-ft boxes which are placed into precast concrete casks. The annular space around the box is grouted with a cementious grout before the lid is installed. The LLW does not contain RCRA materials or liquids. The casks are then stacked two high on the concrete tumulus pad. Prior to filling Tumulus I to capacity Tumulus II was constructed. Tumulus II will be filled to capacity by the end of 1991 at which time the Interim Waste Management Facility (IWMF) will have been constructed and will provide approximately six years of LLW disposal capacity. This project will provide interim closure of the Tumulus I and II by designing and constructing a multilayered cap, with monitoring capabilities, which will be consistent in purpose with the requirements of a Record of Decision (ROD) which will result from the Waste Area Group (WAG) 6 closure and remediation effort. Capping Tumulus I and II has been a part of the overall tumulus disposal plan since inception in the Low Level Waste Disposal, Development and Demonstration (LLWDDD) program strategy issued in 1988. This project consists of the design and construction of a low permeability cap over the Tumulus I and II disposal units. The cap shall incorporate a drainage system and be maintainable. The monitoring systems now in place will be modified and be utilized for post-closure monitoring of the pads and groundwater. The capability for performance assessment monitoring will be included in the design.

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Pages: (13 p)

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OSTI; NTIS; INIS; GPO Dep.

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  • Other: DE92004460
  • Report No.: ORNL/ER-48
  • Grant Number: AC05-84OR21400
  • DOI: 10.2172/5671561 | External Link
  • Office of Scientific & Technical Information Report Number: 5671561
  • Archival Resource Key: ark:/67531/metadc1087423

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  • June 1, 1991

Added to The UNT Digital Library

  • Feb. 10, 2018, 10:06 p.m.

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  • Feb. 26, 2018, 5:40 p.m.

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Cox, L.C. Functional requirements for the Tumulus I and II cap Waste Area Grouping 6 Oak Ridge National Laboratory, report, June 1, 1991; Tennessee. (digital.library.unt.edu/ark:/67531/metadc1087423/: accessed April 26, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.