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Title: Analysis of alternatives for greater-confinement disposal of low-level radioactive waste

Technical Report ·
OSTI ID:6452794

A comparative method for evaluating technical alternatives for greater-confinement disposal (GCD) of low-level radioactive waste (LLW) is developed and applied to nine GCD alternatives. The bounding alternatives are a conventional shallow-land burial (SLB) facility (used as a reference facility for comparative determination of costs and risks) and a deep geologic repository. The other alternatives include a deep trench, improved waste form, engineered structures, boreholes, hydrofracture, and a shallow repository. The method ranks the alternatives based on a ranking parameter, RP equals C (cost in dollars) plus H (health risk converted to dollars), which is derived from benefit-cost-risk analysis. Costs are developed for a GCD facility that is co-located with a conventional SLB facility and has a capacity of 10,000 m/sup 3/ of GCD waste; risks are based on a pathway analysis for estimating the dose to individuals resulting from waste placed in a GCD facility. Application of the method, using a generic analysis based on representative waste streams of intermediate-activity and high-activity LLW that would require GCD, indicates that all alternatives except the reference SLB facility can be expected to meet performance objectives (500 mrem/yr wholebody dose to onsite intruders; 25 mrem/yr whole-body dose to members of the general public from releases to the environment). All of the alternatives considered are equivalent within the resolving power of the generic analysis, except for the repository designs, which are considerably more costly with negligible concomitant reduction in health risks. Site-specific application of the method, with more detailed design information, would be needed in order to provide a basis for selecting an optimum GCD alternative in any actual situation.

Research Organization:
EG and G Idaho, Inc., Idaho Falls (USA)
DOE Contract Number:
AC07-76ID01570
OSTI ID:
6452794
Report Number(s):
DOE/LLW-31T; ON: DE86005107
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
Country of Publication:
United States
Language:
English