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U.S. Department of Energy
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Development of Probabilistic Fate and Transport Models for the Mixed Waste Landfill at Sandia National Laboratories

Conference ·
OSTI ID:21208717
; ; ;  [1]
  1. Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185 (United States)

A probabilistic performance assessment has been conducted to evaluate the fate and transport of radionuclides (Am-241, Cs-137, Co-60, Pu-238, Pu-239, Ra-226, Rn-222, Sr-90, Th-232, H-3, U-238), heavy metals (lead and cadmium), and volatile organic compounds at the Mixed Waste Landfill (MWL). Probabilistic analyses were performed to quantify uncertainties inherent in the system and models for a 1,000-year period, and sensitivity analyses were performed to identify parameters and processes that were most important to the simulated performance metrics. Comparisons between simulated results and measured values at the MWL were made to gain confidence in the models and perform calibrations when data were available. In addition, long-term monitoring requirements and triggers were recommended based on the results of the quantified uncertainty and sensitivity analyses. (authors)

Research Organization:
WM Symposia, Inc., PO Box 13023, Tucson, AZ, 85732-3023 (United States)
OSTI ID:
21208717
Report Number(s):
INIS-US--09-WM-06255
Country of Publication:
United States
Language:
English