Summary of uncertainty estimation results for Hanford tank chemical and radionuclide inventories

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The exact physical and chemical nature of 55 million gallons of radioactive waste held in 177 underground waste tanks at the Hanford Site is not known in sufficient detail to support safety, retrieval, and immobilization missions. The Hanford Engineering Analysis Best-Basis team has made point estimates of the inventories in each tank. The purpose of this study is to estimate probability distributions for each of the analytes and tanks for which the Hanford Best-Basis team has made point estimates. Uncertainty intervals can then be calculated for the Best-Basis inventories and should facilitate the cleanup missions. The methodology used to generate ... continued below

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198 p.

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Ferryman, T.A.; Amidan, B.G. & Chen, G. September 1, 1998.

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Description

The exact physical and chemical nature of 55 million gallons of radioactive waste held in 177 underground waste tanks at the Hanford Site is not known in sufficient detail to support safety, retrieval, and immobilization missions. The Hanford Engineering Analysis Best-Basis team has made point estimates of the inventories in each tank. The purpose of this study is to estimate probability distributions for each of the analytes and tanks for which the Hanford Best-Basis team has made point estimates. Uncertainty intervals can then be calculated for the Best-Basis inventories and should facilitate the cleanup missions. The methodology used to generate the results published in the Tank Characterization Database (TCD) and summarized in this paper is based on scientific principles, sound technical knowledge of the realities associated with the Hanford waste tanks, the chemical analysis of actual samples from the tanks, the Hanford Best-Basic research, and historical data records. The methodology builds on research conducted by Pacific Northwest National Laboratory (PNNL) over the last few years. Appendix A of this report summarizes the results of the study. The full set of results (in percentiles, 1--99) is available through the TCD, (http://twins.pnl.gov:8001).

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198 p.

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INIS; OSTI as DE98059363

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  • Other Information: PBD: Sep 1998

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  • Other: DE98059363
  • Report No.: PNNL--12003
  • Grant Number: AC06-76RL01830
  • DOI: 10.2172/296620 | External Link
  • Office of Scientific & Technical Information Report Number: 296620
  • Archival Resource Key: ark:/67531/metadc677626

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  • September 1, 1998

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  • July 25, 2015, 2:20 a.m.

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  • June 13, 2016, 9:03 p.m.

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Ferryman, T.A.; Amidan, B.G. & Chen, G. Summary of uncertainty estimation results for Hanford tank chemical and radionuclide inventories, report, September 1, 1998; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc677626/: accessed August 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.