Recent drilling program to investigate radionuclide migration at the Nevada Test Site

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Recent drilling affords new opportunities to investigate the occurrence, distribution and transport of radionuclides in the unsaturated and saturated zone at the Nevada Test Site (NTS), Nye County, Nevada. This program is unique becmise of the elevated activities of radionuclides encountered during drilling (> 3.7E+6 Bq/L 3H), extreme completion depths (> 950 m), the expense of constructing new wells (> $IE+6/borehole), and collaboration of government, academic, and industrial partners in the planning and execution of the program. The recent chilling is significant because it substantively augments earlier field of radionuclide migration at NTS, most notably the 1974 CAMBRIC RNM experiment ... continued below

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Smith, D. K. April 1, 1997.

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Recent drilling affords new opportunities to investigate the occurrence, distribution and transport of radionuclides in the unsaturated and saturated zone at the Nevada Test Site (NTS), Nye County, Nevada. This program is unique becmise of the elevated activities of radionuclides encountered during drilling (> 3.7E+6 Bq/L 3H), extreme completion depths (> 950 m), the expense of constructing new wells (> $IE+6/borehole), and collaboration of government, academic, and industrial partners in the planning and execution of the program. The recent chilling is significant because it substantively augments earlier field of radionuclide migration at NTS, most notably the 1974 CAMBRIC RNM experiment Sites of five nuclear tests fired below or adjacent to the saturated zone have been drilled. Three of the events were fired in Yucca Flat which is a hydrologically closed basin and two were fired in fractured volcanics of Pahute Mesa. Results from Yucca Flat indicate that volatile and refractory radionuclides, fractionated at zero time, we not highly mobile under sawmted conditions. In contrast, borcholes completed on Pahute Mesa indicate Wgh concentrations of tritium (> 3.7E+6 Bq/L 3H) and other radionuclides may be rted more than 300 m from event cavities as dissolved species or as colloids.

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20 p.; Other: FDE: PDF; PL:

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INIS; OSTI as DE98050955

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  • 4. international conference on methods and applications of radioanalytical chemistry, Kona, HI (United States), 6-11 Apr 1997

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  • Other: DE98050955
  • Report No.: UCRL-JC--127013
  • Report No.: CONF-970424--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 358836
  • Archival Resource Key: ark:/67531/metadc674653

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  • April 1, 1997

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  • July 25, 2015, 2:20 a.m.

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  • June 13, 2016, 12:57 p.m.

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Smith, D. K. Recent drilling program to investigate radionuclide migration at the Nevada Test Site, article, April 1, 1997; California. (digital.library.unt.edu/ark:/67531/metadc674653/: accessed October 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.