A joint Russian-American field test at the Chelyabinsk-65 (Mayak) Site: Test description and preliminary results

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In September 1994, a Russian-American team conducted hydrogeological, geochemical, geophysical, and radiometric measurements in the territory of the Mayak Production Association. The primary purpose of these operations was to examine the groundwater plume moving from Lake Karachai toward the river. Activities encompassed isolation of hydrologic intervals in two wells and production of water from these intervals, to compare isolated versus open-well sampling methods; surface and soil-water sampling, accompanying radiometric measurements and subsequent chemical analyses; and electrical resistivity profiling in areas of expected contrasting resistivity. Preliminary results indicate that (1) {sup 60}Co and {sup 137}Cs are present in small concentrations in ... continued below

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21 p.

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Wollenberg, H.; Tsang, C.F. & Frangos, W. May 1, 1995.

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Description

In September 1994, a Russian-American team conducted hydrogeological, geochemical, geophysical, and radiometric measurements in the territory of the Mayak Production Association. The primary purpose of these operations was to examine the groundwater plume moving from Lake Karachai toward the river. Activities encompassed isolation of hydrologic intervals in two wells and production of water from these intervals, to compare isolated versus open-well sampling methods; surface and soil-water sampling, accompanying radiometric measurements and subsequent chemical analyses; and electrical resistivity profiling in areas of expected contrasting resistivity. Preliminary results indicate that (1) {sup 60}Co and {sup 137}Cs are present in small concentrations in water of the Mishelyak River, (2) analyses of water samples collected by a downhole sampler and of water produced from packed-off intervals agree within limits of laboratory accuracy, attesting to the efficacy of the sampling methods presently used by the Russian workers; and (3) strong contrasts occur between the electrical resistivities of soil and bedrock. Further collaborative work is strongly recommended, and should include more detailed isolation of intervals in wells by multi-packer installations, to better determine the geochemical and hydrological characteristics of the Karachai-Mishelyak system; deployment of a broader soil-water and soil sampling array; a more detailed examination of the distribution and concentration of radionuclides by high-resolution field gamma spectrometry; and a detailing of the area`s electrical resistivity setting, using a mobile electromagnetic measurement system.

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21 p.

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INIS; OSTI as DE95012351

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  • 5. international conference on radioactive waste management and environmental remediation, Berlin (Germany), 3-9 Sep 1995

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  • Other: DE95012351
  • Report No.: LBL--36825
  • Report No.: RAC--12;CONF-950917--11
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 78566
  • Archival Resource Key: ark:/67531/metadc720418

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • May 1, 1995

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • April 5, 2016, 10:14 a.m.

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Wollenberg, H.; Tsang, C.F. & Frangos, W. A joint Russian-American field test at the Chelyabinsk-65 (Mayak) Site: Test description and preliminary results, article, May 1, 1995; California. (digital.library.unt.edu/ark:/67531/metadc720418/: accessed November 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.