Homogeneous Reactor Experiment (HRE) Pond cryogenic barrier technology demonstration: Pre-barrier subsurface hydrology and contaminant transport investigation Metadata

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Title

  • Main Title Homogeneous Reactor Experiment (HRE) Pond cryogenic barrier technology demonstration: Pre-barrier subsurface hydrology and contaminant transport investigation

Creator

  • Author: Moline, G.R.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: USDOE, Washington, DC (United States)
  • Sponsor: United States. Department of Energy. Office of Environmental Restoration and Waste Management.
    Contributor Type: Organization
    Contributor Info: USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)

Publisher

  • Name: Oak Ridge National Laboratory
    Place of Publication: Tennessee
    Additional Info: Oak Ridge National Lab., TN (United States)

Date

  • Creation: 1998-03-01

Language

  • English

Description

  • Content Description: The Homogeneous Reactor Experiment (HRE) Pond is the site of a former impoundment for radioactive wastes that has since been drained, filled with soil, and covered with an asphalt cap. The site is bordered to the east and south by a tributary that empties into Melton Branch Creek and that contains significant concentrations of radioactive contaminants, primarily {sup 90}Sr. Because of the proximity of the tributary to the HRE disposal site and the probable flow of groundwater from the site to the tributary, it is hypothesized that the HRE Pond is a source of contamination to he creek. As a means for temporary containment of contaminants within the impoundment, a cryogenic barrier technology demonstration was initiated in FY96 with a background hydrologic investigation that continued through FY97. Cryogenic equipment installation was completed in FY97, and freezing was initiated in September of 1997. This report documents the results of a hydrologic and geologic investigation of the HRE Pond/cryogenic barrier site. The purpose of this investigation is to evaluate the hydrologic conditions within and around the impoundment in order to meet the following objectives: (1) to provide a pre-barrier subsurface hydrologic baseline for post-barrier performance assessment; (2) to confirm that the impoundment is hydraulically connected to the surrounding sediments; and (3) to determine the likely contaminant exit pathways from the impoundment. The methods of investigation included water level and temperature monitoring in a network of wells and standpipes in and surrounding the impoundment, a helium tracer test conducted under ambient flow conditions, and geologic logging during the drilling of boreholes for installation of cryogenic probes and temperature monitoring wells.
  • Physical Description: 57 p.

Subject

  • Keyword: Settling Ponds
  • Keyword: Radioactive Waste Facilities
  • Keyword: Ground Water
  • Keyword: Remedial Action
  • Keyword: Containment Systems
  • Keyword: Site Characterization
  • Keyword: Strontium 90
  • STI Subject Categories: 22 Nuclear Reactor Technology
  • Keyword: Numerical Data
  • Keyword: Hre-2 Reactor

Source

  • Other Information: DN: Environmental Sciences Division publication 4732

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Other: DE98058137
  • Report No.: ORNL/TM--13566
  • Grant Number: AC05-96OR22464
  • DOI: 10.2172/656473
  • Office of Scientific & Technical Information Report Number: 656473
  • Archival Resource Key: ark:/67531/metadc704362

Note

  • Display Note: INIS; OSTI as DE98058137