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U.S. Department of Energy
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ISR Restoration Methods and Applicability to Groundwater Remediation at Abandoned Uranium Mills - 20342

Conference ·
OSTI ID:23030505
 [1];  [2];  [3];  [4];  [5]
  1. Golder Associates Inc. (United States)
  2. Navarro Research and Engineering, Inc. (United States)
  3. WME Technologies, LLC (United States)
  4. Energy Fuels Resources USA Inc. (United States)
  5. US Department of Energy, Office of Legacy Management (United States)

There are numerous abandoned uranium mining and mill sites in the southwestern US. Surface remediation was undertaken in the 1980's and 90's to cover mill tailings and minimize infiltration of meteoric precipitation into the subsurface These actions have reduced the availability of tailings contaminants but many of these sites have persistent groundwater contamination, primarily due to the disposal of tailings and process fluids in unlined impoundments during the mill's operational life. Active in situ recovery (ISR) uranium mining and wellfield restoration practices are examined to determine the factors that contribute to the success of groundwater restoration. Hydrologic characteristics, geochemistry, ore body quality, regulatory requirements and the aboveground components of uranium production and water treatment are considered. While there is no such thing as a typical abandoned mill site, the potential use of ISR restoration methods is evaluated for viability as a remedial alternative to mine and mill sites that have residual contaminated groundwater plumes. (authors)

Research Organization:
WM Symposia, Inc., PO Box 27646, 85285-7646 Tempe, AZ (United States)
OSTI ID:
23030505
Report Number(s):
INIS-US--21-WM-20342
Country of Publication:
United States
Language:
English