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Vadose Zone Model for PUREX Area for Composite Analysis

Technical Report ·
DOI:https://doi.org/10.2172/1668286· OSTI ID:1668286
 [1];  [1];  [1];  [1];  [2]
  1. INTERA, Inc., Austin, TX (United States)
  2. Hanford Site (HNF), Richland, WA (United States)

The objectives of the vadose modeling for the updated Hanford Site composite analysis (CA) are to simulate the flow and transport of water and radionuclide releases from the surface to the water table and to provide radionuclide transfer rates for the plateau to river (P2R) model, version 8.3 (CP-57037, Model Package Report: Plateau to River Groundwater Model, Version 8.3). Water additions include natural recharge and water discharged to the ground as a result of industrial processes associated with Hanford Site operations. Contaminant sources include radionuclides in water discharged to the ground during operations and radionuclides disposed “dry” in solid waste burial grounds or other means. The following 16 radionuclides were selected for this modeling effort; carbon-14 (C-14), chlorine-36 (Cl-36), tritium (H-3), iodine-129 (I-129), neptunium-237 (Np-237), rhenium-187 (Re-187), strontium-90 (Sr-90), technetium-99 (Tc-99), uranium-232 (U-232), uranium-233 (U-233), uranium-234 (U-234), uranium-235 (U-235), uranium-236 (U-236), uranium-238 (U-238), radium-226 (Ra-226), and thorium-230 (Th-230). The simulation time starts in 1943 and ends at 12070, which is 10,000 years after assumed Hanford Site closure in 2070.

Research Organization:
Hanford Site (HNF), Richland, WA (United States); INTERA, Inc., Austin, TX (United States)
Sponsoring Organization:
USDOE Office of Environmental Management (EM)
DOE Contract Number:
AC06-08RL14788
OSTI ID:
1668286
Report Number(s):
ECF-HANFORD--19-0053-00
Country of Publication:
United States
Language:
English

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