Vadose Zone Model for B-3C Pond for Composite Analysis

Technical Report · Tue Sep 01 04:00:00 EDT 2020

DOI:https://doi.org/10.2172/1670435· OSTI ID:1670435

Farrow, C.R. ^[1]; McDonald, J.P. ^[1]; Lindberg, S.L. ^[1]; Tartakovsky, G. ^[1]; Allena, P. ^[1]; Nichols, William E. ^[2]

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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. 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 simulation time starts in 1943 and ends at 12070, which is 10,000 years after assumed Hanford Site closure in 2070. The scope of this ECF is to document the development and results of the B-3C Pond vadose zone model. The B-3C Pond model covers the 216-B-3C Expansion Pond of the 216-B-3 Pond System located in a topographic low east of the 200 East Area. The pond system operated from 1945 to 1997 and received effluents from the Plutonium Uranium Extraction Plant, B Plant, 284-E Powerhouse, and other 200 East Area facilities.

• 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: 1670435
• Report Number(s): ECF-HANFORD--19-0043
• Country of Publication: United States
• Language: English

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