An initial inverse calibration of the ground-water flow model for the Hanford unconfined aquifer

Technical Report · Thu Mar 01 04:00:00 EST 1990

DOI:https://doi.org/10.2172/6913533· OSTI ID:6913533

Jacobson, E A ^[1]; Freshly, M D ^[2]

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1. Nevada Univ., Reno, NV (USA). Desert Research Inst.
2. Pacific Northwest Lab., Richland, WA (USA)

Large volumes of process cooling water are discharged to the ground form U.S. Department of Energy (DOE) nuclear fuel processing operations in the central portion of the Hanford Site in southeastern Washington. Over the years, these large volumes of waste water have recharged the unconfined aquifer at the Site. This artificial recharge has affected ground-water levels and contaminant movement in the unconfined aquifer. Ground-water flow and contaminant transport models have been applied to assess the impacts of site operations on the rate and direction of ground-water flow and contaminant transport in unconfined aquifer at the Hanford Site. The inverse calibration method developed by Neuman and modified by Jacobson was applied to improve calibration of a ground-water flow model of the unconfined aquifer at the Hanford Site. All information about estimates of hydraulic properties of the aquifer, hydraulic heads, boundary conditions, and discharges to and withdrawals form the aquifer is included in the inverse method to obtain an initial calibration of the ground-water flow model. The purpose of this report is to provide a description of the inverse method, its initial application to the unconfined aquifer at Hanford, and to present results of the initial inverse calibration. 28 refs., 19 figs., 1 tab.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6913533
• Report Number(s): PNL-7144; ON: DE90008224
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220500* -- Nuclear Reactor Technology-- Environmental Aspects
54 ENVIRONMENTAL SCIENCES
540320 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
AQUIFERS
CALIBRATION
CONTAMINATION
COOLANTS
ENVIRONMENTAL IMPACTS
ENVIRONMENTAL TRANSPORT
FLOW MODELS
FLOW RATE
FLUID FLOW
GROUND WATER
HANFORD RESERVATION
HYDROGEN COMPOUNDS
LIQUID WASTES
MASS TRANSFER
MATHEMATICAL MODELS
NATIONAL ORGANIZATIONS
OXYGEN COMPOUNDS
US DOE
US ERDA
US ORGANIZATIONS
WASTE WATER
WASTES
WATER
WATER TABLES