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Title: Hydrologic testing methodology and results from deep basalt boreholes

Conference ·
OSTI ID:5293505

The objective of the hydrologic field-testing program is to provide data for characterization of the groundwater systems wihin the Pasco Basin that are significant to understanding waste isolation. The effort is directed toward characterizing the areal and vertical distributions of hydraulic head, hydraulic properties, and hydrochemistry. Data obtained from these studies provide input for numerical modeling of groundwater flow and solute transport. These models are then used for evaluating potential waste migration as a function of space and time. The groundwater system beneath the Hanford Site and surrounding area consists of a thick, accordantly layered sequence of basalt flows and associated sedimentary interbed that primarily occur in the upper part of the Columbia River basalt. Permeable horizons of the sequence are associated with the interbeds and the interflow zones within the basalt. The columnar interiors of a flow act as low-permeability aquitards, separating the more-permeable interflows or interbeds. This paper discusses the hydrologic field-gathering activities, specifically, field-testing methodology and test results from deep basalt boreholes.

Research Organization:
Rockwell International Corp., Richland, WA (USA). Energy Systems Group
DOE Contract Number:
AC06-77RL01030
OSTI ID:
5293505
Report Number(s):
RHO-BW-SA-189; CONF-820550-2; ON: DE82014092; TRN: 82-013000
Resource Relation:
Conference: Geological Society of American Rocky Mountain section meeting, Bozeman, MT, USA, 7 May 1982; Other Information: Portions of document are illegible
Country of Publication:
United States
Language:
English