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Active layer hydrology for Imnavait Creek, Toolik, Alaska

Description: The hydrology of the active layer of a watershed is described. In the annual hydrologic cycle, snowmelt is the most significant event at Imnavait Creek located near Toolik Lake, Alaska. Precipitation that has accumulated for more than 6 months on the surface melts in a relatively short period of 7 to 10 days once sustained melting occurs. Significant runoff events are few. Convective storms covering relatively small areas on the North Slope of Alaska can produce significant small-scale events i… more
Date: April 1, 1987
Creator: Hinzman, L.D. & Kane, D.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Estimating properties of unsaturated fractured formations from injection and falloff tests

Description: A new technique for calculating hydraulic properties of unsaturated fractured formations is proposed as an alternative to the common approach involving steady-state analysis of multi-rate gas injection tests. This method is based on graphical analysis of unsteady-state pressure-time data from an injection-falloff test sequence. Both gas and water injection testing are considered. Flow in a horizontal fracture of limited lateral extent, bounded above and below by an impermeable matrix, and inter… more
Date: December 1, 1987
Creator: Mishra, S.; Bodvarsson, G.S. & Attanayake, M.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geothermal investigations in Idaho: Geothermal resource analysis in Twin Falls County, Idaho:

Description: Increased utilization of the geothermal resource in the Twin Falls - Banbury area of southern Idaho has resulted in noticeable declines in the artesian head of the system. In order to determine the nature of the declines, a network of wells was identified for monitoring shut-in pressures and temperatures. In addition, a compilation of data and reconnaissance of the areal geology was undertaken in order to better understand the geologic framework and its relationship to the occurrence of the the… more
Date: July 1, 1987
Creator: Street, L.V. & DeTar, R.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Proceedings of the wellbore sampling workshop

Description: Representatives from academia, industry and research laboratories participated in an intensive two-day review to identify major technological limitations in obtaining solid and fluid samples from wellbores. Top priorities identified for further development include: coring of hard and unconsolidated materials; flow through fluid samplers with borehole measurements T, P and pH; and nonintrusive interrogation of pressure cores.
Date: November 1, 1987
Creator: Traeger, R. K. & Harding, B. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Results from shallow research drilling at Inyo Domes, Long Valley Caldera, California and Salton Sea geothermal field, Salton Trough, California

Description: This report reviews the results from two shallow drilling programs recently completed as part of the United States Department of Energy Continental Scientific Drilling Program. The purpose is to provide a broad overview of the objectives and results of the projects, and to analyze these results in the context of the promise and potential of research drilling in crustal thermal regimes. The Inyo Domes drilling project has involved drilling 4 shallow research holes into the 600-year-old Inyo Dome… more
Date: September 1, 1987
Creator: Younker, L.W.; Eichelberger, J.C.; Kasameyer, P.W.; Newmark, R.L. & Vogel, T.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Ground-water monitoring compliance projects for Hanford Site facilities: Progress Report for the Period July 1 to September 30, 1987

Description: This report documents the progress of four Hanford Site ground-water monitoring projects for the period from July 1 to September 310, 1987. The four disposal facilities are the 300 Area Process Trenches, 183-H Solar Evaporation Basins, 200 Area Low-Level Burial Grounds, and Nonradioactive Dangerous Waste (NRDW) Landfill. This report is the fifth in a series of periodic status reports. During this reporting period, field activities consisted of completing repairs on five monitoring wells origina… more
Date: November 1, 1987
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Ground-water monitoring compliance projects for Hanford Site facilities: Volume 1, The report and Appendix A, Progress report for the period October 1 to December 31, 1986

Description: This report documents recent progress on ground-water monitoring projects for four Hanford Site facilities: the 300 Area Process Trenches, the 183-H Solar Evaporation Basins, the 200 Area Low-Level Burial Grounds, and the Nonradioactive Dangerous Waste (NRDW) Landfill. The existing ground-water monitoring projects for the first two facilities named in the paragraph above are currently being expanded by adding new wells to the networks. During the reporting period, sampling of the existing wells… more
Date: February 1, 1987
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A core hole into the hydrothermal system of the Long Valley caldera

Description: To investigate the present-day hydrothermal system, the ''Shady Rest'' hole was continuously cored 715m into the southwestern moat of the Long Valley caldera. The hole intersected 100m of glacial till and 300m of postcaldera rhyolite before entering the welded Bishop Tuff and bottoming in that unit. A sharp temperature rise over the upper 350m, and near-isothermal conditions below reflect the presence of approx.200/sup 0/C water moving through open, calcite-lined fractures in silicified Early R… more
Date: March 1, 1987
Creator: Wollenberg, H.; White, A.; Flexser, S.; Sorey, M. & Farrar, C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Comments on model validation

Description: The paper points out the importance and usefulness of recognizing the separate roles of processes and geometric structures in predictive modeling of the performance of a nuclear waste repository or underground injection disposal of toxic wastes. Based on this a validation procedure is proposed. Furthermore, two stages and three elements of validation are described and discussed. Finally, comments are made on the choice of measurables to be used to compare modeling results and field data in the … more
Date: July 1, 1987
Creator: Tsang, Chin-Fu
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Forecasting contaminant concentrations: Spills in the White Oak Creek Basin

Description: The Streamflow Synthesis and Reservoir Regulation (SSARR) model has been installed and sufficiently calibrated for use in managing accidental release of contaminants in surface waters of the White Oak Creek (WOC) watershed at ORNL. The model employs existing watershed conditions, hydrologic parameters representing basin response to precipitation, and a Quantitative Precipitation Forecast (QPF) to predict variable flow conditions throughout the basin. Natural runoff from each of the hydrological… more
Date: January 1, 1987
Creator: Borders, D.M.; Hyndman, D.W. & Huff, D.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Three-dimensional simulation of groundwater flow and transport of chemical and low-level radioactive constituents within two production areas of the Savannah River Plant

Description: Modeling of transport in the environmental media was performed. Predicting the future performance of any waste site or facility and postulated actions in terms of migration of potential hazardous materials requires mathematical models capable of simulating flow and transport in the groundwater. Three-dimensional groundwater flow and transport models were developed to simulate the groundwater movement and contaminant transport in the Raw Materials Fabrication Area and the Separations Area. The o… more
Date: January 1, 1987
Creator: Stephenson, D. E.; Looney, B. B.; Andrews, C. B. & Buss, D. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Summary of environmental characterization activities at the Oak Ridge National Laboratory Solid Waste Storage Area Six, FY 1986 through 1987

Description: The Oak Ridge National Laboratory (ORNL) Remedial Action Program (RAP), has supported characterization activities in Solid Waste Storage Area (SWSA 6) to acquire information necessary for identification and planning of remedial actions that may be warranted, and to facilitate eventual closure of the site. In FY 1986 investigations began in the areas of site hydrology, geochemistry, soils, geology, and geohydrologic model application. This report summarizes work carried out in each of these area… more
Date: September 30, 1987
Creator: Davis, E. C.; Solomon, D. K.; Dreier, R. B.; Lee, S. Y.; Kelmers, A. D.; Lietzke, D. A. (Oak Ridge National Lab., TN (United States)) et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Deterministic methods for sensitivity and uncertainty analysis in large-scale computer models

Description: The fields of sensitivity and uncertainty analysis are dominated by statistical techniques when large-scale modeling codes are being analyzed. This paper reports on the development and availability of two systems, GRESS and ADGEN, that make use of computer calculus compilers to automate the implementation of deterministic sensitivity analysis capability into existing computer models. This automation removes the traditional limitation of deterministic sensitivity methods. The paper describes a d… more
Date: January 1, 1987
Creator: Worley, B. A.; Oblow, E. M.; Pin, F. G.; Maerker, R. E.; Horwedel, J. E.; Wright, R. Q. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Numerical modeling of geothermal systems with applications to Krafla, Iceland and Olkaria, Kenya

Description: The use of numerical models for the evaluation of the generating potential of high temperature geothermal fields has increased rapidly in recent years. In the present paper a unified numerical approach to the modeling of geothermal systems is discussed and the results of recent modeling of the Krafla geothermal field in Iceland and the Olkaria, Kenya, are described. Emphasis is placed on describing the methodology using examples from the two geothermal fields.
Date: August 1, 1987
Creator: Bodvarsson, G.S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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RCRA Facilities Assessment (RFA)---Oak Ridge National Laboratory

Description: US Department of Energy (DOE) facilities are required to be in full compliance with all federal and state regulations. In response to this requirement, the Oak Ridge National Laboratory (ORNL) has established a Remedial Action Program (RAP) to provide comprehensive management of areas where past and current research, development, and waste management activities have resulted in residual contamination of facilities or the environment. This report presents the RCRA Facility Assessment (RFA) requi… more
Date: March 1, 1987
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An evaluation of aquifer intercommunication between the unconfined and Rattlesnake Ridge aquifers on the Hanford Site

Description: During 1986, Pacific Northwest Laboratory conducted a study of a portion of the Rattlesnake Ridge aquifer (confined aquifer) that lies beneath the B Pond - Gable Mountain Pond area of the Hanford Site. The purpose was to determine the extent of intercommunication between the unconfined aquifer and the uppermost regionally extensive confined aquifer, referred to as the Rattlesnake Ridge aquifer. Hydraulic head data and chemical data were collected from the ground water in the study area during D… more
Date: October 1, 1987
Creator: Jensen, E. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Application of rock varnish dating of quaternary surficial deposits in determining times of fault movement

Description: Rock varnish, a coating commonly found on rock surfaces in arid and semiarid regions, has a significant potential in paleoseismic studies, as a wide variety of Quaternary surfaces and surficial deposits can be dated with the rock varnish technique. If the formation of geomorphic surfaces or surficial deposits can be related to times of faulting or if faulting has broken or deformed such features, then rock varnish dating can be used to constrain maximum and minimum times of motion on the relate… more
Date: January 1, 1987
Creator: Harrington, C.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Two-Phase Flow in Geothermal Systems

Description: The overall object was to establish a full experimental correlation between flashing flows of water-steam in actual geothermal wells and flashing flows of refrigerant-114 (R-114) in the Brown University/DOE Two-Phase Flow Facility. Our experiments show that the similarity theory developed in our laboratory during previous phases of this research project can be used to predict accurately the pressure gradient in the two-phase region of a flowing geothermal well using laboratory measurements on R… more
Date: August 1, 1987
Creator: Maeder, P. F. & Kestin, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An analysis of the hydrologic effects of proposed test drilling in the Winema National Forest near Crater Lake, Oregon

Description: This paper describes the results of a preliminary study on the hydrologic regime underlying the Crater Lake Caldera, Oregon. The study was performed to provide a basis for evaluating the potential for polluting Crater Lake by drilling exploratory boreholes on the flanks of the mountain. A simple conceptual model of the hydrologic regime was developed by synthesizing the data from the region surrounding the Caldera. Based on the conceptual model, a series of numerical simulations aimed at establ… more
Date: July 1, 1987
Creator: Sammel, E.A. & Benson, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Interpretation of shallow crustal structure of the Imperial Valley, California, from seismic reflection profiles

Description: Eight seismic reflection profiles (285 km total length) from the Imperial Valley, California, were provided to CALCRUST for reprocessing and interpretation. Two profiles were located along the western margin of the valley, five profiles were situated along the eastern margin and one traversed the deepest portion of the basin. These data reveal that the central basin contains a wedge of highly faulted sediments that thins to the east. Most of the faulting is strike-slip but there is evidence for… more
Date: May 1, 1987
Creator: Severson, L.K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Heat and mass transfer in the Klamath Falls, Oregon, geothermal system

Description: Over the last 50 years significant amounts of data have been obtained from the Klamath Falls geothermal resource. To date, the complexity of the system has perplexed researchers, leading to the development of only very generalized hydrogeologic and geothermal models of the area. Based on reevaluation of all available data, a detailed conceptual model for the Klamath Falls geothermal resource is proposed. A comprehensive 3-dimensional numerical model, based on the proposed conceptual model is al… more
Date: May 1, 1987
Creator: Prucha, R. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A borehole fluid conductivity logging method for the determination of fracture inflow parameters

Description: It is of much current interest to determine the flow characteristics of fractures intersecting a wellbore to provide data in the estimation of the hydrologic behavior of fractured rocks. The fluid inflow rates from the fractures into the wellbore are important quantities to measure. Often these inflows are at very low rates. One often finds that only a few percent of the fractures identified by core inspection and geophysical logging are water-conducting fractures, the rest being closed, clogge… more
Date: October 1, 1987
Creator: Tsang, Chin-Fu
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Summary of water-level measurements around the 1325-N crib during the fall of 1985 and the winter of 1986-1987

Description: This report provides a summary of the water-level data collected from the ground water under the Hanford Site and from the Columbia River during the fall of 1985 and the winter of 1986-1987 by the Pacific Northwest Laboratory for UNC Nuclear Industries, Inc., and more recently under the direction of Westinghouse Hanford Company. During this study, water levels were measured in 28 wells around the 1325-N crib and connecting trench to monitor the rise and fall of ground-water levels resulting fro… more
Date: November 1, 1987
Creator: Jensen, E. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Stratabound pathways of preferred groundwater flow: An example from the Copper Ridge Dolomite in East Tennessee

Description: The Copper Ridge Dolomite of the Upper Cambrian Knox Group underlies a site at Oak Ridge, Tennessee under consideration by the Department of Energy (DOE) for a below ground waste disposal facility. The Copper Ridge was studied for DOE to understand the influence of lithology on deep groundwater flow. Three facies types are distinguished which comprise laterally continuous, 1 to 4 m thick rock units interpreted to represent upward-shallowing depositional cycles having an apparently significant e… more
Date: July 14, 1987
Creator: Lee, R. & Ketelle, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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