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  • Articles  (45)
  • Oxford University Press  (23)
  • Blackwell Publishing Ltd  (20)
  • American Society of Mechanical Engineers  (2)
  • American Geophysical Union
  • 2005-2009  (6)
  • 1985-1989  (17)
  • 1980-1984  (12)
  • 1975-1979  (9)
  • 1950-1954  (1)
  • Mathematics  (23)
  • Energy, Environment Protection, Nuclear Power Engineering  (22)
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  • Articles  (45)
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  • 1
    Electronic Resource
    Electronic Resource
    REPLY TO the Discussion by James F. Quinlan of Ground Water Tracers (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 24 (1986), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1986.tb01020.x
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  • 2
    Electronic Resource
    Electronic Resource
    Hydrologic Testing of Tight Zones in Southeastern New Mexico (1981)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 19 (1981), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: Increased attention is being directed toward the investigation of tight zones in relation to the storage and disposal of hazardous wastes. Shut-in tests, slug tests, and pressure-slug tests are being used at the proposed Waste Isolation Pilot Plant site, located in southeastern New Mexico, to evaluate the fluid-transmitting properties of several zones above the proposed repository zone. Apparatus used to conduct these tests includes a pressure-transducer system connected to a recording device at the land surface. All three testing methods were used in various combinations to obtain values for the hydraulic properties of the test zones. Multiple testing on the same zone produced similar results. Transmissivities determined by these tests range from 0.00001 to 10 feet squared per day (.000001 to 1 meter squared per day).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1981.tb03498.x
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  • 3
    Electronic Resource
    Electronic Resource
    Ground-Water Tracers — A Short Review (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 18 (1980), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: Tracers are used widely to determine the direction and velocity of ground-water movement. Failures of tracer tests are most commonly a result of incorrect choice of tracers, insufficient concentrations of tracers, and a lack of an understanding of the hydrogeologic system being tested. Some of the most useful general tracers are bromide chloride, rhodamine WT, and various fluorocarbons. For certain purposes, dyed clubmoss and baker's yeast have proved valuable. Many radionuclides including 3H, 82Br, and 198Au are almost ideal for numerous purposes, but radiation hazards associated with their use together with local, State, and Federal regulations have discouraged widespread field applications in recent years within the United States.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1980.tb03366.x
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  • 4
    Electronic Resource
    Electronic Resource
    Use of Risk Assessment Methods in the Certification of Decontaminated Buildings (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Risk analysis 7 (1987), S. 0 
    Details
    ISSN: 1539-6924
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Accidental events such as fires, explosions, and leaks often result in large-scale contaminations of buildings with toxic chemicals. After decontamination, the certification for original use requires testing for residual contamination. The two basic kinds of sampling plans in use up to recently both fall short of the required performance. Their deficiencies are analyzed in terms of the scientific questions implicit in both the sampling plan and the subsequent statistical evaluation. A sampling strategy of a new kind is proposed and discussed in the same context. It is motivated by concern for the long-term safety of the building's occupants and is, therefore, based on factors important in risk assessment. Three different sampling plans are derived in the framework of this methodology, two of which have already been used in actual certification proceedings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1539-6924.1987.tb00485.x
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  • 5
    Electronic Resource
    Electronic Resource
    WHAT IS HYDROGEOLOGY? (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 27 (1989), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1989.tb00433.x
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  • 6
    Electronic Resource
    Electronic Resource
    DISCUSSION OF PAPERS (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 26 (1988), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1988.tb00800.x
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  • 7
    Electronic Resource
    Electronic Resource
    PREDICTIVE APPLICATION OF AN ORNL GEOHYDROLOGY MODEL (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 25 (1987), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: The purpose of this work is to demonstrate the predictive capability of the Oak Ridge National Laboratory finite-element computer model of water flow through aquifers, FEWA. The computer code for FEWA was written by G. T. Yeh and D. D. Huff. The area investigated was the Hialeah-Preston wells in Miami, Florida over the Biscayne aquifer. The field data of May 3, 1977, for the area were used for calibration of the model. The model was then integrated over time until October 4, 1977, using the data on rainfall, infiltration, and pumpage of wells during that period. The predicted potentiometric head for the area compared well with the field data. It may be concluded that substantial confidence in the predictive capability of the model has been established for the site in Florida.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1987.tb02139.x
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  • 8
    Electronic Resource
    Electronic Resource
    Tracing Sewage Effluent Recharge Tucson, Arizona (1976)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 14 (1976), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: Dry washes or river beds are often used by southwestern communities to dispose of treated sewage effluent. Because many of these communities rely on ground water as a water supply, there is concern that this disposal practice may contaminate local aquifers. This has led to implementation of monitoring and tracing programs to quantify effluent and ground-water interactions and to development of efficient, easily used predictive models.The treated sewage effluent from the City of Tucson treatment plant has historically been used for irrigation and/or discharged to the normally dry Santa Cruz River. Numerous sampling programs have been undertaken to quantify the chemical quality, temperature, and microbiological activity of the ground water in the area near the Santa Cruz. Ground-water regions with high chloride and nitrate concentrations tend to be associated with areas irrigated with sewage effluent. Quality degradation due to channel recharge is not as evident because the effluent recharge is restricted by fine materials plugging the channel deposits. Recharging water tends to mound near the contact between the Recent and Fort Lowell formations spreading laterally more rapidly than downward.A new tracer, trichlorofluoromethane (trade name Freon 11, C13CF) with applications similar to environmental tritium is being evaluated. C13CF enters the hydro-logic cycle when it is partitioned between the gas and liquid phases during raindrop formation. C13CF in water samples is separated and quantitatively measured by a gas chromatograph with pulsed electron-capture detector.Preliminary Cl3CF analyses of ground water along the Santa Cruz do not correlate with nitrate values because mixing and increasing atmospheric Cl3CF concentrations were not accounted for. However, the presence of CI3CF in the ground water indicates recent recharge. Predictive modeling will be implemented using CI3CF and a finite-state mixing model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1976.tb03140.x
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  • 9
    Electronic Resource
    Electronic Resource
    DISCUSSION OF “Statistical Prediction Intervals for the Evaluation of Ground-Water Quality,” by Robert D. Gibbons, July-August 1987 issue, v. 25, no. 4, pp. 455–465 (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 26 (1988), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1988.tb00373.x
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  • 10
    Electronic Resource
    Electronic Resource
    Problems Interpreting Samples Taken with Large-Volume, Falling-Suction Soil-Water Samplers (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 24 (1986), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: Chemical data resulting from sampling heterogeneous, variably saturated soils with large-volume, falling-suction samplers must be cautiously interpreted. Nitrate and chromium data from a tannery waste-disposal project illustrate the difficulties in distinguishing chemical and physical effects of sampling procedures from natural variability. Dramatically different interpretations of soil-water chemistry can result if precipitation in the porous cup or influence of the sampler on the soil-fluid flow is ignored. Additional laboratory studies are needed to assess adsorption on and screening of trace metals by the porous cup of the sampler. In the field, redox conditions as well as pH should be carefully monitored, soil structure noted, and pore-size distribution quantified. Use of numerical simulations could aid in planning monitoring strategies and interpreting results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1986.tb01692.x
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