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Pre-sealing risk analysis

Description: This report describes studies of accidents involving high-level radioactive waste before sealing the waste into a repository. The report summarizes work done in this area during Fiscal Year 1978 and supplements previous work. Models of accident probability, severity, and consequences are refined and extended.
Date: January 7, 1980
Creator: Ensminger, D.A.; Hough, M.E. & Oston, S.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Determination of performance criteria for high-level solidified nuclear waste

Description: To minimize radiological risk from the operation of a waste management system, performance limits on volatilization, particulate dispersion, and dissolution characteristics of solidified high level waste must be specified. The results show clearly that the pre-emplacement environs are more limiting in establishing the waste form performance criteria than the post-emplacement environs. Absolute values of expected risk are very sensitive to modeling assumptions. The transportation and interim sto… more
Date: May 7, 1979
Creator: Heckman, R.A. & Holdsworth, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Environmental and biological behaviour of plutonium and some other transuranium elements

Description: The objectives are to summarize our knowledge of the way in which plutonium and some other transuranium elements migrate through ecosystems; to consider how the physiochemical state of these elements and the biological systems through which they pass may influence this movement; and to put into perspective the risks of serious illness in man resulting from his exposure to these elements in the environment.
Date: April 7, 1983
Creator: Richmond, C.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Responses to the low-level-radiation controversy

Description: Some data sets dealing with the hazards of low-level radiation are discussed. It is concluded that none of these reports, individually or collectively, changes appreciably or even significantly the evaluations of possible low-level radiation effects that have been made by several authoritative national and international groups. (ACR)
Date: October 7, 1981
Creator: Bond, V.P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Accident analysis and safety review of DOE Category B reactors

Description: DOE is employing the principle of comparability with the NRC requirements to guide its safety program. Since the safety record of research reactors licensed by the NRC has been established and accepted, the comparison of DOE Orders applicable to DOE research reactors with the NRC regulations applicable to research reactors would identify strengths and weaknesses of the DOE Orders. The comparison was made in 14 general topics of safety which are labeled Areas of Safety Concerns. This paper focus… more
Date: August 7, 1990
Creator: Kimura, C. Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

(Centralized reliability data organization for liquid metal reactor components)

Description: The Centralized Reliability Data Organization is a data bank and data analysis center, focusing on reliability, availability, and maintainability (RAM) data for components (e.g., valves, pumps, etc.) operating in liquid metal reactors and test facilities. PNC staff are using the CREDO data base as a resource for their development of a probabilistic safety assessment (PSA) for the MONJU fast breeder reactor now under construction. The meeting was held to discuss: (a) progress in FY 1989, (b) res… more
Date: February 7, 1991
Creator: Smith, M.S. & Manneschmidt, J.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ARAC: A flexible real-time dose consequence assessment system

Description: Since its beginning, the Atmospheric Release Advisory Capability (ARAC), an emergency radiological dose assessment service of the US Government, has been called on to do consequence assessments for releases into the atmosphere of radionuclides and a variety of other substances. Some of the more noteworthy emergency responses have been for the Three Mile Island and Chernobyl nuclear power reactor accidents, and more recently, for a cloud of gases from a rail-car spill into the Sacramento river o… more
Date: October 7, 1993
Creator: Ellis, J. S. & Sullivan, T. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Simulating Fine-Scale Atmospheric Processes: A New Core Capability and its Application to Predicting Wildfire Behavior

Description: This LDRD project consisted of the development, testing, and prototype application of a new capability to couple atmospheric models of different spatial and temporal scales with a state-of-the-science vegetation-fuel combustion model and a GIs-based analysis system. The research addressed the complex, multi-scale interactions of atmospheric processes, combustion, and vegetative fuel conditions, using a suite of models to simulate their impact on wildfire behavior in areas of complex terrain. Du… more
Date: February 7, 2003
Creator: Bradley, M M; Leach, M J; Molenkamp, C R; Hall, C H; Wilder, L & Neher, L A
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sources, Speciation and Mobility of Plutonium and Other Transuranics in the Groundwater at the Savannah River Site (Sept. 2003-Sept. 2006)

Description: The intent of this research effort is to: (1) provide the basis for accurate modeling and prediction of actinide transport; (2) allow for remediation strategies to be planned that might use in-situ manipulations of geochemical variables to enhance (for extraction) or retard (for immobilization) Pu mobility in the groundwater zone; (3) identify specific Pu sources and the extent of far field, or long-term migration of transuranics in groundwater; (4) reduce costly uncertainty in performance and … more
Date: November 7, 2006
Creator: Buesseler, K. O.; Kaplan, D.; Peterson, S. & Dai, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Human Health and Ecological Risk Assessment for the Operation of the Explosives Waste Treatment Facility at Site 300 of the Lawrence Livermore National Laboratory, Volume 1: Report of Results

Description: Human health and ecological risk assessments are required as part of the Resource Recovery and Conservation Act (RCRA) permit renewal process for waste treatment units. This risk assessment is prepared in support of the RCRA permit renewal for the Explosives Waste Treatment Facility at Site 300 of the Lawrence Livermore National Laboratory. The human health risk assessment is based on U.S. Environmental Protection Agency approved emissions factors and on California Environmental Protection Agen… more
Date: November 7, 2005
Creator: Gallegos, G M; Daniels, J I & Wegrecki, A M
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Application of Chemically Accelerated Biotreatment to Reduce Riskin Oil-Impacted Soils: Final Report

Description: The drilling and operation of gas/petroleum exploratory wells and the operations of natural gas and petroleum production wells generate a number of waste materials that are usually stored and/or processed at the drilling/operations site. Contaminated soils result from drilling operations, production operations, and pipeline breaks or leaks where crude oil and petroleum products are released into the surrounding soil or sediments. In many cases, intrinsic biochemical remediation of these contami… more
Date: January 7, 2003
Creator: Paterek, J.R.; W.W.Bogan; Trbovic, V. & Sullivan, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Risk-Based Management of Contaminated Groundwater: The Role of Geologic Heterogeneity, Exposure and Cancer Risk in Determining the Performance of Aquifer Remediation

Description: The effectiveness of aquifer remediation is typically expressed in terms of a reduction in contaminant concentrations relative to a regulated maximum contaminant level (MCL), and is usually confined by sparse monitoring data and/or simple model calculations. Here, the effectiveness of remediation is examined from a risk-based perspective that goes beyond the traditional MCL concept. A methodology is employed to evaluate the health risk to individuals exposed to contaminated household water that… more
Date: April 7, 2000
Creator: Maxwell, R. M.; Carle, S. F. & Tompson, A. F. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Site suitability criteria for solidified high level waste repositories

Description: Activities devoted to development of regulations, criteria, and standards for storage of solidified high-level radioactive wastes are reported. The work is summarized in sections on site suitability regulations, risk calculations, geological models, aquifer models, human usage model, climatology model, and repository characteristics. Proposed additional analytical work is also summarized. (JRD)
Date: March 7, 1979
Creator: Heckman, Richard A.; Holdsworth, Thomas & Towse, Donald F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Examples of the use of PRA in the design process and to support modifications

Description: Many, if not most, of the world`s commercial nuclear power plants have been the subject of plant-specific probabilistic safety assessments (PSAs). A growing number of other nuclear facilities as well as other types of industrial installations have been the focus of plant-specific PSAs. Such studies have provided valuable information concerning the nature of the fisk of the individual facility and have been utilized to identify opportunities to manage that risk. This paper explores the risk mana… more
Date: September 7, 1993
Creator: Johnson, D. H.; Bley, D. C.; Lin, J. C.; Schueller, J.; van Otterloo, R. W.; Ramsey, C. T. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A GRADED APPROACH TO FLOW AND TRANSPORT MODELING TO SUPPORT DECOMMISSIONING ACTIVITIES AT THE SAVANNAH RIVER SITE, AIKEN SC

Description: A graded approach to flow and transport modeling has been used as a cost effective solution to evaluating potential groundwater risk in support of Deactivation and Decommissioning activities at the United States Department of Energy's Savannah River Site. This approach incorporates both simple spreadsheet calculations and complex numerical modeling to evaluate the threat to human health posed by contaminants leaching from decommissioned concrete building slabs. Simple spread sheet calculations … more
Date: June 7, 2007
Creator: Dixon, Kenneth L.; Lee, Patricia L. & Flach, Gregory P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Preclosure seismic hazards and their impact on site suitability of Yucca Mountain, Nevada

Description: This paper presents an overview of the preclosure seismic hazards and the influence of these hazards on determining the suitability of Yucca Mountain as a national high-level nuclear-waste repository. Geologic data, engineering analyses, and regulatory guidelines must be examined collectively to assess this suitability. An environmental assessment for Yucca Mountain, written in 1986, compiled and evaluated the existing tectonic data and presented arguments to satisfy, in part, the regulatory re… more
Date: January 7, 1992
Creator: Gibson, J. Duane
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Tank waste remediation system tank waste retrieval risk management plan

Description: This Risk Management Plan defines the approach to be taken to manage programmatic risks in the TWRS Tank Waste Retrieval program. It provides specific instructions applicable to TWR, and is used to supplement the guidance given by the TWRS Risk Management procedure.
Date: November 7, 1997
Creator: Klimper, S.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Procedure for Prioritization of Natural Phenomena Hazards Evaluations for Existing DOE Facilities

Description: This document describes the procedure to be used for the prioritization for natural phenomena hazards evaluations of existing DOE facilities in conformance with DOE Order 5480.28, `Natural Phenomena Hazards Mitigation.`
Date: May 7, 1996
Creator: Conrads, T.J., Westinghouse Hanford
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Tank bump consequence analysis

Description: The purpose of this document is to derive radiological and toxicological consequences for a tank bump event based on analysis performed using the GOTH computer model, to estimate the mitigative effect of pump and sluice pit cover blocks, and to discuss preventative measures.
Date: August 7, 1996
Creator: Board, B.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Relative Hazard Calculation Methodology

Description: Prepared for the Office of Science and Risk Policy U.S. Department of Energy Office of Environmental Management And Center for Risk Excellence U.S. Department of Energy Chicago Operations Office Prepared by the Pacific Northwest National Laboratory Under Contract DE-AC06-76RLO 1830
Date: September 7, 1999
Creator: Stenner, Robert D; White, Michael K; Strenge, Dennis L & Andrews, William B
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Relative Hazard Calculation Methodology

Description: The methodology presented in this document was developed to provide a means of calculating the RH ratios to use in developing useful graphic illustrations. The RH equation, as presented in this methodology, is primarily a collection of key factors relevant to understanding the hazards and risks associated with projected risk management activities. The RH equation has the potential for much broader application than generating risk profiles. For example, it can be used to compare one risk managem… more
Date: September 7, 1999
Creator: Strenge, D. L.; White, M. K.; Stenner, R. D. & Andrews, W. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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