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Interactions of tailings leachate with local liner materials found at Canonsburg, Pennsylvania.

Description: The mill tailings site at Canonsburg, Pennsylvania is the first mill site to receive remedial action under the Department of Energy's Uranium Mill Tailings Remedial Action Program. Part of this remedial action will require excavating the 53,500 m/sup 3/ (70,000 yd/sup 3/) of tailings on the site having a specific activity exceeding 100 pCi/g, and encapsulating these contaminated tailings in a clay-lined cell. As part of the remedial action effort, Pacific Northwest Laboratory has been studying … more
Date: April 1, 1984
Creator: Dodson, M.E.; Gee, G.W. & Serne, R.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental monitoring at major U. S. Energy Research and Development Administration contractor sites: calendar year 1976. Volume 2

Description: The purpose of this compilation is to present, in a central reference document, all of the individual annual reports summarizing the results of the environmental monitoring programs conducted at each of the Energy Research and Development Administration (ERDA) sites having a potential for environmental impact or which release a significant quantity of radioactivity or nonradioactive pollutants. Data on the levels of radioactivity and nonradioactive pollutants in effluents and the environs at ea… more
Date: August 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Measurements of /sup 234/U, /sup 238/U and /sup 230/Th in excreta of uranium-mill crushermen

Description: Uranium and thorium levels in excreta of uranium mill crushermen who are routinely exposed to airborne uranium ore dust were measured. The purpose was to determine whether /sup 230/Th was preferentially retained over either /sup 234/U or /sup 238/U in the body. Urine and fecal samples were obtained from fourteen active crushermen with long histories of exposure to uranium ore dust, plus four retired crushermen and three control individuals for comparison. Radiochemical procedures were used to s… more
Date: July 1, 1982
Creator: Fisher, D. R.; Jackson, P. O.; Brodacynski, G. G. & Scherpelz, R. I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Long-term protection of uranium mill tailings

Description: US Environmental Protection Agency standards for the cleanup and disposal of inactive tailings sites require that control measures for disposal of tailings be designed to be effective for up to 1000 years if reasonably achievable, and, in any case, for 200 years at least. To control the escape of contaminants over such long periods, containment systems must be capable of adjusting to changing environmental conditions. Elements of a containment system include surface covers, biotic barriers, rad… more
Date: April 1, 1984
Creator: Beedlow, P. A. & Hartley, J. N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Asphalt Emulsion Radon Barrier Systems for Uranium Mill Tailings: An Overview of the Technology

Description: Pacific Northwest Laboratory (PNL), under contract to the US Department of Energy (DOE) Uranium Mill Tailings Remedial Action Project (UMTRAP) office, has developed an asphalt emulsion cover system to reduce the release of radon from uranium mill tailings. The system has been field tested at Grand Junction, Colorado. Results from laboratory and field tests indicate that this system is effective in reducing radon release to near-background levels (<2.5 pCi m/sup -2/s/sup -1/) and has the propert… more
Date: March 1, 1984
Creator: Baker, E.G.; Hartley, J.N.; Freeman, H.D.; Gates, T.E.; Nelson, D.A. & Dunning, R.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Assessment of U. S. domestic capacity for producing reactor-grade thorium dioxide and controlling associated wastes and effluents

Description: Demand for reactor-grade ThO/sub 2/ is likely to increase as a result of the growing interest in the application of the thorium-uranium fuel cycle to nuclear reactors. The wastes and effluents identified with the production of ThO/sub 2/ from monazite sand are waste water, tailings, dust, smoke and gas, and radionuclides (primarily, /sup 232/Th and /sup 226/Ra). There are currently an estimated 1,500 short tons of crude thorium hydroxide byproduct that can be readily converted to reactor-grade … more
Date: February 1, 1978
Creator: Enderlin, W.I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Summary of the engineering assessment of inactive uranium-mill tailings: Canonsburg Site, Canonsburg, Pennsylvania

Description: Ford, Bacon and Davis Utah Inc. has evaluated the Canonsburg site in order to assess the problems resulting from the existence of radioactive residues at Canonsburg, Pennsylvania. This engineering assessment has included the preparation of topographic maps, radiometric measurements sufficient to determine areas and volumes of tailings and radiation exposures of individuals and nearby populations, the investigations of site hydrology and meteorology, and the evaluation and costing of alternative… more
Date: April 1, 1982
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

State policies and requirements for management of uranium mining and milling in New Mexico. Volume V. State policy needs for community impact assistance

Description: The report contained in this volume describes a program for management of the community impacts resulting from the growth of uranium mining and milling in New Mexico. The report, submitted to Sandia Laboratories by the New Mexico Department of Energy and Minerals, is reproduced without modification. The state recommends that federal funding and assistance be provided to implement a growth management program comprised of these seven components: (1) an early warning system, (2) a community planni… more
Date: April 1, 1980
Creator: Vandevender, S.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Field testing of fugitive dust control techniques at a uranium mill tailings pile - 1982 Field Test, Gas Hills, Wyoming.

Description: A field test was conducted on a uranium tailings pile to evaluate the effectiveness of 15 chemical stabilizers for control of fugitive dust from uranium mill tailings. A tailings pile at the Federal American Partners (FAP) Uranium Mill, Gas Hills, Wyoming, was used for the field test. Preliminary laboratory tests using a wing tunnel were conducted to select the more promising stabilizers for field testing. Fourteen of the chemical stabilizers were applied with a field spray system pulled behind… more
Date: December 1, 1983
Creator: Elmore, M.R. & Hartley, J.N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Long-term survivability of riprap for armoring uranium-mill tailings and covers: a literature review. [203 references]

Description: Pacific Northwest Laboratory (PNL) is investigating the use of a rock armoring blanket (riprap) to mitigate wind and water erosion of an earthen radon suppression cover applied to uranium mill tailings. Because the radon suppression cover and the tailings must remain intact for up to 1000 years or longer, the riprap must withstand natural weathering forces. This report is a review of information on rock weathering and riprap durability. Chemical and physical weathering processes, rock character… more
Date: June 1, 1982
Creator: Lindsey, C. G.; Long, L. W. & Begej, C. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Engineering assessment of inactive uranium mill tailings, Rifle Site, Rifle, Colorado. Summary of the Phase II, Title I

Description: Ford, Bacon and Davis Utah Inc. has performed an engineering assessment of the problems resulting from the existence of radioactive uranium mill tailings at Rifle, Colorado. The Phase II - Title I services include the preparation of topographic maps, the performance of core drillings and radiometric measurements sufficient to determine areas and volumes of tailings and other radium-contaminated materials, the evaluation of resulting radiation exposures of individuals and nearby populations, the… more
Date: October 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental monitoring program for DOE Middlesex, New Jersey site

Description: The Middlesex Sampling Plant Site (MSPS) is a United States Department of Energy (DOE) owned facility formerly used for processing and storage of radioactive materials, and currently utilized for interim storage of low level radioactive residues resulting from the cleanup of surrounding properties. The site occupies 9.61 acres of industrial property at 239 Mountain Avenue in the Borough of Middlesex, New Jersey. As a result of work done at the site from 1943 to 1955, in processing uranium and t… more
Date: October 1, 1981
Creator: Poff, T.A.; Brown, J.A. & Ficker, C.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Moisture content analysis of covered uranium mill tailings

Description: The use of vegetation and rock covers to stabilize uranium mill tailings cover systems is being investigated by Pacific Northwest Laboratory. A modeling study of moisture movement through the tailings and cover layers was initiated to determine the effect of the stabilizing techniques. The cover system was simulated under climatic conditions occurring at Grand Junction, Colorado. The cover consisted of a layer of wet clay/gravel mix followed by a capillary barrier of washed rock and a surface l… more
Date: December 1, 1981
Creator: Mayer, D. W.; Beedlow, P. A. & Cadwell, L. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Revegetation/rock cover for stabilization of inactive uranium mill tailings disposal sites

Description: Pacific Northwest Laboratory is developing design and performance guidelines for surface stabilization of inactive uranium mill tailings. In this work, vegetation and rock covers are being evaluated for maintaining long-term integrity of impoundment systems. Methods are being developed to estimate erosion rates associated with rock and/or vegetation covers, and to determine the effects of surface treatments on soil moisture. Interactions between surface treatments and barriers (radon and biolog… more
Date: July 1, 1982
Creator: Beedlow, P. A.; McShane, M. C. & Cadwell, L. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiological survey of the inactive uranium-mill tailings at Ambrosia Lake, New Mexico

Description: The inactive uranium-mill tailings pile at Ambrosia Lake, New Mexico, contains approximately 1520 Ci of /sup 226/Ra in 2.4 million metric tons of tailings covering an area of 43 hectares. All of the former mill buildings were intact and, at the time of this survey, several were in use. The tailings have not been stabilized, but the crusty surface is reported to be resistant to wind erosion. The average gamma-ray exposure rate 1 m above the tailings is 720 ..mu..R/h while the average rate in the… more
Date: June 1, 1980
Creator: Haywood, F. F.; Christian, D. J.; Ellis, B. S.; Hubbard Jr., H. M.; Lorenzo, D. & Shinpaugh, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

International training course on implementation of state systems of accounting for and control of nuclear materials: proceedings

Description: This report incorporates all lectures and presentations at the International Training Course on Implementation of State Systems of Accounting for and Control of Nuclear Materials held June 3 through June 21, 1985, at Santa Fe and Los Alamos, New Mexico, and San Clemente, California. Authorized by the US Nuclear Non-Proliferation Act and sponsored by the US Department of Energy in cooperation with the International Atomic Energy Agency, the Course was developed to provide practical training in t… more
Date: June 1, 1986
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Engineering assessment of inactive uranium mill tailings: Monument Valley Site, Monument Valley, Arizona

Description: Ford, Bacon and Davis Utah Inc. has reevalated the Monument Valley site in order to revise the March 1977 engineering assessment of the problems resulting from the existence of radioactive uranium mill tailings at Monument Valley, Arizona. This engineering assessment has included the preparation of topographic maps, the performance of core drillings and radiometric measurements sufficient to determine areas and volumes of tailings and radiation exposure of individuals and nearby populations, th… more
Date: October 1, 1981
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Engineering assessment of inactive uranium mill tailings, Maybell Site, Maybell, Colorado. Summary of the Phase II, Title I

Description: Ford, Bacon and Davis Utah Inc. has performed an engineering assessment of the problems resulting from the existence of radioactive uranium mill tailings at Maybell, Colorado. The Phase II-Title I services include the preparation of topographic maps, the performance of core drillings sufficient to determine areas and volumes of tailings and radiometric measurements to determine radium-contaminated materials, the evaluation of resulting radiation exposures of individuals and nearby populations, … more
Date: October 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Risk assessment in the DOE Assurance Program for Remedial Action

Description: This document provides information obtained during the performance of risk assessment tasks in support of the Assurance Program for Remedial Action (APRA) sponsored by the Office of Operational Safety of the Department of Energy. We have presented a method for the estimation of projected health effects at properties in the vicinity of uranium mill tailing piles due to transported tailings or emissions from the piles. Because radon and radon daughter exposure is identified as the principal facto… more
Date: August 1, 1985
Creator: Marks, S.; Cross, F. T.; Denham, D. H.; Kennedy, W. E. & Stenner, R. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Correlation of radioactive waste treatment costs and the environmental impact of waste effluents in the nuclear fuel cycle: conversion of yellow cake to uranium hexafluoride. Part I. The fluorination-fractionation process

Description: A cost/benefit study was made to determine the cost and effectiveness of radioactive waste (radwaste) treatment systems for decreasing the release of radioactive materials and chemicals from a model uranium hexafluoride (UF/sub 6/) production plant using the fluorination-fractionation (dry hydrofluor) process, and to evaluate the radiological impact (dose commitment) of the released materials on the environment. This study is designed to assist in defining the term as low as is reasonably achie… more
Date: July 1, 1977
Creator: Sears, M. B.; Blanco, R. E.; Finney, B. C.; Hill, G. S.; Moore, R. E. & Witherspoon, J. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Uranium mill monitoring for natural fission reactors

Description: Isotopic monitoring of the product stream from operating uranium mills is proposed for discovering other possible natural fission reactors; aspects of their occurrence and discovery are considered. Uranium mill operating characteristics are formulated in terms of the total uranium capacity, the uranium throughput, and the dilution half-time of the mill. The requirements for detection of milled reactor-zone uranium are expressed in terms of the dilution half-time and the sampling frequency. Dete… more
Date: December 1, 1977
Creator: Apt, K.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy systems evaluation of potential for incidents having health or safety impact

Description: The paper discusses the results of safety surveys of Martin Marietta Energy Systems - operated nuclear facilities. The purpose was to identify potential incidents that could cause large numbers of casualties, evaluate existing prevention/response actions, and identify possible improvements. The survey findings indicate the potential for an accident with consequences similar to those at Bhopal, India, is essentially non-existent. (ACR)
Date: January 1, 1986
Creator: Speas, I.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Asphalt emulsion sealing of uranium mill tailings. 1979 annual report

Description: Uranium mill tailings are a source of low-level radiation and radioactive materials that may be released into the environment. Stabilization or disposal of these tailings in a safe and environmentally sound way is necessary to minimize radon exhalation and other radioactive releases. One of the most promising concepts for stabilizing uranium tailings is being investigated at the Pacific Northwest Laboratory: the use of asphalt emulsion to contain radon and other potentially hazardous materials … more
Date: June 1, 1980
Creator: Hartley, J. N.; Koehmstedt, P. L.; Esterl, D. J. & Freeman, H. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of potential radiation-induced genetic and somatic effects to man from milling of uranium

Description: Potential mortality from natural causes and from radiation exposure conditions typical of those in the vicinity of uranium mills in the western USA was calculated. The exposure conditions were those assumed to exist in the vicinity of a hypothetical model mill. Dose rates to organs at risk were calculated as a function of time using the Uranium Dispersion and Dosimetry Code (Momeni et al. 1979). The changes in population size, birth rates, and radiation-induced and natural mortalities were calc… more
Date: January 1, 1984
Creator: Momeni, M. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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