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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

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

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

State policies and requirements for management of uranium mining and milling in New Mexico. Volume IV. The supply of electric power and natural gas fuel as possible constraints on uranium production

Description: The report contained in this volume considers the availability of electric power to supply uranium mines and mills. The report, submited to Sandia Laboratories by the New Mexico Department of Energy and Minerals (EMD), is reproduced without modification. The state concludes that the supply of power, including natural gas-fueled production, will not constrain uranium production.
Date: April 1, 1980
Creator: Page, G.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Uranium recovery research sponsored by the Nuclear Regulatory Commission at Pacific Northwest Laboratory. Quarterly progress report, January-March 1982. Interim report

Description: Pacific Northwest Laboratory (PNL) has in progress several discrete investigations for the US Nuclear Regulatory Commission (NRC) concerned with process wastes during the active life of uranium mills and during an extended period following their shutdown. The overall objective of this research is to provide NRC and their licensees with technical guidance on several issues related to management of wastes from uranium mills and in situ recovery operations. Principal issues addressed in these stud… more
Date: April 1, 1982
Creator: Schwendiman, L. C.; Gee, G. W.; Hartley, J. N.; Mishima, J.; Sherwood, D. R.; Silker, W. B. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Field and modeling study of windblown particles from a uranium mill tailings pile. Interim report

Description: A field study is reported, showing that for a carbonate-leach-process mill tailings pile in the Grants, New Mexico region much of the residual radioactive constituents in the tailings is found associated with particles 7 ..mu..m in diameter and smaller. As the tailings material dries, particle attachment and aggregation occurs with the result that radioactive constituents become associated more with larger particles. Soil samples taken at surface and subsurface on radial lines extending from th… more
Date: April 1, 1979
Creator: Schwendiman, L. C.; Sehmel, G. A.; Horst, T. W.; Thomas, C. W. & Perkins, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Depleted uranium valuation

Description: The following uses for depleted uranium were examined to determine its value: a substitute for lead in shielding applications, feed material in gaseous diffusion enrichment facilities, feed material for an advanced enrichment concept, Mixed Oxide (MOx) diluent and blanket material in LMFBRs, and fertile material in LMFBR systems. A range of depleted uranium values was calculated for each of these applications. The sensitivity of these values to analysis assumptions is discussed. 9 tables.
Date: April 1, 1979
Creator: Lewallen, M.A.; White, M.K. & Jenquin, U.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radon attenuation handbook for uranium mill tailings cover design

Description: This handbook has been prepared to facilitate the design of earthen covers to control radon emission from uranium mill tailings. Radon emissions from bare and covered uranium mill tailings can be estimated from equations based on diffusion theory. Basic equations are presented for calculating surface radon fluxes from covered tailings, or alternately, the cover thicknesses required to satisfy a given radon flux criterion. Also described is a computer code, RAECOM, for calculating cover thicknes… more
Date: April 1, 1984
Creator: Rogers, V. C.; Nielson, K. K. & Kalkwarf, D. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Design for planning the cleanup of formerly used radium-contaminated sites

Description: The decontamination and decommissioning of radium-contaminated facilities no longer in use have received increased attention in recent years. However, planning cost-effective cleanup solutions that are acceptable to the major groups concerned with nuclear waste management has proved to be a significant stumbling block. The decision maker must objectively and efficiently consider trade-offs between various concerns, choose an appropriate solution, and convince an uneasy public that properly deco… more
Date: April 1, 1978
Creator: Voelker, A. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Status of activities on the inactive uranium mill tailings sites remedial action program. Office of the Assistant Secretary for Environment

Description: This report on the status of the Office of Environment's program for inactive uranium mill tailings sites is an analysis of the current status and a forecast of future activities of the Office of Environment. The termination date for receipt of information was September 30, 1980. Aerial radiological surveys and detailed ground radiological assessments of properties within the communities in the vicinity of the designated processing sites in Canonsburg, Pennsylvania, Salt Lake City, Utah, and Bo… more
Date: April 1, 1981
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Materials measurement and accounting in an operating plutonium conversion and purification process. Phase I. Process modeling and simulation. [PUCSF code]

Description: A model of an operating conversion and purification process for the production of reactor-grade plutonium dioxide was developed as the first component in the design and evaluation of a nuclear materials measurement and accountability system. The model accurately simulates process operation and can be used to identify process problems and to predict the effect of process modifications.
Date: April 1, 1981
Creator: Thomas, C. C. Jr.; Ostenak, C. A.; Gutmacher, R. G.; Dayem, H. A. & Kern, E. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Long-Term Surveillance Plan for the Lowman, Idaho, Disposal Site. Revision 1

Description: The long-term surveillance plan (LTSP) for the Lowman, Idaho, Uranium Mill Tailings Remedial Action (UMTRA) Project disposal site describes the surveillance activities for the Lowman disposal site, which will be referred to as the Lowman site throughout this document. The US Department of Energy (DOE) will carry out these activities to ensure that the disposal cell continues to function as designed. The radioactive sands at the Lowman site were stabilized on the site. This final LTSP is being s… more
Date: April 1994
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 recycle uranium to UF/sub 6/

Description: A cost/benefit study was made to determine the cost and effectiveness of various radioactive waste (radwaste) treatment systems for decreasing the amount of radioactive materials released from a model recycle uranium conversion and uranium hexafluoride (UF/sub 6/) production plant and to determine the radiological impact (dose commitment) of the released radioactive materials on the environment. This study is designed to assist the US NRC in defining the term ''as low as reasonably achievable''… more
Date: April 1, 1977
Creator: Roddy, J. W.; 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

Environmental assessment of remedial action at the Maybell Uranium Mill Tailings Site near Maybell, Colorado. Revision 1

Description: The purpose of this environmental assessment (EA) is to evaluate the environmental impacts resulting from remedial action at the Maybell uranium mill tailings site near Maybell, Colorado. A biological assessment (Attachment 1) and a floodplain/wetlands attachments describe the proposed action, affected environment, and environmental impacts associated with the proposed remedial action, including impacts to threatened and endangered species listed or proposed for listing by the US Fish and Wildl… more
Date: April 1, 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental Assessment of Ground Water Compliance at the Naturita, Colorado, UMTRA Project Site

Description: This Environmental Assessment addresses the environmental effects of a proposed action and the no action alternative to comply with U.S. Environmental Protection Agency (EPA) ground water standards at the Naturita, Colorado, Uranium Mill Tailings Remedial Action Project site. In 1998, the U.S. Department of Energy (DOE) completed surface cleanup at the site and encapsulated the tailings in a disposal cell 15 miles northwest near the former town of Uravan, Colorado. Ground water contaminants of … more
Date: April 23, 2003
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fluorine disposal processes for nuclear applications

Description: A study was performed to determine the best method for disposing of waste fluorine in the effluent from a uranium oxide conversion facility. After reviewing the fluorine disposal literature and upon considering the nuclear safety constraints, it was determined that the two most promising processes were the fluidized alumina bed and the caustic scrubber. To obtain more design data for the latter process, a 3-stage, 5-in. I.D. spray tower was constructed and operated. This unit used a 10% potassi… more
Date: April 8, 1977
Creator: Netzer, W. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

U-AVLIS feed conversion using continuous metallothermic reduction of UF{sub 4}: System description and cost estimate

Description: The purpose of this document is to present a system description and develop baseline capital and operating cost estimates for commercial facilities which produced U-Fe feedstock for AVLIS enrichment plants using the continuous fluoride reduction (CFR) process. These costs can then be used together with appropriate economic assumptions to calculate estimated unit costs to the AVLIS plant owner (or utility customer) for such conversion services. Six cases are being examined. All cases assume that… more
Date: April 1, 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Acceleration of Field-Scale Bioreduction of U(VI) in a Shallow Alluvial Aquifer: Temporal and Spatial Evolution of Biogeochemistry

Description: Uranium mill tailings sites provide access to uranium-contaminated groundwater at sites that are shallow and low hazard, making it possible to address the following scientific objectives: (1) Determine the dominant electron accepting processes at field sites with long-term metal/rad contamination; (2) Define the biogeochemical transformations that may be important to either natural or accelerated bioremediation under field conditions; and (3) Examine the potential for using biostimulation (elec… more
Date: April 20, 2005
Creator: Long, Phil
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department
open access

Occupational exposures to uranium: processes, hazards, and regulations

Description: The United States Uranium Registry (USUR) was formed in 1978 to investigate potential hazards from occupational exposure to uranium and to assess the need for special health-related studies of uranium workers. This report provides a summary of Registry work done to date. The history of the uranium industry is outlined first, and the current commercial uranium industry (mining, milling, conversion, enrichment, and fuel fabrication) is described. This description includes information on basic pro… more
Date: April 1, 1981
Creator: Stoetzel, G. A.; Fisher, D. R.; McCormack, W. D.; Hoenes, G. R.; Marks, S.; Moore, R. H. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An assessment of potential hydrologic and ecologic impacts of constructing mitigation wetlands, Rifle, Colorado, UMTRA project sites

Description: This-assessment examines the consequences and risks that could result from the proposed construction of mitigation wetlands at the New and Old Rifle Uranium Mill Tailings Remedial Action (UMTRA) Project sites near Rifle, Colorado. Remediation of surface contamination at those sites is now under way. Preexisting wetlands at or near the Old and New Rifle sites have been cleaned up, resulting in the loss of 0.7 and 10.5 wetland acres (ac) (0.28 and 4.2 hectares [ha]) respectively. Another 9.9 ac (… more
Date: April 1, 1995
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental factors affecting long-term stabilization of radon suppression covers for uranium mill tailings

Description: Pacific Northwest Laboratory 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. To help determine design stresses for the tailings piles, environmental parameters are characterized for the five active uranium-producing regions on a site-specific basis. Only conventional uranium mills that are currently operating or that are scheduled to open in the mid 1980s are considered. Avail… more
Date: April 1, 1982
Creator: Young, J. K.; Long, L. W. & Reis, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Long-term surveillance plan for the Gunnison, Colorado, disposal site

Description: This long-term surveillance plan (LTSP) describes the U.S. Department of Energy`s (DOE) long-term care program for the Uranium Mill Tailings Remedial Action (UMTRA) Project Gunnison disposal site in Gunnison County, Colorado. The U.S. Nuclear Regulatory Commission (NRC) has developed regulations for the issuance of a general license for the custody and long-term care of UMTRA Project disposal sites in 10 CFR Part 40. The purpose of this general license is to ensure that the UMTRA Project dispos… more
Date: April 1, 1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiological surveillance of Remedial Action activities at the processing site, Ambrosia Lake, New Mexico, April 12--16, 1993. Final report

Description: The Uranium Mill Tailings Remedial Action (UMTRA) Project`s Technical Assistance Contractor (TAC) performed a radiological surveillance of the Remedial Action Contractor (RAC), MK-Ferguson and CWM Federal Environmental Services, Inc., at the processing site in Ambrosia Lake, New Mexico. The requirements and attributes examined during the audit were developed from reviewing working-level procedures developed by the RAC. Objective evidence, comments, and observations were verified based on invest… more
Date: April 1, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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