Long-Term Stewardship and Risk Management Strategies for Inactive Nuclear Test Sites in the United States

Author(s):  
D. S. Shafer ◽  
J. B. Chapman ◽  
A. E. Hassan ◽  
G. Pohll ◽  
K. F. Pohlmann ◽  
...  

Characterizing and managing groundwater contamination associated with the 828 underground nuclear tests conducted at the Nevada Test Site are among the most challenging environmental remediation issues faced by the U.S. Department of Energy. Although significant long-term stewardship and risk management issues are associated with underground nuclear tests on the Nevada Test Site, of possible equal concern are a smaller number of underground nuclear tests conducted by the United States, 12 total, at eight sites located off the Nevada Test Site. In comparison to the Nevada Test Site, the U.S. Department of Energy has minimal institutional controls at these “offsite test areas” (Offsites) to serve as risk barriers. The corrective action and closure strategy under development for the Central Nevada Test Area and proposed recommendations [1] concerning long-term stewardship for this and the other Offsites illustrate long-term stewardship and risk management strategies applicable to underground nuclear test areas in the United States. The groundwater flow and transport model for the Central Nevada Test Area, site of the 1968 Faultless underground nuclear test, is the first model accepted by a U.S. state regulator (the Nevada Division of Environmental Protection) for an underground nuclear test area. Recommendations for the Central Nevada Test Area and other Offsites include developing decision support models to evaluate the impacts of future changes of land and water uses on previous decisions involving groundwater-use restrictions. Particularly for the Offsites in arid states such as Nevada, New Mexico, and Colorado, it is difficult to envision all future demands on subsurface resources. Rather than trying to maintain complex flow and transport models to evaluate future resource-use scenarios, decision support models coupled with original contaminant flow and transport models could be used as scoping tools to evaluate the sensitivity of previously established resource-use boundaries. This evaluation will determine if the previously established boundaries are still adequate for proposed new land and resource uses or if additional data collection or modeling will be necessary to make technically sound decisions. In addition, previously developed Data Decision Analyses, used to quantitatively evaluate the costs and benefits of different data collection activities conducted during the site characterization phase, could be maintained as a long-term stewardship tool to identify new data collection efforts, if necessary as indicated by a decision support model.

Polar Record ◽  
2009 ◽  
Vol 45 (2) ◽  
pp. 133-146 ◽  
Author(s):  
Jennifer L. Benning ◽  
David L. Barnes ◽  
Joanna Burger ◽  
John J. Kelley

ABSTRACTAmchitka Island, Alaska, is a historical underground nuclear test site. Three underground tests were conducted there by the United States Atomic Energy Commission, now US Department of Energy (USDOE), between 1965 and 1971. These were Long Shot, an 80 kiloton detonation; Milrow, a 1 megaton detonation; and Cannikin, a 5 megaton detonation. Subsequent to these tests, several scientific assessments have been conducted regarding the impacts of the tests on the terrestrial and marine environments surrounding the island. However, many citizens and groups still voice concerns over the potential for detrimental effects on human and ecological health. In its responsibility for the long term protection of human and ecological health consequent to its nuclear programme, USDOE has recently prepared a plan for the long term surveillance and monitoring of the site. The purpose of this paper is to summarise the history of the island, specifically with regards to its use as a nuclear test site, to summarise the results of investigative activities following testing, to summarise USDOE's plan for surveillance and monitoring, and to offer the authors' viewpoints on the long term stewardship of the island. The authors deemed the stewardship plan to be essentially protective of human and ecological health; however, they recommend a stronger commitment to site oversight and review, as well as to future research, for addressing uncertainties remaining at the island.


2019 ◽  
Vol 79 (1) ◽  
pp. 244-274
Author(s):  
Keith Meyers

In the 1950s the United States conducted scores of atmospheric nuclear tests at the Nevada Test Site. This article studies the effects of radioactive fallout from nuclear tests on agriculture in regions hundreds of miles from the NTS. While research has shown that this radioactive material posed a health risk near the NTS, little is known about the direct economic effects nuclear testing may have had. I find that fallout from nuclear tests adversely affected U.S. agricultural production, and this result suggests that nuclear testing had a much broader economic and environmental impact than previously thought.


Author(s):  
Thomas Klammer ◽  
Neil Wilner ◽  
Jan Smolarski

Capital expenditures can be crucial to firms long-term success, especially in a complex global environment. As companies increasingly compete in the global market place, it is important to study project evaluation processes from an international perspective. Capital investments involve substantial monetary commitments and risks that affect long-term firm profitability and influence capital allocation decisions in the future. Survey research in the area of capital expenditure analysis has been extensively done in both the United States [US] and the United Kingdom [UK]. This research is the first comparative survey of practices in both countries that we are aware of. A direct comparison of the use of project evaluation, management science, and risk management techniques in the two countries is made. The survey instrument used is an adaptation of the Klammer [1970] instrument that has been used repeatedly in surveys of American firms. This is the first time that it has been applied to British firms. The use of a common instrument allows for more meaningful comparisons. The samples consisted of 127 American and 59 British firms with sales of at least $100 million and capital expenditures of at least $10 million. Preliminary results indicate a continued extensive use of discounted cash flow techniques by US firms. Techniques such as payback or urgency continue to be used, but to a lesser degree than discounting. Firms in the UK also make extensive use of discounting but do so to a lesser degree than their American counterparts. Payback is widely used in the UK. Risk management techniques are widely used in both countries, with sensitivity analysis being the most popular technique in both countries. Extensive use of technical and administrative procedures, such as detailed budgets, standardized forms and post-audits, are evidenced in both countries. The paper offers reasons that have to do with organizational structure and form, as well as market differences, to explain our results.


2021 ◽  
Author(s):  
Faith Ka Shun Chan ◽  
Liang Emlyn Yang ◽  
Gordon Mitchell ◽  
Nigel Wright ◽  
Mingfu Guan ◽  
...  

Abstract. Sustainable flood risk management (SFRM) has become popular since the 1980s. Many governmental and non-governmental organisations have been keen on implementing the SFRM strategies by integrating social, ecological and economic themes into their flood risk management (FRM) practices. However, justifications for SFRM are still embryonic and it is not yet clear whether this concept is influencing the current policies in different countries. This paper reviews the past and present flood management approaches and experiences from flood defence to FRM in four developed countries with the aim of highlighting lessons for developing mega deltas. The paper explored recent strategies such as “Making Space for Water, PPS 25, and NPPF” in the UK; “Room for Rivers” in the Netherlands which was promoted to cope with flooding, integrate FRM with ideas on sustainability, and deliver good FRM practice for next generations. The United States has also established a sound National Flood Insurance Program (NFIP), and Japan has developed an advanced flood warning and evacuation contingency system to prepare for climatic extremes. These case studies showed some good lessons to achieve long term SFRM direction to deliver flood management practices with social-economic and environmental concerns. Most of developing coastal megacities especially in Asia are still heavily reliant on traditional hard-engineering approach, that may not be enough to mitigate substantial risks due to human (exist huge populations, rapid socio-economic growth, subsidence) and natural (climate change) factors. We understand different countries and cities have their own interpretation on SFRM, but recommend policy makers to adopt “mixed options” towards thinking about long term and sustainability that with social, economic and environmental considerations. 


2020 ◽  
Vol 91 (3) ◽  
pp. 1488-1499 ◽  
Author(s):  
Brian A. Young ◽  
Robert E. Abbott

Abstract The Leo Brady Seismic Network (LBSN, originally the Sandia Seismic Network) was established in 1960 by Sandia National Laboratories to monitor underground nuclear tests (UGTs) at the Nevada National Security Site (NNSS, formerly named the Nevada Test Site). The LBSN has been in various configurations throughout its existence, but it has generally been comprised of four to six stations at regional distances (∼150–400  km) from the NNSS with approximately evenly spaced azimuthal coverage. Between 1962 and the end of nuclear testing in 1992, the LBSN—and a sister network operated by Lawrence Livermore National Laboratories—was the most comprehensive United States source of regional seismic data of UGTs. Approximately 75% of all UGTs performed by the United States occurred in the predigital era. At that time, LBSN data were transmitted as frequency-modulated (FM) audio over telephone lines to a central location and recorded as analog waveforms on high-fidelity magnetic audio tapes. These tapes have been in dry temperature-stable storage for decades and contain the sole record of this irreplaceable data; full waveforms of LBSN-recorded UGTs from this era were not routinely digitized or otherwise published. We have developed a process to recover and calibrate data from these tapes. First, we play back and digitize the tapes as audio. Next, we demodulate the FM “audio” into individual waveforms. We then estimate the various instrument constants through careful measurement of “weight-lift” tests performed prior to each UGT on each instrument. Finally, these coefficients allow us to scale and shape the derived instrument response of the seismographs and compute poles and zeros. The result of this process is a digital record of the recorded seismic ground motion in a modern data format, stored in a searchable database. To date, we have digitized tapes from 592 UGTs.


1962 ◽  
Vol 52 (5) ◽  
pp. 1057-1074 ◽  
Author(s):  
Carl Romney ◽  
Billy G. Brooks ◽  
Robert H. Mansfield ◽  
Dean S. Carder ◽  
James N. Jordan ◽  
...  

abstract gnome, an undergound nuclear explosion in salt near Carlsbad, New Mexico, produced seismic waves which were recorded widely throughout the United States and at a few foreign stations. The travel times of P were strongly dependent on the path of propagation, and were as much as 12 seconds earlier in the eastern United States than at equivalent distances in the western part of the United States. At the few stations more distant than 25°, P was about 2 seconds earlier than predicted by the Jeffreys-Bullen table for surface focus. Amplitudes of Pn were similarly dependent upon the path of propagation; although the measurements showed great scatter, amplitudes to the east were generally larger than those to the west. Pn travel time and amplitude anomalies suggest a systematic relationship to crustal thickness. There is evidence from the difference in the speeds and attenuation rates that Lg and P are not transmitted along analogous paths through the crust. Short period body waves were two or three times larger than expected from an explosion of the same energy in tuff at the Nevada Test Site. Surface waves, however, were relatively weak compared with explosions of similar yield in tuff.


2014 ◽  
Vol 1 (15) ◽  
pp. 97
Author(s):  
Warren J Brookbanks

<p align="LEFT">The purpose of this article is to assess the legitimacy of the preventive detention model represented by New Zealand's Parole (Extended Supervision) Amendment Act 2004 in light of the legislative response to sex offenders in other jurisdictions, notably the United States and England. It is argued that the growing legislative practice of imposing administrative detention post-sentence represents a dangerous trend in criminal justice and disguises a largely undeclared agenda to isolate and demonise sex offenders as a class. It also has implications for other offender groups who may be targeted because the particular class is perceived as presenting a particular type of risk. Since the empowering legislation is often passed in haste and without due consideration of its long term impacts, it bears the hallmarks of a pre-reflective, “at least we’re doing something,” response to the problem of sex offending. It also provides a context for pretextual and sanist judicial values to operate, permitting distorted and illinformed judicial decision-making, particularly where judges’ thinking is infected by populist punitive approaches. Invariably, such legislation and the policy surrounding it, fails completely to address fundamental causal patterns underlying sex offending phenomena.</p><p align="LEFT">It is suggested that in order to address these phenomena squarely, it will be necessary to abandon the current tendency towards isolating sex offenders and refocus our energy on traditional responses of retribution, reform and rehabilitation within conventional principles of criminal process.</p>


Author(s):  
Melissa A. Pierce

In countries other than the United States, the study and practice of speech-language pathology is little known or nonexistent. Recognition of professionals in the field is minimal. Speech-language pathologists in countries where speech-language pathology is a widely recognized and respected profession often seek to share their expertise in places where little support is available for individuals with communication disorders. The Peace Corps offers a unique, long-term volunteer opportunity to people with a variety of backgrounds, including speech-language pathologists. Though Peace Corps programs do not specifically focus on speech-language pathology, many are easily adapted to the profession because they support populations of people with disabilities. This article describes how the needs of local children with communication disorders are readily addressed by a Special Education Peace Corps volunteer.


Author(s):  
Federico Varese

Organized crime is spreading like a global virus as mobs take advantage of open borders to establish local franchises at will. That at least is the fear, inspired by stories of Russian mobsters in New York, Chinese triads in London, and Italian mafias throughout the West. As this book explains, the truth is more complicated. The author has spent years researching mafia groups in Italy, Russia, the United States, and China, and argues that mafiosi often find themselves abroad against their will, rather than through a strategic plan to colonize new territories. Once there, they do not always succeed in establishing themselves. The book spells out the conditions that lead to their long-term success, namely sudden market expansion that is neither exploited by local rivals nor blocked by authorities. Ultimately the inability of the state to govern economic transformations gives mafias their opportunity. In a series of matched comparisons, the book charts the attempts of the Calabrese 'Ndrangheta to move to the north of Italy, and shows how the Sicilian mafia expanded to early twentieth-century New York, but failed around the same time to find a niche in Argentina. The book explains why the Russian mafia failed to penetrate Rome but succeeded in Hungary. A pioneering chapter on China examines the challenges that triads from Taiwan and Hong Kong find in branching out to the mainland. This book is both a compelling read and a sober assessment of the risks posed by globalization and immigration for the spread of mafias.


2020 ◽  
Author(s):  
Joseph Matthews ◽  
Madhu Pandey

Propeller planes and small engine aircraft around the United States, legally utilize leaded aviation gasoline. The purpose of this experiment was to collect suspended particulate matter from a university campus, directly below an airport’s arriving flight path’s descent line, and to analyze lead content suspended in the air. Two collection sets of three separate samples were collected on six separate days, one set in July of 2018 and the second set in January 2019.


Sign in / Sign up

Export Citation Format

Share Document