Alternatives for Managing the Nation's Complex Contaminated Groundwater Sites
Alternatives for Managing the Nation's Complex Contaminated Groundwater Sites

Author: National Research Council

Publisher: National Academies Press

Published: 2013-02-27

Total Pages: 423

ISBN-13: 0309278139

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Across the United States, thousands of hazardous waste sites are contaminated with chemicals that prevent the underlying groundwater from meeting drinking water standards. These include Superfund sites and other facilities that handle and dispose of hazardous waste, active and inactive dry cleaners, and leaking underground storage tanks; many are at federal facilities such as military installations. While many sites have been closed over the past 30 years through cleanup programs run by the U.S. Department of Defense, the U.S. EPA, and other state and federal agencies, the remaining caseload is much more difficult to address because the nature of the contamination and subsurface conditions make it difficult to achieve drinking water standards in the affected groundwater. Alternatives for Managing the Nation's Complex Contaminated Groundwater Sites estimates that at least 126,000 sites across the U.S. still have contaminated groundwater, and their closure is expected to cost at least $110 billion to $127 billion. About 10 percent of these sites are considered "complex," meaning restoration is unlikely to be achieved in the next 50 to 100 years due to technological limitations. At sites where contaminant concentrations have plateaued at levels above cleanup goals despite active efforts, the report recommends evaluating whether the sites should transition to long-term management, where risks would be monitored and harmful exposures prevented, but at reduced costs.

Management Information Systems
Management Information Systems

Author: Kenneth C. Laudon

Publisher: Pearson Educación

Published: 2004

Total Pages: 618

ISBN-13: 9789702605287

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Management Information Systems provides comprehensive and integrative coverage of essential new technologies, information system applications, and their impact on business models and managerial decision-making in an exciting and interactive manner. The twelfth edition focuses on the major changes that have been made in information technology over the past two years, and includes new opening, closing, and Interactive Session cases.

A History of Army Aviation 1950-1962
A History of Army Aviation 1950-1962

Author: Richard P. Weinert

Publisher: www.Militarybookshop.CompanyUK

Published: 2011

Total Pages: 0

ISBN-13: 9781780391311

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U.S. Army aviation expanded dramatically in both size and breadth of activities after its inception in 1942, but much of its post-World War II history, particularly after the establishment of the Air Force as an independent service by the national Security Act of 1947, has been relatively neglected. Despite a certain amount of jockeying for position by both services, particularly in the early years after their separation, the Army was able to carve out a clear transport and operational combat role for its own air arm. "A History of Army Aviation - 1950-1962" examines the development of the Army's air wing, especially for air support of ground troops, both in terms of organization and in relation to the ongoing friction with the Air Force. After describing the rapid expansion of purely Army air power after 1950 and the accompanying expansion of aviation training, the book delves into the reorganization of aviation activities within a Directorate of Army Aviation. It also provides a valuable account of the successful development of aircraft armament, perhaps the most significant advance of this period. In particular, intensive experimentation at the Army Aviation School led to several practical weapons systems and helped to prove that weapons could be fired from rotary aircraft. This arming of the helicopter was to have a profound effect on both Army organization and combat doctrine, culminating in official approval of the armed helicopter by the Department of the Army in 1960. "A History of Army Aviation - 1950-1962" also explores the development of new aircraft between 1955 and 1962, including the UH-1 medical evacuation, transport, and gunship helicopter and the HC-1 cargo copter. In addition, the book discusses the Berlin Crisis of 1961 as an impetus for immediate and unexpected expansion of army aviation, quickly followed by the beginnings of intervention in Vietnam by the end of 1962.

Values in Heritage Management
Values in Heritage Management

Author: Erica Avrami

Publisher: Getty Publications

Published: 2019-12-03

Total Pages: 259

ISBN-13: 1606066188

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Bringing together leading conservation scholars and professionals from around the world, this volume offers a timely look at values-based approaches to heritage management. Over the last fifty years, conservation professionals have confronted increasingly complex political, economic, and cultural dynamics. This volume, with contributions by leading international practitioners and scholars, reviews how values-based methods have come to influence conservation, takes stock of emerging approaches to values in heritage practice and policy, identifies common challenges and related spheres of knowledge, and proposes specific areas in which the development of new approaches and future research may help advance the field.

Airlines and Air Mail
Airlines and Air Mail

Author: F. Robert van der Linden

Publisher: University Press of Kentucky

Published: 2014-07-11

Total Pages: 366

ISBN-13: 081314938X

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Conventional wisdom credits only entrepreneurs with the vision to create America's commercial airline industry and contends that it was not until Roosevelt's Civil Aeronautics Act of 1938 that federal airline regulation began. In Airlines and Air Mail, F. Robert van der Linden persuasively argues that Progressive republican policies of Herbert Hoover actually fostered the growth of American commercial aviation. Air mail contracts provided a critical indirect subsidy and a solid financial foundation for this nascent industry. Postmaster General Walter F. Brown used these contracts as a carrot and a stick to ensure that the industry developed in the public interest while guaranteeing the survival of the pioneering companies. Bureaucrats, entrepreneurs, and politicians of all stripes are thoughtfully portrayed in this thorough chronicle of one of America's most resounding successes, the commercial aviation industry.

Deep Cut
Deep Cut

Author: Christine Keiner

Publisher: University of Georgia Press

Published: 2020-08

Total Pages: 275

ISBN-13: 0820358630

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HISTORY / Modern / 20th Century; SCIENCE / History; TECHNOLOGY & ENGINEERING / History.