The Office of Environmental Management Technical Reports PDF Download

Author:
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ISBN:
Category : Environmental management
Languages : en
Pages : 972

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Author:
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ISBN:
Category : Environmental management
Languages : en
Pages : 968

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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309278139
Category : Nature
Languages : en
Pages : 423

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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.

Author: Sharon E. Kroening
Publisher:
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Category : Earth sciences
Languages : en
Pages : 122

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Category : Health risk assessment
Languages : en
Pages : 414

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Category : Anadromous fishes
Languages : en
Pages : 152

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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309134102
Category : Science
Languages : en
Pages : 316

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Some of the nation's estuaries, lakes and other water bodies contain contaminated sediments that can adversely affect fish and wildlife and may then find their way into people's diets. Dredging is one of the few options available for attempting to clean up contaminated sediments, but it can uncover and re-suspend buried contaminants, creating additional exposures for wildlife and people. At the request of Congress, EPA asked the National Research Council (NRC) to evaluate dredging as a cleanup technique. The book finds that, based on a review of available evidence, dredging's ability to decrease environmental and health risks is still an open question. Analysis of pre-dredging and post-dredging at about 20 sites found a wide range of outcomes in terms of surface sediment concentrations of contaminants: some sites showed increases, some no change, and some decreases in concentrations. Evaluating the potential long-term benefits of dredging will require that the U.S. Environmental Protection Agency step up monitoring activities before, during and after individual cleanups to determine whether it is working there and what combinations of techniques are most effective.

Author: A. J. Appleby
Publisher: Krieger Publishing Company
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 806

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Author: Department Army
Publisher: Createspace Independent Publishing Platform
ISBN: 9781973920519
Category :
Languages : en
Pages : 480

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This manual is a dual-Service US Army and US Marine Corps publication introducing new terms and definitions and updating existing definitions as reflected in the latest editions of Army field manuals and Marine Corps doctrinal, warfighting, and reference publications. It complies with DOD Military Standard 2525. When communicating instructions to subordinate units, commanders and staffs from company through corps should use this manual as a dictionary of operational terms and military graphics.

Author: Eva L. Davis
Publisher:
ISBN:
Category : Aquifers
Languages : en
Pages : 34

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