Download or read book Contaminants in the Subsurface written by National Research Council and published by National Academies Press. This book was released on 2005-04-23 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: At hundreds of thousands of commercial, industrial, and military sites across the country, subsurface materials including groundwater are contaminated with chemical waste. The last decade has seen growing interest in using aggressive source remediation technologies to remove contaminants from the subsurface, but there is limited understanding of (1) the effectiveness of these technologies and (2) the overall effect of mass removal on groundwater quality. This report reviews the suite of technologies available for source remediation and their ability to reach a variety of cleanup goals, from meeting regulatory standards for groundwater to reducing costs. The report proposes elements of a protocol for accomplishing source remediation that should enable project managers to decide whether and how to pursue source remediation at their sites.

Download or read book Alternatives for Managing the Nation s Complex Contaminated Groundwater Sites written by National Research Council and published by National Academies Press. This book was released on 2013-02-27 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Sediment Dredging at Superfund Megasites written by National Research Council and published by National Academies Press. This book was released on 2007-10-30 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Brownfields Redeveloping Environmentally Distressed Properties written by Harold J. Rafson and published by McGraw Hill Professional. This book was released on 1999-07-05 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most practical, up-to-date guide for turning Brownfields into Greenfields This ready-to-use, how-to manual--edited by active developers who have bought, remediated, and sold brownfields--gives you a commanding look at one of today's leading environmental issues. Filled with the latest hands-on tools, Harold and Robert Rafson's step-by-step book simplifies the task of removing the barriers to redevelopment that plague environmentally distressed properties. Brownfields goes beyond the legal and technical issues that preoccupy other current books, to focus on all the critical aspects of putting together a successful brownfields project--mortgages, marketing, and more. Complete with case studies drawn from the authors' own experience, this guide is required reading not just for owners or developers, but for every stakeholder--from environmental regulators, to bankers, realtors and prospective buyers.

Download or read book Chemicals as Intentional and Accidental Global Environmental Threats written by Elisabeta Chirila and published by Springer Science & Business Media. This book was released on 2007-01-15 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: This multidisciplinary book presents a critical assessment of our knowledge of chemical threats to environmental security, with special reference to prevention of chemical releases, rapid detection, risk assessment and effective management of emergency situations and long-term consequences of chemical releases. The technologies evaluated concern mainly prevention and management of both intentional and accident releases of chemicals into the environment. The book features contributors from a range of relevant scientific fields.

Download or read book EPA 540 P written by and published by . This book was released on 1991 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conducting Remedial Investigations feasibility Studies for CERCLA Municipal Landfill Sites written by and published by . This book was released on 1991 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hanford Remedial Action Comprehensive Land use Plan Hanford Site in the Pasco Basin of the Columbia Plateau written by and published by . This book was released on 1999 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Feasibility Study for the Tonawanda Site Formerly Utilized Sites Remedial Action Program written by and published by . This book was released on 1993 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Weldon Spring Site Remedial Action written by and published by . This book was released on 1993 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book EPA 540 P written by and published by . This book was released on 1991 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book How to Effectively Recover Free Product at Leaking Underground Storage Tank Sites written by and published by . This book was released on 1996 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Guidance on RCRA Corrective Action Decision Documents written by United States. Office of Waste Programs Enforcement and published by . This book was released on 1991 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Superfund Risk Assessment in Soil Contamination Studies written by Keith B. Hoddinott and published by ASTM International. This book was released on 1998 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains ten papers presented at the January 1998 symposium on superfund risk assessment, held in San Diego, CA, and sponsored by ASTM committee D-18 on soil and rock. The papers provide state of the art information on conducting risk assessments for complex sites, and are grouped into three categor

Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Guidance on Remedial Actions for Contaminated Ground Water at Superfund Sites written by CH2M Hill Southeast, inc and published by . This book was released on 1989 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Principles and Practices of Occupational Safety and Health a Programmed Instruction Course Student Manual written by United States. Occupational Safety and Health Administration and published by . This book was released on with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: