Remedy Selection at Superfund Sites PDF Download

Author: Kerry Beaumont Weller
Publisher:
ISBN:
Category : Hazardous waste site remediation
Languages : en
Pages : 98

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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: Peter T. Katsumata
Publisher:
ISBN:
Category :
Languages : en
Pages : 668

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Author: U S Environmental Protection Agency
Publisher: CreateSpace
ISBN: 9781500641856
Category :
Languages : en
Pages : 46

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The U.S. Environmental Protection Agency (EPA) prepared the Superfund Remedy Report (SRR) 14th Edition to provide information and analyses on remedies selected to address contamination at Superfund sites. The EPA is particularly interested in documenting and disseminating information on innovative treatment technologies that advance its mission of protecting human health and the environment at contaminated sites. This report is the latest in a series, prepared since 1991, on Superfund remedy selection. The SRR 14th Edition focuses on the analysis of Superfund remedial actions from fiscal years (FY) 2009 to 2011. The report includes remedies selected in 459 decision documents signed in this three-year period. These documents include 361 Records of Decision (RODs) and ROD amendments, and 98 Explanations of Significant Differences (ESDs). Only ESDs that included changes to remedy components were included in this analysis. The SRR compiles data on overall remedy selection and on remedies for source materials (such as soil and sediments), groundwater and air related to vapor intrusion. The report also analyzes characteristics of sites under investigation that do not yet have a decision document. In the most recent period (FY 2009 to 2011), about 40 percent of all decision documents addressed only sources, 20 percent addressed only contaminated groundwater, and 25 percent addressed both. The remainder included other remedies, such as mitigation of vapor intrusion or specified no action/no further action. Treatment, on-site containment, and off- site disposal of contaminated source media and groundwater were selected at nearly the same rate as in the previous timeframe evaluated (FY 2005 to 2008). Overall, remedies included a mix of approaches, primarily treatment; on-site containment; off-site disposal; monitored natural attenuation (MNA) or recovery (MNR); and institutional controls (ICs). Decision documents selecting only ICs were found to be for sites that had previous remedial or removal actions.

Author: James F. Donaghy
Publisher: DIANE Publishing
ISBN: 9780788147913
Category :
Languages : en
Pages : 60

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Superfund cleanup timing has been a long-standing concern of the Congress & EPA. In the Superfund Amendments & Reauthorization Act of 1986, the Congress set time goals for EPA & federal agencies to evaluate individual nonfederal & federal sites for placement on the National Priorities List (NPL) & begin various cleanup actions. In 1992, EPA introduced several initiatives designed to expedite Superfund cleanups. This report examines trends in the time taken to evaluate & process hazardous waste sites for possible placement on the NPL & to clean up these sites following their listing. Tables & graphs.

Author:
Publisher:
ISBN:
Category : Environmental policy
Languages : en
Pages : 232

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Author: United States. Environmental Protection Agency. Office of Research and Development
Publisher:
ISBN:
Category : Hazardous wastes
Languages : en
Pages :

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Author: United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Superfund, Waste Control, and Risk Assessment
Publisher:
ISBN:
Category : Environmental law
Languages : en
Pages : 904

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Author: James F. Donaghy
Publisher: DIANE Publishing
ISBN: 9780788179051
Category : Technology & Engineering
Languages : en
Pages : 117

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The Comprehensive Environmental Response, Compensation, and Liability Act of 19870 (CERCLA) authorizes the Environmental Protection Agency to identify severely contaminated hazardous waste sites and place them on the National Priorities List for cleanup under the Superfund program. This report (1) determines the progress the Superfund program has made in selecting remedies at both federal and nonfederal sites; (2) verifies the accuracy of the information in the Superfund database on sites' cleanup progress; and (3) determines the number of cleanup projects that cannot be started in FY1998 because of a lack of funding. Charts and tables.

Author: United States. Environmental Protection Agency. Office of Emergency and Remedial Response
Publisher:
ISBN:
Category : Hazardous substances
Languages : en
Pages : 160

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