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Evaluating Igneous
Activity at Yucca Mountain,
Technical Basis for
Decisionmaking (NUREG-1890)
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Publication Information
Manuscript Completed: February 2008
Date Published: February 2008
Prepared by
W.J. Hinze1, B.D. Marsh2, R.F. Weiner1, N.M. Coleman1
2Johns Hopkins University
3400 North Charles Street
Baltimore, MD 21218
1Advisory Committee on Nuclear Waste and Materials
Availability
Notice
Abstract
Eighty thousand years ago a small-volume basaltic volcano, the Lathrop Wells volcano,
erupted about 20 kilometers south of the Department of Energy’s proposed high-level nuclear
waste repository at Yucca Mountain, Nevada. Lathrop Wells is one of a series of infrequent
basaltic volcanoes that have occurred near the proposed repository site during the past 10
million years. This report presents the Advisory Committee on Nuclear Waste and Materials
(ACNW&M) summary and analysis of the range of current technical views on the nature,
likelihood, and potential consequences of future igneous activity at the proposed repository.
This report responds to the request of the U.S. Nuclear Regulatory Commission in Staff
Requirements Memorandum M06011B, February 9, 2006. The technical views have been
abstracted from published literature and public agency reports and presentations. The
alternative views reflect uncertainties of the igneous processes that have occurred in the region
and those that are likely to occur in the future, as well as the interaction of these processes with
the proposed repository. Analysis of the views and observations is based on professional
judgment and quantitative considerations within the scope of the resources available to
ACNW&M.
Paperwork Reduction Act Statement
This NUREG does not contain information collection requirements and, therefore, is not subject
to the requirements of the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.).
Public Protection Notification
The NRC may not conduct or sponsor, and a person is not required to respond to, a request for
information or an information collection requirement unless the requesting document displays a
currently valid OMB control number.
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