Long-Term Institutional Management of U.S. Department of Energy Legacy Waste Sites (2000) / Chapter Skim
Currently Skimming:
2 Conceptual Framework
2 Conceptual Framework
Pages 18-24
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 18... ...
GENERAL REQUIREMENTS The committee's conceptual framework embodies the considerations that must be taken into account for planning remediation and stewardship activities at individual sites. In all cases reviewed by the committee, current DOE remediation planning and planning for post-remediation site stewardship can fit within the conceptual framework.
|
From page 19... ...
Stewardship measures (Chapter 5) include measures to maintain contaminant isolation and reduction technologies and to monitor the migration and attenuation of residual contaminants, as well as such measures as land use and access restrictions (institutional controls)
|
From page 20... ...
is intended to represent the wide range of contamination characteristics present between and within sites that will drive decisions toward determining the appropriate balance of reliance to be placed on contaminant reduction, contaminant isolation, and stewardship measures, given site characteristics. The legs of the stool in Figure 2 support a seat that symbolizes a planned end state, which may or may not be
|
From page 21... ...
The effect of cleanup proceeding this way is to produce a relatively clean site with pockets that may remain contaminated and therefore in need of institutional management into the indefinite future. The larger sites within the DOE defense complex appear to be evolving toward a "Swiss cheese" configuration, which while potentially able to support multiple uses in land areas where successful contaminant reduction or the lack of contamination in the first place enables unrestricted use, may also present challenges for ongoing management efforts in other areas where stewardship measures are required because residual contamination persists and represents a hazard.
|
From page 22... ...
But major decisions remain to be made on the disposition of the reactors in the 100 Area as a group. Current options range from permanent entombment in place (following removal of the reactor cores to permanent disposal in the 200 Area, the Hanford Site's central waste management area)
|
From page 23... ...
At Hanford, some 85 square miles of the site are underlain by contaminated groundwater that currently does not meet drinking water standards (U.S.
|
From page 24... ...
The inability to foresee future land use, possible failure of containment barriers or other remediation technologies or development of better ones, or the character of future society, are all factors that point to the need for building adaptability and flexibility into current site remediation planning. Adaptive and flexible approaches can take a wide variety of forms (for example, the Hanford Site reactor "interim safe storage", see Sidebar 2-1~.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.