Data Catalog for Models Simulating Release of Contaminants from Hanford Site Waste Sources Page: 5 of 48
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Summary
Models have been used to simulate the transport and fate of contaminants at the Hanford Site to
assess the effectiveness of various environmental restoration and waste management activities and to
estimate impacts to environmental and human receptors. Part of the process includes the ability to
simulate the release to the vadose zone and groundwater of a wide range of contaminants from a wide
range of waste sources that have been generated at the Hanford Site as a result of over 40 years of defense
production activities.
Mathematical formulas that express the release of contaminants from various waste sources and their
application in past assessments are documented in many reports published over the past 14 years. The
sheer number of reports in which such information is reported makes it difficult for individuals to access
this information in a timely manner. To provide users carrying out Hanford assessments with improved
access to the information and data on release model capability, researchers at the Pacific Northwest
National Laboratory (PNNL) consolidated these sources of information and data into a single location.
This work was conducted under the Vadose Zone Groundwater Integration Project managed by Bechtel
Hanford Incorporated for the U.S. Department of Energy - Richland Operations (DOE-RL).
This report provides summaries of release models used in Hanford Site assessments published over
the past 14 years (1987 to 2001). Mathematical formulations that commonly have been used in recent
years (i.e., salt-cake, cement, soil-debris, reactor block, glass, and corrosion) are described, along with
associated parameter definitions and their units. Tables in this report provide links to data sources needed
to implement the models. These links enable users to quickly locate the specific release model informa-
tion and data sources they need for applying the models to future to site assessments.
During the compilation of the catalog, the authors became aware of significant differences in the level
of complexity of release models applied over the years to meet Hanford Site assessment objectives. For
example, release model capability to support the current 2001 ILAW performance assessment is far more
advanced than the simpler mathematical formulations for glass release used in prior assessments and
depicted in this report. We, therefore, encourage readers of this report to contact the individuals listed
in Table 1.1 of this report for possible additional up-to-date information in their area of interest.v
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Riley, Robert G. & Lopresti, Charles A. Data Catalog for Models Simulating Release of Contaminants from Hanford Site Waste Sources, report, September 26, 2001; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc928238/m1/5/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.