SYMPOSIA PAPER Published: 01 January 1992
STP19572S

Contributions of Lysimeter Data to the Development of Site Specific Performance Assessment Plans

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Accurate data on the long-term performance of radioactive wastes in a disposal system are becoming a necessity in part because of restrictive federal and state regulations that are being promulgated. Data on the performance of buried radioactive waste forms can be obtained from lysimeter arrays. Lysimeters are ideal instruments for the acquisition of actual field test data. When properly designed and operated, lysimeters can be used to isolate and then study soil/waste systems under actual environmental conditions. The complexity of interactions occurring under field conditions can never be completely duplicated by standard laboratory testing. This paper provides data from two instrumented, operational lysimeter arrays containing waste forms fabricated with highly loaded exchange resin materials. The lysimeters have been in operation for five years and have been providing data for both meteorological events and radionuclide content of percolating water for the past four years. This paper provides data obtained from the lysimeters, a discussion of the data, and a manipulation of the database for calculating some code parameters that can be used as input into codes used to verify performance of buried radioactive waste forms.

Author Information

Rogers, RD
Biotechnology and Waste Management Programs, Idaho National Engineering Laboratory, Idaho Falls, ID
McConnell, JW
Biotechnology and Waste Management Programs, Idaho National Engineering Laboratory, Idaho Falls, ID
Jastrow, JD
Argonne National Laboratory, Argonne, IL
Wickliff, DS
Oak Ridge National Laboratory, Oak Ridge, TN
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Details
Developed by Committee: D34
Pages: 448–465
DOI: 10.1520/STP19572S
ISBN-EB: 978-0-8031-5186-4
ISBN-13: 978-0-8031-1443-2