Addendum to: Corrective Action Decision Document/Corrective Action Plan (CADD/CAP)
- US Department of Energy (USDOE), Washington DC (United States). Office of Legacy Management (LM)
The environmental remediation closure process for the nuclear test at the Central Nevada Test Area (CNTA) has progressed from the approved Corrective Action Decision Document/Corrective Action Plan (CADD/CAP) to this addendum. The closure process required the installation of three monitoring/validation (MV) wells and validation analysis of the flow and transport model. The model validation analysis led to the conclusion that the hydraulic heads simulated by the flow model did not adequately predict observed heads at the MV-1, MV-2, and MV-3 validation points (wells and piezometers). The observed heads from screened intervals near the test horizon were higher than the model predicted and are believed to be the result of detonation-related effects that have persisted since the nuclear test. These effects, which include elevated heads out from the detonation zone and lower heads in the immediate vicinity of the detonation, are seen at other nuclear tests and typically dissipate within a few years. These effects were not included in the initial head distribution of the model. The head variations at CNTA are believed to have persisted due to the very low permeability of the material at the detonation level.
- Research Organization:
- US Department of Energy (USDOE), Washington DC (United States). Office of Legacy Management (LM)
- Sponsoring Organization:
- USDOE Office of Legacy Management (LM)
- DOE Contract Number:
- AC01-02GJ79491
- OSTI ID:
- 2565329
- Report Number(s):
- DOE-LM--1555-2007
- Country of Publication:
- United States
- Language:
- English
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