Cliff Retreat Rates Associated with a Low-Level Radioactive Waste Disposal Facility in Los Alamos, New Mexico, USA

Autor: Brent Goehring, Elizabeth Miller, Kay Birdsell, Emily S. Schultz-Fellenz, Richard Kelley, Sean French, Philip H. Stauffer
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: GeoHazards, Vol 5, Iss 2, Pp 547-558 (2024)
Druh dokumentu: article
ISSN: 2624-795X
DOI: 10.3390/geohazards5020028
Popis: We present an analysis and interpretation of potential cliff stability at a low-level waste disposal facility at Los Alamos National Laboratory, New Mexico, using cliff morphologic and fracture characteristics coupled with carbon-14 surface exposure dating. Our study is important as it directly bears on the licensing criteria for low-level radioactive waste sites. We find that future characteristic cliff failures will likely not breach disposal pits and shafts over the 1000-year minimum regulatory period. Further, we find, using a multivariate regression model, that slope angle and cliff face aspect are sub-equal in importance to predict regions of high risk of failure when combined with surface exposure ages and assuming that old exposure ages are most indicative of stability (instability) and therefore can aid decision making in final design implementation.
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