Site-specific analysis of the cobbly soils at the Grand Junction processing site
This report describes a recent site-specific analysis to evaluate the necessity of a recommendation to install a slurry trench around the Grand Junction processing site. The following analysis addresses the cobbly nature of the site`s radiologically contaminated foundation soil, reassesses the excavation depths based on bulk radionuclide concentrations, and presents data-based arguments that support the elimination of the initially proposed slurry trench. The slurry trench around the processing site was proposed by the Remedial Action Contractor (RAC) to minimize the amount of water encountered during excavation. The initial depths of excavation developed during conceptual design, which indicated the need for a slurry wall, were reexamined as part of this analysis. This reanalysis, based on bulk concentrations of a cobbly subsoil, supports decreasing the original excavation depth, limiting the dewatering quantities to those which can be dissipated by normal construction activities. This eliminates the need for a slurry trench andseparate water treatment prior to permitted discharge.
- Research Organization:
- USDOE Albuquerque Field Office, NM (United States). Uranium Mill Tailings Remedial Action Project Office
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-91AL62350
- OSTI ID:
- 10139629
- Report Number(s):
- DOE/UMTRA--050128-0000; ON: DE93010392
- Country of Publication:
- United States
- Language:
- English
Similar Records
Analysis of cobbly soils for cobbles-to-fines corrections to radionuclide concentrations at the New Rifle, Colorado, processing site
Site-specific analysis of radiological and physical parameters for cobbly soils at the Gunnison, Colorado, processing site
Related Subjects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
54 ENVIRONMENTAL SCIENCES
540230
540250
ABANDONED SITES
COLORADO RIVER
CONTAMINATION
EXCAVATION
GROUND WATER
HEALTH AND SAFETY
MILL TAILINGS
RADIATION MONITORING
RADIOACTIVE MATERIALS MONITORING AND TRANSPORT
REMEDIAL ACTION
REMOVAL
SITE CHARACTERIZATION
SITE RESOURCE AND USE STUDIES
SOILS