Engineering assessment of inactive uranium mill tailings, Shiprock Site, Shiprock, New Mexico. A summary of the Phase II, Title I
Ford, Bacon and Davis Utah Inc. has performed an engineering assessment of the problems resulting from the existence of radioactive uranium mill tailings at Shiprock, New Mexico. The Phase II, Title I services include the preparation of topographic maps, the performance of core drillings and radiometric measurements sufficient to determine areas and volumes of tailings and other radium-contaminated materials, the evaluation of resulting radiation exposures of individuals and nearby populations, the investigation of site hydrology and meteorology and the evaluation and costing of alternative corrective actions. Radon gas release from the 1.7 million tons of tailings at the Shiprock site constitutes the most significant environmental impact, although windblown tailings and external gamma radiation are also factors. The 11 alternative actions presented range from completion of the present ongoing EPA site decontamination plan (Option I), to stabilizing in-place with varying depths of cover material (Options II-IV), to removal to an isolated long-term disposal site (Options V-XI). All options include remedial action costs for off-site locations where tailings have been placed. Costs estimates for the 11 options range from $540,000 to $12,500,000. Reprocessing the tailings for uranium is not economically feasible.
- Research Organization:
- Ford, Bacon and Davis Utah, Inc., Salt Lake City (USA)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- EY-76-C-13-1658
- OSTI ID:
- 5276613
- Report Number(s):
- GJT-2S
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
MILL TAILINGS
ENVIRONMENTAL EFFECTS
NEW MEXICO
URANIUM MINES
URANIUM ORES
ORE PROCESSING
CONTAMINATION
COST
DECONTAMINATION
DRILL CORES
RADIOMETERS
RADIUM
RADON
ALKALINE EARTH METALS
CLEANING
ELEMENTS
MEASURING INSTRUMENTS
METALS
MINES
NONMETALS
NORTH AMERICA
ORES
PROCESSING
RADIATION DETECTORS
RARE GASES
SOLID WASTES
USA
WASTES
050300* - Nuclear Fuels- Mining- (-1987)
053000 - Nuclear Fuels- Environmental Aspects