Uranium Mine and Mill Site Reclamation
Tetra Tech provided consulting services for reclamation of a uranium mine and mill site at Gas Hills, Wyoming. The project included design for reclamation of an inactive tailings impoundment, two mine ore excavations, and two evaporation ponds.
Tetra Tech also performed a site-wide hydrology study, a characterization study of the groundwater and geochemistry, and a risk assessment analysis for cleanup of radiological contaminants.
Tetra Tech provided the following services:
- Analyses of the existing cover system on the inactive tailings impoundment and design of an enhanced cover to provide adequate erosion protection for the 1,000-year design life
- Cover design for the two mine ore excavations and two evaporation ponds including geotechnical stability analyses, settlement analyses, radon attenuation analyses, infiltration analyses, and erosion protection design
- Characterization of subsurface flow conditions and contaminant transport mechanisms
- Groundwater characterization and preliminary assessment of remedial action alternatives
- Radiological investigation and risk assessment to evaluate potential radiological risk to the public and to evaluate the feasibility of remedial action alternatives
