Alt No. 3 – Summary of FS Proposed Approach
Recycled oil phase
Process water for treatment
Solvent extraction process
Disposal
Offsite disposal maximizing beneficial reuse
Waste water treatment as required:
•Lagoons
•Process water
•Stormwater
•Excavation derived waste water
Disposal
Onsite stabilization
•Land spreading
•Pug mill
Waste material not requiring stabilization
Offsite disposal of Pit F waste
Working excavation face:
•To maximize productivity, more than one face may be used
•Emissions and odor control techniques in operation
Excavation standards
•Visual
•Chemical
Test treated residuals
Stockpile
“Like-with-Like”
Concrete cleaning, crushing for onsite reuse
Pit F excavation under controlled atmosphere enclosure