Tierra Group prepared a minor modification submittal for Rapid Infiltration Basins (RIBs) design modifications at Hecla Mining Company’s Fire Creek Mine. Design included converting existing RIBs into double-lined collections ponds with leak detection. Ancillary pipelines and pumps were also sized per the mine’s operating requirements.
Tierra Group also prepared a design to convert two RIBs into lined ponds with leak detection. After completing this design, Tierra Group evaluated design options for a hoist system to extract evaporators that will be used in the lined ponds.