• Dr. Robertson is a member of the Peer Review panel appointed to comment on alternative closure plans.

• Dr. Wels is in charge of groundwater quality data interpretation and impact evaluation. He has also been responsible for the pre-feasability design of a groundwater interception system for the Rose Creek aquifer.

• RGC staff have in addition provided the following services:
  Site investigation work including a number of drilling, sampling and testing programs for:
  • drilling and sampling for geochemical characterization of the tailings and waste rock
  • laboratory test programs for the determination of acid generating potential of both tailings and waste rock; geotechnical testing of wastes and foundation materials to determine physical properties and performance in earth structures.
  • investigations of foundation conditions under critical structure, and sources and properties of construction materials
  • investigation of groundwater conditions and contaminated plume development
  • hydrological conditions determination, surface waste quality sampling and characterization

  Engineering evaluations and designs including:

  • modelling of surface and groundwater conditions and plume potential assessment. Maximum probable flood and other extreme events determinations.
  • determinations of stability of tailings dams, waste rock dump and all diversion channels and structures
  • water balance and contaminated balance modelling over the long term to determine water management, collection and treatment requirements for long term closure measures and funding
  • design of all geochemical control measures (covers, diversion works, contaminant collection ditches, swamps, dams, treatment plants, sludge disposal systems)
  • design of all physical control structures, water run off and control ditches, dams, spillways, pipelines and pumping systems stabilization measures
  • preparation of cost estimates for constructions and closure fund establishment

Photos:

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