Environmental Impact Report (EIR) Technical Session & Related IEMA Meeting Materials, Ekati Diamond Mine (BHP Billiton, March to September 2012)

Agenda — BHP Billiton Canada Inc. Environmental Impact Report (EIR) Technical Session for the EKATI Diamond Mine, Katimavik Room, Explorer Hotel, July 9-11 2012. Day 1 covers Completion of the Panda Diversion Channel (PDC) Monitoring Program (constructed 1997 as compensation for stream-habitat loss, 10-year monitoring) by François Landry (Rescan Environmental Services Ltd.) — comparison to Pigeon and Polar-Vulture Streams reference systems. Day 2 covers EIR Technical Session including the Effluent Discharge Plan to restore Long Lake Containment Facility (LLCF) Emergency Storage Capacity through winter/spring (within allowable flow rates) and EKATI Site-Specific Water Quality Objective (SSWQO) for Nitrate.