Panda Waste Rock Storage Area, Beartooth Bearclaw Drainage, 2000 Seepage and Waste Rock Survey Report, Ekati Diamond Mine (SRK Consulting, February 2001)
This 2000 seepage and waste rock survey report documents BHP Diamonds' investigation into acidic seepage detected from the Panda waste rock storage area at Ekati Diamond Mine, fulfilling requirements of Water Licence N7L2-1616. The expanded monitoring program tested multiple hypotheses for low pH seepage including precipitation acidity, organic decomposition, sulphide mineral oxidation, and ammonia oxidation, with results indicating that low pH is primarily due to natural acidic precipitation and plant decomposition, with one seep showing evidence of sulphide mineral oxidation but overall low toxicity risk to aquatic organisms.
- Date
- 2001-02-01
- Document type
- report
- Parties
- BHP Diamonds Inc., SRK Consulting, Steffen Robertson and Kirsten (Canada) Inc., Mackenzie Valley Land and Water Board, Independent Environmental Monitoring Agency, EBA Engineering, Klohn Crippen, ABR Inc., Microbial Technologies, Rescan Environmental Services, ALS-Chemex Laboratories, EP Laboratories, Envirotest Laboratories
- Locations
- Ekati Diamond Mine, Panda Pit, Panda Waste Rock Storage Area, Beartooth Lake, Bearclaw Lake, Beartooth-Bearclaw Drainage, Northwest Territories, Yellowknife, Lac de Gras, Exeter Lake, Sable Area, Koala Granite, Long Lake Containment Facility, Lacde Gras area
- Parameters
- water quality, seepage, pH, waste rock characterization, acid rock drainage, sulphide minerals, carbonate minerals, aluminum, copper, iron sulphide, ammonia, sulphate, organic decomposition, groundwater, hydraulic conductivity, toxicity, precipitation, snow chemistry, soil and vegetation, thermal monitoring, permafrost, oxidation
- Pages
- 122
Original document
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