Aquatic Effects Monitoring Program (AEMP) Annual Report 2021, Part 1, Ekati Diamond Mine (Arctic Canadian Diamond Company, March 2022)
The 2021 Aquatic Effects Monitoring Program (AEMP) Annual Report for the Ekati Diamond Mine documents the results of comprehensive aquatic ecosystem monitoring across three watersheds (Koala, King-Cujo, and Horseshoe) and associated downstream lakes. The report evaluates mine-related effects on physical limnology, water quality, sediment quality, and aquatic biology, identifying multiple mine-related changes in water chemistry and plankton communities downstream of discharge facilities, with several Action Level exceedances requiring response plans.
- Date
- 2022-03-01
- Document type
- report
- Parties
- Arctic Canadian Diamond Company Ltd., ERM, Independent Environmental Monitoring Agency (IEMA)
- Locations
- Ekati Diamond Mine, Northwest Territories, Koala Watershed, Lac de Gras, King-Cujo Watershed, Lac du Sauvage, Horseshoe Watershed, Lower Exeter Lake, Pigeon-Fay Watershed, Upper Exeter Watershed, Long Lake Containment Facility, Panda pit, Koala pit, Fox pit, Beartooth pit, King Pond Settling Facility, Sable Pit, Two Rock Sedimentation Pond, Leslie Lake, Moose Lake, Nema Lake, Slipper Lake, Kodiak Lake, Cujo Lake, Ulu Lake, Horseshoe Lake, Logan Lake, Ross Lake, Counts Lake
- Parameters
- water quality, aquatic effects monitoring, physical limnology, dissolved oxygen, temperature, pH, alkalinity, water hardness, chloride, fluoride, sulphate, ammonia-N, nitrite-N, nitrate-N, phosphorus, organic carbon, antimony, arsenic, barium, boron, mercury, molybdenum, nickel, potassium, selenium, strontium, uranium, zinc, sediment quality, phytoplankton, zooplankton, benthos, small-bodied fish, Slimy Sculpin, fish tissue metals, streamflow, hydrology, climate, precipitation, air temperature, Secchi depth, chlorophyll a, fish condition factor, gonadosomatic index, liver somatic index, EROD activity, parasite infection
- Pages
- 863
Original document
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