Aquatic Effects Monitoring Program (AEMP) Response Framework, Comments on Version 3.0, Ekati Diamond Mine (Independent Environmental Monitoring Agency, October 2018)
The Independent Environmental Monitoring Agency submits comments on Dominion Diamond's Aquatic Response Framework v3.0, challenging the proposed fluoride benchmark of 1.5 mg/L and recommending retention of the 0.27 mg/L benchmark based on toxicity data and concerns about protection of lake trout as a valued ecosystem component. The Agency also recommends inclusion of sediment quality criteria for selenium in the ARF due to increasing selenium levels observed in fish tissues and sediments in Leslie Lake.
- Date
- Document type
- Letter
- Parties
- Independent Environmental Monitoring Agency, Wek'eezhii Land and Water Board, Dominion Diamond Ekati ULC, Joseph Mackenzie, ERM, Health Canada, Canadian Council of Ministers of the Environment, BC Ministry of Environment, Diavik Diamond Mine, Snap Lake Mine, Tłı̨cho Government, Yellowknives Dene First Nation, Łutsel K'e Dene First Nation, North Slave Metis Alliance, Kitikmeot Inuit Association, Government of the Northwest Territories, Indigenous and Northern Affairs Canada
- Locations
- Ekati Diamond Mine, Yellowknife, Northwest Territories, Koala Watershed, Leslie Lake, Snap Lake, Diavik
- Parameters
- fluoride, aquatic life, water quality, sediment quality, selenium, fish toxicity, lake trout, water hardness, calcium fluoride, aquatic response framework, toxicity reference value, site-specific risk-based closure criteria
- Pages
- 5
Original document
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