Aquatic Effects Monitoring Program (AEMP) Selenium Response Plan, Version 1.1, Ekati Diamond Mine (Dominion Diamond, June 2017)
This Aquatic Response Plan for Selenium Version 1.1 documents Dominion Diamond Ekati Corporation's response to elevated selenium concentrations detected in Cujo Lake during winter 2016, which triggered a low action level under the Aquatic Response Framework. The plan proposes revised action levels based on the US EPA's 2016 lentic water quality criterion (0.0015 mg/L) and describes ongoing selenium control measures, with findings indicating the elevation was temporary and unlikely to cause adverse ecological or human health effects.
- Date
- 2017-06-16
- Document type
- report
- Parties
- Dominion Diamond Ekati Corporation, Wek'èezhìi Land and Water Board, ERM Consultants Canada Ltd., Independent Environmental Monitoring Agency
- Locations
- Ekati Diamond Mine, Northwest Territories, Yellowknife, Cujo Lake, King Pond Settling Facility, Misery Pit, Desperation Pond, Lynx Lake, Lac de Gras, Lac du Sauvage
- Parameters
- selenium, water quality, aquatic effects monitoring, bioaccumulation, fish tissue concentrations, action levels, effluent quality criteria, water column criteria, lentic environments, lotic environments, toxicity thresholds, reproductive effects, benthic organisms, food web transfer
- Pages
- 29
Original document
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