Diavik Diamond Mine wants to dump mine waste into its pits

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Diavik Diamond Mine wants to dump mine waste into its pits – CBC

by ahnationtalk on April 17, 2019690 Views

Company wants to amend its water licence, triggers full environmental review

Apr 17, 2019

The Diavik Diamond Mine in the Northwest Territories wants to radically change the way it deals with mine waste at Lac de Gras.

The company filed for an amendment to its water licence with the Wek’eezhii Land and Water Board last year that would allow it to fill three mined-out pits with processed kimberlite — diamond-bearing rock — which includes waste rock and tailings known as slimes.

Right now, processed kimberlite is piled into a containment facility in the middle of the island where the mine operates, about 300 kilometres northeast of Yellowknife.