EventDiavik Diamond Mine has begun filling pits A21, A418 and A154 with water from Lac de Gras, marking a key reclamation milestone toward closing the site by 2030. Nine siphons pump up to 850 L/s and fish screens protect aquatic life while traditional‑knowledge monitors observe the work.
Diavik Diamond Mine is filling three open pits—A21, A418, and A154—with water from Lac de Gras, a key step toward reconnecting the pits to the lake and completing active closure by 2030. Nine siphons can deliver up to 850 L/s, with fish screens in place, while traditional knowledge monitors oversee the process.
Rio Tinto is filling Diavik’s open‑pit mines with water from Lac de Gras using nine siphons at 850 L/s and installing fish screens to protect the lake’s ecosystem; the process should take six to twelve months.
