<prompt> Yakha inguqulo eyinkimbinkimbi yalesi sigwebo Umzila ubuye uqhubeke empumalanga usuka eHay River, NWT, ngasogwini oluseningizimu yeGreat Slave Lake, uye emayini ePine Point Mine.  <response>: Yiqiniso, inguqulo eyinkimbinkimbi yomusho ithi Umugqa ubuye uqhubeke empumalanga usuka eHay River, NWT, ogwini oluseningizimu yeGreat Slave Lake, uye emayini ePine Point, kodwa-ke le ngxenye yashiywa ngo-1992 lapho ukuthunyelwa kwe-concentrate kusuka emayini evaliwe kuyeka. 