Ruptured line spills tailings at Pogo

Sumitomo Metal Mining Pogo May 7 reported to Alaska Department of Environmental Conservation that a ruptured line spilled roughly 90,000 gallons of paste backfill at the Pogo gold mine in Interior Alaska. The 8-inch line delivers paste backfill, a mixture of tailings and cement, into the underground mine for disposal. Once underground, the concrete created from the tailings fills mined-out areas,...