The operators of the Rosebery mine have today advised the EPA of the unintentional release of mine water into Rosebery Creek.
EPA Director Alex Schaap said the release occurred because of multiple pump failures early this morning which caused mine water to overflow and enter the creek.
"The discharge has now been stopped," Mr. Schaap said. "Company monitoring of the mine water entering the creek indicates that it does contain traces of zinc and other metals. The reported levels are not substantially greater than the levels of those metals normally found in the creek. The creek is unfortunately already degraded by historic pollution impacts. The mine water discharge was also quite turbid with suspended muddy sediments but that has now cleared."
"The release does not impact on drinking water supplies as it is well downstream of drinking water intakes. Both the creek and the region of Lake Pieman into which it flows are being monitored to determine if any environmental impacts are evident.”