The federal government is responsible for more than 20,000 contaminated sites in Canada. Here is a breakdown of the top five most expensive environmental cleanups where taxpayers are footing the bill. In some cases, public cost estimates have not been updated for several years. Giant Mine Estimated to cost $4.38 billion between 2005 and 2038.
Gold, arsenic and murder: A look at the complex history of N.W.T.’s Giant Mine
A team working to address environmental and health effects from a former gold mine outside Yellowknife has provided an update on the effort to clean up one of the most contaminated places in Canada. The Giant Mine Remediation Project, co-managed by the Canadian and Northwest Territories governments, is expected to take until 2038 to complete. Arsenic trioxide waste stored underground is anticipated to require perpetual maintenance.