Kinross began removing construction fill from the surface of the mine site and putting it underground even before they finished mining, but that has not reduced the pollution problem. Once mining was complete in 2017, Kinross rapidly began moving the rest of the construction fill into the underground mine shafts; even the fill that was under the treatment facility was moved. To do this, they dismantled the facility without authorization, leaving the mine site without a working treatment facility for a period of six months.
At this point, most of the buildings have been removed and the ground surface has been recontoured and seeded. On the surface, things are looking more natural. However, downgradient wells are still high in sulfates and other contaminants.