The Yukon Kuskokwim region has an abundant supply of fresh surface water, with about 20 inches of annual precipitation at the project site. Donlin Gold is committed to protecting local water sources from pollution and has been conducting surface-water-quality monitoring and groundwater-quality monitoring as part of the baseline studies for the project for over a decade.
Any water that comes in contact with the mine, such as rainwater or snowmelt, would be diverted into a contact-water pond. The pond would be used to supply water for the mill. A freshwater reservoir could also provide an additional supply of water for processing, as well as other emergencies and unexpected situations, like fires.
Before any water is discharged into the environment, it will be treated to meet strict water-quality standards. Donlin Gold is also looking at different methods of recycling water to help reduce water use.