There is limited knowledge about the quality, quantity and location of groundwater near NWT borders in the Mackenzie River Basin. To understand gaps in knowledge, a report was completed to describe what is known about groundwater resources, uses and monitoring, along with potential impacts to groundwater. The report will support development of Groundwater Learning Plans. Development of these plans is a commitment in NWT transboundary water management agreements with Alberta and British Columbia for areas where there are moderate levels of existing or proposed development and/or areas considered vulnerable.