|Title||A 3D unified geological conceptual model of the Milk River Transboundary Aquifer (Alberta-Montana)|
|Author||Pétré, M -A; Rivera, A; Lefebvre, R|
|Source||39th International Association of Hydrogeologists (IAH) Congress, abstracts; 2012 p. 1|
|Alt Series||Earth Sciences Sector, Contribution Series 20120337|
|Meeting||39th International Association of Hydrogeologists (IAH) Congress; Niagara Falls; CA; September 16-21, 2012|
|NTS||72E/01; 72E/03; 72E/04; 82H/01|
|Area||Milk River; Southern Alberta; Northern Montana; Canada; United States|
|Lat/Long WENS||-112.5000 -110.0000 50.2500 48.0000|
|Subjects||hydrogeology; aquifers; groundwater; groundwater resources; groundwater regimes; models; modelling|
|Program||Aquifer Assessment & support to mapping, Groundwater Geoscience|
|Abstract||The Milk River transboundary aquifer is located between southern Alberta (Canada) and northern Montana (United States), in a semi-arid region considered water short. This confined sandstone aquifer is a
source for municipal supply and agricultural uses on the Canadian side, as well as for secondary oil recovery on the US-side of the border. |
The transboundary aquifer is part of the inventory of UNESCO ISARM-Americas initiative, which encourages
riparian states to work cooperatively toward mutually beneficial and sustainable aquifer development.
Under this context, a unified geological conceptual 3D model of the aquifer has been developed. The unified conceptual model covers circa 70,000
square kilometres. The study area is limited to the North/Northeast and Southeast by gas fields. The unified conceptual model will form the basis for a future 3D hydrogeological model of the Milk River aquifer across the Canada-US border.
current interpretation of the conceptual model is leading us to the possible assessment of the aquifer using a two-phase numerical model to evaluate the impact of gas present in the aquifer.
The objectives of this study are to better understand
the dynamics of the Milk River aquifer's in order to make recommendations for a sustainable management and its good governance by the two international jurisdictions, as recommended in the UNGA resolution 63/124 on the Law of Transboundary Aquifers.
These models constitute useful tools for informed decisions; they support scientists and managers from both countries in avoiding potential tensions linked to the water shortage context in this region.