Eight water models were used to assess potential\naquatic environmental effects of the proposed\nGahcho Kue�´ diamond mine on groundwater and surface\nwater flow and quality in the Northwest Territories,\nCanada. This sequence of models was required to cover\ndifferent spatial and temporal domains, as well as specific\nphysico-chemical processes that could not be simulated by\na single model. Where their domains overlapped, the\nmodels were interlinked. Feedback mechanisms amongst\nmodels were addressed through iterative simulations of\nlinked models. The models were used to test and refine\nmitigation plans, and in the development of aquatic component\nmonitoring programs. Key findings generated by\neach model are presented here as testable hypotheses that\ncan be evaluated after the mine is operational. This paper\ntherefore offers a record of assumptions and predictions\nthat can be used as a basis for post-validation
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