Lake Miwasin is a pilot-scale constructed pit-lake created to evaluate potential permanent storage of tailings produced through the oil-sand extraction processes. The adjacent constructed upland design is being evaluated for its potential to provide adequate supply of water to maintain the freshwater cap of the lake. In this study, the storage and connectivity of the upland is assessed for its ability to transmit water to the lake in its current configuration. Few studies are available on the use of constructed pit-lake systems in the Athabasca Oil Sands Region (AOSR) and this study aims to build upon the current knowledge to provide better understanding of early phase pit-lake watershed hydrology. The system is made up of 3 hummocks drained by 4 swales connecting to a single inlet weir at the lake. A network of shallow, deep and surface event wells have been installed to monitor the development of the water table and swale flow over a period of 4 years. Using the hydrophysical properties of the placed material and its evolution, water table responses, flow measurements and simple water chemistry, the connections between HRUs and their effectiveness can be assessed. Early results indicate that regional groundwater connectivity appears to be limited, with a perched system enhancing the importance of shallow groundwater dynamics. Shallow groundwater connections are potentially more effective for driving supply to the lake than overland flow via the drainage swales.