CGRG Bibliography of Canadian Geomorphology
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Author : Chapman, A.-M.; Pugin, A.; Pullan, S.E.; Hunter, J.A.; Cummings, D.; Sharpe, D.R.; and Russell, H.A.J.
Date : 2006.
Title : Project Unit 06-025. Characterization of the Vars–Winchester esker aquifer,South Nation River Watershed, eastern Ontario.
Publication : Summary of Field Work and Other Activities 2006, Ontario Geological Survey.Queen's Printer for Ontario.
Issue : Open File Report 6192.
Page(s) : 35-1 to 25-9.
Abstract
The Ontario Geological Survey (OGS), along with the Ministry of Environment and the Eastern Ontario Water Resources Committee, is funding a multi-disciplinary study of the Vars–Winchester esker aquifer. In partnership with the Geological Survey of Canada (GSC) and the University of Ottawa, the South Nation River Conservation Authority has undertaken the field work to delineate and characterize the Vars–Winchester esker aquifer, from which the communities of Vars, Limoges, Embrun, Winchester and Chesterville draw water. This study will provide data that will help municipalities in their delineation of wellhead protection areas. The development of hydrogeological models to estimate groundwater flow in the Vars–Winchester esker aquifer has been hampered by a lack of knowledge of the size, shape and internal heterogeneity of the esker aquifer. The geology and hydrogeology of the Vars–Winchester esker aquifer has been studied by a number of consultants near municipal-well locations (e.g., INTERA 2005). However, the nature of the esker aquifer between municipal wellhead areas is virtually unknown. This has sometimes contributed to the development of wellhead protection areas that are at odds with the local geology. Specifically, some preliminary numerical models suggest wellhead protection zones be placed perpendicular to the actual trend of the esker (Robinson Consultants Inc. 2004). It is believed that results such as these are related to a poor understanding of the geology of the esker and that additional geological data will improve the accuracy of model projections. The field work undertaken in this study will focus on the regions not covered in previous municipal groundwater and other studies. Combining the knowledge gained from this study and data from existing studies will provide a comprehensive understanding of the esker and create a more accurate hydrogeological model for the region. The primary objective of this study is to obtain a detailed understanding of three-dimensional composition, variable hydrogeological characteristics and groundwater flow within the Vars–Winchester esker complex.
Bibliography of Canadian Geomorphology