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TitleVulnérabilité à la nappe des aquifères fracturés du sud-ouest du Québec : évaluation par les méthodes DRASTIC et GOD
AuthorMurat, V; Paradis, D; Savard, M M; Nastev, M; Bourque, E; Hamel, A; Lefebvre, R; Martel, R
SourceGeological Survey of Canada, Current Research (Online) no. 2003-D3, 2003, 14 pages, (Open Access)
PublisherNatural Resources Canada
Mediaon-line; digital; CD-ROM
RelatedThis publication is contained in the following publications
File formatpdf
NTS31H/12; 31G/09
Aread Argenteuil; Mirabel; Deux-Montagnes; Thérèse-de-Blainville
Lat/Long WENS-74.5000 -73.5000 45.7500 45.5000
Subjectshydrogeology; environmental geology; aquifers; aquifer tests; groundwater pollution; groundwater regimes; surface waters; water table; water quality; software; GOD method; DRASTIC method
Illustrationssketch maps; diagrams; block diagrams; tables; flow charts
Released2003 03 14
AbstractThis study presents an assessment of the vulnerability of regional aquifers as part of the Geological Survey of Canada project of characterization of fractured-rock aquifers in southwestern Quebec. Vulnerability assessment uses the physical properties of the setting to evaluate the sensitivity of groundwater to all types of pollutants introduced from the ground surface. Two methods, DRASTIC and GOD,
were used for comparison purposes. Results indicate that the DRASTIC method yields a more detailed assessment. This method shows the higher vulnerability areas as coinciding with recharge zones in the northern, northwestern and southeastern parts of the study area, with the lower vulnerability areas located where clay cover is significant. When theGODmethod is used, the entire study area appears to have moderate vulnerability, which is not an adequate representation of the region.