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TitleUsing borehole flowmeter data to optimize hydraulic conductivity characterization in heterogeneous unconsolidated aquifers
AuthorParadis, DORCID logo; Lefebvre, R; Morin, R H; Gloaguen, E
SourceProceedings of GeoHalifax 2009; 2009 p. 1-8
Alt SeriesEarth Sciences Sector, Contribution Series 20090090
MeetingGeoHalifax2009: 62nd Canadian Geotechnical Conference & 10th Joint CGS/IAH-CNC Groundwater Conference; Halifax; CA; September 20-24, 2009
Subjectshydrogeology; groundwater; groundwater circulation; groundwater flow; groundwater regimes; aquifers; hydraulic conductivity; hydrostratigraphic units
Illustrationsplots; profiles; tables; diagrams
ProgramGroundwater Mapping Program
Released2009 01 01
AbstractBorehole flowmeter measurements obtained during pumping can be effective in determining profiles of hydraulic conductivity (K). Few tests have been reported on flowmeter in full-screened wells that penetrate unconsolidated aquifers. In this paper, we demonstrate the utility of the flowmeter technique in quantifying the spatial variability of K and in distinguishing hydrofacies in an unconsolidated heterogeneous aquifer that exhibits low to moderate K. Results indicate that: (1) comparison of K values obtained from flowmeter measurements and multilevel slug tests shows differences consistently below 10%, and (2) individual hydrofacies can be delineated based upon K contrasts.

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