HR: 0830h
AN: H21A-02    [Abstracts]
TI: Sustainability Analysis of the Water Resources and Supply of the Vieux Fort Region of Saint Lucia
AU: * Coles, D
EM: dcoles@erl.mit.edu
AF: Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology 77 Massachusetts Ave., Cambridge, MA 02139 United States
AU: * Coles, D
EM: dcoles@erl.mit.edu
AF: Earth Resources Laboratory, Massachusetts Institute of Technology 42 Carleton St. E34-412, Cambridge, MA 02142 United States
AU: Johnson, B
EM: bgj@mit.edu
AF: Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology 77 Massachusetts Ave., Cambridge, MA 02139 United States
AU: Morgan, F
EM: morgan@erl.mit.edu
AF: Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology 77 Massachusetts Ave., Cambridge, MA 02139 United States
AU: Morgan, F
EM: morgan@erl.mit.edu
AF: Earth Resources Laboratory, Massachusetts Institute of Technology 42 Carleton St. E34-412, Cambridge, MA 02142 United States
AB: In the Vieux Fort region of the Caribbean island of St. Lucia, water needs are becoming acute. The water supply shortfalls during the dry season will continue to grow as population and development increase, unless action is taken. Actions to address the problem should include measures to optimize the present water delivery system and the development of a new supply, through new intakes, groundwater, or reservoir construction. An investigation into the potential for groundwater resources using electrical resistivity soundings indicated a likely pervasive, shallow aquitard of clay materials below the water table; the shallowness of this aquitard virtually precludes the existence of productive perched aquifers. Consequently, a model of Grande Riviere du Vieux Fort (Big Vieux Fort River) seasonal surface-water flow was developed, based on a digital elevation model and rainfall data, allowing us to analyze the possible productivity of any new intakes placed along the river. A specific site downstream of the present intake was recommended for potential development. Recommendations were given for short, medium and long-term development of the resources and supply of the Vieux Fort region of southern St. Lucia.
DE: 1829 Groundwater hydrology
DE: 1857 Reservoirs (surface)
DE: 1860 Runoff and streamflow
DE: 6344 System operation and management
SC: Hydrology [H]
MN: 2005 Joint Assembly