Geophysical Investigation for Groundwater Resources at the Soto Cano Air Base, Honduras
Abstract:
A geophysical investigation was undertaken to explore the potential f or further ground water development around the Soto Cano air base, Honduras. Electrical resistivity vertical sounding and horizontal profiling were utilized. The main ground-water aquifer in the area, a buried river channel now filled with gravel, was clearly defined. A tributary to this aquifer was also detected. Currently, the main ground-water aquifer has reached its capacity in the driest part of the year and additional water resources are needed at the current level of demand. A location southeast of the air base was determined for an exploratory water well which has possible yields of 20 to 60 gpm. Similar capacities may be achieved with a carefully located well in the tributary channel aquifer under the air base. Additional geophysical studies are recommended to determine the precise location of the tributary channel aquifer, locate another aquifer at the east edge of the Comayagua valley and Rio Canquigue, and investigate the feasibility of a deep 1000 meters well. It is also recommended that an aquifer management program be initiated where withdrawal flows are metered-and charted, monitoring wells are installed, and the aquifer drawdown observed and projected.