TITLE:
Perimeters of Protection Demarcation for New Boreholes of Bonoua Aquifer (Southeastern, Côte d’Ivoire) through Hydrogeological Modeling
AUTHORS:
Kouamé Kan Jean, Aké Gabriel Etienne, Koblan Armel Kouadio, Djé Kouakou Bernard, Jourda Jean Patrice
KEYWORDS:
Boreholes, Hydrogeological Modeling, Perimeters of Protection, Visual Modflow, Bonoua Aquifer
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.5 No.11,
November
16,
2017
ABSTRACT: Located in the southeastern of Côte d’Ivoire, Bonoua aquifer contains an enormous groundwater potential. The new boreholes have been realized in this region to support the water supply of the populations. Moreover, in this region, agriculture is the main activity, whose pesticides used to guarantee the productivity, constitute a threat for groundwater. Thus, this study was undertaken in order to design a hydrogeological model able to simulate the piezometry of the Bonoua aquifer and determine the perimeters of protection for the new boreholes. The model, carried out under the Visual Modflow interface, was designed in steady-state mode and calibrated manually from the piezometry of the year 2000. The value of the standardized root mean squared residual of 4.86% (