International Science Community Association Research Journal of Chemical Sciences 2231 - 606X 7 9 2017 09 18 Hydrogeology and water chemistry of boreholes identified at the Hamadien continental / intercalary in the Zinder region in Niger 8 16 EN Deepa J. 1 Department of Chemistry, Auxilium College, katpadi, Vellore-6, India Jaya Shanthi R. 2 Department of Chemistry, Auxilium College, katpadi, Vellore-6, India Salifou Issa 1 Laboratoire d’Hydrologie Appliquée, Institut National de l\'Eau (INE), Université d’Abomey-Calavi, 01 BP 526, Cotonou01, Bénin and Laboratoire d’analyse des eaux de la Société d’Exploitation des Eaux du Niger (SEEN) de Zinder, Niger Daouda Mama 2 Laboratoire d’Hydrologie Appliquée, Institut National de l\'Eau (INE), Université d’Abomey-Calavi, 01 BP 526, Cotonou01, Bénin Zanguina Adamou 3 Département de Chimie, Faculté des Sciences et Techniques, Université Abdou Moumouni, B.P. 10662 Niamey, Niger Ibrahim Natatou 4 Département de Chimie, Faculté des Sciences et Techniques, Université Abdou Moumouni, B.P. 10662 Niamey, Niger Mousa Boukari 5 Laboratoire d’Hydrologie Appliquée, Institut National de l\'Eau (INE), Université d’Abomey-Calavi, 01 BP 526, Cotonou01, Bénin Dominique Sohounhloué 6 Laboratoire d’Étude et de Recherche en Chimie Appliquée (LERCA), École Polytechnique d’Abomey-Calavi (EPAC), Université d’Abomey-Calavi, Cotonou, Bénin > Research Paper 2017 7 5 2017 09 18 This work deals with the hydrogeology and water chemistry of the boreholes found in the aquifer of the Continental Intercalary in Zinder region, Republic of Niger. To do this, sixteen (16) sampling points, identified by GPS coordinates, were sampled during the year 2015, with a total of sixty four (64) samples analyzed. The characteristics of these waters were established on the basis of the Schöeller Berkaloff scheme. These waters present four types of facies, including chloride-type facies, which are present on 18.75% of the boreholes, with calcium and potassium sodic poles, and bicarbonate facies, which are observed on 81.25% of the boreholes with potassium and calcium sodium poles. All the drillings studied capture the aquifer of the Hamadien /Continental Intercalary. Copyright@ International Science Community Association