Amadi A.N.
Department of Geology, Federal University of Technology, PMB 65, Minna
Nwankwoala H.O.
Department of Geology, University of Port Harcourt, P.M.B 5323, Choba, Port Harcourt, Nigeria
Jimoh M. O.
Department of Geology, Federal University of Technology, PMB 65, Minna
Dan-Hassan M. A.
Rural Water Supply and Sanitation Department, FCT Water Board, Garki, Abuja