Graph of water level fluctuation in water point

Hydrogeological sketch map

Obi-Lafia coal Geophysical Borehole Logs (46 Nos.)

Result of Bailing and Resistivity Logging (2 Nos.)

Iso-Sulphur Map of Seam 12

Stratigraphic scale

Map of ground water table

Reserve Estimation Seam 13

Reserve estimation seam 12 (3 Nos.)

Hydrogeological result of water pumping from shaft 2