Abstract:
The geology of Gosa and Dei-Dei, in Abuja,
therefore, makes the groundwater conditions in
the area very unpredictable, and so jeopardizes
the fulfilment of the water supply needs of one of
the fastest growing cities in Nigeria. Vertical
Electrical Sounding (VES) was carried out at two
locations within and around Gosa and Dei-Dei
area to detect the depth to the aquifer and water
quality investigation. The study involves the
hydrochemical characterisation of waters to
ascertain their physico chemical, quality and
suitability for domestic purposes. The borehole
depths measuring 62m at Gosa with low yield and
70m at Dei-Dei with good yield of static water
level of 4-6m thick were analysed for their cations
and anions contamination. In Gosa, the chemical
analysis was within the limit of WHO standard.
Consequently, at Dei-Dei, some results of the
chemical; Mg2+ (74mg/l) Ca2+ (86mg/l), Total
hardness (160mg/l), Phosphate (1.3mg/l), Fe
(0.78mg/l), Mn (0.731) were above the limit for
drinking water. The contaminant could be some
precipitation, transported through a typical
aquifereous medium. Petrophysically, the caves or
fractured openings through different rock types
maybe in solution as ion, molecules and colloids
or may have acquired their chemistry from the
IJERTV2IS120181
basement rocks, dissolution of Silicate, Nitrate
and cation exchange reactions. The contamination
detection
above WHO standard, therefore
consider the water not suitable for drinking.
Recommends further work for radionuclide in
groundwater.
