Hydro-geochemical and Geophysical Study of Groundwater in the Suburb of Osogbo, South Western Nigeria

Abstract

In an attempt to carry out the assessment of groundwater quality from hand dug wells and streams in Onibu-Eja and Aduramigba communities, suburb of Oshogbo, South Western Nigeria, with a view to determine the impact of a nearby dumpsite on the groundwater quality, twenty (20) water samples were taken randomly at varying depths within the vicinity. The cation and heavy metal analyses were done in accordance to APHA standard using the Atomic Absorption Spectrophotometry (AAS) while the anion analyses were carried out using the ion chromatography and titrimetric methods. Physical parameters were measured on the field.The results observed showed that the water in the study area contains a relatively high amount of calcium, magnesium, and bicarbonate, an indication of temporary hardness. The hydro-geochemical contour maps of the ions shows that cations, anions and heavy metal content where mostly concentrated in the western and eastern parts of the study area. The analyses of the water samples and streams in the study area fall within the acceptable range of World Health Organization (WHO) and the Nigerian Standard of potable drinking water with the exception of the stream despite their proximity to the dumpsite.Vertical Electrical Sounding (VES) carried out on the dumpsite showed that the study area is overlain by a 0.3 to 1.1 m thick lateritic topsoil with resistivity values between 104 ohm m and 437 ohm m which serves as a hard pan over a 7 to 13 m thick predominantly clayey / weathered layer interval with a resistivity value between 35 to 80 ohms meter. Both of these prevent the leachate from percolating into the groundwater in the study area.

Integrated Geophysical and Hydrogeochemical Characterization and Assessment of Groundwater Studies in Adum West Area of Benue State,Nigeria

“…Hydrogeochemical model such as Gibbs, Chadba and Soltan derive from equation 7 to 9 was used to characterize groundwater within the study area. According to [46] groundwater experiences series of chemical reactions and impact processes as it moves from one region to another below the subsurface, Therefore hydrogeochemical assessment of groundwater is essentially mandatory to characterize groundwater in order to know the what it can be used for.…”

Hydro-Geochemistry and Application of Water Quality Index (WQI) for Ground Water Quality Assessment, Wadi Al-Samen—Hebron—West Bank

“…The process of moving groundwater between geological layers below the subsurface from one region to another faces a large number of chemical processes, and a change occurs in its chemical composition in colour, taste and smell. These processes include interaction with gases in the unsaturated zone and the chemical composition of recharge water in addition to water interactions with some human activities [13]. The investigation of the quality of groundwater chemistry is one of the hot topics and raises international interest due to its close association with sustainable development and environmental policies [14].…”

Hydro-Geochemistry and Application of Water Quality Index (WQI) for Ground Water Quality Assessment, Wadi Al-Samen—Hebron—West Bank

“…The process of moving groundwater between geological layers below the subsurface from one region to another faces a large number of chemical processes, and a change occurs in its chemical composition in colour, taste and smell. These processes include interaction with gases in the unsaturated zone and the chemical composition of recharge water in addition to water interactions with some human activities [13]. The investigation of the quality of groundwater chemistry is one of the hot topics and raises international interest due to its close association with sustainable development and environmental policies [14].…”