Browsing by Author "Korode, A. I."

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    Geogenic and Anthropogenic Sources of Groundwater Contamination in Osubi Community and its environs, Warri, Delta State, Nigeria.
    (Journal of Applied Sciences and Environmental Management, 2025-10) Osisanya, O. W.; Onifade, Y. S.; Olaseni, V.B.; Korode, A. I.; Sharafa, J. O.
    Groundwater contamination poses a significant challenge to water quality, especially in regions with limited access to clean water. Consequently, the objective of this paper is to investigate the Geogenic and Anthropogenic Sources of Groundwater Contamination in Osubi Community and its environs, Warri, Delta State, Nigeria using the Wenner-Schlumberger array and vertical electrical sounding (VES). The results revealed resistivity values ranging from 5.5 Ωm to 121,387.6 Ωm, with several zones showing very low resistivity indicative of contamination. Notably, contamination was observed primarily in hallow surface layers, with certain areas such as Samuel Ariko Street and Airport Hotel Street exhibiting significant resistivity anomalies. These low resistivity zones suggest the presence of pollutants, though the specific geogenic or natural origin remains unclear, as no typical anthropogenic sources, such as waste disposal sites or industrial discharge were identified. The findings imply that groundwater contamination in Osubi may result from natural geochemical processes, possibly related to the local geology or subsurface conditions, rather than from human activity. This study underscores the need for a deeper understanding of regional groundwater systems and the application of geophysical techniques in identifying contamination sources in areas where traditional water quality assessments may fall short. Recommendations for further research and mitigation strategies are discussed to address the growing concerns of water safety in the region.
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    Geotechnical Investigation of a Proposed Dam Project, Iyah Gbede, Kogi State, Nigeria
    (RSIS International, 2021) Oyanameh, O. E.; Olabode, O. O.; Korode, A. I.; Osisanya, O.W.; Fatoye, O. V.
    Geotechnical study was conducted at the proposed Dam project of Iyah Gbede, Ijimu Local Government Area of Kogi State with the aim of evaluating the subsoil layers that constitute the foundation soils and their competence as foundation soils for the civil engineering structures. The study involved drilling of three (3) boreholes and eleven (11) trial pits as well as Standard Penetration Test (SPT) to obtain the in situ strength parameters of the sandy layers. The lithological formations that constitute the study area layers are lateritic top soil, grey brown sandy clay, yellowish brown coarse sand, gravel and weathered rock. All the soils have average natural moisture content because it agrees with the average range of (5 – 15%) specified by Federal Ministry of Works and Housing FMWH, (1997) for civil engineering construction which is an indication of low water absorption capacities of the soil materials. The results of the geotechnical parameters of the soils obtained indicate good characteristics as construction materials with good bearing strength, good baseline information and foundation design for the establishment of the proposed dam site. .