Geo-electrical Resistivity Assessment of the Groundwater Resources Potential of the Waradey Area, Eldas Sub-county, North Eastern Kenya

Dr. Meshack Owira Amimo, Jibril A. Shune


The Waradey Area is located in Eldas subcounty in the greater Wajir County. The area has lacked reliable water structures since independence and was the focus of a concerted geophysical mapping to help avail water to the local populace. To achieve this, Geoelectrical Resistivity Mapping and simulation Models using the GIS techniques were used. This achieved the goals of combining the geophysical models and the hydrogeologic models so generated to build a reliable picture of expectations of the proposed drilling program. The variables simulated using hydrogeologic modeling were aquifer transmissivity, flow-vectors showing direction of movement of water in the subsurface flow systems, salinity, and the aquifer geological material, as well as the water struck levels, which may be used to infer aquifer groundwater levels in the study area.  The geoelectrical models were used to simulate fractures, weathering and moisture content of the underground. The IPI2WIN software was used to model the geophysical VES data so generated. When the two models were combined (ie. both geophysical and hydrogeological), a picture of reliable groundwater potential emerged. On the basis of the foregoing, a well was surveyed and was recommended for drilling, to be discharging up to 10 cubic meters per hour. At worst the models projected a discharge of 2-6 cubic meters per hour. The study has shown the reliability of Vertical Electrical Sounding probes and geospatial models,  as  powerful groundwater exploration tools for the Eldas area, given the limited actual data of hydrogeological drilling in the study locality. 


Resistivity, GIS, Surfer, Basement, Water Struck Levels, Flow Vectors, Groundwater Levels, Schlumberger

Full Text:



Amimo, M. O., & Rakesh, K. S. S. The Binomial Logistic & Multiple Linear Regression-aided Mapping of Aquifer Sulphate Levels in the Landheer Area, Dadaab Sub-County.

Arifianto, I., Savitri, K. P., Priana, M. R. F., & Setianto, A. (2019, April). Groundwater exploration in volcanic morphology using geophysical schlumberger resistivity method, in Jeneponto, South Sulawesi Province. In The 13th SEGJ International Symposium, Tokyo, Japan, 12-14 November 2018 (pp. 414-417). Society of Exploration Geophysicists and Society of Exploration Geophysicists of Japan.

Bauman, P., Ernst, E., & Woods, L. (2017). Surface Geophysical Exploration for Groundwater at the Kakuma Refugee Camp in Turkana County, Kenya. CSEG Recorder, 42, 36-43.

Hasan, M., Shang, Y., Akhter, G., & Jin, W. (2018). Geophysical assessment of groundwater potential: a case study from Mian Channu Area, Pakistan. Groundwater, 56(5), 783-796.

Kanoti, J. R. (2021). The Geometry, Hydro-geochemistry and Vulnerability of Aquifers to Pollution in Urban and Rural Settings-a Case Study of Kisumu and Mt. Elgon Aquifers (Doctoral dissertation, University of Nairobi).

Nugraha, G. U., Nur, A. A., Pranantya, P. A., Lubis, R. F., & Bakti, H. (2022). Analysis of groundwater potential zones using Dar-Zarrouk parameters in Pangkalpinang city, Indonesia. Environment, Development and Sustainability, 1-23.

Oyeyemi, K. D., Aizebeokhai, A. P., Ndambuki, J. M., Sanuade, O. A., Olofinnade, O. M., Adagunodo, T. A., ... & Adeyemi, G. A. (2018, July). Estimation of aquifer hydraulic parameters from surficial geophysical methods: a case study of Ota, Southwestern Nigeria. In IOP Conference Series: Earth and Environmental Science (Vol. 173, No. 1, p. 012028). IOP Publishing.

Umar, E. P. (2018, February). Identification of subsurface layer with Wenner-Schlumberger arrays configuration geoelectrical method. In IOP Conference Series: Earth and Environmental Science (Vol. 118, No. 1, p. 012006). IOP Publishing.



  • There are currently no refbacks.

Copyright (c) 2022 Dr. Meshack Owira Amimo, Jibril A. Shune

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.